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
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
|
package org.eclipse.swt.widgets;
/*
* Licensed Materials - Property of IBM,
* (c) Copyright IBM Corp. 1998, 2001 All Rights Reserved
*/
import org.eclipse.swt.internal.photon.*;
import org.eclipse.swt.*;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.events.*;
public /*final*/ class Sash extends Control {
boolean dragging;
int startX, startY, lastX, lastY;
public Sash (Composite parent, int style) {
super (parent, checkStyle (style));
}
static int checkStyle (int style) {
return checkBits (style, SWT.HORIZONTAL, SWT.VERTICAL, 0, 0, 0, 0);
}
public void addSelectionListener (SelectionListener listener) {
if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
TypedListener typedListener = new TypedListener (listener);
addListener (SWT.Selection,typedListener);
addListener (SWT.DefaultSelection,typedListener);
}
public Point computeSize (int wHint, int hHint, boolean changed) {
if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
int border = getBorderWidth ();
int width = border * 2, height = border * 2;
if ((style & SWT.HORIZONTAL) != 0) {
width += DEFAULT_WIDTH; height += 3;
} else {
width += 3; height += DEFAULT_HEIGHT;
}
if (wHint != SWT.DEFAULT) width = wHint + (border * 2);
if (hHint != SWT.DEFAULT) height = hHint + (border * 2);
return new Point (width, height);
}
void createHandle (int index) {
Display display = getDisplay ();
int clazz = display.PtContainer;
int parentHandle = parent.handle;
int cursor = ((style & SWT.HORIZONTAL) != 0) ? OS.Ph_CURSOR_DRAG_VERTICAL : OS.Ph_CURSOR_DRAG_HORIZONTAL;
int [] args = {
OS.Pt_ARG_CURSOR_TYPE, cursor, 0,
OS.Pt_ARG_RESIZE_FLAGS, 0, OS.Pt_RESIZE_XY_BITS,
};
handle = OS.PtCreateWidget (clazz, parentHandle, args.length / 3, args);
if (handle == 0) error (SWT.ERROR_NO_HANDLES);
}
void drawBand (int x, int y, int width, int height) {
if (parent == null) return;
if (parent.isDisposed ()) return;
int parentHandle = parent.handle;
if (!OS.PtWidgetIsRealized (parentHandle)) return;
int phGC = OS.PgCreateGC (0); // NOTE: PgCreateGC ignores the parameter
if (phGC == 0) return;
int [] args = {OS.Pt_ARG_COLOR, 0, 0, OS.Pt_ARG_FILL_COLOR, 0, 0};
OS.PtGetResources (handle, args.length / 3, args);
int foreground = args [1];
int background = args [4];
int color = foreground ^ ~background;
int prevContext = OS.PgSetGC (phGC);
OS.PgSetRegion (OS.PtWidgetRid (parentHandle));
OS.PgSetDrawMode (OS.Pg_DRAWMODE_XOR);
OS.PgSetFillColor (color);
OS.PgDrawIRect (x, y, x + width - 1, y + height - 1, OS.Pg_DRAW_FILL);
OS.PgSetGC (prevContext);
OS.PgDestroyGC (phGC);
}
int processMouse (int info) {
int result = super.processMouse (info);
if (info == 0) return OS.Pt_END;
PtCallbackInfo_t cbinfo = new PtCallbackInfo_t ();
OS.memmove (cbinfo, info, PtCallbackInfo_t.sizeof);
if (cbinfo.event == 0) return OS.Pt_END;
PhEvent_t ev = new PhEvent_t ();
OS.memmove (ev, cbinfo.event, PhEvent_t.sizeof);
int data = OS.PhGetData (cbinfo.event);
if (data == 0) return OS.Pt_END;
PhPointerEvent_t pe = new PhPointerEvent_t ();
OS.memmove (pe, data, PhPointerEvent_t.sizeof);
if (pe.buttons != OS.Ph_BUTTON_SELECT) return result;
int x = pe.pos_x + ev.translation_x;
int y = pe.pos_y + ev.translation_y;
PhArea_t area = new PhArea_t();
OS.PtWidgetArea (handle, area);
Event event = new Event ();
int width = event.width = area.size_w;
int height = event.height = area.size_h;
switch (ev.type) {
case OS.Ph_EV_BUT_PRESS:
PhRect_t rect = new PhRect_t ();
PhPoint_t pos = new PhPoint_t();
pos.x = pe.pos_x;
pos.y = pe.pos_y;
rect.ul_x = rect.lr_x = (short) (pos.x + ev.translation_x);
rect.ul_y = rect.lr_y = (short) (pos.y + ev.translation_y);
int rid = OS.PtWidgetRid (handle);
int input_group = OS.PhInputGroup (cbinfo.event);
// int input_group = OS.PhInputGroup (0);
OS.PhInitDrag (rid, OS.Ph_DRAG_KEY_MOTION | OS.Ph_DRAG_TRACK | OS.Ph_TRACK_DRAG, rect, null, input_group, null, null, null, pos, null);
/* Compute the banding rectangle */
startX = x;
startY = y;
lastX = area.pos_x;
lastY = area.pos_y;
/* The event must be sent because doit flag is used */
event.x = lastX; event.y = lastY;
event.detail = SWT.DRAG;
/*
* It is possible (but unlikely), that application
* code could have disposed the widget in the selection
* event. If this happens, end the processing of the
* Windows message by returning zero as the result of
* the window proc.
*/
sendEvent (SWT.Selection, event);
if (isDisposed ()) return OS.Pt_END;
/* Draw the banding rectangle */
if (event.doit) {
dragging = true;
menuShell ().bringToTop ();
OS.PtFlush ();
drawBand (lastX = event.x, lastY = event.y, width, height);
}
break;
case OS.Ph_EV_BUT_RELEASE:
if (ev.subtype != OS.Ph_EV_RELEASE_PHANTOM) {
return result;
}
/* Compute the banding rectangle */
if (!dragging) return result;
dragging = false;
/* The event must be sent because doit flag is used */
event.x = lastX; event.y = lastY;
drawBand (lastX, lastY, width, height);
sendEvent (SWT.Selection, event);
// widget could be disposed at this point
break;
case OS.Ph_EV_PTR_MOTION_BUTTON:
case OS.Ph_EV_PTR_MOTION_NOBUTTON:
case OS.Ph_EV_DRAG:
if (ev.subtype != OS.Ph_EV_DRAG_MOTION_EVENT) {
return result;
}
if (!dragging) return result;
/* Compute the banding rectangle */
x += area.pos_x;
y += area.pos_y;
int parentHandle = parent.handle;
rect = new PhRect_t ();
int vParent = OS.PtValidParent (handle, OS.PtContainer ());
OS.PtCalcCanvas (vParent, rect);
int clientWidth = rect.lr_x - rect.ul_x + 1;
int clientHeight = rect.lr_y - rect.ul_y + 1;
int newX = lastX, newY = lastY;
if ((style & SWT.VERTICAL) != 0) {
newX = Math.min (Math.max (0, x - startX), clientWidth - width);
} else {
newY = Math.min (Math.max (0, y - startY), clientHeight - height);
}
if ((newX == lastX) && (newY == lastY)) return result;
drawBand (lastX, lastY, width, height);
/* The event must be sent because doit flag is used */
event.x = newX; event.y = newY;
event.detail = SWT.DRAG;
/*
* It is possible (but unlikely), that application
* code could have disposed the widget in the selection
* event. If this happens, end the processing of the
* Windows message by returning zero as the result of
* the window proc.
*/
sendEvent (SWT.Selection, event);
if (isDisposed ()) return OS.Pt_END;
/* Draw the banding rectangle */
if (event.doit) {
lastX = event.x; lastY = event.y;
OS.PtFlush ();
drawBand (lastX, lastY, width, height);
}
break;
}
return result;
}
int processPaint (int damage) {
OS.PtSuperClassDraw (OS.PtContainer (), handle, damage);
sendPaintEvent (damage);
return OS.Pt_CONTINUE;
}
public void removeSelectionListener(SelectionListener listener) {
if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
if (eventTable == null) return;
eventTable.unhook (SWT.Selection, listener);
eventTable.unhook (SWT.DefaultSelection,listener);
}
}
|
