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/* Copyright 1999-2015 Vince Via [email protected]
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package com.viaoa.jfc.editor.image.view;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.FocusEvent;
import java.awt.event.FocusListener;
import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;
import javax.swing.*;
/**
* Panel used to enter information for changing an image scale.
* @author vincevia
* see ScalePanelController controller for this panel.
*/
public abstract class ScalePanel extends JPanel {
private NumberTextField txtScalePercent, txtScaleWidth, txtScaleHeight;
private JLabel lblScaleDescription, lblScaleNewDescription;
private JButton cmdPerformScale;
private JButton cmdUseZoomScale;
public ScalePanel() {
super(new GridBagLayout());
GridBagConstraints gc = new GridBagConstraints();
gc.insets = new Insets(2, 1, 1, 2);
gc.anchor = gc.EAST;
add(new JLabel("Current Image:"), gc);
gc.anchor = gc.WEST;
gc.gridwidth = gc.REMAINDER;
gc.fill = gc.BOTH;
add(getScaleDescriptionLabel(), gc);
gc.gridwidth = 1;
gc.fill = gc.NONE;
Box box = new Box(BoxLayout.X_AXIS);
box.add(new JLabel("Scale:"));
box.add(getPercentTextField());
box.add(new JLabel("%"));
box.add(Box.createHorizontalStrut(6));
box.add(new JLabel("Width:"));
box.add(getWidthTextField());
box.add(Box.createHorizontalStrut(5));
box.add(new JLabel("Height:"));
box.add(getHeightTextField());
box.add(Box.createHorizontalStrut(5));
box.add(getUseZoomScaleCommand());
box.add(Box.createHorizontalStrut(5));
box.add(getScaleCommand());
box.add(Box.createHorizontalStrut(10));
gc.gridwidth = gc.REMAINDER;
add(box, gc);
gc.gridwidth = 1;
}
public NumberTextField getPercentTextField() {
if (txtScalePercent == null) {
txtScalePercent = new NumberTextField(3);
txtScalePercent.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
String s = txtScalePercent.getText();
if (s != null && s.length() > 0) {
int x = Integer.valueOf(s);
ScalePanel.this.onScalePercentChange(x);
}
}
});
txtScalePercent.addFocusListener(new FocusListener() {
@Override
public void focusLost(FocusEvent e) {
String s = txtScalePercent.getText();
if (s != null && s.length() > 0) {
int x = Integer.valueOf(s);
ScalePanel.this.onScalePercentChange(x);
}
}
@Override
public void focusGained(FocusEvent e) {
}
});
}
return txtScalePercent;
}
public NumberTextField getWidthTextField() {
if (txtScaleWidth == null) {
txtScaleWidth = new NumberTextField(3);
txtScaleWidth.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
int w = Integer.valueOf(txtScaleWidth.getText()).intValue();
ScalePanel.this.onWidthChange(w);
}
});
txtScaleWidth.addFocusListener(new FocusListener() {
@Override
public void focusLost(FocusEvent e) {
int w = Integer.valueOf(txtScaleWidth.getText()).intValue();
ScalePanel.this.onWidthChange(w);
}
@Override
public void focusGained(FocusEvent e) {
}
});
}
return txtScaleWidth;
}
public NumberTextField getHeightTextField() {
if (txtScaleHeight == null) {
txtScaleHeight = new NumberTextField(3);
txtScaleHeight.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
int h = Integer.valueOf(txtScaleHeight.getText()).intValue();
ScalePanel.this.onHeightChange(h);
}
});
txtScaleHeight.addFocusListener(new FocusListener() {
@Override
public void focusLost(FocusEvent e) {
int h = Integer.valueOf(txtScaleHeight.getText()).intValue();
ScalePanel.this.onHeightChange(h);
}
@Override
public void focusGained(FocusEvent e) {
}
});
}
return txtScaleHeight;
}
public JButton getScaleCommand() {
if (cmdPerformScale == null) {
cmdPerformScale = new JButton("Ok");
cmdPerformScale.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
ScalePanel.this.onScaleCommand();
}
});
String cmdName = "onClick";
cmdPerformScale.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).put(KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0,false), cmdName);
cmdPerformScale.getActionMap().put(cmdName, new AbstractAction() {
public void actionPerformed(ActionEvent e) {
onScaleCommand();
}
});
}
return cmdPerformScale;
}
public JButton getUseZoomScaleCommand() {
if (cmdUseZoomScale == null) {
cmdUseZoomScale = new JButton("Zoom Size");
cmdUseZoomScale.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
ScalePanel.this.onUseZoomScaleCommand();
}
});
cmdUseZoomScale.setToolTipText("use the currect zoom size as the new scale");
}
return cmdUseZoomScale;
}
public JLabel getScaleDescriptionLabel() {
if (lblScaleDescription == null) {
lblScaleDescription = new JLabel(" ");
lblScaleDescription.setOpaque(false);
}
return lblScaleDescription;
}
public JLabel getScaleNewDescriptionLabel() {
if (lblScaleNewDescription == null) {
lblScaleNewDescription = new JLabel(" ");
lblScaleNewDescription.setOpaque(false);
}
return lblScaleNewDescription;
}
/**
* called when one of the NumberTextFields are changed.
*/
protected abstract void onScaleCommand();
protected abstract void onUseZoomScaleCommand();
protected abstract void onScalePercentChange(int zoom);
protected abstract void onWidthChange(int newWidth);
protected abstract void onHeightChange(int newHeight);
}