summaryrefslogtreecommitdiffstats
path: root/lib/compatibility/kmdi/qextmdi/kmditaskbar.cpp
blob: 71c3de45442497538e4d90000f6278ea247ff1ac (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
//----------------------------------------------------------------------------
//    filename             : kmditaskbar.cpp
//----------------------------------------------------------------------------
//    Project              : KDE MDI extension
//
//    begin                : 07/1999       by Szymon Stefanek as part of kvirc
//                                         (an IRC application)
//    changes              : 09/1999       by Falk Brettschneider to create an
//                           - 06/2000     stand-alone Qt extension set of
//                                         classes and a Qt-based library
//                           2000-2003     maintained by the KDevelop project
//    patches              : 02/2000       by Massimo Morin (mmorin@schedsys.com)
//
//    copyright            : (C) 1999-2003 by Szymon Stefanek (stefanek@tin.it)
//                                         and
//                                         Falk Brettschneider
//    email                :  falkbr@kdevelop.org (Falk Brettschneider)
//----------------------------------------------------------------------------
//
//----------------------------------------------------------------------------
//
//    This program is free software; you can redistribute it and/or modify
//    it under the terms of the GNU Library General Public License as
//    published by the Free Software Foundation; either version 2 of the
//    License, or (at your option) any later version.
//
//----------------------------------------------------------------------------

#include "kmditaskbar.h"
#include "kmditaskbar.moc"

#include "kmdimainfrm.h"
#include "kmdichildview.h"
#include "kmdidefines.h"

#include <tqtooltip.h>
#include <tqlabel.h>
#include <tqwidget.h>
#include <tqstyle.h>

#include <tqnamespace.h>

/*
   @quickhelp: KMdiTaskBar
   @widget: Taskbar
      This window lists the currently open windows.<br>
      Each button corresponds to a single MDI (child) window.<br>
      The button is enabled (clickable) when the window is docked , and can be
      pressed to bring it to the top of the other docked windows.<br>
      The button text becomes red when new output is shown in the window and it is not the active one.<br>
*/

//####################################################################
//
// KMdiTaskBarButton
//
//####################################################################
KMdiTaskBarButton::KMdiTaskBarButton( KMdiTaskBar *pTaskBar, KMdiChildView *win_ptr )
		: TQPushButton( pTaskBar ),
		m_actualText( "" )
{
	setToggleButton( true );
	m_pWindow = win_ptr;
	TQToolTip::add
		( this, win_ptr->caption() );
	setFocusPolicy( NoFocus );
}

KMdiTaskBarButton::~KMdiTaskBarButton()
{}

void KMdiTaskBarButton::mousePressEvent( TQMouseEvent* e )
{
	switch ( e->button() )
	{
	case TQMouseEvent::LeftButton:
		emit leftMouseButtonClicked( m_pWindow );
		break;
	case TQMouseEvent::RightButton:
		emit rightMouseButtonClicked( m_pWindow );
		break;
	default:
		break;
	}
	emit clicked( m_pWindow );
}

/** slot version of setText */
void KMdiTaskBarButton::setNewText( const TQString& s )
{
	setText( s );
	emit buttonTextChanged( 0 );
}

void KMdiTaskBarButton::setText( const TQString& s )
{
	m_actualText = s;
	TQButton::setText( s );
}

void KMdiTaskBarButton::fitText( const TQString& origStr, int newWidth )
{
	TQButton::setText( m_actualText );

	int actualWidth = sizeHint().width();
	int realLetterCount = origStr.length();
	int newLetterCount = ( newWidth * realLetterCount ) / actualWidth;
	int w = newWidth + 1;
	TQString s = origStr;
	while ( ( w > newWidth ) && ( newLetterCount >= 1 ) )
	{
		if ( newLetterCount < realLetterCount )
		{
			if ( newLetterCount > 3 )
				s = origStr.left( newLetterCount / 2 ) + "..." + origStr.right( newLetterCount / 2 );
			else
			{
				if ( newLetterCount > 1 )
					s = origStr.left( newLetterCount ) + "..";
				else
					s = origStr.left( 1 );
			}
		}
		TQFontMetrics fm = fontMetrics();
		w = fm.width( s );
		newLetterCount--;
	}

	TQButton::setText( s );
}

TQString KMdiTaskBarButton::actualText() const
{
	return m_actualText;
}

//####################################################################
//
// KMdiTaskBar
//
//####################################################################

KMdiTaskBar::KMdiTaskBar( KMdiMainFrm *parent, TQMainWindow::ToolBarDock dock )
		: KToolBar( parent, "KMdiTaskBar",  /*honor_style*/ false,  /*readConfig*/ true )
		, m_pCurrentFocusedWindow( 0 )
		, m_pStretchSpace( 0 )
		, m_layoutIsPending( false )
		, m_bSwitchedOn( false )
{
	m_pFrm = parent;
	m_pButtonList = new TQPtrList<KMdiTaskBarButton>;
	m_pButtonList->setAutoDelete( true );
	//QT30   setFontPropagation(TQWidget::SameFont);
	setMinimumWidth( 1 );
	setFocusPolicy( NoFocus );
	parent->moveToolBar( this, dock ); //XXX obsolete!
}

KMdiTaskBar::~KMdiTaskBar()
{
	delete m_pButtonList;
}

KMdiTaskBarButton * KMdiTaskBar::addWinButton( KMdiChildView *win_ptr )
{
	if ( m_pStretchSpace )
	{
		delete m_pStretchSpace;
		m_pStretchSpace = 0L;
		setStretchableWidget( 0L );
	}

	KMdiTaskBarButton *b = new KMdiTaskBarButton( this, win_ptr );
	TQObject::connect( b, TQT_SIGNAL( clicked() ), win_ptr, TQT_SLOT( setFocus() ) );
	TQObject::connect( b, TQT_SIGNAL( clicked( KMdiChildView* ) ), this, TQT_SLOT( setActiveButton( KMdiChildView* ) ) );
	TQObject::connect( b, TQT_SIGNAL( leftMouseButtonClicked( KMdiChildView* ) ), m_pFrm, TQT_SLOT( activateView( KMdiChildView* ) ) );
	TQObject::connect( b, TQT_SIGNAL( rightMouseButtonClicked( KMdiChildView* ) ), m_pFrm, TQT_SLOT( taskbarButtonRightClicked( KMdiChildView* ) ) );
	TQObject::connect( b, TQT_SIGNAL( buttonTextChanged( int ) ), this, TQT_SLOT( layoutTaskBar( int ) ) );
	m_pButtonList->append( b );
	b->setToggleButton( true );
	b->setText( win_ptr->tabCaption() );

	layoutTaskBar();

	m_pStretchSpace = new TQLabel( this, "empty" );
	m_pStretchSpace->setText( "" );
	setStretchableWidget( m_pStretchSpace );
	m_pStretchSpace->show();

	if ( m_bSwitchedOn )
	{
		b->show();
		show();
	}
	return b;
}

void KMdiTaskBar::removeWinButton( KMdiChildView *win_ptr, bool haveToLayoutTaskBar )
{
	KMdiTaskBarButton * b = getButton( win_ptr );
	if ( b )
	{
		m_pButtonList->removeRef( b );
		if ( haveToLayoutTaskBar )
			layoutTaskBar();
	}
	if ( m_pButtonList->count() == 0 )
	{
		if ( m_pStretchSpace != 0L )
		{
			delete m_pStretchSpace;
			m_pStretchSpace = 0L;
			hide();
		}
	}
}

void KMdiTaskBar::switchOn( bool bOn )
{
	m_bSwitchedOn = bOn;
	if ( !bOn )
	{
		hide();
	}
	else
	{
		if ( m_pButtonList->count() > 0 )
		{
			show();
		}
		else
		{
			hide();
		}
	}
}

KMdiTaskBarButton * KMdiTaskBar::getButton( KMdiChildView *win_ptr )
{
	for ( KMdiTaskBarButton * b = m_pButtonList->first();b;b = m_pButtonList->next() )
	{
		if ( b->m_pWindow == win_ptr )
			return b;
	}
	return 0;
}

KMdiTaskBarButton * KMdiTaskBar::getNextWindowButton( bool bRight, KMdiChildView *win_ptr )
{
	if ( bRight )
	{
		for ( KMdiTaskBarButton * b = m_pButtonList->first();b;b = m_pButtonList->next() )
		{
			if ( b->m_pWindow == win_ptr )
			{
				b = m_pButtonList->next();
				if ( !b )
					b = m_pButtonList->first();
				if ( win_ptr != b->m_pWindow )
					return b;
				else
					return 0;
			}
		}
	}
	else
	{
		for ( KMdiTaskBarButton * b = m_pButtonList->first();b;b = m_pButtonList->next() )
		{
			if ( b->m_pWindow == win_ptr )
			{
				b = m_pButtonList->prev();
				if ( !b )
					b = m_pButtonList->last();
				if ( win_ptr != b->m_pWindow )
					return b;
				else
					return 0;
			}
		}
	}
	return 0;
}

void KMdiTaskBar::setActiveButton( KMdiChildView *win_ptr )
{
	KMdiTaskBarButton * newPressedButton = 0L;
	KMdiTaskBarButton* oldPressedButton = 0L;
	for ( KMdiTaskBarButton * b = m_pButtonList->first();b;b = m_pButtonList->next() )
	{
		if ( b->m_pWindow == win_ptr )
			newPressedButton = b;
		if ( b->m_pWindow == m_pCurrentFocusedWindow )
			oldPressedButton = b;
	}

	if ( newPressedButton != 0L && newPressedButton != oldPressedButton )
	{
		if ( oldPressedButton != 0L )
			oldPressedButton->toggle(); // switch off
		newPressedButton->toggle();   // switch on
		m_pCurrentFocusedWindow = win_ptr;
	}
}

void KMdiTaskBar::layoutTaskBar( int taskBarWidth )
{
	if ( m_layoutIsPending )
		return ;
	m_layoutIsPending = true;

	if ( !taskBarWidth )
		// no width is given
		taskBarWidth = width();

	// calculate current width of all taskbar buttons
	int allButtonsWidth = 0;
	KMdiTaskBarButton *b = 0;
	for ( b = m_pButtonList->first();b;b = m_pButtonList->next() )
	{
		allButtonsWidth += b->width();
	}

	// calculate actual width of all taskbar buttons
	int allButtonsWidthHint = 0;
	for ( b = m_pButtonList->first();b;b = m_pButtonList->next() )
	{
		TQFontMetrics fm = b->fontMetrics();
		TQString s = b->actualText();
		TQSize sz = fm.size( ShowPrefix, s );
		int w = sz.width() + 6;
		int h = sz.height() + sz.height() / 8 + 10;
		w += h;
		allButtonsWidthHint += w;
	}

	// if there's enough space, use actual width
	int buttonCount = m_pButtonList->count();
	int tbHandlePixel;
	tbHandlePixel = style().pixelMetric( TQStyle::PM_DockWindowHandleExtent, this );
	int buttonAreaWidth = taskBarWidth - tbHandlePixel - style().pixelMetric( TQStyle::PM_DefaultFrameWidth, this ) - 5;
	if ( ( ( allButtonsWidthHint ) <= buttonAreaWidth ) || ( width() < parentWidget() ->width() ) )
	{
		for ( b = m_pButtonList->first();b;b = m_pButtonList->next() )
		{
			b->setText( b->actualText() );
			if ( b->width() != b->sizeHint().width() )
			{
				b->setFixedWidth( b->sizeHint().width() );
				b->show();
			}
		}
	}
	else
	{
		// too many buttons for actual width
		int newButtonWidth;
		if ( buttonCount != 0 )
			newButtonWidth = buttonAreaWidth / buttonCount;
		else
			newButtonWidth = 0;
		if ( orientation() == Qt::Vertical )
			newButtonWidth = 80;
		if ( newButtonWidth > 0 )
			for ( b = m_pButtonList->first();b;b = m_pButtonList->next() )
			{
				b->fitText( b->actualText(), newButtonWidth );
				if ( b->width() != newButtonWidth )
				{
					b->setFixedWidth( newButtonWidth );
					b->show();
				}
			}
	}
	m_layoutIsPending = false;
}

void KMdiTaskBar::resizeEvent( TQResizeEvent* rse )
{
	if ( !m_layoutIsPending )
	{
		if ( m_pButtonList->count() != 0 )
		{
			layoutTaskBar( rse->size().width() );
		}
	}
	KToolBar::resizeEvent( rse );
}

// kate: space-indent off; tab-width 4; replace-tabs off; indent-mode csands;