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
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
|
/**
* @file llresizebar.cpp
* @brief LLResizeBar base class
*
* $LicenseInfo:firstyear=2001&license=viewergpl$
*
* Copyright (c) 2001-2008, Linden Research, Inc.
*
* Second Life Viewer Source Code
* The source code in this file ("Source Code") is provided by Linden Lab
* to you under the terms of the GNU General Public License, version 2.0
* ("GPL"), unless you have obtained a separate licensing agreement
* ("Other License"), formally executed by you and Linden Lab. Terms of
* the GPL can be found in doc/GPL-license.txt in this distribution, or
* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
*
* There are special exceptions to the terms and conditions of the GPL as
* it is applied to this Source Code. View the full text of the exception
* in the file doc/FLOSS-exception.txt in this software distribution, or
* online at http://secondlifegrid.net/programs/open_source/licensing/flossexception
*
* By copying, modifying or distributing this software, you acknowledge
* that you have read and understood your obligations described above,
* and agree to abide by those obligations.
*
* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
* COMPLETENESS OR PERFORMANCE.
* $/LicenseInfo$
*/
#include "linden_common.h"
#include "llresizebar.h"
#include "llmath.h"
#include "llui.h"
#include "llmenugl.h"
#include "llfocusmgr.h"
#include "llwindow.h"
LLResizeBar::LLResizeBar( const std::string& name, LLView* resizing_view, const LLRect& rect, S32 min_size, S32 max_size, Side side )
:
LLView( name, rect, TRUE ),
mDragLastScreenX( 0 ),
mDragLastScreenY( 0 ),
mLastMouseScreenX( 0 ),
mLastMouseScreenY( 0 ),
mMinSize( min_size ),
mMaxSize( max_size ),
mSide( side ),
mSnappingEnabled(TRUE),
mAllowDoubleClickSnapping(TRUE),
mResizingView(resizing_view)
{
// set up some generically good follow code.
switch( side )
{
case LEFT:
setFollowsLeft();
setFollowsTop();
setFollowsBottom();
break;
case TOP:
setFollowsTop();
setFollowsLeft();
setFollowsRight();
break;
case RIGHT:
setFollowsRight();
setFollowsTop();
setFollowsBottom();
break;
case BOTTOM:
setFollowsBottom();
setFollowsLeft();
setFollowsRight();
break;
default:
break;
}
// this is just a decorator
setSaveToXML(FALSE);
}
BOOL LLResizeBar::handleMouseDown(S32 x, S32 y, MASK mask)
{
// Route future Mouse messages here preemptively. (Release on mouse up.)
// No handler needed for focus lost since this clas has no state that depends on it.
gFocusMgr.setMouseCapture( this );
localPointToScreen(x, y, &mDragLastScreenX, &mDragLastScreenY);
mLastMouseScreenX = mDragLastScreenX;
mLastMouseScreenY = mDragLastScreenY;
return TRUE;
}
BOOL LLResizeBar::handleMouseUp(S32 x, S32 y, MASK mask)
{
BOOL handled = FALSE;
if( hasMouseCapture() )
{
// Release the mouse
gFocusMgr.setMouseCapture( NULL );
handled = TRUE;
}
else
{
handled = TRUE;
}
return handled;
}
BOOL LLResizeBar::handleHover(S32 x, S32 y, MASK mask)
{
BOOL handled = FALSE;
// We only handle the click if the click both started and ended within us
if( hasMouseCapture() )
{
S32 screen_x;
S32 screen_y;
localPointToScreen(x, y, &screen_x, &screen_y);
S32 delta_x = screen_x - mDragLastScreenX;
S32 delta_y = screen_y - mDragLastScreenY;
LLCoordGL mouse_dir;
// use hysteresis on mouse motion to preserve user intent when mouse stops moving
mouse_dir.mX = (screen_x == mLastMouseScreenX) ? mLastMouseDir.mX : screen_x - mLastMouseScreenX;
mouse_dir.mY = (screen_y == mLastMouseScreenY) ? mLastMouseDir.mY : screen_y - mLastMouseScreenY;
mLastMouseDir = mouse_dir;
mLastMouseScreenX = screen_x;
mLastMouseScreenY = screen_y;
// Make sure the mouse in still over the application. We don't want to make the parent
// so big that we can't see the resize handle any more.
LLRect valid_rect = getRootView()->getRect();
if( valid_rect.localPointInRect( screen_x, screen_y ) && mResizingView )
{
// Resize the parent
LLRect orig_rect = mResizingView->getRect();
LLRect scaled_rect = orig_rect;
S32 new_width = orig_rect.getWidth();
S32 new_height = orig_rect.getHeight();
switch( mSide )
{
case LEFT:
new_width = llclamp(orig_rect.getWidth() - delta_x, mMinSize, mMaxSize);
delta_x = orig_rect.getWidth() - new_width;
scaled_rect.translate(delta_x, 0);
break;
case TOP:
new_height = llclamp(orig_rect.getHeight() + delta_y, mMinSize, mMaxSize);
delta_y = new_height - orig_rect.getHeight();
break;
case RIGHT:
new_width = llclamp(orig_rect.getWidth() + delta_x, mMinSize, mMaxSize);
delta_x = new_width - orig_rect.getWidth();
break;
case BOTTOM:
new_height = llclamp(orig_rect.getHeight() - delta_y, mMinSize, mMaxSize);
delta_y = orig_rect.getHeight() - new_height;
scaled_rect.translate(0, delta_y);
break;
}
scaled_rect.mTop = scaled_rect.mBottom + new_height;
scaled_rect.mRight = scaled_rect.mLeft + new_width;
mResizingView->setRect(scaled_rect);
LLView* snap_view = NULL;
if (mSnappingEnabled)
{
switch( mSide )
{
case LEFT:
snap_view = mResizingView->findSnapEdge(scaled_rect.mLeft, mouse_dir, SNAP_LEFT, SNAP_PARENT_AND_SIBLINGS, LLUI::sConfigGroup->getS32("SnapMargin"));
break;
case TOP:
snap_view = mResizingView->findSnapEdge(scaled_rect.mTop, mouse_dir, SNAP_TOP, SNAP_PARENT_AND_SIBLINGS, LLUI::sConfigGroup->getS32("SnapMargin"));
break;
case RIGHT:
snap_view = mResizingView->findSnapEdge(scaled_rect.mRight, mouse_dir, SNAP_RIGHT, SNAP_PARENT_AND_SIBLINGS, LLUI::sConfigGroup->getS32("SnapMargin"));
break;
case BOTTOM:
snap_view = mResizingView->findSnapEdge(scaled_rect.mBottom, mouse_dir, SNAP_BOTTOM, SNAP_PARENT_AND_SIBLINGS, LLUI::sConfigGroup->getS32("SnapMargin"));
break;
}
}
// register "snap" behavior with snapped view
mResizingView->snappedTo(snap_view);
// restore original rectangle so the appropriate changes are detected
mResizingView->setRect(orig_rect);
// change view shape as user operation
mResizingView->userSetShape(scaled_rect);
// update last valid mouse cursor position based on resized view's actual size
LLRect new_rect = mResizingView->getRect();
switch(mSide)
{
case LEFT:
mDragLastScreenX += new_rect.mLeft - orig_rect.mLeft;
break;
case RIGHT:
mDragLastScreenX += new_rect.mRight - orig_rect.mRight;
break;
case TOP:
mDragLastScreenY += new_rect.mTop - orig_rect.mTop;
break;
case BOTTOM:
mDragLastScreenY += new_rect.mBottom- orig_rect.mBottom;
break;
default:
break;
}
}
handled = TRUE;
}
else
{
handled = TRUE;
}
if( handled )
{
switch( mSide )
{
case LEFT:
case RIGHT:
getWindow()->setCursor(UI_CURSOR_SIZEWE);
break;
case TOP:
case BOTTOM:
getWindow()->setCursor(UI_CURSOR_SIZENS);
break;
}
}
return handled;
} // end LLResizeBar::handleHover
BOOL LLResizeBar::handleDoubleClick(S32 x, S32 y, MASK mask)
{
LLRect orig_rect = mResizingView->getRect();
LLRect scaled_rect = orig_rect;
if (mSnappingEnabled && mAllowDoubleClickSnapping)
{
switch( mSide )
{
case LEFT:
mResizingView->findSnapEdge(scaled_rect.mLeft, LLCoordGL(0, 0), SNAP_LEFT, SNAP_PARENT_AND_SIBLINGS, S32_MAX);
scaled_rect.mLeft = scaled_rect.mRight - llclamp(scaled_rect.getWidth(), mMinSize, mMaxSize);
break;
case TOP:
mResizingView->findSnapEdge(scaled_rect.mTop, LLCoordGL(0, 0), SNAP_TOP, SNAP_PARENT_AND_SIBLINGS, S32_MAX);
scaled_rect.mTop = scaled_rect.mBottom + llclamp(scaled_rect.getHeight(), mMinSize, mMaxSize);
break;
case RIGHT:
mResizingView->findSnapEdge(scaled_rect.mRight, LLCoordGL(0, 0), SNAP_RIGHT, SNAP_PARENT_AND_SIBLINGS, S32_MAX);
scaled_rect.mRight = scaled_rect.mLeft + llclamp(scaled_rect.getWidth(), mMinSize, mMaxSize);
break;
case BOTTOM:
mResizingView->findSnapEdge(scaled_rect.mBottom, LLCoordGL(0, 0), SNAP_BOTTOM, SNAP_PARENT_AND_SIBLINGS, S32_MAX);
scaled_rect.mBottom = scaled_rect.mTop - llclamp(scaled_rect.getHeight(), mMinSize, mMaxSize);
break;
}
mResizingView->userSetShape(scaled_rect);
}
return TRUE;
}
|
