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1/****************************************************************************
2** $Id$
3**
4** Implementation of QColorDialog class
5**
6** Created : 990222
7**
8** Copyright (C) 1999-2000 Trolltech AS. All rights reserved.
9**
10** This file is part of the dialogs module of the Qt GUI Toolkit.
11**
12** This file may be distributed under the terms of the Q Public License
13** as defined by Trolltech AS of Norway and appearing in the file
14** LICENSE.QPL included in the packaging of this file.
15**
16** This file may be distributed and/or modified under the terms of the
17** GNU General Public License version 2 as published by the Free Software
18** Foundation and appearing in the file LICENSE.GPL included in the
19** packaging of this file.
20**
21** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
22** licenses may use this file in accordance with the Qt Commercial License
23** Agreement provided with the Software.
24**
25** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
26** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
27**
28** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
29** information about Qt Commercial License Agreements.
30** See http://www.trolltech.com/qpl/ for QPL licensing information.
31** See http://www.trolltech.com/gpl/ for GPL licensing information.
32**
33** Contact info@trolltech.com if any conditions of this licensing are
34** not clear to you.
35**
36**********************************************************************/
37
38#include "qcolordialog.h"
39
40#include "qpainter.h"
41#include "qlayout.h"
42#include "qlabel.h"
43#include "qpushbutton.h"
44#include "qlineedit.h"
45#include "qimage.h"
46#include "qpixmap.h"
47#include "qdrawutil.h"
48#include "qvalidator.h"
49#include "qdragobject.h"
50#include "qapplication.h"
51#include "qdragobject.h"
52
53//////////// QWellArray BEGIN
54
55#include "qobjectdict.h"
56
57//
58// W A R N I N G
59// -------------
60//
61// This file is not part of the Qt API. It exists for the convenience
62// of qwellarray.cpp and qcolordialog.cpp.
63// This header file may change from version to version without notice,
64// or even be removed.
65//
66//
67
68
69#include "qtableview.h"
70
71
72struct QWellArrayData;
73
74class QWellArray : public QTableView
75{
76 Q_OBJECT
77 Q_PROPERTY( int numCols READ numCols )
78 Q_PROPERTY( int numRows READ numRows )
79 Q_PROPERTY( int selectedColumn READ selectedColumn )
80 Q_PROPERTY( int selectedRow READ selectedRow )
81
82public:
83 QWellArray( QWidget *parent=0, const char *name=0, bool popup = FALSE );
84
85 ~QWellArray() {}
86 QString cellContent( int row, int col ) const;
87 // ### Paul !!! virtual void setCellContent( int row, int col, const QString &);
88
89 // ##### Obsolete since not const
90 int numCols() { return nCols; }
91 int numRows() { return nRows; }
92
93 int numCols() const { return nCols; }
94 int numRows() const { return nRows; }
95
96 // ##### Obsolete since not const
97 int selectedColumn() { return selCol; }
98 int selectedRow() { return selRow; }
99
100 int selectedColumn() const { return selCol; }
101 int selectedRow() const { return selRow; }
102
103 virtual void setSelected( int row, int col );
104
105 void setCellSize( int w, int h ) { setCellWidth(w);setCellHeight( h ); }
106
107 QSize sizeHint() const;
108
109 virtual void setDimension( int rows, int cols );
110 virtual void setCellBrush( int row, int col, const QBrush & );
111 QBrush cellBrush( int row, int col );
112
113signals:
114 void selected( int row, int col );
115
116protected:
117 virtual void setCurrent( int row, int col );
118
119 virtual void drawContents( QPainter *, int row, int col, const QRect& );
120 void drawContents( QPainter * );
121
122 void paintCell( QPainter*, int row, int col );
123 void mousePressEvent( QMouseEvent* );
124 void mouseReleaseEvent( QMouseEvent* );
125 void mouseMoveEvent( QMouseEvent* );
126 void keyPressEvent( QKeyEvent* );
127 void focusInEvent( QFocusEvent* );
128 void focusOutEvent( QFocusEvent* );
129
130private:
131 int curRow;
132 int curCol;
133 int selRow;
134 int selCol;
135 int nCols;
136 int nRows;
137 bool smallStyle;
138 QWellArrayData *d;
139
140 private:// Disabled copy constructor and operator=
141#if defined(Q_DISABLE_COPY)
142 QWellArray( const QWellArray & );
143 QWellArray& operator=( const QWellArray & );
144#endif
145};
146
147
148
149// non-interface ...
150
151
152
153struct QWellArrayData {
154 QBrush *brush;
155};
156
157// NOT REVISED
158/* WARNING, NOT
159 \class QWellArray qwellarray_p.h
160 \brief ....
161
162 ....
163
164 \ingroup advanced
165*/
166
167QWellArray::QWellArray( QWidget *parent, const char * name, bool popup )
168 : QTableView( parent, name,
169 popup ? (WStyle_Customize|WStyle_Tool|WStyle_NoBorder) : 0 )
170{
171 d = 0;
172 setFocusPolicy( StrongFocus );
173 setBackgroundMode( PaletteButton );
174 nCols = 7;
175 nRows = 7;
176 int w = 24; // cell width
177 int h = 21; // cell height
178 smallStyle = popup;
179
180 if ( popup ) {
181 w = h = 18;
182 if ( style() == WindowsStyle )
183 setFrameStyle( QFrame::WinPanel | QFrame::Raised );
184 else
185 setFrameStyle( QFrame::Panel | QFrame::Raised );
186 setMargin( 1 );
187 setLineWidth( 2 );
188 }
189 setNumCols( nCols );
190 setNumRows( nRows );
191 setCellWidth( w );
192 setCellHeight( h );
193 curCol = 0;
194 curRow = 0;
195 selCol = -1;
196 selRow = -1;
197
198 if ( smallStyle )
199 setMouseTracking( TRUE );
200 setOffset( 5 , 10 );
201
202 resize( sizeHint() );
203
204}
205
206
207QSize QWellArray::sizeHint() const
208{
209 constPolish();
210 int f = frameWidth() * 2;
211 int w = nCols * cellWidth() + f;
212 int h = nRows * cellHeight() + f;
213 return QSize( w, h );
214}
215
216
217void QWellArray::paintCell( QPainter* p, int row, int col )
218{
219 int w = cellWidth( col ); // width of cell in pixels
220 int h = cellHeight( row ); // height of cell in pixels
221 int b = 1;
222
223 if ( !smallStyle )
224 b = 3;
225
226 const QColorGroup & g = colorGroup();
227 p->setPen( QPen( black, 0, SolidLine ) );
228 if ( !smallStyle && row ==selRow && col == selCol &&
229 style() != MotifStyle ) {
230 int n = 2;
231 p->drawRect( n, n, w-2*n, h-2*n );
232 }
233
234
235 if ( style() == WindowsStyle ) {
236 qDrawWinPanel( p, b, b , w - 2*b, h - 2*b,
237 g, TRUE );
238 b += 2;
239 } else {
240 if ( smallStyle ) {
241 qDrawShadePanel( p, b, b , w - 2*b, h - 2*b,
242 g, TRUE, 2 );
243 b += 2;
244 } else {
245 int t = ( row == selRow && col == selCol ) ? 2 : 0;
246 b -= t;
247 qDrawShadePanel( p, b, b , w - 2*b, h - 2*b,
248 g, TRUE, 2 );
249 b += 2 + t;
250 }
251 }
252
253
254 if ( (row == curRow) && (col == curCol) ) {
255 if ( smallStyle ) {
256 p->setPen ( white );
257 p->drawRect( 1, 1, w-2, h-2 );
258 p->setPen ( black );
259 p->drawRect( 0, 0, w, h );
260 p->drawRect( 2, 2, w-4, h-4 );
261 b = 3;
262 } else if ( hasFocus() ) {
263 style().drawFocusRect(p, QRect(0,0,w,h), g );
264 }
265 }
266 drawContents( p, row, col, QRect(b, b, w - 2*b, h - 2*b) );
267}
268
269/*!
270 Pass-through to QTableView::drawContents() to avoid hiding.
271*/
272void QWellArray::drawContents( QPainter *p )
273{
274 QTableView::drawContents(p);
275}
276
277/*!
278 Reimplement this function to change the contents of the well array.
279 */
280void QWellArray::drawContents( QPainter *p, int row, int col, const QRect &r )
281{
282
283 if ( d ) {
284 p->fillRect( r, d->brush[row*nCols+col] );
285 } else {
286 p->fillRect( r, white );
287 p->setPen( black );
288 p->drawLine( r.topLeft(), r.bottomRight() );
289 p->drawLine( r.topRight(), r.bottomLeft() );
290 }
291}
292
293
294/*\reimp
295*/
296void QWellArray::mousePressEvent( QMouseEvent* e )
297{
298 // The current cell marker is set to the cell the mouse is pressed
299 // in.
300 QPoint pos = e->pos();
301 setCurrent( findRow( pos.y() ), findCol( pos.x() ) );
302}
303
304/*\reimp
305*/
306void QWellArray::mouseReleaseEvent( QMouseEvent* )
307{
308 // The current cell marker is set to the cell the mouse is clicked
309 // in.
310 setSelected( curRow, curCol );
311}
312
313
314/*\reimp
315*/
316void QWellArray::mouseMoveEvent( QMouseEvent* e )
317{
318 // The current cell marker is set to the cell the mouse is
319 // clicked in.
320 if ( smallStyle ) {
321 QPoint pos = e->pos();
322 setCurrent( findRow( pos.y() ), findCol( pos.x() ) );
323 }
324}
325
326/*
327 Sets the cell currently having the focus. This is not necessarily
328 the same as the currently selected cell.
329*/
330
331void QWellArray::setCurrent( int row, int col )
332{
333
334 if ( (curRow == row) && (curCol == col) )
335 return;
336
337 if ( row < 0 || col < 0 )
338 row = col = -1;
339
340 int oldRow = curRow;
341 int oldCol = curCol;
342
343 curRow = row;
344 curCol = col;
345
346 updateCell( oldRow, oldCol );
347 updateCell( curRow, curCol );
348}
349
350
351/*!
352 Sets the currently selected cell to \a row, \a col. If \a row or \a
353 col are less than zero, the current cell is unselected.
354
355 Does not set the position of the focus indicator.
356*/
357
358void QWellArray::setSelected( int row, int col )
359{
360 if ( (selRow == row) && (selCol == col) )
361 return;
362
363 int oldRow = selRow;
364 int oldCol = selCol;
365
366 if ( row < 0 || col < 0 )
367 row = col = -1;
368
369 selCol = col;
370 selRow = row;
371
372 updateCell( oldRow, oldCol );
373 updateCell( selRow, selCol );
374 if ( row >= 0 )
375 emit selected( row, col );
376
377 if ( isVisible() && parentWidget() && parentWidget()->inherits("QPopupMenu") )
378 parentWidget()->close();
379
380}
381
382
383
384/*!\reimp
385*/
386void QWellArray::focusInEvent( QFocusEvent* )
387{
388 updateCell( curRow, curCol );
389}
390
391
392/*!
393 Sets the size of the well array to be \c rows cells by \c cols.
394 Resets any brush info set by setCellBrush().
395
396 Must be called by reimplementors.
397 */
398void QWellArray::setDimension( int rows, int cols )
399{
400 nRows = rows;
401 nCols = cols;
402 if ( d ) {
403 if ( d->brush )
404 delete[] d->brush;
405 delete d;
406 d = 0;
407 }
408 setNumCols( nCols );
409 setNumRows( nRows );
410}
411
412void QWellArray::setCellBrush( int row, int col, const QBrush &b )
413{
414 if ( !d ) {
415 d = new QWellArrayData;
416 d->brush = new QBrush[nRows*nCols];
417 }
418 if ( row >= 0 && row < nRows && col >= 0 && col < nCols )
419 d->brush[row*nCols+col] = b;
420#ifdef CHECK_RANGE
421 else
422 qWarning( "QWellArray::setCellBrush( %d, %d ) out of range", row, col );
423#endif
424}
425
426
427
428/*!
429 Returns the brush set for the cell at \a row, \a col. If no brush is set,
430 \c NoBrush is returned.
431*/
432
433QBrush QWellArray::cellBrush( int row, int col )
434{
435 if ( d && row >= 0 && row < nRows && col >= 0 && col < nCols )
436 return d->brush[row*nCols+col];
437 return NoBrush;
438}
439
440
441
442/*!\reimp
443*/
444
445void QWellArray::focusOutEvent( QFocusEvent* )
446{
447 updateCell( curRow, curCol );
448}
449
450/*\reimp
451*/
452void QWellArray::keyPressEvent( QKeyEvent* e )
453{
454 switch( e->key() ) { // Look at the key code
455 case Key_Left: // If 'left arrow'-key,
456 if( curCol > 0 ) { // and cr't not in leftmost col
457 setCurrent( curRow, curCol - 1);// set cr't to next left column
458 int edge = leftCell(); // find left edge
459 if ( curCol < edge ) // if we have moved off edge,
460 setLeftCell( edge - 1 );// scroll view to rectify
461 }
462 break;
463 case Key_Right: // Correspondingly...
464 if( curCol < numCols()-1 ) {
465 setCurrent( curRow, curCol + 1);
466 int edge = lastColVisible();
467 if ( curCol >= edge )
468 setLeftCell( leftCell() + 1 );
469 }
470 break;
471 case Key_Up:
472 if( curRow > 0 ) {
473 setCurrent( curRow - 1, curCol);
474 int edge = topCell();
475 if ( curRow < edge )
476 setTopCell( edge - 1 );
477 } else if ( smallStyle )
478 focusNextPrevChild( FALSE );
479 break;
480 case Key_Down:
481 if( curRow < numRows()-1 ) {
482 setCurrent( curRow + 1, curCol);
483 int edge = lastRowVisible();
484 if ( curRow >= edge )
485 setTopCell( topCell() + 1 );
486 } else if ( smallStyle )
487 focusNextPrevChild( TRUE );
488 break;
489 case Key_Space:
490 case Key_Return:
491 case Key_Enter:
492 setSelected( curRow, curCol );
493 break;
494 default: // If not an interesting key,
495 e->ignore(); // we don't accept the event
496 return;
497 }
498
499}
500
501//////////// QWellArray END
502
503static bool initrgb = FALSE;
504static QRgb stdrgb[6*8];
505static QRgb cusrgb[2*8];
506
507
508static void initRGB()
509{
510 if ( initrgb )
511 return;
512 initrgb = TRUE;
513 int i = 0;
514 for ( int g = 0; g < 4; g++ )
515 for ( int r = 0; r < 4; r++ )
516 for ( int b = 0; b < 3; b++ )
517 stdrgb[i++] = qRgb( r*255/3, g*255/3, b*255/2 );
518
519 for ( i = 0; i < 2*8; i++ )
520 cusrgb[i] = qRgb(0xff,0xff,0xff);
521}
522
523/*!
524 Returns the number of custom colors supported by
525 QColorDialog. All color dialogs share the same custom colors.
526*/
527int QColorDialog::customCount()
528{
529 return 2*8;
530}
531
532/*!
533 Returns custom color number \a i as a QRgb.
534 */
535QRgb QColorDialog::customColor( int i )
536{
537 initRGB();
538 if ( i < 0 || i >= customCount() ) {
539#ifdef CHECK_RANGE
540 qWarning( "QColorDialog::customColor() index %d out of range", i );
541 #endif
542 i = 0;
543 }
544 return cusrgb[i];
545}
546
547/*!
548 Sets custom color number \a i to the QRgb value \a c.
549*/
550void QColorDialog::setCustomColor( int i, QRgb c )
551{
552 initRGB();
553 if ( i < 0 || i >= customCount() ) {
554#ifdef CHECK_RANGE
555 qWarning( "QColorDialog::customColor() index %d out of range", i );
556 #endif
557 return;
558 }
559 cusrgb[i] = c;
560}
561
562static inline void rgb2hsv( QRgb rgb, int&h, int&s, int&v )
563{
564 QColor c;
565 c.setRgb( rgb );
566 c.getHsv(h,s,v);
567}
568
569class QColorWell : public QWellArray
570{
571public:
572 QColorWell( QWidget *parent, int r, int c, QRgb *vals )
573 :QWellArray( parent, "" ), values( vals ), mousePressed( FALSE ), oldCurrent( -1, -1 )
574 { setDimension(r,c); setWFlags( WResizeNoErase ); }
575 QSizePolicy sizePolicy() const;
576
577protected:
578 void drawContents( QPainter *, int row, int col, const QRect& );
579 void drawContents( QPainter *p ) { QWellArray::drawContents(p); }
580 void mousePressEvent( QMouseEvent *e );
581 void mouseMoveEvent( QMouseEvent *e );
582 void mouseReleaseEvent( QMouseEvent *e );
583#ifndef QT_NO_DRAGANDDROP
584 void dragEnterEvent( QDragEnterEvent *e );
585 void dragLeaveEvent( QDragLeaveEvent *e );
586 void dragMoveEvent( QDragMoveEvent *e );
587 void dropEvent( QDropEvent *e );
588#endif
589
590private:
591 QRgb *values;
592 bool mousePressed;
593 QPoint pressPos;
594 QPoint oldCurrent;
595
596};
597
598QSizePolicy QColorWell::sizePolicy() const
599{
600 return QSizePolicy( QSizePolicy::Minimum, QSizePolicy::Minimum );
601}
602
603void QColorWell::drawContents( QPainter *p, int row, int col, const QRect &r )
604{
605 int i = row + col*numRows();
606 p->fillRect( r, QColor( values[i] ) );
607}
608
609void QColorWell::mousePressEvent( QMouseEvent *e )
610{
611 oldCurrent = QPoint( selectedRow(), selectedColumn() );
612 QWellArray::mousePressEvent( e );
613 mousePressed = TRUE;
614 pressPos = e->pos();
615}
616
617void QColorWell::mouseMoveEvent( QMouseEvent *e )
618{
619 QWellArray::mouseMoveEvent( e );
620#ifndef QT_NO_DRAGANDDROP
621 if ( !mousePressed )
622 return;
623 if ( ( pressPos - e->pos() ).manhattanLength() > QApplication::startDragDistance() ) {
624 setCurrent( oldCurrent.x(), oldCurrent.y() );
625 int i = findRow( e->y() ) + findCol( e->x() ) * numRows();
626 QColor col( values[ i ] );
627 QColorDrag *drg = new QColorDrag( col, this );
628 QPixmap pix( cellWidth(), cellHeight() );
629 pix.fill( col );
630 QPainter p( &pix );
631 p.drawRect( 0, 0, pix.width(), pix.height() );
632 p.end();
633 drg->setPixmap( pix );
634 mousePressed = FALSE;
635 drg->dragCopy();
636 }
637#endif
638}
639
640#ifndef QT_NO_DRAGANDDROP
641void QColorWell::dragEnterEvent( QDragEnterEvent *e )
642{
643 setFocus();
644 if ( QColorDrag::canDecode( e ) )
645 e->accept();
646 else
647 e->ignore();
648}
649
650void QColorWell::dragLeaveEvent( QDragLeaveEvent * )
651{
652 if ( hasFocus() )
653 parentWidget()->setFocus();
654}
655
656void QColorWell::dragMoveEvent( QDragMoveEvent *e )
657{
658 if ( QColorDrag::canDecode( e ) ) {
659 setCurrent( findRow( e->pos().y() ), findCol( e->pos().x() ) );
660 e->accept();
661 } else
662 e->ignore();
663}
664
665void QColorWell::dropEvent( QDropEvent *e )
666{
667 if ( QColorDrag::canDecode( e ) ) {
668 int i = findRow( e->pos().y() ) + findCol( e->pos().x() ) * numRows();
669 QColor col;
670 QColorDrag::decode( e, col );
671 values[ i ] = col.rgb();
672 repaint( FALSE );
673 e->accept();
674 } else {
675 e->ignore();
676 }
677}
678
679#endif // QT_NO_DRAGANDDROP
680
681void QColorWell::mouseReleaseEvent( QMouseEvent *e )
682{
683 if ( !mousePressed )
684 return;
685 QWellArray::mouseReleaseEvent( e );
686 mousePressed = FALSE;
687}
688
689class QColorPicker : public QFrame
690{
691 Q_OBJECT
692public:
693 QColorPicker(QWidget* parent=0, const char* name=0);
694 ~QColorPicker();
695
696public slots:
697 void setCol( int h, int s );
698
699signals:
700 void newCol( int h, int s );
701
702protected:
703 QSize sizeHint() const;
704 QSizePolicy sizePolicy() const;
705 void drawContents(QPainter* p);
706 void mouseMoveEvent( QMouseEvent * );
707 void mousePressEvent( QMouseEvent * );
708
709private:
710 int hue;
711 int sat;
712
713 QPoint colPt();
714 int huePt( const QPoint &pt );
715 int satPt( const QPoint &pt );
716 void setCol( const QPoint &pt );
717
718 QPixmap *pix;
719};
720
721static int pWidth = 200;
722static int pHeight = 200;
723
724class QColorLuminancePicker : public QWidget
725{
726 Q_OBJECT
727public:
728 QColorLuminancePicker(QWidget* parent=0, const char* name=0);
729 ~QColorLuminancePicker();
730
731public slots:
732 void setCol( int h, int s, int v );
733 void setCol( int h, int s );
734
735signals:
736 void newHsv( int h, int s, int v );
737
738protected:
739// QSize sizeHint() const;
740// QSizePolicy sizePolicy() const;
741 void paintEvent( QPaintEvent*);
742 void mouseMoveEvent( QMouseEvent * );
743 void mousePressEvent( QMouseEvent * );
744
745private:
746 enum { foff = 3, coff = 4 }; //frame and contents offset
747 int val;
748 int hue;
749 int sat;
750
751 int y2val( int y );
752 int val2y( int val );
753 void setVal( int v );
754
755 QPixmap *pix;
756};
757
758
759int QColorLuminancePicker::y2val( int y )
760{
761 int d = height() - 2*coff - 1;
762 return 255 - (y - coff)*255/d;
763}
764
765int QColorLuminancePicker::val2y( int v )
766{
767 int d = height() - 2*coff - 1;
768 return coff + (255-v)*d/255;
769}
770
771QColorLuminancePicker::QColorLuminancePicker(QWidget* parent,
772 const char* name)
773 :QWidget( parent, name )
774{
775 hue = 100; val = 100; sat = 100;
776 pix = 0;
777 // setBackgroundMode( NoBackground );
778}
779
780QColorLuminancePicker::~QColorLuminancePicker()
781{
782 delete pix;
783}
784
785void QColorLuminancePicker::mouseMoveEvent( QMouseEvent *m )
786{
787 setVal( y2val(m->y()) );
788}
789void QColorLuminancePicker::mousePressEvent( QMouseEvent *m )
790{
791 setVal( y2val(m->y()) );
792}
793
794void QColorLuminancePicker::setVal( int v )
795{
796 if ( val == v )
797 return;
798 val = QMAX( 0, QMIN(v,255));
799 delete pix; pix=0;
800 repaint( FALSE ); //###
801 emit newHsv( hue, sat, val );
802}
803
804//receives from a hue,sat chooser and relays.
805void QColorLuminancePicker::setCol( int h, int s )
806{
807 setCol( h, s, val );
808 emit newHsv( h, s, val );
809}
810
811void QColorLuminancePicker::paintEvent( QPaintEvent * )
812{
813 int w = width() - 5;
814
815 QRect r( 0, foff, w, height() - 2*foff );
816 int wi = r.width() - 2;
817 int hi = r.height() - 2;
818 if ( !pix || pix->height() != hi || pix->width() != wi ) {
819 delete pix;
820 QImage img( wi, hi, 32 );
821 int y;
822 for ( y = 0; y < hi; y++ ) {
823 QColor c( hue, sat, y2val(y+coff), QColor::Hsv );
824 QRgb r = c.rgb();
825 int x;
826 for ( x = 0; x < wi; x++ )
827 img.setPixel( x, y, r );
828 }
829 pix = new QPixmap;
830 pix->convertFromImage(img);
831 }
832 QPainter p(this);
833 p.drawPixmap( 1, coff, *pix );
834 QColorGroup g = colorGroup();
835 qDrawShadePanel( &p, r, g, TRUE );
836 p.setPen( g.foreground() );
837 p.setBrush( g.foreground() );
838 QPointArray a;
839 int y = val2y(val);
840 a.setPoints( 3, w, y, w+5, y+5, w+5, y-5 );
841 erase( w, 0, 5, height() );
842 p.drawPolygon( a );
843}
844
845void QColorLuminancePicker::setCol( int h, int s , int v )
846{
847 val = v;
848 hue = h;
849 sat = s;
850 delete pix; pix=0;
851 repaint( FALSE );//####
852}
853
854QPoint QColorPicker::colPt()
855{ return QPoint( (360-hue)*(pWidth-1)/360, (255-sat)*(pHeight-1)/255 ); }
856int QColorPicker::huePt( const QPoint &pt )
857{ return 360 - pt.x()*360/(pWidth-1); }
858int QColorPicker::satPt( const QPoint &pt )
859{ return 255 - pt.y()*255/(pHeight-1) ; }
860void QColorPicker::setCol( const QPoint &pt )
861{ setCol( huePt(pt), satPt(pt) ); }
862
863QColorPicker::QColorPicker(QWidget* parent, const char* name )
864 : QFrame( parent, name )
865{
866 hue = 0; sat = 0;
867 setCol( 150, 255 );
868
869 QImage img( pWidth, pHeight, 32 );
870 int x,y;
871 for ( y = 0; y < pHeight; y++ )
872 for ( x = 0; x < pWidth; x++ ) {
873 QPoint p( x, y );
874 img.setPixel( x, y, QColor(huePt(p), satPt(p),
875 200, QColor::Hsv).rgb() );
876 }
877 pix = new QPixmap;
878 pix->convertFromImage(img);
879 setBackgroundMode( NoBackground );
880}
881
882QColorPicker::~QColorPicker()
883{
884 delete pix;
885}
886
887QSize QColorPicker::sizeHint() const
888{
889 return QSize( pWidth + 2*frameWidth(), pHeight + 2*frameWidth() );
890}
891
892QSizePolicy QColorPicker::sizePolicy() const
893{
894 return QSizePolicy( QSizePolicy::Fixed, QSizePolicy::Fixed );
895}
896
897void QColorPicker::setCol( int h, int s )
898{
899 int nhue = QMIN( QMAX(0,h), 360 );
900 int nsat = QMIN( QMAX(0,s), 255);
901 if ( nhue == hue && nsat == sat )
902 return;
903 QRect r( colPt(), QSize(20,20) );
904 hue = nhue; sat = nsat;
905 r = r.unite( QRect( colPt(), QSize(20,20) ) );
906 r.moveBy( contentsRect().x()-9, contentsRect().y()-9 );
907 // update( r );
908 repaint( r, FALSE );
909}
910
911void QColorPicker::mouseMoveEvent( QMouseEvent *m )
912{
913 QPoint p = m->pos() - contentsRect().topLeft();
914 setCol( p );
915 emit newCol( hue, sat );
916}
917
918void QColorPicker::mousePressEvent( QMouseEvent *m )
919{
920 QPoint p = m->pos() - contentsRect().topLeft();
921 setCol( p );
922 emit newCol( hue, sat );
923}
924
925void QColorPicker::drawContents(QPainter* p)
926{
927 QRect r = contentsRect();
928
929 p->drawPixmap( r.topLeft(), *pix );
930 QPoint pt = colPt() + r.topLeft();
931 p->setPen( QPen(black) );
932
933 p->fillRect( pt.x()-9, pt.y(), 20, 2, black );
934 p->fillRect( pt.x(), pt.y()-9, 2, 20, black );
935
936}
937
938class QColorShowLabel;
939
940
941
942class QColIntValidator: public QIntValidator
943{
944public:
945 QColIntValidator( int bottom, int top,
946 QWidget * parent, const char *name = 0 )
947 :QIntValidator( bottom, top, parent, name ) {}
948
949 QValidator::State validate( QString &, int & ) const;
950};
951
952QValidator::State QColIntValidator::validate( QString &s, int &pos ) const
953{
954 State state = QIntValidator::validate(s,pos);
955 if ( state == Valid ) {
956 long int val = s.toLong();
957 // This is not a general solution, assumes that top() > 0 and
958 // bottom >= 0
959 if ( val < 0 ) {
960 s = "0";
961 pos = 1;
962 } else if ( val > top() ) {
963 s.setNum( top() );
964 pos = s.length();
965 }
966 }
967 return state;
968}
969
970
971
972class QColNumLineEdit : public QLineEdit
973{
974public:
975 QColNumLineEdit( QWidget *parent, const char* name = 0 )
976 : QLineEdit( parent, name ) { setMaxLength( 3 );}
977 QSize sizeHint() const {
978 return QSize( 30, //#####
979 QLineEdit::sizeHint().height() ); }
980 void setNum( int i ) {
981 QString s;
982 s.setNum(i);
983 bool block = signalsBlocked();
984 blockSignals(TRUE);
985 setText( s );
986 blockSignals(block);
987 }
988 int val() const { return text().toInt(); }
989};
990
991
992class QColorShower : public QWidget
993{
994 Q_OBJECT
995public:
996 QColorShower( QWidget *parent, const char *name = 0 );
997
998 //things that don't emit signals
999 void setHsv( int h, int s, int v );
1000
1001 int currentAlpha() const { return alphaEd->val(); }
1002 void setCurrentAlpha( int a ) { alphaEd->setNum( a ); }
1003 void showAlpha( bool b );
1004
1005
1006 QRgb currentColor() const { return curCol; }
1007
1008public slots:
1009 void setRgb( QRgb rgb );
1010
1011signals:
1012 void newCol( QRgb rgb );
1013private slots:
1014 void rgbEd();
1015 void hsvEd();
1016private:
1017 void showCurrentColor();
1018 int hue, sat, val;
1019 QRgb curCol;
1020 QColNumLineEdit *hEd;
1021 QColNumLineEdit *sEd;
1022 QColNumLineEdit *vEd;
1023 QColNumLineEdit *rEd;
1024 QColNumLineEdit *gEd;
1025 QColNumLineEdit *bEd;
1026 QColNumLineEdit *alphaEd;
1027 QLabel *alphaLab;
1028 QColorShowLabel *lab;
1029 bool rgbOriginal;
1030};
1031
1032class QColorShowLabel : public QFrame
1033{
1034 Q_OBJECT
1035
1036public:
1037 QColorShowLabel( QWidget *parent ) :QFrame( parent ) {
1038 setFrameStyle( QFrame::Panel|QFrame::Sunken );
1039 setBackgroundMode( PaletteBackground );
1040 setAcceptDrops( TRUE );
1041 mousePressed = FALSE;
1042 }
1043 void setColor( QColor c ) { col = c; }
1044
1045signals:
1046 void colorDropped( QRgb );
1047
1048protected:
1049 void drawContents( QPainter *p );
1050 void mousePressEvent( QMouseEvent *e );
1051 void mouseMoveEvent( QMouseEvent *e );
1052 void mouseReleaseEvent( QMouseEvent *e );
1053#ifndef QT_NO_DRAGANDDROP
1054 void dragEnterEvent( QDragEnterEvent *e );
1055 void dragLeaveEvent( QDragLeaveEvent *e );
1056 void dropEvent( QDropEvent *e );
1057#endif
1058
1059private:
1060 QColor col;
1061 bool mousePressed;
1062 QPoint pressPos;
1063
1064};
1065
1066void QColorShowLabel::drawContents( QPainter *p )
1067{
1068 p->fillRect( contentsRect(), col );
1069}
1070
1071void QColorShower::showAlpha( bool b )
1072{
1073 if ( b ) {
1074 alphaLab->show();
1075 alphaEd->show();
1076 } else {
1077 alphaLab->hide();
1078 alphaEd->hide();
1079 }
1080}
1081
1082void QColorShowLabel::mousePressEvent( QMouseEvent *e )
1083{
1084 mousePressed = TRUE;
1085 pressPos = e->pos();
1086}
1087
1088void QColorShowLabel::mouseMoveEvent( QMouseEvent *e )
1089{
1090#ifndef QT_NO_DRAGANDDROP
1091 if ( !mousePressed )
1092 return;
1093 if ( ( pressPos - e->pos() ).manhattanLength() > QApplication::startDragDistance() ) {
1094 QColorDrag *drg = new QColorDrag( col, this );
1095 QPixmap pix( 30, 20 );
1096 pix.fill( col );
1097 QPainter p( &pix );
1098 p.drawRect( 0, 0, pix.width(), pix.height() );
1099 p.end();
1100 drg->setPixmap( pix );
1101 mousePressed = FALSE;
1102 drg->dragCopy();
1103 }
1104#endif
1105}
1106
1107#ifndef QT_NO_DRAGANDDROP
1108void QColorShowLabel::dragEnterEvent( QDragEnterEvent *e )
1109{
1110 if ( QColorDrag::canDecode( e ) )
1111 e->accept();
1112 else
1113 e->ignore();
1114}
1115
1116void QColorShowLabel::dragLeaveEvent( QDragLeaveEvent * )
1117{
1118}
1119
1120void QColorShowLabel::dropEvent( QDropEvent *e )
1121{
1122 if ( QColorDrag::canDecode( e ) ) {
1123 QColorDrag::decode( e, col );
1124 repaint( FALSE );
1125 emit colorDropped( col.rgb() );
1126 e->accept();
1127 } else {
1128 e->ignore();
1129 }
1130}
1131#endif // QT_NO_DRAGANDDROP
1132
1133void QColorShowLabel::mouseReleaseEvent( QMouseEvent * )
1134{
1135 if ( !mousePressed )
1136 return;
1137 mousePressed = FALSE;
1138}
1139
1140QColorShower::QColorShower( QWidget *parent, const char *name )
1141 :QWidget( parent, name)
1142{
1143 curCol = qRgb( -1, -1, -1 );
1144 QColIntValidator *val256 = new QColIntValidator( 0, 255, this );
1145 QColIntValidator *val360 = new QColIntValidator( 0, 360, this );
1146
1147 QGridLayout *gl = new QGridLayout( this, 1, 1, 6 );
1148 lab = new QColorShowLabel( this );
1149 lab->setMinimumWidth( 60 ); //###
1150 gl->addMultiCellWidget(lab, 0,-1,0,0);
1151 connect( lab, SIGNAL( colorDropped(QRgb) ),
1152 this, SIGNAL( newCol(QRgb) ) );
1153 connect( lab, SIGNAL( colorDropped(QRgb) ),
1154 this, SLOT( setRgb(QRgb) ) );
1155
1156 hEd = new QColNumLineEdit( this );
1157 hEd->setValidator( val360 );
1158 QLabel *l = new QLabel( hEd, QColorDialog::tr("Hu&e:"), this );
1159 l->setAlignment( AlignRight|AlignVCenter );
1160 gl->addWidget( l, 0, 1 );
1161 gl->addWidget( hEd, 0, 2 );
1162
1163 sEd = new QColNumLineEdit( this );
1164 sEd->setValidator( val256 );
1165 l = new QLabel( sEd, QColorDialog::tr("&Sat:"), this );
1166 l->setAlignment( AlignRight|AlignVCenter );
1167 gl->addWidget( l, 1, 1 );
1168 gl->addWidget( sEd, 1, 2 );
1169
1170 vEd = new QColNumLineEdit( this );
1171 vEd->setValidator( val256 );
1172 l = new QLabel( vEd, QColorDialog::tr("&Val:"), this );
1173 l->setAlignment( AlignRight|AlignVCenter );
1174 gl->addWidget( l, 2, 1 );
1175 gl->addWidget( vEd, 2, 2 );
1176
1177 rEd = new QColNumLineEdit( this );
1178 rEd->setValidator( val256 );
1179 l = new QLabel( rEd, QColorDialog::tr("&Red:"), this );
1180 l->setAlignment( AlignRight|AlignVCenter );
1181 gl->addWidget( l, 0, 3 );
1182 gl->addWidget( rEd, 0, 4 );
1183
1184 gEd = new QColNumLineEdit( this );
1185 gEd->setValidator( val256 );
1186 l = new QLabel( gEd, QColorDialog::tr("&Green:"), this );
1187 l->setAlignment( AlignRight|AlignVCenter );
1188 gl->addWidget( l, 1, 3 );
1189 gl->addWidget( gEd, 1, 4 );
1190
1191 bEd = new QColNumLineEdit( this );
1192 bEd->setValidator( val256 );
1193 l = new QLabel( bEd, QColorDialog::tr("Bl&ue:"), this );
1194 l->setAlignment( AlignRight|AlignVCenter );
1195 gl->addWidget( l, 2, 3 );
1196 gl->addWidget( bEd, 2, 4 );
1197
1198 alphaEd = new QColNumLineEdit( this );
1199 alphaEd->setValidator( val256 );
1200 alphaLab = new QLabel( alphaEd, QColorDialog::tr("A&lpha channel:"), this );
1201 alphaLab->setAlignment( AlignRight|AlignVCenter );
1202 gl->addMultiCellWidget( alphaLab, 3, 3, 1, 3 );
1203 gl->addWidget( alphaEd, 3, 4 );
1204 alphaEd->hide();
1205 alphaLab->hide();
1206
1207 connect( hEd, SIGNAL(textChanged(const QString&)), this, SLOT(hsvEd()) );
1208 connect( sEd, SIGNAL(textChanged(const QString&)), this, SLOT(hsvEd()) );
1209 connect( vEd, SIGNAL(textChanged(const QString&)), this, SLOT(hsvEd()) );
1210
1211 connect( rEd, SIGNAL(textChanged(const QString&)), this, SLOT(rgbEd()) );
1212 connect( gEd, SIGNAL(textChanged(const QString&)), this, SLOT(rgbEd()) );
1213 connect( bEd, SIGNAL(textChanged(const QString&)), this, SLOT(rgbEd()) );
1214}
1215
1216void QColorShower::showCurrentColor()
1217{
1218 lab->setColor( currentColor() );
1219 lab->repaint(FALSE); //###
1220}
1221
1222void QColorShower::rgbEd()
1223{
1224 rgbOriginal = TRUE;
1225 curCol = qRgb( rEd->val(), gEd->val(), bEd->val() );
1226 rgb2hsv(currentColor(), hue, sat, val );
1227
1228 hEd->setNum( hue );
1229 sEd->setNum( sat );
1230 vEd->setNum( val );
1231
1232 showCurrentColor();
1233 emit newCol( currentColor() );
1234}
1235
1236void QColorShower::hsvEd()
1237{
1238 rgbOriginal = FALSE;
1239 hue = hEd->val();
1240 sat = sEd->val();
1241 val = vEd->val();
1242
1243 curCol = QColor( hue, sat, val, QColor::Hsv ).rgb();
1244
1245 rEd->setNum( qRed(currentColor()) );
1246 gEd->setNum( qGreen(currentColor()) );
1247 bEd->setNum( qBlue(currentColor()) );
1248
1249 showCurrentColor();
1250 emit newCol( currentColor() );
1251}
1252
1253void QColorShower::setRgb( QRgb rgb )
1254{
1255 rgbOriginal = TRUE;
1256 curCol = rgb;
1257
1258 rgb2hsv( currentColor(), hue, sat, val );
1259
1260 hEd->setNum( hue );
1261 sEd->setNum( sat );
1262 vEd->setNum( val );
1263
1264 rEd->setNum( qRed(currentColor()) );
1265 gEd->setNum( qGreen(currentColor()) );
1266 bEd->setNum( qBlue(currentColor()) );
1267
1268 showCurrentColor();
1269}
1270
1271void QColorShower::setHsv( int h, int s, int v )
1272{
1273 rgbOriginal = FALSE;
1274 hue = h; val = v; sat = s; //Range check###
1275 curCol = QColor( hue, sat, val, QColor::Hsv ).rgb();
1276
1277 hEd->setNum( hue );
1278 sEd->setNum( sat );
1279 vEd->setNum( val );
1280
1281 rEd->setNum( qRed(currentColor()) );
1282 gEd->setNum( qGreen(currentColor()) );
1283 bEd->setNum( qBlue(currentColor()) );
1284
1285
1286 showCurrentColor();
1287}
1288
1289class QColorDialogPrivate : public QObject
1290{
1291Q_OBJECT
1292public:
1293 QColorDialogPrivate( QColorDialog *p );
1294 QRgb currentColor() const { return cs->currentColor(); }
1295 void setCurrentColor( QRgb rgb );
1296
1297 int currentAlpha() const { return cs->currentAlpha(); }
1298 void setCurrentAlpha( int a ) { cs->setCurrentAlpha( a ); }
1299 void showAlpha( bool b ) { cs->showAlpha( b ); }
1300
1301private slots:
1302 void addCustom();
1303
1304 void newHsv( int h, int s, int v );
1305 void newColorTypedIn( QRgb rgb );
1306 void newCustom( int, int );
1307 void newStandard( int, int );
1308private:
1309 QColorPicker *cp;
1310 QColorLuminancePicker *lp;
1311 QWellArray *custom;
1312 QWellArray *standard;
1313 QColorShower *cs;
1314 int nextCust;
1315 bool compact;
1316};
1317
1318//sets all widgets to display h,s,v
1319void QColorDialogPrivate::newHsv( int h, int s, int v )
1320{
1321 cs->setHsv( h, s, v );
1322 cp->setCol( h, s );
1323 lp->setCol( h, s, v );
1324}
1325
1326//sets all widgets to display rgb
1327void QColorDialogPrivate::setCurrentColor( QRgb rgb )
1328{
1329 cs->setRgb( rgb );
1330 newColorTypedIn( rgb );
1331}
1332
1333//sets all widgets exept cs to display rgb
1334void QColorDialogPrivate::newColorTypedIn( QRgb rgb )
1335{
1336 int h, s, v;
1337 rgb2hsv(rgb, h, s, v );
1338 cp->setCol( h, s );
1339 lp->setCol( h, s, v);
1340}
1341
1342void QColorDialogPrivate::newCustom( int r, int c )
1343{
1344 int i = r+2*c;
1345 setCurrentColor( cusrgb[i] );
1346 nextCust = i;
1347 standard->setSelected(-1,-1);
1348}
1349
1350void QColorDialogPrivate::newStandard( int r, int c )
1351{
1352 setCurrentColor( stdrgb[r+c*6] );
1353 custom->setSelected(-1,-1);
1354}
1355
1356QColorDialogPrivate::QColorDialogPrivate( QColorDialog *dialog ) :
1357 QObject(dialog)
1358{
1359 compact = FALSE;
1360 // small displays (e.g. PDAs cannot fit the full color dialog,
1361 // so just use the color picker.
1362 if ( qApp->desktop()->width() < 480 || qApp->desktop()->height() < 350 )
1363 compact = TRUE;
1364
1365 nextCust = 0;
1366 const int lumSpace = 3;
1367 int border = 12;
1368 if ( compact )
1369 border = 6;
1370 QHBoxLayout *topLay = new QHBoxLayout( dialog, border, 6 );
1371 QVBoxLayout *leftLay = 0;
1372
1373 if ( !compact )
1374 leftLay = new QVBoxLayout( topLay );
1375
1376 initRGB();
1377
1378 if ( !compact ) {
1379 standard = new QColorWell( dialog, 6, 8, stdrgb );
1380 standard->setCellSize( 28, 24 );
1381 QLabel * lab = new QLabel( standard,
1382 QColorDialog::tr( "&Basic colors"), dialog );
1383 connect( standard, SIGNAL(selected(int,int)), SLOT(newStandard(int,int)));
1384 leftLay->addWidget( lab );
1385 leftLay->addWidget( standard );
1386
1387
1388 leftLay->addStretch();
1389
1390 custom = new QColorWell( dialog, 2, 8, cusrgb );
1391 custom->setCellSize( 28, 24 );
1392 custom->setAcceptDrops( TRUE );
1393
1394 connect( custom, SIGNAL(selected(int,int)), SLOT(newCustom(int,int)));
1395 lab = new QLabel( custom, QColorDialog::tr( "&Custom colors") , dialog );
1396 leftLay->addWidget( lab );
1397 leftLay->addWidget( custom );
1398
1399 QPushButton *custbut =
1400 new QPushButton( QColorDialog::tr("&Define Custom Colors >>"),
1401 dialog );
1402 custbut->setEnabled( FALSE );
1403 leftLay->addWidget( custbut );
1404 } else {
1405 // better color picker size for small displays
1406 pWidth = 150;
1407 pHeight = 100;
1408 }
1409
1410 QVBoxLayout *rightLay = new QVBoxLayout( topLay );
1411
1412 QHBoxLayout *pickLay = new QHBoxLayout( rightLay );
1413
1414
1415 QVBoxLayout *cLay = new QVBoxLayout( pickLay );
1416 cp = new QColorPicker( dialog );
1417 cp->setFrameStyle( QFrame::Panel + QFrame::Sunken );
1418 cLay->addSpacing( lumSpace );
1419 cLay->addWidget( cp );
1420 cLay->addSpacing( lumSpace );
1421
1422 lp = new QColorLuminancePicker( dialog );
1423 lp->setFixedWidth( 20 ); //###
1424 pickLay->addWidget( lp );
1425
1426 connect( cp, SIGNAL(newCol(int,int)), lp, SLOT(setCol(int,int)) );
1427 connect( lp, SIGNAL(newHsv(int,int,int)), this, SLOT(newHsv(int,int,int)) );
1428
1429 rightLay->addStretch();
1430
1431 cs = new QColorShower( dialog );
1432 connect( cs, SIGNAL(newCol(QRgb)), this, SLOT(newColorTypedIn(QRgb)));
1433 rightLay->addWidget( cs );
1434
1435 QHBoxLayout *buttons;
1436 if ( compact )
1437 buttons = new QHBoxLayout( rightLay );
1438 else
1439 buttons = new QHBoxLayout( leftLay );
1440
1441 QPushButton *ok, *cancel;
1442 ok = new QPushButton( QColorDialog::tr("OK"), dialog );
1443 connect( ok, SIGNAL(clicked()), dialog, SLOT(accept()) );
1444 ok->setDefault(TRUE);
1445 cancel = new QPushButton( QColorDialog::tr("Cancel"), dialog );
1446 connect( cancel, SIGNAL(clicked()), dialog, SLOT(reject()) );
1447 buttons->addWidget( ok );
1448 buttons->addWidget( cancel );
1449 buttons->addStretch();
1450
1451 if ( !compact ) {
1452 QPushButton *addCusBt = new QPushButton(
1453 QColorDialog::tr("&Add To Custom Colors"),
1454 dialog );
1455 rightLay->addWidget( addCusBt );
1456 connect( addCusBt, SIGNAL(clicked()), this, SLOT(addCustom()) );
1457 }
1458}
1459
1460void QColorDialogPrivate::addCustom()
1461{
1462 cusrgb[nextCust] = cs->currentColor();
1463 custom->repaint( FALSE ); //###
1464 nextCust = (nextCust+1) % 16;
1465}
1466
1467
1468// BEING REVISED: jo
1469/*!
1470 \class QColorDialog qcolordialog.h
1471 \brief The QColorDialog class provides a dialog widget for specifying colors.
1472 \ingroup dialogs
1473
1474 The color dialog's function is to allow users to choose colors -
1475 for instance, you might use this in a drawing program to allow the
1476 user to set the brush color.
1477
1478 This version of Qt only provides modal color dialogs. The static
1479 getColor() function shows the dialog and allows the user to specify a color,
1480 while getRgba() does the same but allows the user to specify a color with an
1481 alpha channel (transparency) value.
1482
1483 The user can store customCount() different custom colors. The custom
1484 colors are shared by all color dialogs, and remembered during the
1485 execution of the program. Use setCustomColor() to set the
1486 custom colors, and customColor() to get them.
1487
1488 <img src=qcolordlg-m.png> <img src=qcolordlg-w.png>
1489*/
1490
1491/*!
1492 Constructs a default color dialog. Use setColor() for setting an initial value.
1493
1494 \sa getColor()
1495*/
1496
1497QColorDialog::QColorDialog(QWidget* parent, const char* name, bool modal) :
1498 QDialog(parent, name, modal )
1499{
1500 setSizeGripEnabled( TRUE );
1501 d = new QColorDialogPrivate( this );
1502}
1503
1504
1505/*!
1506 Pops up a modal color dialog letting the user choose a color and returns
1507 that color. The color is initially set to \a initial. Returns an \link QColor::isValid() invalid\endlink color if the user cancels
1508 the dialog. All colors allocated by the dialog will be deallocated
1509 before this function returns.
1510*/
1511
1512QColor QColorDialog::getColor( QColor initial, QWidget *parent,
1513 const char *name )
1514{
1515 int allocContext = QColor::enterAllocContext();
1516 QColorDialog *dlg = new QColorDialog( parent, name, TRUE ); //modal
1517 if ( parent && parent->icon() && !parent->icon()->isNull() )
1518 dlg->setIcon( *parent->icon() );
1519 else if ( qApp->mainWidget() && qApp->mainWidget()->icon() && !qApp->mainWidget()->icon()->isNull() )
1520 dlg->setIcon( *qApp->mainWidget()->icon() );
1521
1522 dlg->setCaption( QColorDialog::tr( "Select color" ) );
1523 dlg->setColor( initial );
1524 int resultCode = dlg->exec();
1525 QColor::leaveAllocContext();
1526 QColor result;
1527 if ( resultCode == QDialog::Accepted )
1528 result = dlg->color();
1529 QColor::destroyAllocContext(allocContext);
1530 delete dlg;
1531 return result;
1532}
1533
1534
1535/*!
1536 Pops up a modal color dialog, letting the user choose a color and an
1537 alpha channel value. The color+alpha is initially set to \a initial.
1538
1539 If \a ok is non-null, \c *ok is set to TRUE if the user clicked OK,
1540 and FALSE if the user clicked Cancel.
1541
1542 If the user clicks Cancel the \a initial value is returned.
1543*/
1544
1545QRgb QColorDialog::getRgba( QRgb initial, bool *ok,
1546 QWidget *parent, const char* name )
1547{
1548 int allocContext = QColor::enterAllocContext();
1549 QColorDialog *dlg = new QColorDialog( parent, name, TRUE ); //modal
1550 dlg->setColor( initial );
1551 dlg->setSelectedAlpha( qAlpha(initial) );
1552 int resultCode = dlg->exec();
1553 QColor::leaveAllocContext();
1554 QRgb result = initial;
1555 if ( resultCode == QDialog::Accepted ) {
1556 QRgb c = dlg->color().rgb();
1557 int alpha = dlg->selectedAlpha();
1558 result = qRgba( qRed(c), qGreen(c), qBlue(c), alpha );
1559 }
1560 if ( ok )
1561 *ok = resultCode == QDialog::Accepted;
1562
1563 QColor::destroyAllocContext(allocContext);
1564 delete dlg;
1565 return result;
1566}
1567
1568
1569
1570
1571
1572/*!
1573 Returns the color currently selected in the dialog.
1574
1575 \sa setColor()
1576*/
1577
1578QColor QColorDialog::color() const
1579{
1580 return QColor(d->currentColor());
1581}
1582
1583
1584/*! Destructs the dialog and frees any memory it allocated.
1585
1586*/
1587
1588QColorDialog::~QColorDialog()
1589{
1590 //d inherits QObject, so it is deleted by Qt.
1591}
1592
1593
1594/*!
1595 Sets the color shown in the dialog to \a c.
1596
1597 \sa color()
1598*/
1599
1600void QColorDialog::setColor( QColor c )
1601{
1602 d->setCurrentColor( c.rgb() );
1603}
1604
1605
1606
1607
1608/*!
1609 Sets the initial alpha channel value to \a a, and show the alpha channel
1610 entry box.
1611*/
1612
1613void QColorDialog::setSelectedAlpha( int a )
1614{
1615 d->showAlpha( TRUE );
1616 d->setCurrentAlpha( a );
1617}
1618
1619
1620/*!
1621 Returns the value selected for the alpha channel.
1622*/
1623
1624int QColorDialog::selectedAlpha() const
1625{
1626 return d->currentAlpha();
1627}
1628
1629