summaryrefslogtreecommitdiffstats
path: root/kalarm/lib/spinbox2.cpp
blob: 5572cb9531d83748dd5b8d1f9de4528a2027f9bd (plain)
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
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
/*
 *  spinbox2.cpp  -  spin box with extra pair of spin buttons (for TQt 3)
 *  Program:  kalarm
 *  Copyright © 2001-2005,2008 by David Jarvie <djarvie@kde.org>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License along
 *  with this program; if not, write to the Free Software Foundation, Inc.,
 *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 */

#include <tqglobal.h>

#include <stdlib.h>

#include <tqstyle.h>
#include <tqobjectlist.h>
#include <tqapplication.h>
#include <tqpixmap.h>
#include <tqcursor.h>
#include <tqtimer.h>
#include <tqwmatrix.h>

#include "spinbox2.moc"
#include "spinbox2private.moc"


/*  List of styles which need to display the extra pair of spin buttons as a
 *  left-to-right mirror image. This is only necessary when, for example, the
 *  corners of widgets are rounded. For most styles, it is better not to mirror
 *  the spin widgets so as to keep the normal lighting/shading on either side.
 */
static const char* mirrorStyles[] = {
	"PlastikStyle",
	0     // list terminator
};
static bool mirrorStyle(const TQStyle&);


int SpinBox2::mReverseLayout = -1;

SpinBox2::SpinBox2(TQWidget* parent, const char* name)
	: TQFrame(parent, name),
	  mReverseWithLayout(true)
{
	mUpdown2Frame = new TQFrame(this);
	mSpinboxFrame = new TQFrame(this);
	mUpdown2 = new ExtraSpinBox(mUpdown2Frame, "updown2");
//	mSpinbox = new MainSpinBox(0, 1, 1, this, mSpinboxFrame);
	mSpinbox = new MainSpinBox(this, mSpinboxFrame);
	init();
}

SpinBox2::SpinBox2(int minValue, int maxValue, int step, int step2, TQWidget* parent, const char* name)
	: TQFrame(parent, name),
	  mReverseWithLayout(true)
{
	mUpdown2Frame = new TQFrame(this);
	mSpinboxFrame = new TQFrame(this);
	mUpdown2 = new ExtraSpinBox(minValue, maxValue, step2, mUpdown2Frame, "updown2");
	mSpinbox = new MainSpinBox(minValue, maxValue, step, this, mSpinboxFrame);
	setSteps(step, step2);
	init();
}

void SpinBox2::init()
{
	if (mReverseLayout < 0)
		mReverseLayout = TQApplication::reverseLayout() ? 1 : 0;
	mMinValue      = mSpinbox->minValue();
	mMaxValue      = mSpinbox->maxValue();
	mLineStep      = mSpinbox->lineStep();
	mLineShiftStep = mSpinbox->lineShiftStep();
	mPageStep      = mUpdown2->lineStep();
	mPageShiftStep = mUpdown2->lineShiftStep();
	mSpinbox->setSelectOnStep(false);    // default
	mUpdown2->setSelectOnStep(false);    // always false
	setFocusProxy(mSpinbox);
	mUpdown2->setFocusPolicy(TQ_NoFocus);
	mSpinMirror = new SpinMirror(mUpdown2, mUpdown2Frame, this);
	if (!mirrorStyle(style()))
		mSpinMirror->hide();    // hide mirrored spin buttons when they are inappropriate
	connect(mSpinbox, TQT_SIGNAL(valueChanged(int)), TQT_SLOT(valueChange()));
	connect(mSpinbox, TQT_SIGNAL(valueChanged(int)), TQT_SIGNAL(valueChanged(int)));
	connect(mSpinbox, TQT_SIGNAL(valueChanged(const TQString&)), TQT_SIGNAL(valueChanged(const TQString&)));
	connect(mUpdown2, TQT_SIGNAL(stepped(int)), TQT_SLOT(stepPage(int)));
	connect(mUpdown2, TQT_SIGNAL(styleUpdated()), TQT_SLOT(updateMirror()));
}

void SpinBox2::setReadOnly(bool ro)
{
	if (static_cast<int>(ro) != static_cast<int>(mSpinbox->isReadOnly()))
	{
		mSpinbox->setReadOnly(ro);
		mUpdown2->setReadOnly(ro);
		mSpinMirror->setReadOnly(ro);
	}
}

void SpinBox2::setReverseWithLayout(bool reverse)
{
	if (reverse != mReverseWithLayout)
	{
		mReverseWithLayout = reverse;
		setSteps(mLineStep, mPageStep);
		setShiftSteps(mLineShiftStep, mPageShiftStep);
	}
}

void SpinBox2::setEnabled(bool enabled)
{
	TQFrame::setEnabled(enabled);
	updateMirror();
}

void SpinBox2::setWrapping(bool on)
{
	mSpinbox->setWrapping(on);
	mUpdown2->setWrapping(on);
}

TQRect SpinBox2::up2Rect() const
{
	return mUpdown2->upRect();
}

TQRect SpinBox2::down2Rect() const
{
	return mUpdown2->downRect();
}

void SpinBox2::setLineStep(int step)
{
	mLineStep = step;
	if (reverseButtons())
		mUpdown2->setLineStep(step);   // reverse layout, but still set the right buttons
	else
		mSpinbox->setLineStep(step);
}

void SpinBox2::setSteps(int line, int page)
{
	mLineStep = line;
	mPageStep = page;
	if (reverseButtons())
	{
		mUpdown2->setLineStep(line);   // reverse layout, but still set the right buttons
		mSpinbox->setLineStep(page);
	}
	else
	{
		mSpinbox->setLineStep(line);
		mUpdown2->setLineStep(page);
	}
}

void SpinBox2::setShiftSteps(int line, int page)
{
	mLineShiftStep = line;
	mPageShiftStep = page;
	if (reverseButtons())
	{
		mUpdown2->setLineShiftStep(line);   // reverse layout, but still set the right buttons
		mSpinbox->setLineShiftStep(page);
	}
	else
	{
		mSpinbox->setLineShiftStep(line);
		mUpdown2->setLineShiftStep(page);
	}
}

void SpinBox2::setButtonSymbols(TQSpinBox::ButtonSymbols newSymbols)
{
	if (mSpinbox->buttonSymbols() == newSymbols)
		return;
	mSpinbox->setButtonSymbols(newSymbols);
	mUpdown2->setButtonSymbols(newSymbols);
}

int SpinBox2::bound(int val) const
{
	return (val < mMinValue) ? mMinValue : (val > mMaxValue) ? mMaxValue : val;
}

void SpinBox2::setMinValue(int val)
{
	mMinValue = val;
	mSpinbox->setMinValue(val);
	mUpdown2->setMinValue(val);
}

void SpinBox2::setMaxValue(int val)
{
	mMaxValue = val;
	mSpinbox->setMaxValue(val);
	mUpdown2->setMaxValue(val);
}

void SpinBox2::valueChange()
{
	int val = mSpinbox->value();
	bool blocked = mUpdown2->signalsBlocked();
	mUpdown2->blockSignals(true);
	mUpdown2->setValue(val);
	mUpdown2->blockSignals(blocked);
}

/******************************************************************************
* Called when the widget is about to be displayed.
* (At construction time, the spin button widths cannot be determined correctly,
*  so we need to wait until now to definitively rearrange the widget.)
*/
void SpinBox2::showEvent(TQShowEvent*)
{
	arrange();
}

TQSize SpinBox2::sizeHint() const
{
	getMetrics();
	TQSize size = mSpinbox->sizeHint();
	size.setWidth(size.width() - xSpinbox + wUpdown2 + wGap);
	return size;
}

TQSize SpinBox2::minimumSizeHint() const
{
	getMetrics();
	TQSize size = mSpinbox->minimumSizeHint();
	size.setWidth(size.width() - xSpinbox + wUpdown2 + wGap);
	return size;
}

void SpinBox2::styleChange(TQStyle&)
{
	if (mirrorStyle(style()))
		mSpinMirror->show();    // show rounded corners with Plastik etc.
	else
		mSpinMirror->hide();    // keep normal shading with other styles
	arrange();
}

/******************************************************************************
* Called when the extra pair of spin buttons has repainted after a style change. 
* Updates the mirror image of the spin buttons.
*/
void SpinBox2::updateMirror()
{
	mSpinMirror->setNormalButtons(TQPixmap::grabWidget(mUpdown2Frame, 0, 0));
}

/******************************************************************************
* Set the positions and sizes of all the child widgets. 
*/
void SpinBox2::arrange()
{
	getMetrics();
	TQRect arrowRect = TQStyle::visualRect(TQRect(0, 0, wUpdown2, height()), this);
	mUpdown2Frame->setGeometry(arrowRect);
	mUpdown2->setGeometry(-xUpdown2, 0, mUpdown2->width(), height());
	mSpinboxFrame->setGeometry(TQStyle::visualRect(TQRect(wUpdown2 + wGap, 0, width() - wUpdown2 - wGap, height()), this));
	mSpinbox->setGeometry(-xSpinbox, 0, mSpinboxFrame->width() + xSpinbox, height());
	mSpinMirror->resize(wUpdown2, mUpdown2->height());
	mSpinMirror->setGeometry(arrowRect);
//mSpinMirror->setGeometry(TQStyle::visualRect(TQRect(0, 11, wUpdown2, height()), this));
	mSpinMirror->setNormalButtons(TQPixmap::grabWidget(mUpdown2Frame, 0, 0));
}

/******************************************************************************
* Calculate the width and position of the extra pair of spin buttons.
* Style-specific adjustments are made for a better appearance. 
*/
void SpinBox2::getMetrics() const
{
	TQRect rect = mUpdown2->style().querySubControlMetrics(TQStyle::CC_SpinWidget, mUpdown2, TQStyle::SC_SpinWidgetButtonField);
	if (style().inherits("PlastikStyle"))
		rect.setLeft(rect.left() - 1);    // Plastik excludes left border from spin widget rectangle
	xUpdown2 = mReverseLayout ? 0 : rect.left();
	wUpdown2 = mUpdown2->width() - rect.left();
	xSpinbox = mSpinbox->style().querySubControlMetrics(TQStyle::CC_SpinWidget, mSpinbox, TQStyle::SC_SpinWidgetEditField).left();
	wGap = 0;

	// Make style-specific adjustments for a better appearance
	if (style().inherits("TQMotifPlusStyle"))
	{
		xSpinbox = 0;      // show the edit control left border
		wGap = 2;          // leave a space to the right of the left-hand pair of spin buttons
	}
}

/******************************************************************************
* Called when the extra pair of spin buttons is clicked to step the value.
* Normally this is a page step, but with a right-to-left language where the
* button functions are reversed, this is a line step.
*/
void SpinBox2::stepPage(int step)
{
	if (abs(step) == mUpdown2->lineStep())
		mSpinbox->setValue(mUpdown2->value());
	else
	{
		// It's a shift step
		int oldValue = mSpinbox->value();
		if (!reverseButtons())
		{
			// The button pairs have the normal function.
			// Page shift stepping - step up or down to a multiple of the
			// shift page increment, leaving unchanged the part of the value
			// which is the remainder from the page increment.
			if (oldValue >= 0)
				oldValue -= oldValue % mUpdown2->lineStep();
			else
				oldValue += (-oldValue) % mUpdown2->lineStep();
		}
		int adjust = mSpinbox->shiftStepAdjustment(oldValue, step);
		if (adjust == -step
		&&  ((step > 0  &&  oldValue + step >= mSpinbox->maxValue())
		  || (step < 0  &&  oldValue + step <= mSpinbox->minValue())))
			adjust = 0;    // allow stepping to the minimum or maximum value
		mSpinbox->addValue(adjust + step);
	}
	bool focus = mSpinbox->selectOnStep() && mUpdown2->hasFocus();
	if (focus)
		mSpinbox->selectAll();

	// Make the covering arrows image show the pressed arrow
	mSpinMirror->redraw(TQPixmap::grabWidget(mUpdown2Frame, 0, 0));
}


/*=============================================================================
= Class SpinBox2::MainSpinBox
=============================================================================*/

/******************************************************************************
* Return the initial adjustment to the value for a shift step up or down, for
* the main (visible) spin box.
* Normally this is a line step, but with a right-to-left language where the
* button functions are reversed, this is a page step.
*/
int SpinBox2::MainSpinBox::shiftStepAdjustment(int oldValue, int shiftStep)
{
	if (owner->reverseButtons())
	{
		// The button pairs have the opposite function from normal.
		// Page shift stepping - step up or down to a multiple of the
		// shift page increment, leaving unchanged the part of the value
		// which is the remainder from the page increment.
		if (oldValue >= 0)
			oldValue -= oldValue % lineStep();
		else
			oldValue += (-oldValue) % lineStep();
	}
	return SpinBox::shiftStepAdjustment(oldValue, shiftStep);
}


/*=============================================================================
= Class ExtraSpinBox
=============================================================================*/

/******************************************************************************
* Repaint the widget.
* If it's the first time since a style change, tell the parent SpinBox2 to
* update the SpinMirror with the new unpressed button image. We make the
* presumably reasonable assumption that when a style change occurs, the spin
* buttons are unpressed.
*/
void ExtraSpinBox::paintEvent(TQPaintEvent* e)
{
	SpinBox::paintEvent(e);
	if (mNewStylePending)
	{
		mNewStylePending = false;
		emit styleUpdated();
	}
}


/*=============================================================================
= Class SpinMirror
=============================================================================*/

SpinMirror::SpinMirror(SpinBox* spinbox, TQFrame* spinFrame, TQWidget* parent, const char* name)
	: TQCanvasView(new TQCanvas, parent, name),
	  mSpinbox(spinbox),
	  mSpinFrame(spinFrame),
	  mReadOnly(false)
{
	setVScrollBarMode(TQScrollView::AlwaysOff);
	setHScrollBarMode(TQScrollView::AlwaysOff);
	setFrameStyle(TQFrame::NoFrame);

	// Find the spin widget which is part of the spin box, in order to
	// pass on its shift-button presses.
	TQObjectList* spinwidgets = spinbox->queryList("TQSpinWidget", 0, false, true);
	mSpinWidget = (SpinBox*)spinwidgets->getFirst();
	delete spinwidgets;
}

void SpinMirror::setNormalButtons(const TQPixmap& px)
{
	mNormalButtons = px;
	redraw(mNormalButtons);
}

void SpinMirror::redraw()
{
	redraw(TQPixmap::grabWidget(mSpinFrame, 0, 0));
}

void SpinMirror::redraw(const TQPixmap& px)
{
	TQCanvas* c = canvas();
	c->setBackgroundPixmap(px);
	c->setAllChanged();
	c->update();
}

void SpinMirror::resize(int w, int h)
{
	canvas()->resize(w, h);
	TQCanvasView::resize(w, h);
	resizeContents(w, h);
	setWorldMatrix(TQWMatrix(-1, 0, 0, 1, w - 1, 0));  // mirror left to right
}

/******************************************************************************
* Pass on all mouse events to the spinbox which we're covering up.
*/
void SpinMirror::contentsMouseEvent(TQMouseEvent* e)
{
	if (mReadOnly)
		return;
	TQPoint pt = contentsToViewport(e->pos());
	pt.setX(pt.x() + mSpinbox->upRect().left());
	TQApplication::postEvent(mSpinWidget, new TQMouseEvent(e->type(), pt, e->button(), e->state()));

	// If the mouse button has been pressed or released, refresh the spin buttons
	switch (e->type())
	{
		case TQEvent::MouseButtonPress:
		case TQEvent::MouseButtonRelease:
			TQTimer::singleShot(0, this, TQT_SLOT(redraw()));
			break;
		default:
			break;
	}
}

/******************************************************************************
* Pass on all mouse events to the spinbox which we're covering up.
*/
void SpinMirror::contentsWheelEvent(TQWheelEvent* e)
{
	if (mReadOnly)
		return;
	TQPoint pt = contentsToViewport(e->pos());
	pt.setX(pt.x() + mSpinbox->upRect().left());
	TQApplication::postEvent(mSpinWidget, new TQWheelEvent(pt, e->delta(), e->state(), e->orientation()));
}

/******************************************************************************
* Pass on to the main spinbox events which are needed to activate mouseover and
* other graphic effects when the mouse cursor enters and leaves the widget.
*/
bool SpinMirror::event(TQEvent* e)
{
	switch (e->type())
	{
		case TQEvent::Leave:
		case TQEvent::Enter:
			TQApplication::postEvent(mSpinWidget, new TQEvent(e->type()));
			TQTimer::singleShot(0, this, TQT_SLOT(redraw()));
			break;
		case TQEvent::FocusIn:
			mSpinbox->setFocus();
			TQTimer::singleShot(0, this, TQT_SLOT(redraw()));
			break;
		default:
			break;
	}
	return TQCanvasView::event(e);
}


/*=============================================================================
= Local functions
=============================================================================*/

/******************************************************************************
* Determine whether the extra pair of spin buttons needs to be mirrored
* left-to-right in the specified style.
*/
static bool mirrorStyle(const TQStyle& style)
{
	for (const char** s = mirrorStyles;  *s;  ++s)
		if (style.inherits(*s))
			return true;
	return false;
}