1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
/*******************************************************************************
* Copyright (c) 2000, 2015 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.swt.examples.paint;
import static org.eclipse.swt.events.SelectionListener.widgetSelectedAdapter;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.MouseEvent;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
/**
* A text drawing tool.
*/
public class TextTool extends BasicPaintSession implements PaintTool {
private ToolSettings settings;
private String drawText = PaintExample.getResourceString("tool.Text.settings.defaulttext");
/**
* Constructs a PaintTool.
*
* @param toolSettings the new tool settings
* @param paintSurface the PaintSurface we will render on.
*/
public TextTool(ToolSettings toolSettings, PaintSurface paintSurface) {
super(paintSurface);
set(toolSettings);
}
/**
* Sets the tool's settings.
*
* @param toolSettings the new tool settings
*/
@Override
public void set(ToolSettings toolSettings) {
settings = toolSettings;
}
/**
* Returns name associated with this tool.
*
* @return the localized name of this tool
*/
@Override
public String getDisplayName() {
return PaintExample.getResourceString("tool.Text.label");
}
/**
* Activates the tool.
*/
@Override
public void beginSession() {
getPaintSurface().setStatusMessage(PaintExample.getResourceString(
"session.Text.message"));
}
/**
* Deactivates the tool.
*/
@Override
public void endSession() {
getPaintSurface().clearRubberbandSelection();
}
/**
* Aborts the current operation.
*/
@Override
public void resetSession() {
getPaintSurface().clearRubberbandSelection();
}
/**
* Handles a mouseDown event.
*
* @param event the mouse event detail information
*/
@Override
public void mouseDown(MouseEvent event) {
if (event.button == 1) {
// draw with left mouse button
getPaintSurface().commitRubberbandSelection();
} else {
// set text with right mouse button
getPaintSurface().clearRubberbandSelection();
Shell shell = getPaintSurface().getShell();
final Shell dialog = new Shell(shell, SWT.DIALOG_TRIM | SWT.APPLICATION_MODAL);
dialog.setText(PaintExample.getResourceString("tool.Text.dialog.title"));
dialog.setLayout(new GridLayout());
Label label = new Label(dialog, SWT.NONE);
label.setText(PaintExample.getResourceString("tool.Text.dialog.message"));
label.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false));
final Text field = new Text(dialog, SWT.SINGLE | SWT.BORDER);
field.setText(drawText);
field.selectAll();
field.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));
Composite buttons = new Composite(dialog, SWT.NONE);
GridLayout layout = new GridLayout(2, true);
layout.marginWidth = 0;
buttons.setLayout(layout);
buttons.setLayoutData(new GridData(SWT.END, SWT.CENTER, false, false));
Button ok = new Button(buttons, SWT.PUSH);
ok.setText(PaintExample.getResourceString("OK"));
ok.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false));
ok.addSelectionListener(widgetSelectedAdapter(e -> {
drawText = field.getText();
dialog.dispose();
}));
Button cancel = new Button(buttons, SWT.PUSH);
cancel.setText(PaintExample.getResourceString("Cancel"));
cancel.addSelectionListener(widgetSelectedAdapter(e -> dialog.dispose()));
dialog.setDefaultButton(ok);
dialog.pack();
dialog.open();
Display display = dialog.getDisplay();
while (! shell.isDisposed() && ! dialog.isDisposed()) {
if (! display.readAndDispatch()) display.sleep();
}
}
}
/**
* Handles a mouseDoubleClick event.
*
* @param event the mouse event detail information
*/
@Override
public void mouseDoubleClick(MouseEvent event) {
}
/**
* Handles a mouseUp event.
*
* @param event the mouse event detail information
*/
@Override
public void mouseUp(MouseEvent event) {
}
/**
* Handles a mouseMove event.
*
* @param event the mouse event detail information
*/
@Override
public void mouseMove(MouseEvent event) {
final PaintSurface ps = getPaintSurface();
ps.setStatusCoord(ps.getCurrentPosition());
ps.clearRubberbandSelection();
ps.addRubberbandSelection(
new TextFigure(settings.commonForegroundColor, settings.commonFont,
drawText, event.x, event.y));
}
}
|
