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/*******************************************************************************
* Copyright (c) 2000, 2022 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
* Lars Vogel - Bug 509648
*******************************************************************************/
package org.eclipse.swt.widgets;
import org.eclipse.swt.*;
import org.eclipse.swt.events.*;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.internal.*;
import org.eclipse.swt.internal.cairo.*;
import org.eclipse.swt.internal.gtk.*;
import org.eclipse.swt.internal.gtk3.*;
import org.eclipse.swt.internal.gtk4.*;
/**
* Instances of this class implement a selectable user interface
* object that displays a list of images and strings and issues
* notification when selected.
*
* The item children that may be added to instances of this class
* must be of type TableItem.
*
* Style VIRTUAL is used to create a Table whose
* TableItems are to be populated by the client on an on-demand basis
* instead of up-front. This can provide significant performance improvements for
* tables that are very large or for which TableItem population is
* expensive (for example, retrieving values from an external source).
*
* Here is an example of using a Table with style VIRTUAL:
*
* final Table table = new Table (parent, SWT.VIRTUAL | SWT.BORDER);
* table.setItemCount (1000000);
* table.addListener (SWT.SetData, new Listener () {
* public void handleEvent (Event event) {
* TableItem item = (TableItem) event.item;
* int index = table.indexOf (item);
* item.setText ("Item " + index);
* System.out.println (item.getText ());
* }
* });
*
*
* Note that although this class is a subclass of Composite,
* it does not normally make sense to add Control children to
* it, or set a layout on it, unless implementing something like a cell
* editor.
*
*
*
Styles:
*
SINGLE, MULTI, CHECK, FULL_SELECTION, HIDE_SELECTION, VIRTUAL, NO_SCROLL
* Note: Only one of the styles SINGLE, and MULTI may be specified.
*
* IMPORTANT: This class is not intended to be subclassed.
*
*
* @see Table, TableItem, TableColumn snippets
* @see SWT Example: ControlExample
* @see Sample code and further information
* @noextend This class is not intended to be subclassed by clients.
*/
public class Table extends Composite {
long modelHandle, checkRenderer;
int itemCount, columnCount, lastIndexOf, sortDirection;
int selectionCountOnPress,selectionCountOnRelease;
long ignoreCell;
TableItem [] items;
TableColumn [] columns;
TableItem currentItem;
TableColumn sortColumn;
ImageList imageList, headerImageList;
boolean firstCustomDraw;
/** True iff computeSize has never been called on this Table */
boolean firstCompute = true;
int drawState, drawFlags;
GdkRGBA background, foreground, drawForegroundRGBA;
Color headerBackground, headerForeground;
boolean ownerDraw, ignoreSize, pixbufSizeSet, hasChildren;
int maxWidth = 0;
int topIndex;
double cachedAdjustment, currentAdjustment;
int pixbufHeight, pixbufWidth;
int headerHeight;
boolean boundsChangedSinceLastDraw, headerVisible, wasScrolled;
boolean rowActivated;
private long headerCSSProvider;
static final int CHECKED_COLUMN = 0;
static final int GRAYED_COLUMN = 1;
static final int FOREGROUND_COLUMN = 2;
static final int BACKGROUND_COLUMN = 3;
static final int FONT_COLUMN = 4;
static final int FIRST_COLUMN = FONT_COLUMN + 1;
static final int CELL_PIXBUF = 0;
static final int CELL_TEXT = 1;
static final int CELL_FOREGROUND = 2;
static final int CELL_BACKGROUND = 3;
static final int CELL_FONT = 4;
static final int CELL_SURFACE = 5;
static final int CELL_TYPES = CELL_SURFACE + 1;
/**
* Constructs a new instance of this class given its parent
* and a style value describing its behavior and appearance.
*
* The style value is either one of the style constants defined in
* class SWT which is applicable to instances of this
* class, or must be built by bitwise OR'ing together
* (that is, using the int "|" operator) two or more
* of those SWT style constants. The class description
* lists the style constants that are applicable to the class.
* Style bits are also inherited from superclasses.
*
*
* @param parent a composite control which will be the parent of the new instance (cannot be null)
* @param style the style of control to construct
*
* @exception IllegalArgumentException
*
ERROR_NULL_ARGUMENT - if the parent is null
*
* @exception SWTException
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent
*
ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass
*
*
* @see SWT#SINGLE
* @see SWT#MULTI
* @see SWT#CHECK
* @see SWT#FULL_SELECTION
* @see SWT#HIDE_SELECTION
* @see SWT#VIRTUAL
* @see SWT#NO_SCROLL
* @see Widget#checkSubclass
* @see Widget#getStyle
*/
public Table (Composite parent, int style) {
super (parent, checkStyle (style));
}
@Override
void _addListener (int eventType, Listener listener) {
super._addListener (eventType, listener);
if (!ownerDraw) {
switch (eventType) {
case SWT.MeasureItem:
case SWT.EraseItem:
case SWT.PaintItem:
ownerDraw = true;
recreateRenderers ();
break;
}
}
}
TableItem _getItem (int index) {
if ((style & SWT.VIRTUAL) == 0) return items [index];
if (items [index] != null) return items [index];
return items [index] = new TableItem (this, SWT.NONE, index, false);
}
static int checkStyle (int style) {
/*
* Feature in Windows. Even when WS_HSCROLL or
* WS_VSCROLL is not specified, Windows creates
* trees and tables with scroll bars. The fix
* is to set H_SCROLL and V_SCROLL.
*
* NOTE: This code appears on all platforms so that
* applications have consistent scroll bar behavior.
*/
if ((style & SWT.NO_SCROLL) == 0) {
style |= SWT.H_SCROLL | SWT.V_SCROLL;
}
/* GTK is always FULL_SELECTION */
style |= SWT.FULL_SELECTION;
return checkBits (style, SWT.SINGLE, SWT.MULTI, 0, 0, 0, 0);
}
@Override
long cellDataProc (long tree_column, long cell, long tree_model, long iter, long data) {
if (cell == ignoreCell) return 0;
long path = GTK.gtk_tree_model_get_path (tree_model, iter);
int [] index = new int [1];
C.memmove (index, GTK.gtk_tree_path_get_indices (path), 4);
TableItem item = _getItem (index[0]);
GTK.gtk_tree_path_free (path);
if (item != null) OS.g_object_set_qdata (cell, Display.SWT_OBJECT_INDEX2, item.handle);
boolean isPixbuf = GTK.GTK_IS_CELL_RENDERER_PIXBUF (cell);
boolean isText = GTK.GTK_IS_CELL_RENDERER_TEXT (cell);
if (isText) {
GTK.gtk_cell_renderer_set_fixed_size (cell, -1, -1);
}
if (!(isPixbuf || isText)) return 0;
int modelIndex = -1;
boolean customDraw = false;
if (columnCount == 0) {
modelIndex = Table.FIRST_COLUMN;
customDraw = firstCustomDraw;
} else {
TableColumn column = (TableColumn) display.getWidget (tree_column);
if (column != null) {
modelIndex = column.modelIndex;
customDraw = column.customDraw;
}
}
if (modelIndex == -1) return 0;
boolean setData = false;
if ((style & SWT.VIRTUAL) != 0) {
if (!item.cached) {
lastIndexOf = index[0];
setData = checkData (item);
}
}
long [] ptr = new long [1];
if (setData) {
ptr [0] = 0;
if (isPixbuf) {
GTK.gtk_tree_model_get (tree_model, iter, modelIndex + CELL_PIXBUF, ptr, -1);
OS.g_object_set (cell, OS.gicon, ptr [0], 0);
if (ptr [0] != 0) OS.g_object_unref (ptr [0]);
} else {
GTK.gtk_tree_model_get (tree_model, iter, modelIndex + CELL_TEXT, ptr, -1);
if (ptr [0] != 0) {
OS.g_object_set (cell, OS.text, ptr [0], 0);
OS.g_free (ptr [0]);
}
}
}
if (customDraw) {
if (!ownerDraw) {
ptr [0] = 0;
GTK.gtk_tree_model_get (tree_model, iter, modelIndex + CELL_BACKGROUND, ptr, -1);
if (ptr [0] != 0) {
OS.g_object_set (cell, OS.cell_background_rgba, ptr[0], 0);
GDK.gdk_rgba_free (ptr [0]);
}
}
if (!isPixbuf) {
ptr [0] = 0;
GTK.gtk_tree_model_get (tree_model, iter, modelIndex + CELL_FOREGROUND, ptr, -1);
if (ptr [0] != 0) {
OS.g_object_set (cell, OS.foreground_rgba, ptr [0], 0);
GDK.gdk_rgba_free (ptr [0]);
}
ptr [0] = 0;
GTK.gtk_tree_model_get (tree_model, iter, modelIndex + CELL_FONT, ptr, -1);
if (ptr [0] != 0) {
OS.g_object_set (cell, OS.font_desc, ptr [0], 0);
OS.pango_font_description_free (ptr [0]);
}
}
}
if (setData) {
ignoreCell = cell;
setScrollWidth (tree_column, item);
ignoreCell = 0;
}
return 0;
}
boolean checkData (TableItem item) {
if (item.cached) return true;
if ((style & SWT.VIRTUAL) != 0) {
item.cached = true;
Event event = new Event ();
event.item = item;
event.index = indexOf (item);
int mask = OS.G_SIGNAL_MATCH_DATA | OS.G_SIGNAL_MATCH_ID;
int signal_id = OS.g_signal_lookup (OS.row_changed, GTK.gtk_tree_model_get_type ());
OS.g_signal_handlers_block_matched (modelHandle, mask, signal_id, 0, 0, 0, handle);
currentItem = item;
item.settingData = true;
sendEvent (SWT.SetData, event);
item.settingData = false;
//widget could be disposed at this point
currentItem = null;
if (isDisposed ()) return false;
OS.g_signal_handlers_unblock_matched (modelHandle, mask, signal_id, 0, 0, 0, handle);
if (item.isDisposed ()) return false;
}
return true;
}
@Override
protected void checkSubclass () {
if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS);
}
/**
* Adds the listener to the collection of listeners who will
* be notified when the user changes the receiver's selection, by sending
* it one of the messages defined in the SelectionListener
* interface.
*
* When widgetSelected is called, the item field of the event object is valid.
* If the receiver has the SWT.CHECK style and the check selection changes,
* the event object detail field contains the value SWT.CHECK.
* widgetDefaultSelected is typically called when an item is double-clicked.
* The item field of the event object is valid for default selection, but the detail field is not used.
*
*
* @param listener the listener which should be notified when the user changes the receiver's selection
*
* @exception IllegalArgumentException
*
ERROR_NULL_ARGUMENT - if the listener is null
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @see SelectionListener
* @see #removeSelectionListener
* @see SelectionEvent
*/
public void addSelectionListener (SelectionListener listener) {
addTypedListener(listener, SWT.Selection, SWT.DefaultSelection);
}
int calculateWidth (long column, long iter) {
GTK.gtk_tree_view_column_cell_set_cell_data(column, modelHandle, iter, false, false);
/*
* Bug in GTK. The width calculated by gtk_tree_view_column_cell_get_size()
* always grows in size regardless of the text or images in the table.
* The fix is to determine the column width from the cell renderers.
*/
//This workaround is causing the problem Bug 459834 in GTK3. So reverting the workaround for GTK3
int[] width = new int[1];
if (GTK.GTK4) {
GTK4.gtk_tree_view_column_cell_get_size(column, null, null, width, null);
} else {
GTK3.gtk_tree_view_column_cell_get_size(column, null, null, null, width, null);
}
long textRenderer = getTextRenderer(column);
int[] xpad = new int[1];
if (textRenderer != 0) GTK.gtk_cell_renderer_get_padding(textRenderer, xpad, null);
return width[0] + xpad[0] * 2;
}
/**
* Clears the item at the given zero-relative index in the receiver.
* The text, icon and other attributes of the item are set to the default
* value. If the table was created with the SWT.VIRTUAL style,
* these attributes are requested again as needed.
*
* @param index the index of the item to clear
*
* @exception IllegalArgumentException
*
ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @see SWT#VIRTUAL
* @see SWT#SetData
*
* @since 3.0
*/
public void clear (int index) {
checkWidget ();
if (!(0 <= index && index < itemCount)) {
error(SWT.ERROR_INVALID_RANGE);
}
TableItem item = items [index];
if (item != null) item.clear ();
}
/**
* Removes the items from the receiver which are between the given
* zero-relative start and end indices (inclusive). The text, icon
* and other attributes of the items are set to their default values.
* If the table was created with the SWT.VIRTUAL style,
* these attributes are requested again as needed.
*
* @param start the start index of the item to clear
* @param end the end index of the item to clear
*
* @exception IllegalArgumentException
*
ERROR_INVALID_RANGE - if either the start or end are not between 0 and the number of elements in the list minus 1 (inclusive)
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @see SWT#VIRTUAL
* @see SWT#SetData
*
* @since 3.0
*/
public void clear (int start, int end) {
checkWidget ();
if (start > end) return;
if (!(0 <= start && start <= end && end < itemCount)) {
error (SWT.ERROR_INVALID_RANGE);
}
if (start == 0 && end == itemCount - 1) {
clearAll();
} else {
for (int i=start; i<=end; i++) {
TableItem item = items [i];
if (item != null) item.clear();
}
}
}
/**
* Clears the items at the given zero-relative indices in the receiver.
* The text, icon and other attributes of the items are set to their default
* values. If the table was created with the SWT.VIRTUAL style,
* these attributes are requested again as needed.
*
* @param indices the array of indices of the items
*
* @exception IllegalArgumentException
*
ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)
*
ERROR_NULL_ARGUMENT - if the indices array is null
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @see SWT#VIRTUAL
* @see SWT#SetData
*
* @since 3.0
*/
public void clear (int [] indices) {
checkWidget ();
if (indices == null) error (SWT.ERROR_NULL_ARGUMENT);
if (indices.length == 0) return;
for (int i=0; iSWT.VIRTUAL style, these
* attributes are requested again as needed.
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @see SWT#VIRTUAL
* @see SWT#SetData
*
* @since 3.0
*/
public void clearAll () {
checkWidget ();
for (int i=0; i 0) {
TableColumn checkColumn = columns [0];
createRenderers (checkColumn.handle, checkColumn.modelIndex, false, checkColumn.style);
}
createRenderers (columnHandle, modelIndex, index == 0, column == null ? 0 : column.style);
if ((style & SWT.VIRTUAL) == 0 && columnCount == 0) {
GTK.gtk_tree_view_column_set_sizing (columnHandle, GTK.GTK_TREE_VIEW_COLUMN_GROW_ONLY);
} else {
GTK.gtk_tree_view_column_set_sizing (columnHandle, GTK.GTK_TREE_VIEW_COLUMN_FIXED);
}
GTK.gtk_tree_view_column_set_resizable (columnHandle, true);
GTK.gtk_tree_view_column_set_clickable (columnHandle, true);
GTK.gtk_tree_view_column_set_min_width (columnHandle, 0);
GTK.gtk_tree_view_insert_column (handle, columnHandle, index);
/*
* Bug in GTK3. The column header has the wrong CSS styling if it is hidden
* when inserting to the tree widget. The fix is to hide the column only
* after it is inserted.
*/
if (columnCount != 0) GTK.gtk_tree_view_column_set_visible (columnHandle, false);
if (column != null) {
column.handle = columnHandle;
column.modelIndex = modelIndex;
}
if (!searchEnabled ()) {
GTK.gtk_tree_view_set_search_column (handle, -1);
} else {
/* Set the search column whenever the model changes */
int firstColumn = columnCount == 0 ? FIRST_COLUMN : columns [0].modelIndex;
GTK.gtk_tree_view_set_search_column (handle, firstColumn + CELL_TEXT);
}
}
@Override
void createHandle (int index) {
state |= HANDLE;
fixedHandle = OS.g_object_new (display.gtk_fixed_get_type (), 0);
if (fixedHandle == 0) error (SWT.ERROR_NO_HANDLES);
if (GTK.GTK4) {
scrolledHandle = GTK4.gtk_scrolled_window_new();
} else {
GTK3.gtk_widget_set_has_window(fixedHandle, true);
scrolledHandle = GTK3.gtk_scrolled_window_new (0, 0);
}
if (scrolledHandle == 0) error (SWT.ERROR_NO_HANDLES);
long [] types = getColumnTypes (1);
modelHandle = GTK.gtk_list_store_newv (types.length, types);
if (modelHandle == 0) error (SWT.ERROR_NO_HANDLES);
handle = GTK.gtk_tree_view_new_with_model (modelHandle);
if (handle == 0) error (SWT.ERROR_NO_HANDLES);
if ((style & SWT.CHECK) != 0) {
checkRenderer = GTK.gtk_cell_renderer_toggle_new ();
if (checkRenderer == 0) error (SWT.ERROR_NO_HANDLES);
OS.g_object_ref (checkRenderer);
}
createColumn (null, 0);
if (GTK.GTK4) {
OS.swt_fixed_add(fixedHandle, scrolledHandle);
GTK4.gtk_scrolled_window_set_child(scrolledHandle, handle);
} else {
GTK3.gtk_container_add(fixedHandle, scrolledHandle);
GTK3.gtk_container_add(scrolledHandle, handle);
}
int mode = (style & SWT.MULTI) != 0 ? GTK.GTK_SELECTION_MULTIPLE : GTK.GTK_SELECTION_BROWSE;
long selectionHandle = GTK.gtk_tree_view_get_selection (handle);
GTK.gtk_tree_selection_set_mode (selectionHandle, mode);
GTK.gtk_tree_view_set_headers_visible (handle, false);
int hsp = (style & SWT.H_SCROLL) != 0 ? GTK.GTK_POLICY_AUTOMATIC : GTK.GTK_POLICY_NEVER;
int vsp = (style & SWT.V_SCROLL) != 0 ? GTK.GTK_POLICY_AUTOMATIC : GTK.GTK_POLICY_NEVER;
GTK.gtk_scrolled_window_set_policy (scrolledHandle, hsp, vsp);
if ((style & SWT.BORDER) != 0) {
if (GTK.GTK4) {
GTK4.gtk_scrolled_window_set_has_frame(scrolledHandle, true);
} else {
GTK3.gtk_scrolled_window_set_shadow_type (scrolledHandle, GTK.GTK_SHADOW_ETCHED_IN);
}
}
/*
* We enable fixed-height-mode for performance reasons (see bug 490203).
*/
if ((style & SWT.VIRTUAL) != 0) {
OS.g_object_set (handle, OS.fixed_height_mode, true, 0);
}
if (!searchEnabled ()) {
GTK.gtk_tree_view_set_search_column (handle, -1);
}
}
void createItem (TableColumn column, int index) {
if (!(0 <= index && index <= columnCount)) error (SWT.ERROR_INVALID_RANGE);
if (columnCount == 0) {
column.handle = GTK.gtk_tree_view_get_column (handle, 0);
GTK.gtk_tree_view_column_set_sizing (column.handle, GTK.GTK_TREE_VIEW_COLUMN_FIXED);
GTK.gtk_tree_view_column_set_visible (column.handle, false);
column.modelIndex = FIRST_COLUMN;
createRenderers (column.handle, column.modelIndex, true, column.style);
column.customDraw = firstCustomDraw;
firstCustomDraw = false;
} else {
createColumn (column, index);
}
long boxHandle = gtk_box_new(GTK.GTK_ORIENTATION_HORIZONTAL, false, 3);
if (boxHandle == 0) error(SWT.ERROR_NO_HANDLES);
GTK.gtk_tree_view_column_set_widget (column.handle, boxHandle);
long labelHandle = GTK.gtk_label_new_with_mnemonic(null);
if (labelHandle == 0) error(SWT.ERROR_NO_HANDLES);
long imageHandle = GTK.gtk_image_new();
if (imageHandle == 0) error(SWT.ERROR_NO_HANDLES);
if (GTK.GTK4) {
GTK4.gtk_box_append(boxHandle, imageHandle);
GTK4.gtk_box_append(boxHandle, labelHandle);
GTK.gtk_widget_hide(imageHandle);
} else {
GTK3.gtk_container_add (boxHandle, imageHandle);
GTK3.gtk_container_add (boxHandle, labelHandle);
GTK.gtk_widget_show (boxHandle);
GTK.gtk_widget_show (labelHandle);
}
column.labelHandle = labelHandle;
column.imageHandle = imageHandle;
column.buttonHandle = GTK.gtk_tree_view_column_get_button(column.handle);
GTK.gtk_widget_set_focus_on_click(column.buttonHandle, false);
if (columnCount == columns.length) {
TableColumn [] newColumns = new TableColumn [columns.length + 4];
System.arraycopy (columns, 0, newColumns, 0, columns.length);
columns = newColumns;
}
System.arraycopy (columns, index, columns, index + 1, columnCount++ - index);
columns [index] = column;
if ((state & FONT) != 0) {
long fontDesc = getFontDescription ();
column.setFontDescription (fontDesc);
OS.pango_font_description_free (fontDesc);
}
if (columnCount >= 1) {
for (int i=0; i
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*/
public void deselect (int index) {
checkWidget();
if (index < 0 || index >= itemCount) return;
boolean fixColumn = showFirstColumn ();
long selection = GTK.gtk_tree_view_get_selection (handle);
OS.g_signal_handlers_block_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED);
GTK.gtk_tree_selection_unselect_iter (selection, _getItem (index).handle);
OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED);
if (fixColumn) hideFirstColumn ();
}
/**
* Deselects the items at the given zero-relative indices in the receiver.
* If the item at the given zero-relative index in the receiver
* is selected, it is deselected. If the item at the index
* was not selected, it remains deselected. The range of the
* indices is inclusive. Indices that are out of range are ignored.
*
* @param start the start index of the items to deselect
* @param end the end index of the items to deselect
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*/
public void deselect (int start, int end) {
checkWidget();
boolean fixColumn = showFirstColumn ();
long selection = GTK.gtk_tree_view_get_selection (handle);
OS.g_signal_handlers_block_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED);
for (int index=start; index<=end; index++) {
if (index < 0 || index >= itemCount) continue;
GTK.gtk_tree_selection_unselect_iter (selection, _getItem (index).handle);
}
OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED);
if (fixColumn) hideFirstColumn ();
}
/**
* Deselects the items at the given zero-relative indices in the receiver.
* If the item at the given zero-relative index in the receiver
* is selected, it is deselected. If the item at the index
* was not selected, it remains deselected. Indices that are out
* of range and duplicate indices are ignored.
*
* @param indices the array of indices for the items to deselect
*
* @exception IllegalArgumentException
*
ERROR_NULL_ARGUMENT - if the set of indices is null
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*/
public void deselect (int [] indices) {
checkWidget();
if (indices == null) error (SWT.ERROR_NULL_ARGUMENT);
boolean fixColumn = showFirstColumn ();
long selection = GTK.gtk_tree_view_get_selection (handle);
OS.g_signal_handlers_block_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED);
for (int i=0; i= itemCount) continue;
GTK.gtk_tree_selection_unselect_iter (selection, _getItem (index).handle);
}
OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED);
if (fixColumn) hideFirstColumn ();
}
/**
* Deselects all selected items in the receiver.
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*/
public void deselectAll () {
checkWidget();
boolean fixColumn = showFirstColumn ();
long selection = GTK.gtk_tree_view_get_selection (handle);
OS.g_signal_handlers_block_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED);
GTK.gtk_tree_selection_unselect_all (selection);
OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED);
if (fixColumn) hideFirstColumn ();
}
void destroyItem (TableColumn column) {
int index = 0;
while (index < columnCount) {
if (columns [index] == column) break;
index++;
}
if (index == columnCount) return;
long columnHandle = column.handle;
if (columnCount == 1) {
firstCustomDraw = column.customDraw;
}
System.arraycopy (columns, index + 1, columns, index, --columnCount - index);
columns [columnCount] = null;
GTK.gtk_tree_view_remove_column (handle, columnHandle);
if (columnCount == 0) {
long oldModel = modelHandle;
long [] types = getColumnTypes (1);
long newModel = GTK.gtk_list_store_newv (types.length, types);
if (newModel == 0) error (SWT.ERROR_NO_HANDLES);
/*
* In VIRTUAL Table, GTK may react to `gtk_list_store_remove()` by
* calling `cellDataProc()`, and SWT will be confused because
* `items[]` no longer match the GTK model, which has some rows
* deleted by `gtk_list_store_remove()`. The fix is to disconnect
* model during rebuilding. The new model will replace the old one
* anyway, so it doesn't matter if old is removed a bit earlier.
*/
GTK.gtk_tree_view_set_model (handle, 0);
copyModel (oldModel, column.modelIndex, newModel, FIRST_COLUMN, FIRST_COLUMN + CELL_TYPES);
GTK.gtk_tree_view_set_model (handle, newModel);
setModel (newModel);
createColumn (null, 0);
} else {
for (int i=0; iTableColumns were created by the programmer,
* this method will throw ERROR_INVALID_RANGE despite
* the fact that a single column of data may be visible in the table.
* This occurs when the programmer uses the table like a list, adding
* items but never creating a column.
*
* @param index the index of the column to return
* @return the column at the given index
*
* @exception IllegalArgumentException
*
ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @see Table#getColumnOrder()
* @see Table#setColumnOrder(int[])
* @see TableColumn#getMoveable()
* @see TableColumn#setMoveable(boolean)
* @see SWT#Move
*/
public TableColumn getColumn (int index) {
checkWidget();
if (!(0 <= index && index < columnCount)) error (SWT.ERROR_INVALID_RANGE);
return columns [index];
}
/**
* Returns the number of columns contained in the receiver.
* If no TableColumns were created by the programmer,
* this value is zero, despite the fact that visually, one column
* of items may be visible. This occurs when the programmer uses
* the table like a list, adding items but never creating a column.
*
* @return the number of columns
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*/
public int getColumnCount () {
checkWidget();
return columnCount;
}
long [] getColumnTypes (int columnCount) {
long [] types = new long [FIRST_COLUMN + (columnCount * CELL_TYPES)];
// per row data
types [CHECKED_COLUMN] = OS.G_TYPE_BOOLEAN ();
types [GRAYED_COLUMN] = OS.G_TYPE_BOOLEAN ();
types [FOREGROUND_COLUMN] = GDK.GDK_TYPE_RGBA();
types [BACKGROUND_COLUMN] = GDK.GDK_TYPE_RGBA();
types [FONT_COLUMN] = OS.PANGO_TYPE_FONT_DESCRIPTION ();
// per cell data
for (int i=FIRST_COLUMN; i
* Specifically, the indices of the returned array represent
* the current visual order of the items, and the contents
* of the array represent the creation order of the items.
*
* Note: This is not the actual structure used by the receiver
* to maintain its list of items, so modifying the array will
* not affect the receiver.
*
*
* @return the current visual order of the receiver's items
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @see Table#setColumnOrder(int[])
* @see TableColumn#getMoveable()
* @see TableColumn#setMoveable(boolean)
* @see SWT#Move
*
* @since 3.1
*/
public int [] getColumnOrder () {
checkWidget ();
if (columnCount == 0) return new int [0];
long list = GTK.gtk_tree_view_get_columns (handle);
if (list == 0) return new int [0];
int i = 0, count = OS.g_list_length (list);
int [] order = new int [count];
long temp = list;
while (temp != 0) {
long column = OS.g_list_data (temp);
if (column != 0) {
for (int j=0; jTableColumns which are the
* columns in the receiver. Columns are returned in the order
* that they were created. If no TableColumns were
* created by the programmer, the array is empty, despite the fact
* that visually, one column of items may be visible. This occurs
* when the programmer uses the table like a list, adding items but
* never creating a column.
*
* Note: This is not the actual structure used by the receiver
* to maintain its list of items, so modifying the array will
* not affect the receiver.
*
*
* @return the items in the receiver
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @see Table#getColumnOrder()
* @see Table#setColumnOrder(int[])
* @see TableColumn#getMoveable()
* @see TableColumn#setMoveable(boolean)
* @see SWT#Move
*/
public TableColumn [] getColumns () {
checkWidget();
TableColumn [] result = new TableColumn [columnCount];
System.arraycopy (columns, 0, result, 0, columnCount);
return result;
}
@Override
GdkRGBA getContextBackgroundGdkRGBA () {
if (background != null) {
return background;
} else {
// For Tables and Trees, the default background is
// COLOR_LIST_BACKGROUND instead of COLOR_WIDGET_BACKGROUND.
return defaultBackground();
}
}
@Override
GdkRGBA getContextColorGdkRGBA () {
if (foreground != null) {
return foreground;
} else {
return display.COLOR_LIST_FOREGROUND_RGBA;
}
}
TableItem getFocusItem () {
long [] path = new long [1];
GTK.gtk_tree_view_get_cursor (handle, path, null);
if (path [0] == 0) return null;
TableItem item = null;
long indices = GTK.gtk_tree_path_get_indices (path [0]);
if (indices != 0) {
int [] index = new int []{-1};
C.memmove (index, indices, 4);
item = _getItem (index [0]);
}
GTK.gtk_tree_path_free (path [0]);
return item;
}
/**
* Returns the width in points of a grid line.
*
* @return the width of a grid line in points
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*/
public int getGridLineWidth () {
checkWidget ();
return DPIUtil.autoScaleDown (getGridLineWidthInPixels ());
}
int getGridLineWidthInPixels () {
checkWidget();
return 0;
}
/**
* Returns the header background color.
*
* @return the receiver's header background color.
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
* @since 3.106
*/
public Color getHeaderBackground () {
checkWidget ();
return headerBackground != null ? headerBackground : display.getSystemColor(SWT.COLOR_LIST_BACKGROUND);
}
/**
* Returns the header foreground color.
*
* @return the receiver's header foreground color.
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
* @since 3.106
*/
public Color getHeaderForeground () {
checkWidget ();
return headerForeground != null ? headerForeground : display.getSystemColor(SWT.COLOR_LIST_FOREGROUND);
}
/**
* Returns the height of the receiver's header
*
* @return the height of the header or zero if the header is not visible
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @since 2.0
*/
public int getHeaderHeight () {
checkWidget ();
return DPIUtil.autoScaleDown (getHeaderHeightInPixels ());
}
int getHeaderHeightInPixels () {
checkWidget();
if (!GTK.gtk_tree_view_get_headers_visible(handle)) return 0;
int height = 0;
if (columnCount > 0) {
GtkRequisition requisition = new GtkRequisition ();
for (int i = 0; i < columnCount; i++) {
long buttonHandle = columns[i].buttonHandle;
if (buttonHandle != 0) {
if (!GTK.gtk_widget_get_visible(buttonHandle)) {
GTK.gtk_widget_show(buttonHandle);
gtk_widget_get_preferred_size(buttonHandle, requisition);
GTK.gtk_widget_hide(buttonHandle);
} else {
gtk_widget_get_preferred_size(buttonHandle, requisition);
}
height = Math.max(height, requisition.height);
}
}
} else {
if (GTK.GTK4) {
int[] headerHeight = new int[1];
GTK.gtk_tree_view_convert_bin_window_to_widget_coords(handle, 0, 0, null, headerHeight);
height = headerHeight[0];
} else {
GTK.gtk_widget_realize (handle);
long fixedWindow = gtk_widget_get_window (fixedHandle);
long binWindow = GTK3.gtk_tree_view_get_bin_window (handle);
int [] binY = new int [1];
GDK.gdk_window_get_origin (binWindow, null, binY);
int [] fixedY = new int [1];
GDK.gdk_window_get_origin (fixedWindow, null, fixedY);
height = binY [0] - fixedY [0];
}
}
return height;
}
/**
* Returns true if the receiver's header is visible,
* and false otherwise.
*
* If one of the receiver's ancestors is not visible or some
* other condition makes the receiver not visible, this method
* may still indicate that it is considered visible even though
* it may not actually be showing.
*
*
* @return the receiver's header's visibility state
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*/
public boolean getHeaderVisible () {
checkWidget();
return GTK.gtk_tree_view_get_headers_visible (handle);
}
/**
* Returns the item at the given, zero-relative index in the
* receiver. Throws an exception if the index is out of range.
*
* @param index the index of the item to return
* @return the item at the given index
*
* @exception IllegalArgumentException
*
ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*/
public TableItem getItem (int index) {
checkWidget();
if (!(0 <= index && index < itemCount)) error (SWT.ERROR_INVALID_RANGE);
return _getItem (index);
}
/**
* Returns the item at the given point in the receiver
* or null if no such item exists. The point is in the
* coordinate system of the receiver.
*
* The item that is returned represents an item that could be selected by the user.
* For example, if selection only occurs in items in the first column, then null is
* returned if the point is outside of the item.
* Note that the SWT.FULL_SELECTION style hint, which specifies the selection policy,
* determines the extent of the selection.
*
*
* @param point the point used to locate the item
* @return the item at the given point, or null if the point is not in a selectable item
*
* @exception IllegalArgumentException
*
ERROR_NULL_ARGUMENT - if the point is null
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*/
public TableItem getItem (Point point) {
checkWidget();
return getItemInPixels(DPIUtil.autoScaleUp(point));
}
TableItem getItemInPixels (Point point) {
checkWidget();
if (point == null) error (SWT.ERROR_NULL_ARGUMENT);
long [] path = new long [1];
GTK.gtk_widget_realize (handle);
int y = point.y;
/*
* On GTK4 the header is included in the entire widget's surface, so we must subtract
* its size from the y-coordinate. This does not apply on GTK3 as the header and
* "main-widget" have separate GdkWindows.
*/
if (getHeaderVisible() && GTK.GTK4) {
y -= getHeaderHeight();
}
if (!GTK.gtk_tree_view_get_path_at_pos (handle, point.x, y, path, null, null, null)) return null;
if (path [0] == 0) return null;
long indices = GTK.gtk_tree_path_get_indices (path [0]);
TableItem item = null;
if (indices != 0) {
int [] index = new int [1];
C.memmove (index, indices, 4);
item = _getItem (index [0]);
}
GTK.gtk_tree_path_free (path [0]);
return item;
}
/**
* Returns the number of items contained in the receiver.
*
* @return the number of items
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*/
public int getItemCount () {
checkWidget ();
return itemCount;
}
/**
* Returns the height of the area which would be used to
* display one of the items in the receiver.
*
* @return the height of one item
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*/
public int getItemHeight () {
checkWidget ();
return DPIUtil.autoScaleDown (getItemHeightInPixels ());
}
int getItemHeightInPixels () {
checkWidget();
int height = 0;
if (itemCount == 0) {
long column = GTK.gtk_tree_view_get_column(handle, 0);
int[] h = new int[1];
ignoreSize = true;
if (GTK.GTK4) {
GTK4.gtk_tree_view_column_cell_get_size(column, null, null, null, h);
} else {
GTK3.gtk_tree_view_column_cell_get_size(column, null, null, null, null, h);
}
height = h[0];
long textRenderer = getTextRenderer(column);
if (textRenderer != 0) GTK.gtk_cell_renderer_get_preferred_height_for_width(textRenderer, handle, 0, h, null);
height += h[0];
ignoreSize = false;
} else {
long iter = OS.g_malloc(GTK.GtkTreeIter_sizeof());
GTK.gtk_tree_model_get_iter_first(modelHandle, iter);
int columnCount = Math.max(1, this.columnCount);
for (int i = 0; i < columnCount; i++) {
long column = GTK.gtk_tree_view_get_column(handle, i);
GTK.gtk_tree_view_column_cell_set_cell_data(column, modelHandle, iter, false, false);
int[] h = new int[1];
if (GTK.GTK4) {
GTK4.gtk_tree_view_column_cell_get_size(column, null, null, null, h);
} else {
GTK3.gtk_tree_view_column_cell_get_size (column, null, null, null, null, h);
}
long textRenderer = getTextRenderer(column);
int[] ypad = new int[1];
if (textRenderer != 0) GTK.gtk_cell_renderer_get_padding(textRenderer, null, ypad);
height = Math.max(height, h[0] + ypad[0]);
}
OS.g_free (iter);
}
return height;
}
/**
* Returns a (possibly empty) array of TableItems which
* are the items in the receiver.
*
* Note: This is not the actual structure used by the receiver
* to maintain its list of items, so modifying the array will
* not affect the receiver.
*
*
* @return the items in the receiver
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*/
public TableItem [] getItems () {
checkWidget();
TableItem [] result = new TableItem [itemCount];
if ((style & SWT.VIRTUAL) != 0) {
for (int i=0; itrue if the receiver's lines are visible,
* and false otherwise. Note that some platforms draw
* grid lines while others may draw alternating row colors.
*
* If one of the receiver's ancestors is not visible or some
* other condition makes the receiver not visible, this method
* may still indicate that it is considered visible even though
* it may not actually be showing.
*
*
* @return the visibility state of the lines
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*/
public boolean getLinesVisible() {
checkWidget();
return GTK.gtk_tree_view_get_grid_lines(handle) > GTK.GTK_TREE_VIEW_GRID_LINES_NONE;
}
long getPixbufRenderer (long column) {
long list = GTK.gtk_cell_layout_get_cells(column);
if (list == 0) return 0;
long originalList = list;
long pixbufRenderer = 0;
while (list != 0) {
long renderer = OS.g_list_data (list);
if (GTK.GTK_IS_CELL_RENDERER_PIXBUF (renderer)) {
pixbufRenderer = renderer;
break;
}
list = OS.g_list_next (list);
}
OS.g_list_free (originalList);
return pixbufRenderer;
}
/**
* Returns an array of TableItems that are currently
* selected in the receiver. The order of the items is unspecified.
* An empty array indicates that no items are selected.
*
* Note: This is not the actual structure used by the receiver
* to maintain its selection, so modifying the array will
* not affect the receiver.
*
* @return an array representing the selection
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*/
public TableItem [] getSelection () {
checkWidget();
long selection = GTK.gtk_tree_view_get_selection (handle);
long list = GTK.gtk_tree_selection_get_selected_rows (selection, null);
long originalList = list;
if (list != 0) {
int count = OS.g_list_length (list);
int [] treeSelection = new int [count];
int length = 0;
for (int i=0; i
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*/
public int getSelectionCount () {
checkWidget();
long selection = GTK.gtk_tree_view_get_selection (handle);
return GTK.gtk_tree_selection_count_selected_rows (selection);
}
/**
* Returns the zero-relative index of the item which is currently
* selected in the receiver, or -1 if no item is selected.
*
* @return the index of the selected item
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*/
public int getSelectionIndex () {
checkWidget();
long selection = GTK.gtk_tree_view_get_selection (handle);
long list = GTK.gtk_tree_selection_get_selected_rows (selection, null);
long originalList = list;
if (list != 0) {
int [] index = new int [1];
boolean foundIndex = false;
while (list != 0) {
long data = OS.g_list_data (list);
if (!foundIndex) {
long indices = GTK.gtk_tree_path_get_indices (data);
if (indices != 0) {
C.memmove (index, indices, 4);
foundIndex = true;
}
}
list = OS.g_list_next (list);
GTK.gtk_tree_path_free (data);
}
OS.g_list_free (originalList);
return index [0];
}
return -1;
}
/**
* Returns the zero-relative indices of the items which are currently
* selected in the receiver. The order of the indices is unspecified.
* The array is empty if no items are selected.
*
* Note: This is not the actual structure used by the receiver
* to maintain its selection, so modifying the array will
* not affect the receiver.
*
* @return the array of indices of the selected items
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*/
public int [] getSelectionIndices () {
checkWidget();
long selection = GTK.gtk_tree_view_get_selection (handle);
long list = GTK.gtk_tree_selection_get_selected_rows (selection, null);
long originalList = list;
if (list != 0) {
int count = OS.g_list_length (list);
int [] treeSelection = new int [count];
int length = 0;
for (int i=0; i
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @see #setSortColumn(TableColumn)
*
* @since 3.2
*/
public TableColumn getSortColumn () {
checkWidget ();
return sortColumn;
}
/**
* Returns the direction of the sort indicator for the receiver.
* The value will be one of UP, DOWN
* or NONE.
*
* @return the sort direction
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @see #setSortDirection(int)
*
* @since 3.2
*/
public int getSortDirection () {
checkWidget ();
return sortDirection;
}
long getTextRenderer (long column) {
long list = GTK.gtk_cell_layout_get_cells(column);
if (list == 0) return 0;
long originalList = list;
long textRenderer = 0;
while (list != 0) {
long renderer = OS.g_list_data (list);
if (GTK.GTK_IS_CELL_RENDERER_TEXT (renderer)) {
textRenderer = renderer;
break;
}
list = OS.g_list_next (list);
}
OS.g_list_free (originalList);
return textRenderer;
}
/**
* Returns the zero-relative index of the item which is currently
* at the top of the receiver. This index can change when items are
* scrolled or new items are added or removed.
*
* @return the index of the top item
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*/
public int getTopIndex () {
checkWidget();
/*
* Feature in GTK: fetch the topIndex using the topItem global variable
* if setTopIndex() has been called and the widget has not been scrolled
* using the UI. Otherwise, fetch topIndex using GtkTreeView API.
*/
long vAdjustment;
vAdjustment = GTK.gtk_scrollable_get_vadjustment(handle);
currentAdjustment = GTK.gtk_adjustment_get_value(vAdjustment);
if (cachedAdjustment == currentAdjustment){
return topIndex;
} else {
long [] path = new long [1];
GTK.gtk_widget_realize (handle);
if (!GTK.gtk_tree_view_get_path_at_pos (handle, 1, 1, path, null, null, null)) return 0;
if (path [0] == 0) return 0;
long indices = GTK.gtk_tree_path_get_indices (path[0]);
int[] index = new int [1];
if (indices != 0) C.memmove (index, indices, 4);
GTK.gtk_tree_path_free (path [0]);
return index [0];
}
}
@Override
long gtk_button_press_event (long widget, long event) {
double [] eventX = new double [1];
double [] eventY = new double [1];
GDK.gdk_event_get_coords(event, eventX, eventY);
int eventType = GDK.gdk_event_get_event_type(event);
int [] eventButton = new int [1];
int [] eventState = new int [1];
GDK.gdk_event_get_button(event, eventButton);
GDK.gdk_event_get_state(event, eventState);
double [] eventRX = new double [1];
double [] eventRY = new double [1];
GDK.gdk_event_get_root_coords(event, eventRX, eventRY);
long eventGdkResource = gdk_event_get_surface_or_window(event);
if (eventGdkResource != GTK3.gtk_tree_view_get_bin_window (handle)) return 0;
long result = super.gtk_button_press_event (widget, event);
if (result != 0) return result;
/*
* Feature in GTK. In multi-select tree view there is a problem with using DnD operations while also selecting multiple items.
* When doing a DnD, GTK de-selects all other items except for the widget being dragged from. By disabling the selection function
* in GTK in the case that additional items aren't being added (CTRL_MASK or SHIFT_MASK) and the item being dragged is already
* selected, we can give the DnD handling to MOTION-NOTIFY. Seee Bug 503431
*/
if ((state & DRAG_DETECT) != 0 && hooks (SWT.DragDetect) &&
OS.isWayland() && eventType == GDK.GDK_BUTTON_PRESS) {
// check to see if there is another event coming in that is not a double/triple click, this is to prevent Bug 514531
long nextEvent = GDK.gdk_event_peek();
if (nextEvent == 0) {
long [] path = new long [1];
long selection = GTK.gtk_tree_view_get_selection (handle);
if (GTK.gtk_tree_view_get_path_at_pos (handle, (int)eventX[0], (int)eventY[0], path, null, null, null) &&
path[0] != 0) {
// selection count is used in the case of clicking an already selected item while holding Control
selectionCountOnPress = getSelectionCount();
if (GTK.gtk_tree_selection_path_is_selected (selection, path[0])) {
if (((eventState[0] & (GDK.GDK_CONTROL_MASK|GDK.GDK_SHIFT_MASK)) == 0) ||
((eventState[0] & GDK.GDK_CONTROL_MASK) != 0)) {
/**
* Disable selection on a mouse click if there are multiple items already selected. Also,
* if control is currently being held down, we will designate the selection logic over to release
* instead by first disabling the selection.
* E.g to reproduce: Open DNDExample, select "Tree", select multiple items, try dragging.
* without line below, only one item is selected for drag.
*/
long gtk_false_funcPtr = GTK.GET_FUNCTION_POINTER_gtk_false();
GTK.gtk_tree_selection_set_select_function(selection, gtk_false_funcPtr, 0, 0);
}
}
}
} else {
gdk_event_free (nextEvent);
}
}
/*
* Feature in GTK. In a multi-select table view, when multiple items are already
* selected, the selection state of the item is toggled and the previous selection
* is cleared. This is not the desired behaviour when bringing up a popup menu.
* Also, when an item is reselected with the right button, the tree view issues
* an unwanted selection event. The workaround is to detect that case and not
* run the default handler when the item is already part of the current selection.
*/
int button = eventButton[0];
if (button == 3 && eventType == GDK.GDK_BUTTON_PRESS) {
long [] path = new long [1];
if (GTK.gtk_tree_view_get_path_at_pos (handle, (int)eventX[0], (int)eventY[0], path, null, null, null)) {
if (path [0] != 0) {
long selection = GTK.gtk_tree_view_get_selection (handle);
if (GTK.gtk_tree_selection_path_is_selected (selection, path [0])) result = 1;
GTK.gtk_tree_path_free (path [0]);
}
}
}
/*
* Feature in GTK. When the user clicks in a single selection GtkTreeView
* and there are no selected items, the first item is selected automatically
* before the click is processed, causing two selection events. The is fix
* is the set the cursor item to be same as the clicked item to stop the
* widget from automatically selecting the first item.
*/
if ((style & SWT.SINGLE) != 0 && getSelectionCount () == 0) {
long [] path = new long [1];
if (GTK.gtk_tree_view_get_path_at_pos (handle, (int)eventX[0], (int)eventY[0], path, null, null, null)) {
if (path [0] != 0) {
long selection = GTK.gtk_tree_view_get_selection (handle);
OS.g_signal_handlers_block_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED);
GTK.gtk_tree_view_set_cursor (handle, path [0], 0, false);
OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED);
GTK.gtk_tree_path_free (path [0]);
}
}
}
/*
* Bug 312568: If mouse double-click pressed, manually send a DefaultSelection.
* Bug 518414: Added rowActivated guard flag to only send a DefaultSelection when the
* double-click triggers a 'row-activated' signal. Note that this relies on the fact
* that 'row-activated' signal comes before double-click event. This prevents
* opening of the current highlighted item when double clicking on any expander arrow.
*/
if (eventType == GDK.GDK_2BUTTON_PRESS && rowActivated) {
sendTreeDefaultSelection ();
rowActivated = false;
}
return result;
}
@Override
void gtk_gesture_press_event (long gesture, int n_press, double x, double y, long event) {
if (n_press == 1) return;
super.gtk_gesture_press_event(gesture, n_press, x, y, event);
// TODO: GTK4 replicate gtk_button_press_event functions
if (n_press == 2 && rowActivated) {
sendTreeDefaultSelection ();
rowActivated = false;
}
}
@Override
long gtk_row_activated (long tree, long path, long column) {
rowActivated = true;
return 0;
}
@Override
long gtk_key_press_event (long widget, long event) {
int [] key = new int[1];
if (GTK.GTK4) {
key[0] = GDK.gdk_key_event_get_keyval(event);
} else {
GDK.gdk_event_get_keyval(event, key);
}
switch (key[0]) {
case GDK.GDK_Return:
// Send DefaultSelectionEvent when:
// when : Enter, Shift+Enter, Ctrl+Enter are pressed.
// Not when: Alt+Enter, (Meta|Super|Hyper)+Enter, reason is stateMask is not provided on Gtk.
// Note: alt+Enter creates a selection on GTK, but we filter it out to be a bit more consitent Win32 (521387)
int keymask = gdk_event_get_state (event);
if ((keymask & (GDK.GDK_SUPER_MASK | GDK.GDK_META_MASK | GDK.GDK_HYPER_MASK | GDK.GDK_MOD1_MASK)) == 0) {
sendTreeDefaultSelection ();
}
break;
case GDK.GDK_space:
if ((style & SWT.CHECK) != 0) {
TableItem[] selected = getSelection();
for (int i = 0; i < selected.length; i++) {
toggleItemAndSendEvent(selected[i]);
}
// Maintain current selection by stopping additional handling to GDK_space event
return 1;
}
break;
}
return super.gtk_key_press_event (widget, event);
}
private void toggleItemAndSendEvent(TableItem item) {
item.setChecked (!item.getChecked ());
Event event = new Event ();
event.detail = SWT.CHECK;
event.item = item;
sendSelectionEvent (SWT.Selection, event, false);
}
/**
* Used to emulate DefaultSelection event. See Bug 312568.
* Feature in GTK. 'row-activation' event comes before DoubleClick event.
* This is causing the editor not to get focus after double-click.
* The solution is to manually send the DefaultSelection event after a double-click,
* and to emulate it for Space/Return.
*/
void sendTreeDefaultSelection() {
//Note, similar DefaultSelectionHandling in SWT List/Table/Tree
TableItem tableItem = getFocusItem ();
if (tableItem == null)
return;
Event event = new Event ();
event.item = tableItem;
sendSelectionEvent (SWT.DefaultSelection, event, false);
}
@Override
long gtk_button_release_event (long widget, long event) {
double [] eventX = new double [1];
double [] eventY = new double [1];
if (GTK.GTK4) {
GDK.gdk_event_get_position(event, eventX, eventY);
} else {
GDK.gdk_event_get_coords(event, eventX, eventY);
}
int [] eventButton = new int [1];
int [] eventState = new int [1];
if (GTK.GTK4) {
eventButton[0] = GDK.gdk_button_event_get_button(event);
eventState[0] = GDK.gdk_event_get_modifier_state(event);
} else {
GDK.gdk_event_get_button(event, eventButton);
GDK.gdk_event_get_state(event, eventState);
}
double [] eventRX = new double [1];
double [] eventRY = new double [1];
GDK.gdk_event_get_root_coords(event, eventRX, eventRY);
long eventGdkResource = gdk_event_get_surface_or_window(event);
if (GTK.GTK4) {
if (eventGdkResource != gtk_widget_get_surface (handle)) return 0;
} else {
if (eventGdkResource != GTK3.gtk_tree_view_get_bin_window (handle)) return 0;
}
// Check region since super.gtk_button_release_event() isn't called
lastInput.x = (int) eventX[0];
lastInput.y = (int) eventY[0];
if (containedInRegion(lastInput.x, lastInput.y)) return 0;
/*
* Feature in GTK. In multi-select tree view there is a problem with using DnD operations while also selecting multiple items.
* When doing a DnD, GTK de-selects all other items except for the widget being dragged from. By disabling the selection function
* in GTK in the case that additional items aren't being added (CTRL_MASK or SHIFT_MASK) and the item being dragged is already
* selected, we can give the DnD handling to MOTION-NOTIFY. On release, we can then re-enable the selection method
* and also select the item in the tree by moving the selection logic to release instead. See Bug 503431.
*/
if ((state & DRAG_DETECT) != 0 && hooks (SWT.DragDetect) && OS.isWayland()) {
long [] path = new long [1];
long selection = GTK.gtk_tree_view_get_selection (handle);
// free up the selection function on release.
GTK.gtk_tree_selection_set_select_function(selection,0,0,0);
if (GTK.gtk_tree_view_get_path_at_pos (handle, (int)eventX[0], (int)eventY[0], path, null, null, null) &&
path[0] != 0 && GTK.gtk_tree_selection_path_is_selected (selection, path[0])) {
selectionCountOnRelease = getSelectionCount();
if ((eventState[0] & (GDK.GDK_CONTROL_MASK|GDK.GDK_SHIFT_MASK)) == 0) {
GTK.gtk_tree_view_set_cursor(handle, path[0], 0, false);
}
// Check to see if there has been a new tree item selected when holding Control in Path.
// If not, deselect the item.
if ((eventState[0] & GDK.GDK_CONTROL_MASK) != 0 && selectionCountOnRelease == selectionCountOnPress) {
GTK.gtk_tree_selection_unselect_path (selection,path[0]);
}
}
}
return super.gtk_button_release_event (widget, event);
}
@Override
long gtk_changed (long widget) {
TableItem item = getFocusItem ();
if (item != null) {
Event event = new Event ();
event.item = item;
sendSelectionEvent (SWT.Selection, event, false);
}
return 0;
}
void drawInheritedBackground (long cairo) {
if ((state & PARENT_BACKGROUND) != 0 || backgroundImage != null) {
Control control = findBackgroundControl ();
if (control != null) {
int [] width = new int [1], height = new int [1];
long gdkResource;
if (GTK.GTK4) {
gdkResource = gtk_widget_get_surface(handle);
gdk_surface_get_size (gdkResource, width, height);
} else {
gdkResource = GTK3.gtk_tree_view_get_bin_window (handle);
gdk_window_get_size (gdkResource, width, height);
}
int bottom = 0;
if (itemCount != 0) {
long iter = OS.g_malloc (GTK.GtkTreeIter_sizeof ());
GTK.gtk_tree_model_iter_nth_child (modelHandle, iter, 0, itemCount - 1);
long path = GTK.gtk_tree_model_get_path (modelHandle, iter);
GdkRectangle rect = new GdkRectangle ();
GTK.gtk_tree_view_get_cell_area (handle, path, 0, rect);
bottom = rect.y + rect.height;
GTK.gtk_tree_path_free (path);
OS.g_free (iter);
}
if (height [0] > bottom) {
drawBackground (control, gdkResource, cairo, 0, bottom, width [0], height [0] - bottom);
}
}
}
}
@Override
long gtk_draw (long widget, long cairo) {
boolean haveBoundsChanged = boundsChangedSinceLastDraw;
boundsChangedSinceLastDraw = false;
if ((state & OBSCURED) != 0) return 0;
/*
* Bug 537960: JFace table viewers miss a repaint when resized by a SashForm
*
* If a listener of type SWT.MeasureItem, SWT.PaintItem and or SWT.EraseItem is registered,
* GTK will sometimes not invalidate the tree widget pixel cache when the tree is resized.
* As a result, a few of the bottom rows of JFace table viewers that use styled text are often not drawn on resize.
* If the table was resized since the last paint, we ignore this draw request
* and queue another draw request so that the pixel cache is properly invalidated.
*/
if (ownerDraw && haveBoundsChanged) {
GTK.gtk_widget_queue_draw(handle);
return 0;
}
drawInheritedBackground (cairo);
return super.gtk_draw (widget, cairo);
}
@Override
long gtk_motion_notify_event (long widget, long event) {
if (GTK.GTK4) {
long surface = GDK.gdk_event_get_surface(event);
if (surface != gtk_widget_get_surface(handle)) return 0;
} else {
long window = GDK.GDK_EVENT_WINDOW (event);
if (window != GTK3.gtk_tree_view_get_bin_window (handle)) return 0;
}
return super.gtk_motion_notify_event (widget, event);
}
@Override
long gtk_scroll_event (long widget, long eventPtr) {
long result = super.gtk_scroll_event(widget, eventPtr);
if (!wasScrolled) wasScrolled = true;
return result;
}
@Override
long gtk_start_interactive_search(long widget) {
if (!searchEnabled()) {
OS.g_signal_stop_emission_by_name(widget, OS.start_interactive_search);
return 1;
}
return 0;
}
@Override
long gtk_toggled (long renderer, long pathStr) {
long path = GTK.gtk_tree_path_new_from_string (pathStr);
if (path == 0) return 0;
long indices = GTK.gtk_tree_path_get_indices (path);
if (indices != 0) {
int [] index = new int [1];
C.memmove (index, indices, 4);
TableItem item = _getItem (index [0]);
toggleItemAndSendEvent(item);
}
GTK.gtk_tree_path_free (path);
return 0;
}
@Override
void gtk_widget_get_preferred_size (long widget, GtkRequisition requisition) {
/*
* Bug in GTK. For some reason, gtk_widget_size_request() fails
* to include the height of the tree view items when there are
* no columns visible. The fix is to temporarily make one column
* visible.
*/
if (columnCount == 0) {
super.gtk_widget_get_preferred_size (widget, requisition);
return;
}
long columns = GTK.gtk_tree_view_get_columns (handle), list = columns;
boolean fixVisible = columns != 0;
while (list != 0) {
long column = OS.g_list_data (list);
if (GTK.gtk_tree_view_column_get_visible (column)) {
fixVisible = false;
break;
}
list = OS.g_list_next (list);
}
long columnHandle = 0;
if (fixVisible) {
columnHandle = OS.g_list_data (columns);
GTK.gtk_tree_view_column_set_visible (columnHandle, true);
}
super.gtk_widget_get_preferred_size (widget, requisition);
if (fixVisible) {
GTK.gtk_tree_view_column_set_visible (columnHandle, false);
}
if (columns != 0) OS.g_list_free (columns);
}
void hideFirstColumn () {
long firstColumn = GTK.gtk_tree_view_get_column (handle, 0);
GTK.gtk_tree_view_column_set_visible (firstColumn, false);
}
@Override
void hookEvents () {
super.hookEvents ();
long selection = GTK.gtk_tree_view_get_selection(handle);
OS.g_signal_connect_closure (selection, OS.changed, display.getClosure (CHANGED), false);
OS.g_signal_connect_closure (handle, OS.row_activated, display.getClosure (ROW_ACTIVATED), false);
if (checkRenderer != 0) {
OS.g_signal_connect_closure (checkRenderer, OS.toggled, display.getClosure (TOGGLED), false);
}
OS.g_signal_connect_closure (handle, OS.start_interactive_search, display.getClosure (START_INTERACTIVE_SEARCH), false);
}
/**
* Searches the receiver's list starting at the first column
* (index 0) until a column is found that is equal to the
* argument, and returns the index of that column. If no column
* is found, returns -1.
*
* @param column the search column
* @return the index of the column
*
* @exception IllegalArgumentException
*
ERROR_NULL_ARGUMENT - if the column is null
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*/
public int indexOf (TableColumn column) {
checkWidget();
if (column == null) error (SWT.ERROR_NULL_ARGUMENT);
for (int i=0; i
*
ERROR_NULL_ARGUMENT - if the item is null
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*/
public int indexOf (TableItem item) {
checkWidget();
if (item == null) error (SWT.ERROR_NULL_ARGUMENT);
if (1 <= lastIndexOf && lastIndexOf < itemCount - 1) {
if (items [lastIndexOf] == item) return lastIndexOf;
if (items [lastIndexOf + 1] == item) return ++lastIndexOf;
if (items [lastIndexOf - 1] == item) return --lastIndexOf;
}
if (lastIndexOf < itemCount / 2) {
for (int i=0; i=0; --i) {
if (items [i] == item) return lastIndexOf = i;
}
}
return -1;
}
/**
* Returns true if the item is selected,
* and false otherwise. Indices out of
* range are ignored.
*
* @param index the index of the item
* @return the selection state of the item at the index
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*/
public boolean isSelected (int index) {
checkWidget();
long selection = GTK.gtk_tree_view_get_selection (handle);
byte [] buffer = Converter.wcsToMbcs (Integer.toString (index), true);
long path = GTK.gtk_tree_path_new_from_string (buffer);
boolean answer = GTK.gtk_tree_selection_path_is_selected (selection, path);
GTK.gtk_tree_path_free (path);
return answer;
}
@Override
boolean mnemonicHit (char key) {
for (int i=0; i
*
ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*/
public void remove (int index) {
checkWidget();
if (!(0 <= index && index < itemCount)) error (SWT.ERROR_ITEM_NOT_REMOVED);
long iter = OS.g_malloc (GTK.GtkTreeIter_sizeof ());
TableItem item = items [index];
boolean disposed = false;
if (item != null) {
disposed = item.isDisposed ();
if (!disposed) {
C.memmove (iter, item.handle, GTK.GtkTreeIter_sizeof ());
item.release (false);
}
} else {
GTK.gtk_tree_model_iter_nth_child (modelHandle, iter, 0, index);
}
if (!disposed) {
long selection = GTK.gtk_tree_view_get_selection (handle);
OS.g_signal_handlers_block_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED);
GTK.gtk_list_store_remove (modelHandle, iter);
OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED);
System.arraycopy (items, index + 1, items, index, --itemCount - index);
items [itemCount] = null;
}
OS.g_free (iter);
}
/**
* Removes the items from the receiver which are
* between the given zero-relative start and end
* indices (inclusive).
*
* @param start the start of the range
* @param end the end of the range
*
* @exception IllegalArgumentException
*
ERROR_INVALID_RANGE - if either the start or end are not between 0 and the number of elements in the list minus 1 (inclusive)
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*/
public void remove (int start, int end) {
checkWidget();
if (start > end) return;
if (!(0 <= start && start <= end && end < itemCount)) {
error (SWT.ERROR_INVALID_RANGE);
}
if (start == 0 && end == itemCount - 1) {
removeAll();
return;
}
checkSetDataInProcessBeforeRemoval(start, end + 1);
long selection = GTK.gtk_tree_view_get_selection (handle);
long iter = OS.g_malloc (GTK.GtkTreeIter_sizeof ());
if (iter == 0) error (SWT.ERROR_NO_HANDLES);
int index = -1;
for (index = start; index <= end; index++) {
if (index == start) GTK.gtk_tree_model_iter_nth_child (modelHandle, iter, 0, index);
TableItem item = items [index];
if (item != null && !item.isDisposed ()) item.release (false);
OS.g_signal_handlers_block_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED);
GTK.gtk_list_store_remove (modelHandle, iter);
OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED);
}
OS.g_free (iter);
index = end + 1;
System.arraycopy (items, index, items, start, itemCount - index);
for (int i=itemCount-(index-start); i
*
ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)
*
ERROR_NULL_ARGUMENT - if the indices array is null
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*/
public void remove (int [] indices) {
checkWidget();
if (indices == null) error (SWT.ERROR_NULL_ARGUMENT);
if (indices.length == 0) return;
int [] newIndices = new int [indices.length];
System.arraycopy (indices, 0, newIndices, 0, indices.length);
sort (newIndices);
int start = newIndices [newIndices.length - 1], end = newIndices [0];
if (!(0 <= start && start <= end && end < itemCount)) {
error (SWT.ERROR_INVALID_RANGE);
}
long selection = GTK.gtk_tree_view_get_selection (handle);
int last = -1;
long iter = OS.g_malloc (GTK.GtkTreeIter_sizeof ());
if (iter == 0) error (SWT.ERROR_NO_HANDLES);
for (int i=0; i
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*/
public void removeAll () {
checkWidget();
checkSetDataInProcessBeforeRemoval(0, items.length);
int index = itemCount - 1;
while (index >= 0) {
TableItem item = items [index];
if (item != null && !item.isDisposed ()) item.release (false);
--index;
}
items = new TableItem [4];
itemCount = 0;
long selection = GTK.gtk_tree_view_get_selection (handle);
OS.g_signal_handlers_block_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED);
/*
* Bug 499850: On GTK3, calling gtk_list_store_clear with GtkSelectionMode GTK_SELECTION_MULTIPLE
* takes exponential time. Temporarily change the mode GTK_SELECTION_BROWSE before
* making the call to avoid performance hang.
*/
long selectionHandle = GTK.gtk_tree_view_get_selection(handle);
boolean changeMode = (style & SWT.MULTI) != 0;
if (changeMode) GTK.gtk_tree_selection_set_mode(selectionHandle, GTK.GTK_SELECTION_BROWSE);
GTK.gtk_list_store_clear (modelHandle);
if (changeMode) GTK.gtk_tree_selection_set_mode(selectionHandle, GTK.GTK_SELECTION_MULTIPLE);
OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED);
resetCustomDraw ();
if (!searchEnabled ()) {
GTK.gtk_tree_view_set_search_column (handle, -1);
} else {
/* Set the search column whenever the model changes */
int firstColumn = columnCount == 0 ? FIRST_COLUMN : columns [0].modelIndex;
GTK.gtk_tree_view_set_search_column (handle, firstColumn + CELL_TEXT);
}
}
/**
* Removes the listener from the collection of listeners who will
* be notified when the user changes the receiver's selection.
*
* @param listener the listener which should no longer be notified
*
* @exception IllegalArgumentException
*
ERROR_NULL_ARGUMENT - if the listener is null
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @see SelectionListener
* @see #addSelectionListener(SelectionListener)
*/
public void removeSelectionListener(SelectionListener listener) {
checkWidget();
if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
if (eventTable == null) return;
eventTable.unhook (SWT.Selection, listener);
eventTable.unhook (SWT.DefaultSelection,listener);
}
void sendMeasureEvent (long cell, long width, long height) {
if (!ignoreSize && GTK.GTK_IS_CELL_RENDERER_TEXT (cell) && hooks (SWT.MeasureItem)) {
long iter = OS.g_object_get_qdata (cell, Display.SWT_OBJECT_INDEX2);
TableItem item = null;
boolean isSelected = false;
if (iter != 0) {
long path = GTK.gtk_tree_model_get_path (modelHandle, iter);
int [] buffer = new int [1];
C.memmove (buffer, GTK.gtk_tree_path_get_indices (path), 4);
int index = buffer [0];
item = _getItem (index);
long selection = GTK.gtk_tree_view_get_selection (handle);
isSelected = GTK.gtk_tree_selection_path_is_selected (selection, path);
GTK.gtk_tree_path_free (path);
}
if (item != null) {
int columnIndex = 0;
if (columnCount > 0) {
long columnHandle = OS.g_object_get_qdata (cell, Display.SWT_OBJECT_INDEX1);
for (int i = 0; i < columnCount; i++) {
if (columns [i].handle == columnHandle) {
columnIndex = i;
break;
}
}
}
int [] contentWidth = new int [1], contentHeight = new int [1];
if (width != 0) C.memmove (contentWidth, width, 4);
if (height != 0) C.memmove (contentHeight, height, 4);
GTK.gtk_cell_renderer_get_preferred_height_for_width (cell, handle, contentWidth[0], contentHeight, null);
Image image = item.getImage (columnIndex);
int imageWidth = 0;
if (image != null) {
Rectangle bounds;
if (DPIUtil.useCairoAutoScale()) {
bounds = image.getBounds ();
} else {
bounds = image.getBoundsInPixels();
}
imageWidth = bounds.width;
}
contentWidth [0] += imageWidth;
GC gc = new GC (this);
gc.setFont (item.getFont (columnIndex));
Event event = new Event ();
event.item = item;
event.index = columnIndex;
event.gc = gc;
Rectangle eventRect = new Rectangle (0, 0, contentWidth [0], contentHeight [0]);
event.setBounds (DPIUtil.autoScaleDown (eventRect));
if (isSelected) event.detail = SWT.SELECTED;
sendEvent (SWT.MeasureItem, event);
gc.dispose ();
Rectangle rect = DPIUtil.autoScaleUp (event.getBounds ());
contentWidth [0] = rect.width - imageWidth;
if (contentHeight [0] < rect.height) contentHeight [0] = rect.height;
if (width != 0) C.memmove (width, contentWidth, 4);
if (height != 0) C.memmove (height, contentHeight, 4);
GTK.gtk_cell_renderer_set_fixed_size (cell, -1, contentHeight [0]);
}
}
}
@Override
long rendererGetPreferredWidthProc (long cell, long handle, long minimun_size, long natural_size) {
long g_class = OS.g_type_class_peek_parent (OS.G_OBJECT_GET_CLASS (cell));
GtkCellRendererClass klass = new GtkCellRendererClass ();
OS.memmove (klass, g_class);
OS.call (klass.get_preferred_width, cell, handle, minimun_size, natural_size);
sendMeasureEvent (cell, minimun_size, 0);
return 0;
}
@Override
long rendererSnapshotProc (long cell, long snapshot, long widget, long background_area, long cell_area, long flags) {
long rect = Graphene.graphene_rect_alloc();
GdkRectangle gdkRectangle = new GdkRectangle ();
OS.memmove(gdkRectangle, background_area, GdkRectangle.sizeof);
Graphene.graphene_rect_init(rect, gdkRectangle.x, gdkRectangle.y, gdkRectangle.width, gdkRectangle.height);
long cairo = GTK4.gtk_snapshot_append_cairo(snapshot, rect);
rendererRender (cell, cairo, snapshot, widget, background_area, cell_area, 0, flags);
return 0;
}
@Override
long rendererRenderProc (long cell, long cr, long widget, long background_area, long cell_area, long flags) {
rendererRender (cell, cr, 0, widget, background_area, cell_area, 0, flags);
return 0;
}
void rendererRender (long cell, long cr, long snapshot, long widget, long background_area, long cell_area, long expose_area, long flags) {
TableItem item = null;
boolean wasSelected = false;
long iter = OS.g_object_get_qdata (cell, Display.SWT_OBJECT_INDEX2);
if (iter != 0) {
long path = GTK.gtk_tree_model_get_path (modelHandle, iter);
int [] buffer = new int [1];
C.memmove (buffer, GTK.gtk_tree_path_get_indices (path), 4);
int index = buffer [0];
item = _getItem (index);
GTK.gtk_tree_path_free (path);
}
long columnHandle = OS.g_object_get_qdata (cell, Display.SWT_OBJECT_INDEX1);
int columnIndex = 0;
if (columnCount > 0) {
for (int i = 0; i < columnCount; i++) {
if (columns [i].handle == columnHandle) {
columnIndex = i;
break;
}
}
}
GdkRectangle rendererRect = new GdkRectangle ();
GdkRectangle columnRect = new GdkRectangle ();
int y_offset;
{
/*
* SWT creates multiple renderers (kind of sub-columns) per column.
* For example: one for checkbox, one for image, one for text.
* 'background_area' argument in this function is area of currently
* painted renderer. However, for SWT.EraseItem and SWT.PaintItem,
* SWT wants entire column's area along with the event. There's api
* 'gtk_tree_view_get_background_area()' but it calculates item's
* rect in control, which will have wrong Y if item is rendered
* separately (for example, for drag image).
* The workaround is to take X range from api and Y range from argument.
*/
OS.memmove (rendererRect, background_area, GdkRectangle.sizeof);
long path = GTK.gtk_tree_model_get_path (modelHandle, iter);
GTK.gtk_tree_view_get_background_area (handle, path, columnHandle, columnRect);
GTK.gtk_tree_path_free (path);
y_offset = columnRect.y - rendererRect.y;
columnRect.y -= y_offset;
}
if (item != null) {
if (GTK.GTK_IS_CELL_RENDERER_TOGGLE (cell) || (columnIndex != 0 || (style & SWT.CHECK) == 0)) {
drawFlags = (int)flags;
drawState = SWT.FOREGROUND;
long [] ptr = new long [1];
GTK.gtk_tree_model_get (modelHandle, item.handle, Table.BACKGROUND_COLUMN, ptr, -1);
if (ptr [0] == 0) {
int modelIndex = columnCount == 0 ? Table.FIRST_COLUMN : columns [columnIndex].modelIndex;
GTK.gtk_tree_model_get (modelHandle, item.handle, modelIndex + Table.CELL_BACKGROUND, ptr, -1);
}
if (ptr [0] != 0) {
drawState |= SWT.BACKGROUND;
GDK.gdk_rgba_free (ptr [0]);
}
if ((flags & GTK.GTK_CELL_RENDERER_SELECTED) != 0) drawState |= SWT.SELECTED;
if ((flags & GTK.GTK_CELL_RENDERER_SELECTED) == 0) {
if ((flags & GTK.GTK_CELL_RENDERER_FOCUSED) != 0) drawState |= SWT.FOCUSED;
}
Rectangle rect = columnRect.toRectangle ();
if ((drawState & SWT.SELECTED) == 0) {
if ((state & PARENT_BACKGROUND) != 0 || backgroundImage != null) {
Control control = findBackgroundControl ();
if (control != null) {
if (cr != 0) {
Cairo.cairo_save (cr);
}
drawBackground (control, 0, cr, rect.x, rect.y, rect.width, rect.height);
if (cr != 0) {
Cairo.cairo_restore (cr);
}
}
}
}
//send out measure before erase
long textRenderer = getTextRenderer (columnHandle);
if (textRenderer != 0) gtk_cell_renderer_get_preferred_size (textRenderer, handle, null, null);
if (hooks (SWT.EraseItem)) {
Cairo.cairo_save(cr);
/*
* Cache the selection state so that it is not lost if a
* PaintListener wants to draw custom selection foregrounds.
* See bug 528155.
*/
wasSelected = (drawState & SWT.SELECTED) != 0;
if (wasSelected) {
Control control = findBackgroundControl ();
if (control == null) control = this;
}
GC gc = getGC(cr);
if ((drawState & SWT.SELECTED) != 0) {
gc.setBackground (display.getSystemColor (SWT.COLOR_LIST_SELECTION));
gc.setForeground (display.getSystemColor (SWT.COLOR_LIST_SELECTION_TEXT));
} else {
gc.setBackground (item.getBackground (columnIndex));
gc.setForeground (item.getForeground (columnIndex));
}
gc.setFont (item.getFont (columnIndex));
if ((style & SWT.MIRRORED) != 0) rect.x = getClientWidth () - rect.width - rect.x;
if (cr != 0) {
GdkRectangle r = new GdkRectangle();
GDK.gdk_cairo_get_clip_rectangle(cr, r);
Rectangle rect2 = DPIUtil.autoScaleDown(rect);
// Caveat: rect2 is necessary because GC#setClipping(Rectangle) got broken by bug 446075
gc.setClipping(rect2.x, rect2.y, rect2.width, rect2.height);
} else {
Rectangle rect2 = DPIUtil.autoScaleDown(rect);
// Caveat: rect2 is necessary because GC#setClipping(Rectangle) got broken by bug 446075
gc.setClipping(rect2.x, rect2.y, rect2.width, rect2.height);
}
// SWT.PaintItem/SWT.EraseItem often expect that event.y matches
// what 'event.item.getBounds()' returns. The workaround is to
// adjust coordinate system temporarily.
Event event = new Event ();
try {
Rectangle eventRect = new Rectangle (rect.x, rect.y, rect.width, rect.height);
eventRect.y += y_offset;
Cairo.cairo_translate (cr, 0, -y_offset);
event.item = item;
event.index = columnIndex;
event.gc = gc;
event.detail = drawState;
event.setBounds (DPIUtil.autoScaleDown (eventRect));
sendEvent (SWT.EraseItem, event);
} finally {
Cairo.cairo_translate (cr, 0, y_offset);
}
drawForegroundRGBA = null;
drawState = event.doit ? event.detail : 0;
drawFlags &= ~(GTK.GTK_CELL_RENDERER_FOCUSED | GTK.GTK_CELL_RENDERER_SELECTED);
if ((drawState & SWT.SELECTED) != 0) drawFlags |= GTK.GTK_CELL_RENDERER_SELECTED;
if ((drawState & SWT.FOCUSED) != 0) drawFlags |= GTK.GTK_CELL_RENDERER_FOCUSED;
if ((drawState & SWT.SELECTED) != 0) {
Cairo.cairo_save (cr);
Cairo.cairo_reset_clip (cr);
long context = GTK.gtk_widget_get_style_context (widget);
GTK.gtk_style_context_save (context);
GTK.gtk_style_context_add_class (context, GTK.GTK_STYLE_CLASS_CELL);
GTK.gtk_style_context_set_state (context, GTK.GTK_STATE_FLAG_SELECTED);
GTK.gtk_render_background(context, cr, rect.x, rect.y, rect.width, rect.height);
GTK.gtk_style_context_restore (context);
Cairo.cairo_restore (cr);
} else {
if (wasSelected) {
drawForegroundRGBA = gc.getForeground ().handle;
}
}
gc.dispose();
Cairo.cairo_restore(cr);
}
}
}
if ((drawState & SWT.BACKGROUND) != 0 && (drawState & SWT.SELECTED) == 0) {
GC gc = getGC(cr);
gc.setBackground (item.getBackground (columnIndex));
gc.fillRectangle (DPIUtil.autoScaleDown (rendererRect.toRectangle ()));
gc.dispose ();
}
if ((drawState & SWT.FOREGROUND) != 0 || GTK.GTK_IS_CELL_RENDERER_TOGGLE (cell)) {
long g_class = OS.g_type_class_peek_parent (OS.G_OBJECT_GET_CLASS (cell));
GtkCellRendererClass klass = new GtkCellRendererClass ();
OS.memmove (klass, g_class);
if (GTK.GTK_IS_CELL_RENDERER_TEXT (cell)) {
/*
* SWT.FOREGROUND means the Table is responsible for painting the default foreground
* color. This can be either the system default (COLOR_LIST_FOREGROUND), or the
* color set by setForeground(). See bug 294300.
*/
GdkRGBA rgba = foreground != null ? foreground : display.getSystemColor(SWT.COLOR_LIST_FOREGROUND).handle;
OS.g_object_set (cell, OS.foreground_rgba, rgba, 0);
}
if (GTK.GTK4) {
OS.call (klass.snapshot, cell, snapshot, widget, background_area, cell_area, drawFlags);
} else {
OS.call (klass.render, cell, cr, widget, background_area, cell_area, drawFlags);
}
}
if (item != null) {
if (GTK.GTK_IS_CELL_RENDERER_TEXT (cell)) {
if (hooks (SWT.PaintItem)) {
if (wasSelected) drawState |= SWT.SELECTED;
Rectangle rect = columnRect.toRectangle ();
ignoreSize = true;
int [] contentX = new int [1], contentWidth = new int [1];
gtk_cell_renderer_get_preferred_size (cell, handle, contentWidth, null);
gtk_tree_view_column_cell_get_position (columnHandle, cell, contentX, null);
ignoreSize = false;
Image image = item.getImage (columnIndex);
int imageWidth = 0;
if (image != null) {
Rectangle bounds;
if (DPIUtil.useCairoAutoScale()) {
bounds = image.getBounds ();
} else {
bounds = image.getBoundsInPixels ();
}
imageWidth = bounds.width;
}
contentX [0] -= imageWidth;
contentWidth [0] += imageWidth;
GC gc = getGC(cr);
if ((drawState & SWT.SELECTED) != 0) {
Color background, foreground;
if (GTK.gtk_widget_has_focus (handle)) {
background = display.getSystemColor (SWT.COLOR_LIST_SELECTION);
foreground = display.getSystemColor (SWT.COLOR_LIST_SELECTION_TEXT);
} else {
/*
* Feature in GTK. When the widget doesn't have focus, then
* gtk_paint_flat_box () changes the background color state_type
* to GTK_STATE_ACTIVE. The fix is to use the same values in the GC.
*/
background = Color.gtk_new (display, display.COLOR_LIST_SELECTION_INACTIVE_RGBA);
foreground = Color.gtk_new (display, display.COLOR_LIST_SELECTION_TEXT_INACTIVE_RGBA);
}
gc.setBackground (background);
gc.setForeground (foreground);
} else {
gc.setBackground (item.getBackground (columnIndex));
Color foreground = drawForegroundRGBA != null ? Color.gtk_new (display, drawForegroundRGBA) : item.getForeground (columnIndex);
gc.setForeground (foreground);
}
gc.setFont (item.getFont (columnIndex));
if ((style & SWT.MIRRORED) != 0) rect.x = getClientWidth () - rect.width - rect.x;
Rectangle rect2 = DPIUtil.autoScaleDown(rect);
// Caveat: rect2 is necessary because GC#setClipping(Rectangle) got broken by bug 446075
gc.setClipping(rect2.x, rect2.y, rect2.width, rect2.height);
// SWT.PaintItem/SWT.EraseItem often expect that event.y matches
// what 'event.item.getBounds()' returns. The workaround is to
// adjust coordinate system temporarily.
Event event = new Event ();
try {
Rectangle eventRect = new Rectangle (rect.x + contentX [0], rect.y, contentWidth [0], rect.height);
eventRect.y += y_offset;
Cairo.cairo_translate (cr, 0, -y_offset);
event.item = item;
event.index = columnIndex;
event.gc = gc;
event.detail = drawState;
event.setBounds (DPIUtil.autoScaleDown (eventRect));
sendEvent (SWT.PaintItem, event);
} finally {
Cairo.cairo_translate (cr, 0, y_offset);
}
gc.dispose();
}
}
}
}
private GC getGC(long cr) {
GC gc;
GCData gcData = new GCData();
gcData.cairo = cr;
gc = GC.gtk_new(this, gcData );
return gc;
}
void resetCustomDraw () {
if ((style & SWT.VIRTUAL) != 0 || ownerDraw) return;
int end = Math.max (1, columnCount);
for (int i=0; i
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*/
public void select (int index) {
checkWidget();
if (!(0 <= index && index < itemCount)) return;
boolean fixColumn = showFirstColumn ();
long selection = GTK.gtk_tree_view_get_selection (handle);
OS.g_signal_handlers_block_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED);
TableItem item = _getItem (index);
GTK.gtk_tree_selection_select_iter (selection, item.handle);
OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED);
if (fixColumn) hideFirstColumn ();
}
/**
* Selects the items in the range specified by the given zero-relative
* indices in the receiver. The range of indices is inclusive.
* The current selection is not cleared before the new items are selected.
*
* If an item in the given range is not selected, it is selected.
* If an item in the given range was already selected, it remains selected.
* Indices that are out of range are ignored and no items will be selected
* if start is greater than end.
* If the receiver is single-select and there is more than one item in the
* given range, then all indices are ignored.
*
*
* @param start the start of the range
* @param end the end of the range
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @see Table#setSelection(int,int)
*/
public void select (int start, int end) {
checkWidget ();
if (end < 0 || start > end || ((style & SWT.SINGLE) != 0 && start != end)) return;
if (itemCount == 0 || start >= itemCount) return;
start = Math.max (0, start);
end = Math.min (end, itemCount - 1);
boolean fixColumn = showFirstColumn ();
long selection = GTK.gtk_tree_view_get_selection (handle);
OS.g_signal_handlers_block_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED);
for (int index=start; index<=end; index++) {
TableItem item = _getItem (index);
GTK.gtk_tree_selection_select_iter (selection, item.handle);
}
OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED);
if (fixColumn) hideFirstColumn ();
}
/**
* Selects the items at the given zero-relative indices in the receiver.
* The current selection is not cleared before the new items are selected.
*
* If the item at a given index is not selected, it is selected.
* If the item at a given index was already selected, it remains selected.
* Indices that are out of range and duplicate indices are ignored.
* If the receiver is single-select and multiple indices are specified,
* then all indices are ignored.
*
*
* @param indices the array of indices for the items to select
*
* @exception IllegalArgumentException
*
ERROR_NULL_ARGUMENT - if the array of indices is null
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @see Table#setSelection(int[])
*/
public void select (int [] indices) {
checkWidget ();
if (indices == null) error (SWT.ERROR_NULL_ARGUMENT);
int length = indices.length;
if (length == 0 || ((style & SWT.SINGLE) != 0 && length > 1)) return;
boolean fixColumn = showFirstColumn ();
long selection = GTK.gtk_tree_view_get_selection (handle);
OS.g_signal_handlers_block_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED);
for (int i=0; i
* If the receiver is single-select, do nothing.
*
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*/
public void selectAll () {
checkWidget();
if ((style & SWT.SINGLE) != 0) return;
boolean fixColumn = showFirstColumn ();
long selection = GTK.gtk_tree_view_get_selection (handle);
OS.g_signal_handlers_block_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED);
GTK.gtk_tree_selection_select_all (selection);
OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED);
if (fixColumn) hideFirstColumn ();
}
void selectFocusIndex (int index) {
/*
* Note that this method both selects and sets the focus to the
* specified index, so any previous selection in the list will be lost.
* gtk does not provide a way to just set focus to a specified list item.
*/
if (!(0 <= index && index < itemCount)) return;
TableItem item = _getItem (index);
long path = GTK.gtk_tree_model_get_path (modelHandle, item.handle);
long selection = GTK.gtk_tree_view_get_selection (handle);
OS.g_signal_handlers_block_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED);
GTK.gtk_tree_view_set_cursor (handle, path, 0, false);
OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED);
GTK.gtk_tree_path_free (path);
}
@Override
void setBackgroundGdkRGBA (long context, long handle, GdkRGBA rgba) {
/* Setting the background color overrides the selected background color.
* To prevent this, we need to re-set the default. This can be done with CSS
* on GTK3.14+, or by using GtkStateFlags as an argument to
* gtk_widget_override_background_color() on versions of GTK3 less than 3.16.
*/
if (rgba == null) {
background = defaultBackground();
} else {
background = rgba;
}
GdkRGBA selectedBackground = display.getSystemColor(SWT.COLOR_LIST_SELECTION).handle;
String css = "treeview {background-color: " + display.gtk_rgba_to_css_string(background) + ";}\n"+
"treeview:selected {background-color: " + display.gtk_rgba_to_css_string(selectedBackground) + ";}";
// Cache background color
cssBackground = css;
// Apply background color and any foreground color
String finalCss = display.gtk_css_create_css_color_string (cssBackground, cssForeground, SWT.BACKGROUND);
gtk_css_provider_load_from_css(context, finalCss);
}
@Override
void setBackgroundSurface (Image image) {
ownerDraw = true;
recreateRenderers ();
}
@Override
int setBounds (int x, int y, int width, int height, boolean move, boolean resize) {
int result = super.setBounds (x, y, width, height, move, resize);
if (result != 0) {
boundsChangedSinceLastDraw = true;
}
/*
* Bug on GTK. The tree view sometimes does not get a paint
* event or resizes to a one pixel square when resized in a new
* shell that is not visible after any event loop has been run. The
* problem is intermittent. It doesn't seem to happen the first time
* a new shell is created. The fix is to ensure the tree view is realized
* after it has been resized.
*/
GTK.gtk_widget_realize (handle);
return result;
}
/**
* Sets the order that the items in the receiver should
* be displayed in to the given argument which is described
* in terms of the zero-relative ordering of when the items
* were added.
*
* @param order the new order to display the items
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
* @exception IllegalArgumentException
*
ERROR_NULL_ARGUMENT - if the item order is null
*
ERROR_INVALID_ARGUMENT - if the item order is not the same length as the number of items
*
*
* @see Table#getColumnOrder()
* @see TableColumn#getMoveable()
* @see TableColumn#setMoveable(boolean)
* @see SWT#Move
*
* @since 3.1
*/
public void setColumnOrder (int [] order) {
checkWidget ();
if (order == null) error (SWT.ERROR_NULL_ARGUMENT);
if (columnCount == 0) {
if (order.length > 0) error (SWT.ERROR_INVALID_ARGUMENT);
return;
}
if (order.length != columnCount) error (SWT.ERROR_INVALID_ARGUMENT);
boolean [] seen = new boolean [columnCount];
for (int i = 0; i= columnCount) error (SWT.ERROR_INVALID_RANGE);
if (seen [index]) error (SWT.ERROR_INVALID_ARGUMENT);
seen [index] = true;
}
for (int i=0; i
* Note: This operation is a HINT and is not supported on all platforms. If
* the native header has a 3D look and feel (e.g. Windows 7), this method
* will cause the header to look FLAT irrespective of the state of the table style.
*
* @param color the new color (or null)
*
* @exception IllegalArgumentException
*
ERROR_INVALID_ARGUMENT - if the argument has been disposed
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
* @since 3.106
*/
public void setHeaderBackground(Color color) {
checkWidget();
if (color != null) {
if (color.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
if (color.equals(headerBackground)) return;
}
headerBackground = color;
updateHeaderCSS();
}
void updateHeaderCSS() {
StringBuilder css = new StringBuilder("button {");
if (headerBackground != null) {
/*
* Bug 571466: On some platforms & themes, the 'background-image'
* css tag also needs to be set in order to change the
* background color. Using 'background' tag as it overrides both
* 'background-image' and 'background-color'.
*/
css.append("background: " + display.gtk_rgba_to_css_string(headerBackground.handle) + "; ");
}
if (headerForeground != null) {
css.append("color: " + display.gtk_rgba_to_css_string(headerForeground.handle) + "; ");
}
css.append("}\n");
if (columnCount == 0) {
long buttonHandle = GTK.gtk_tree_view_column_get_button(GTK.gtk_tree_view_get_column(handle, 0));
if (headerCSSProvider == 0) {
headerCSSProvider = GTK.gtk_css_provider_new();
GTK.gtk_style_context_add_provider(GTK.gtk_widget_get_style_context(buttonHandle), headerCSSProvider, GTK.GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
}
if (GTK.GTK4) {
GTK4.gtk_css_provider_load_from_data(headerCSSProvider, Converter.javaStringToCString(css.toString()), -1);
} else {
GTK3.gtk_css_provider_load_from_data(headerCSSProvider, Converter.javaStringToCString(css.toString()), -1, null);
}
} else {
for (TableColumn column : columns) {
if (column != null) {
column.setHeaderCSS(css.toString());
}
}
}
}
/**
* Sets the header foreground color to the color specified
* by the argument, or to the default system color if the argument is null.
*
* Note: This operation is a HINT and is not supported on all platforms. If
* the native header has a 3D look and feel (e.g. Windows 7), this method
* will cause the header to look FLAT irrespective of the state of the table style.
*
* @param color the new color (or null)
*
* @exception IllegalArgumentException
*
ERROR_INVALID_ARGUMENT - if the argument has been disposed
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
* @since 3.106
*/
public void setHeaderForeground(Color color) {
checkWidget();
if (color != null) {
if (color.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
if (color.equals(headerForeground)) return;
}
headerForeground = color;
updateHeaderCSS();
}
/**
* Marks the receiver's header as visible if the argument is true,
* and marks it invisible otherwise.
*
* If one of the receiver's ancestors is not visible or some
* other condition makes the receiver not visible, marking
* it visible may not actually cause it to be displayed.
*
*
* @param show the new visibility state
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*/
public void setHeaderVisible (boolean show) {
checkWidget ();
GTK.gtk_tree_view_set_headers_visible (handle, show);
this.headerHeight = this.getHeaderHeight();
this.headerVisible = show;
}
/**
* Sets the number of items contained in the receiver.
*
* @param count the number of items
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @since 3.0
*/
public void setItemCount (int count) {
checkWidget ();
count = Math.max (0, count);
if (count == itemCount) return;
boolean isVirtual = (style & SWT.VIRTUAL) != 0;
if (!isVirtual) setRedraw (false);
remove (count, itemCount - 1);
int length = Math.max (4, (count + 3) / 4 * 4);
TableItem [] newItems = new TableItem [length];
System.arraycopy (items, 0, newItems, 0, itemCount);
items = newItems;
if (isVirtual) {
long iter = OS.g_malloc (GTK.GtkTreeIter_sizeof ());
if (iter == 0) error (SWT.ERROR_NO_HANDLES);
for (int i=itemCount; itrue,
* and marks it invisible otherwise. Note that some platforms draw grid lines
* while others may draw alternating row colors.
*
* If one of the receiver's ancestors is not visible or some
* other condition makes the receiver not visible, marking
* it visible may not actually cause it to be displayed.
*
*
* @param show the new visibility state
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*/
public void setLinesVisible (boolean show) {
checkWidget();
//Note: this is overriden by the active theme in GTK3.
GTK.gtk_tree_view_set_grid_lines (handle, show ? GTK.GTK_TREE_VIEW_GRID_LINES_VERTICAL : GTK.GTK_TREE_VIEW_GRID_LINES_NONE);
}
void setModel (long newModel) {
display.removeWidget (modelHandle);
OS.g_object_unref (modelHandle);
modelHandle = newModel;
display.addWidget (modelHandle, this);
}
@Override
void setOrientation (boolean create) {
super.setOrientation (create);
for (int i=0; i 4 && items.length - itemCount > 3) {
int length = Math.max (4, (itemCount + 3) / 4 * 4);
TableItem [] newItems = new TableItem [length];
System.arraycopy (items, 0, newItems, 0, itemCount);
items = newItems;
}
}
}
void setScrollWidth (long column, TableItem item) {
if (columnCount != 0 || currentItem == item) return;
int width = GTK.gtk_tree_view_column_get_fixed_width (column);
int itemWidth = calculateWidth (column, item.handle);
if (width < itemWidth) {
GTK.gtk_tree_view_column_set_fixed_width (column, itemWidth);
}
}
/**
* Sets the column used by the sort indicator for the receiver. A null
* value will clear the sort indicator. The current sort column is cleared
* before the new column is set.
*
* @param column the column used by the sort indicator or null
*
* @exception IllegalArgumentException
*
ERROR_INVALID_ARGUMENT - if the column is disposed
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @since 3.2
*/
public void setSortColumn (TableColumn column) {
checkWidget ();
if (column != null && column.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT);
if (sortColumn != null && !sortColumn.isDisposed()) {
GTK.gtk_tree_view_column_set_sort_indicator (sortColumn.handle, false);
}
sortColumn = column;
if (sortColumn != null && sortDirection != SWT.NONE) {
GTK.gtk_tree_view_column_set_sort_indicator (sortColumn.handle, true);
GTK.gtk_tree_view_column_set_sort_order (sortColumn.handle, sortDirection == SWT.DOWN ? 0 : 1);
}
}
/**
* Sets the direction of the sort indicator for the receiver. The value
* can be one of UP, DOWN or NONE.
*
* @param direction the direction of the sort indicator
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @since 3.2
*/
public void setSortDirection (int direction) {
checkWidget ();
if (direction != SWT.UP && direction != SWT.DOWN && direction != SWT.NONE) return;
sortDirection = direction;
if (sortColumn == null || sortColumn.isDisposed ()) return;
if (sortDirection == SWT.NONE) {
GTK.gtk_tree_view_column_set_sort_indicator (sortColumn.handle, false);
} else {
GTK.gtk_tree_view_column_set_sort_indicator (sortColumn.handle, true);
GTK.gtk_tree_view_column_set_sort_order (sortColumn.handle, sortDirection == SWT.DOWN ? 0 : 1);
}
}
/**
* Selects the item at the given zero-relative index in the receiver.
* The current selection is first cleared, then the new item is selected,
* and if necessary the receiver is scrolled to make the new selection visible.
*
* @param index the index of the item to select
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @see Table#deselectAll()
* @see Table#select(int)
*/
public void setSelection (int index) {
checkWidget ();
boolean fixColumn = showFirstColumn ();
deselectAll ();
selectFocusIndex (index);
showSelection ();
if (fixColumn) hideFirstColumn ();
}
/**
* Selects the items in the range specified by the given zero-relative
* indices in the receiver. The range of indices is inclusive.
* The current selection is cleared before the new items are selected,
* and if necessary the receiver is scrolled to make the new selection visible.
*
* Indices that are out of range are ignored and no items will be selected
* if start is greater than end.
* If the receiver is single-select and there is more than one item in the
* given range, then all indices are ignored.
*
*
* @param start the start index of the items to select
* @param end the end index of the items to select
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @see Table#deselectAll()
* @see Table#select(int,int)
*/
public void setSelection (int start, int end) {
checkWidget ();
deselectAll();
if (end < 0 || start > end || ((style & SWT.SINGLE) != 0 && start != end)) return;
if (itemCount == 0 || start >= itemCount) return;
boolean fixColumn = showFirstColumn ();
start = Math.max (0, start);
end = Math.min (end, itemCount - 1);
selectFocusIndex (start);
if ((style & SWT.MULTI) != 0) {
select (start, end);
}
showSelection ();
if (fixColumn) hideFirstColumn ();
}
/**
* Selects the items at the given zero-relative indices in the receiver.
* The current selection is cleared before the new items are selected,
* and if necessary the receiver is scrolled to make the new selection visible.
*
* Indices that are out of range and duplicate indices are ignored.
* If the receiver is single-select and multiple indices are specified,
* then all indices are ignored.
*
*
* @param indices the indices of the items to select
*
* @exception IllegalArgumentException
*
ERROR_NULL_ARGUMENT - if the array of indices is null
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @see Table#deselectAll()
* @see Table#select(int[])
*/
public void setSelection (int [] indices) {
checkWidget ();
if (indices == null) error (SWT.ERROR_NULL_ARGUMENT);
deselectAll ();
int length = indices.length;
if (length == 0 || ((style & SWT.SINGLE) != 0 && length > 1)) return;
boolean fixColumn = showFirstColumn ();
selectFocusIndex (indices [0]);
if ((style & SWT.MULTI) != 0) {
select (indices);
}
showSelection ();
if (fixColumn) hideFirstColumn ();
}
/**
* Sets the receiver's selection to the given item.
* The current selection is cleared before the new item is selected,
* and if necessary the receiver is scrolled to make the new selection visible.
*
* If the item is not in the receiver, then it is ignored.
*
*
* @param item the item to select
*
* @exception IllegalArgumentException
*
ERROR_NULL_ARGUMENT - if the item is null
*
ERROR_INVALID_ARGUMENT - if the item has been disposed
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @since 3.2
*/
public void setSelection (TableItem item) {
if (item == null) error (SWT.ERROR_NULL_ARGUMENT);
setSelection (new TableItem [] {item});
}
/**
* Sets the receiver's selection to be the given array of items.
* The current selection is cleared before the new items are selected,
* and if necessary the receiver is scrolled to make the new selection visible.
*
* Items that are not in the receiver are ignored.
* If the receiver is single-select and multiple items are specified,
* then all items are ignored.
*
*
* @param items the array of items
*
* @exception IllegalArgumentException
*
ERROR_NULL_ARGUMENT - if the array of items is null
*
ERROR_INVALID_ARGUMENT - if one of the items has been disposed
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @see Table#deselectAll()
* @see Table#select(int[])
* @see Table#setSelection(int[])
*/
public void setSelection (TableItem [] items) {
checkWidget ();
if (items == null) error (SWT.ERROR_NULL_ARGUMENT);
boolean fixColumn = showFirstColumn ();
deselectAll ();
int length = items.length;
if (!(length == 0 || ((style & SWT.SINGLE) != 0 && length > 1))) {
boolean first = true;
for (int i = 0; i < length; i++) {
int index = indexOf (items [i]);
if (index != -1) {
if (first) {
first = false;
selectFocusIndex (index);
} else {
select (index);
}
}
}
showSelection ();
}
if (fixColumn) hideFirstColumn ();
}
/**
* Sets the zero-relative index of the item which is currently
* at the top of the receiver. This index can change when items
* are scrolled or new items are added and removed.
*
* @param index the index of the top item
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*/
public void setTopIndex (int index) {
checkWidget();
if (!(0 <= index && index < itemCount)) return;
/*
* Feature in GTK: cache the GtkAdjustment value for future use in
* getTopIndex(). Set topIndex to index.
*/
long vAdjustment;
vAdjustment = GTK.gtk_scrollable_get_vadjustment(handle);
cachedAdjustment = GTK.gtk_adjustment_get_value(vAdjustment);
topIndex = index;
long path = GTK.gtk_tree_model_get_path (modelHandle, _getItem (index).handle);
GTK.gtk_tree_view_scroll_to_cell (handle, path, 0, true, 0f, 0f);
GTK.gtk_tree_path_free (path);
}
/**
* Shows the column. If the column is already showing in the receiver,
* this method simply returns. Otherwise, the columns are scrolled until
* the column is visible.
*
* @param column the column to be shown
*
* @exception IllegalArgumentException
*
ERROR_NULL_ARGUMENT - if the column is null
*
ERROR_INVALID_ARGUMENT - if the column has been disposed
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @since 3.0
*/
public void showColumn (TableColumn column) {
checkWidget ();
if (column == null) error (SWT.ERROR_NULL_ARGUMENT);
if (column.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
if (column.parent != this) return;
GTK.gtk_tree_view_scroll_to_cell (handle, 0, column.handle, false, 0, 0);
}
boolean showFirstColumn () {
/*
* Bug in GTK. If no columns are visible, changing the selection
* will fail. The fix is to temporarily make a column visible.
*/
int columnCount = Math.max (1, this.columnCount);
for (int i=0; i
*
ERROR_NULL_ARGUMENT - if the item is null
*
ERROR_INVALID_ARGUMENT - if the item has been disposed
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @see Table#showSelection()
*/
public void showItem (TableItem item) {
checkWidget ();
if (item == null) error (SWT.ERROR_NULL_ARGUMENT);
if (item.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT);
if (item.parent != this) return;
showItem (item.handle);
}
void showItem (long iter) {
long path = GTK.gtk_tree_model_get_path (modelHandle, iter);
GTK.gtk_tree_view_scroll_to_cell (handle, path, 0, false, 0, 0);
GTK.gtk_tree_path_free (path);
}
/**
* Shows the selection. If the selection is already showing in the receiver,
* this method simply returns. Otherwise, the items are scrolled until
* the selection is visible.
*
* @exception SWTException
*
ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @see Table#showItem(TableItem)
*/
public void showSelection () {
checkWidget();
TableItem [] selection = getSelection ();
if (selection.length == 0) return;
TableItem item = selection [0];
showItem (item.handle);
}
@Override
void updateScrollBarValue (ScrollBar bar) {
super.updateScrollBarValue (bar);
if (!GTK.GTK4) {
/*
* Bug in GTK. Scrolling changes the XWindow position
* and makes the child widgets appear to scroll even
* though when queried their position is unchanged.
* The fix is to queue a resize event for each child to
* force the position to be corrected.
*/
long parentHandle = parentingHandle ();
long list = GTK3.gtk_container_get_children (parentHandle);
if (list == 0) return;
long temp = list;
while (temp != 0) {
long widget = OS.g_list_data (temp);
if (widget != 0) GTK.gtk_widget_queue_resize (widget);
temp = OS.g_list_next (temp);
}
OS.g_list_free (list);
}
}
@Override
long windowProc (long handle, long arg0, long user_data) {
switch ((int)user_data) {
case EXPOSE_EVENT: {
/*
* If this Table has any child widgets, propagate the draw signal
* to them using gtk_container_propagate_draw(). See bug 531928.
*/
if (hasChildren) {
/*
* If headers are visible, set noChildDrawing to true
* this will prevent any child widgets from drawing
* over the header buttons. See bug 535978.
*/
if (headerVisible) {
noChildDrawing = true;
}
propagateDraw(handle, arg0);
}
break;
}
case EXPOSE_EVENT_INVERSE: {
/*
* Feature in GTK. When the GtkTreeView has no items it does not propagate
* expose events. The fix is to fill the background in the inverse expose
* event.
*/
if (itemCount == 0 && (state & OBSCURED) == 0 && !GTK.GTK4) {
if ((state & PARENT_BACKGROUND) != 0 || backgroundImage != null) {
Control control = findBackgroundControl ();
if (control != null) {
long window = GTK3.gtk_tree_view_get_bin_window (handle);
if (window == GTK3.gtk_widget_get_window(handle)) {
GdkRectangle rect = new GdkRectangle ();
GDK.gdk_cairo_get_clip_rectangle (arg0, rect);
drawBackground (control, window, arg0, rect.x, rect.y, rect.width, rect.height);
}
}
}
}
break;
}
}
return super.windowProc (handle, arg0, user_data);
}
@Override
Point resizeCalculationsGTK3 (long widget, int width, int height) {
Point sizes = super.resizeCalculationsGTK3(widget, width, height);
/*
* Bug - Resizing Problems View can cause invalid rectangle errors on standard eror
*
* When resizing an SWT tree or table, its possible that the horizontal scrollbar overlaps with the column headers.
* This is possible due to SWT native resizing on the scrolled window of the tree or table.
* To avoid the error, we set a minimal size for the scrolled window.
* This height is equal to the header and scrollbar heights if both are visible,
* plus the total border height (bottom and top border height combined).
* In the error case, the SWT fixed which contains the table still resizes as expected,
* and the horizontal scrollbar is only partially visible so that it doesn't overlap with table headers.
*/
if (widget == scrolledHandle && getHeaderVisible()) {
int hScrollBarHeight = hScrollBarWidth(); // this actually returns height
if (hScrollBarHeight > 0) {
sizes.y = Math.max(sizes.y, getHeaderHeight() + hScrollBarHeight + (getBorderWidth() * 2));
}
}
return sizes;
}
/**
* Check the table item range [start, end) for items that are in process of
* sending {@code SWT#SetData} event. If such items exist, throw an exception.
*
* Does nothing if the given range contains no indices.
*
* @param start index of first item to check
* @param end index after the last item to check
*/
void checkSetDataInProcessBeforeRemoval(int start, int end) {
/*
* Bug 182598 - assertion failed in gtktreestore.c
*
* To prevent a crash in GTK, we ensure we are not setting data on the tree items we are about to remove.
* Removing an item while its data is being set will invalidate it, which will cause a crash.
*
* We therefore throw an exception to prevent the crash.
*/
for (int i = start; i < end; i++) {
TableItem item = items[i];
if (item != null && item.settingData) {
String message = "Cannot remove a table item while its data is being set. "
+ "At item " + i + " in range [" + start + ", " + end + ").";
throw new SWTException(message);
}
}
}
@Override
public void dispose() {
super.dispose();
if (headerCSSProvider != 0) {
OS.g_object_unref(headerCSSProvider);
headerCSSProvider = 0;
}
}
}
