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
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
|
/**
* @file llslider.cpp
* @brief LLSlider base class
*
* Copyright (c) 2002-2007, 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://secondlife.com/developers/opensource/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://secondlife.com/developers/opensource/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.
*/
#include "linden_common.h"
#include "llslider.h"
#include "llui.h"
#include "llgl.h"
#include "llwindow.h"
#include "llfocusmgr.h"
#include "llkeyboard.h" // for the MASK constants
#include "llcontrol.h"
#include "llimagegl.h"
const S32 THUMB_WIDTH = 8;
const S32 TRACK_HEIGHT = 6;
LLSlider::LLSlider(
const LLString& name,
const LLRect& rect,
void (*on_commit_callback)(LLUICtrl* ctrl, void* userdata),
void* callback_userdata,
F32 initial_value,
F32 min_value,
F32 max_value,
F32 increment,
const LLString& control_name)
:
LLUICtrl( name, rect, TRUE, on_commit_callback, callback_userdata,
FOLLOWS_LEFT | FOLLOWS_TOP),
mValue( initial_value ),
mInitialValue( initial_value ),
mMinValue( min_value ),
mMaxValue( max_value ),
mIncrement( increment ),
mMouseOffset( 0 ),
mDragStartThumbRect( 0, mRect.getHeight(), THUMB_WIDTH, 0 ),
mThumbRect( 0, mRect.getHeight(), THUMB_WIDTH, 0 ),
mTrackColor( LLUI::sColorsGroup->getColor( "SliderTrackColor" ) ),
mThumbOutlineColor( LLUI::sColorsGroup->getColor( "SliderThumbOutlineColor" ) ),
mThumbCenterColor( LLUI::sColorsGroup->getColor( "SliderThumbCenterColor" ) ),
mDisabledThumbColor(LLUI::sColorsGroup->getColor( "SliderDisabledThumbColor" ) ),
mMouseDownCallback( NULL ),
mMouseUpCallback( NULL )
{
// prperly handle setting the starting thumb rect
// do it this way to handle both the operating-on-settings
// and standalone ways of using this
setControlName(control_name, NULL);
setValue(getValueF32());
}
EWidgetType LLSlider::getWidgetType() const
{
return WIDGET_TYPE_SLIDER_BAR;
}
LLString LLSlider::getWidgetTag() const
{
return LL_SLIDER_TAG;
}
void LLSlider::setValue(F32 value, BOOL from_event)
{
value = llclamp( value, mMinValue, mMaxValue );
// Round to nearest increment (bias towards rounding down)
value -= mMinValue;
value += mIncrement/2.0001f;
value -= fmod(value, mIncrement);
mValue = mMinValue + value;
if (!from_event)
{
setControlValue(mValue);
}
F32 t = (mValue - mMinValue) / (mMaxValue - mMinValue);
S32 left_edge = THUMB_WIDTH/2;
S32 right_edge = mRect.getWidth() - (THUMB_WIDTH/2);
S32 x = left_edge + S32( t * (right_edge - left_edge) );
mThumbRect.mLeft = x - (THUMB_WIDTH/2);
mThumbRect.mRight = x + (THUMB_WIDTH/2);
}
F32 LLSlider::getValueF32() const
{
return mValue;
}
BOOL LLSlider::handleHover(S32 x, S32 y, MASK mask)
{
if( hasMouseCapture() )
{
S32 left_edge = THUMB_WIDTH/2;
S32 right_edge = mRect.getWidth() - (THUMB_WIDTH/2);
x += mMouseOffset;
x = llclamp( x, left_edge, right_edge );
F32 t = F32(x - left_edge) / (right_edge - left_edge);
setValue(t * (mMaxValue - mMinValue) + mMinValue );
onCommit();
getWindow()->setCursor(UI_CURSOR_ARROW);
lldebugst(LLERR_USER_INPUT) << "hover handled by " << getName() << " (active)" << llendl;
}
else
{
getWindow()->setCursor(UI_CURSOR_ARROW);
lldebugst(LLERR_USER_INPUT) << "hover handled by " << getName() << " (inactive)" << llendl;
}
return TRUE;
}
BOOL LLSlider::handleMouseUp(S32 x, S32 y, MASK mask)
{
BOOL handled = FALSE;
if( hasMouseCapture() )
{
gFocusMgr.setMouseCapture( NULL );
if( mMouseUpCallback )
{
mMouseUpCallback( this, mCallbackUserData );
}
handled = TRUE;
make_ui_sound("UISndClickRelease");
}
else
{
handled = TRUE;
}
return handled;
}
BOOL LLSlider::handleMouseDown(S32 x, S32 y, MASK mask)
{
// only do sticky-focus on non-chrome widgets
if (!getIsChrome())
{
setFocus(TRUE);
}
if( mMouseDownCallback )
{
mMouseDownCallback( this, mCallbackUserData );
}
if (MASK_CONTROL & mask) // if CTRL is modifying
{
setValue(mInitialValue);
onCommit();
}
else
{
// Find the offset of the actual mouse location from the center of the thumb.
if (mThumbRect.pointInRect(x,y))
{
mMouseOffset = (mThumbRect.mLeft + THUMB_WIDTH/2) - x;
}
else
{
mMouseOffset = 0;
}
// Start dragging the thumb
// No handler needed for focus lost since this class has no state that depends on it.
gFocusMgr.setMouseCapture( this );
mDragStartThumbRect = mThumbRect;
}
make_ui_sound("UISndClick");
return TRUE;
}
BOOL LLSlider::handleKeyHere(KEY key, MASK mask, BOOL called_from_parent)
{
BOOL handled = FALSE;
if( getVisible() && mEnabled && !called_from_parent )
{
switch(key)
{
case KEY_UP:
case KEY_DOWN:
// eat up and down keys to be consistent
handled = TRUE;
break;
case KEY_LEFT:
setValue(getValueF32() - getIncrement());
onCommit();
handled = TRUE;
break;
case KEY_RIGHT:
setValue(getValueF32() + getIncrement());
onCommit();
handled = TRUE;
break;
default:
break;
}
}
return handled;
}
void LLSlider::draw()
{
if( getVisible() )
{
// Draw background and thumb.
// drawing solids requires texturing be disabled
LLGLSNoTexture no_texture;
LLRect rect(mDragStartThumbRect);
F32 opacity = mEnabled ? 1.f : 0.3f;
// Track
LLUUID thumb_image_id;
thumb_image_id.set(LLUI::sAssetsGroup->getString("rounded_square.tga"));
LLImageGL* thumb_imagep = LLUI::sImageProvider->getUIImageByID(thumb_image_id);
S32 height_offset = (mRect.getHeight() - TRACK_HEIGHT) / 2;
LLRect track_rect(0, mRect.getHeight() - height_offset, mRect.getWidth(), height_offset );
track_rect.stretch(-1);
gl_draw_scaled_image_with_border(track_rect.mLeft, track_rect.mBottom, 16, 16, track_rect.getWidth(), track_rect.getHeight(),
thumb_imagep, mTrackColor % opacity);
//gl_rect_2d( track_rect, mThumbOutlineColor % opacity );
if (!thumb_imagep)
{
gl_rect_2d(mThumbRect, mThumbCenterColor, TRUE);
if (hasMouseCapture())
{
gl_rect_2d(mDragStartThumbRect, mThumbCenterColor % opacity, FALSE);
}
}
else if( hasMouseCapture() )
{
gl_draw_scaled_image_with_border(mDragStartThumbRect.mLeft, mDragStartThumbRect.mBottom, 16, 16, mDragStartThumbRect.getWidth(), mDragStartThumbRect.getHeight(),
thumb_imagep, mThumbCenterColor % 0.3f, TRUE);
if (hasFocus())
{
F32 lerp_amt = gFocusMgr.getFocusFlashAmt();
LLRect highlight_rect = mThumbRect;
highlight_rect.stretch(llround(lerp(1.f, 3.f, lerp_amt)));
gl_draw_scaled_image_with_border(highlight_rect.mLeft, highlight_rect.mBottom, 16, 16, highlight_rect.getWidth(), highlight_rect.getHeight(),
thumb_imagep, gFocusMgr.getFocusColor());
}
gl_draw_scaled_image_with_border(mThumbRect.mLeft, mThumbRect.mBottom, 16, 16, mThumbRect.getWidth(), mThumbRect.getHeight(),
thumb_imagep, mThumbOutlineColor, TRUE);
//// Start Thumb
//gl_rect_2d( mDragStartThumbRect, mThumbOutlineColor % 0.3f );
//rect.stretch(-1);
//gl_rect_2d( rect, mThumbCenterColor % 0.3f );
//// Thumb
//gl_rect_2d( mThumbRect, mThumbOutlineColor );
}
else
{
if (hasFocus())
{
F32 lerp_amt = gFocusMgr.getFocusFlashAmt();
LLRect highlight_rect = mThumbRect;
highlight_rect.stretch(llround(lerp(1.f, 3.f, lerp_amt)));
gl_draw_scaled_image_with_border(highlight_rect.mLeft, highlight_rect.mBottom, 16, 16, highlight_rect.getWidth(), highlight_rect.getHeight(),
thumb_imagep, gFocusMgr.getFocusColor());
}
gl_draw_scaled_image_with_border(mThumbRect.mLeft, mThumbRect.mBottom, 16, 16, mThumbRect.getWidth(), mThumbRect.getHeight(),
thumb_imagep, mThumbCenterColor % opacity, TRUE);
//rect = mThumbRect;
//gl_rect_2d( mThumbRect, mThumbOutlineColor % opacity );
//
//rect.stretch(-1);
//// Thumb
//gl_rect_2d( rect, mThumbCenterColor % opacity );
}
LLUICtrl::draw();
}
}
// virtual
LLXMLNodePtr LLSlider::getXML(bool save_children) const
{
LLXMLNodePtr node = LLUICtrl::getXML();
node->createChild("initial_val", TRUE)->setFloatValue(getInitialValue());
node->createChild("min_val", TRUE)->setFloatValue(getMinValue());
node->createChild("max_val", TRUE)->setFloatValue(getMaxValue());
node->createChild("increment", TRUE)->setFloatValue(getIncrement());
return node;
}
//static
LLView* LLSlider::fromXML(LLXMLNodePtr node, LLView *parent, LLUICtrlFactory *factory)
{
LLString name("slider_bar");
node->getAttributeString("name", name);
LLRect rect;
createRect(node, rect, parent, LLRect());
F32 initial_value = 0.f;
node->getAttributeF32("initial_val", initial_value);
F32 min_value = 0.f;
node->getAttributeF32("min_val", min_value);
F32 max_value = 1.f;
node->getAttributeF32("max_val", max_value);
F32 increment = 0.1f;
node->getAttributeF32("increment", increment);
LLSlider* slider = new LLSlider(name,
rect,
NULL,
NULL,
initial_value,
min_value,
max_value,
increment);
slider->initFromXML(node, parent);
return slider;
}
|