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Diffstat (limited to 'src/dialogs/qcolordialog.cpp')
| -rw-r--r-- | src/dialogs/qcolordialog.cpp | 1659 |
1 files changed, 1659 insertions, 0 deletions
diff --git a/src/dialogs/qcolordialog.cpp b/src/dialogs/qcolordialog.cpp new file mode 100644 index 0000000..44bf70e --- /dev/null +++ b/src/dialogs/qcolordialog.cpp @@ -0,0 +1,1659 @@ +/**************************************************************************** +** +** Implementation of QColorDialog class +** +** Created : 990222 +** +** Copyright (C) 1999-2008 Trolltech ASA. All rights reserved. +** +** This file is part of the dialogs module of the Qt GUI Toolkit. +** +** This file may be used under the terms of the GNU General +** Public License versions 2.0 or 3.0 as published by the Free +** Software Foundation and appearing in the files LICENSE.GPL2 +** and LICENSE.GPL3 included in the packaging of this file. +** Alternatively you may (at your option) use any later version +** of the GNU General Public License if such license has been +** publicly approved by Trolltech ASA (or its successors, if any) +** and the KDE Free Qt Foundation. +** +** Please review the following information to ensure GNU General +** Public Licensing requirements will be met: +** http://trolltech.com/products/qt/licenses/licensing/opensource/. +** If you are unsure which license is appropriate for your use, please +** review the following information: +** http://trolltech.com/products/qt/licenses/licensing/licensingoverview +** or contact the sales department at [email protected]. +** +** This file may be used under the terms of the Q Public License as +** defined by Trolltech ASA and appearing in the file LICENSE.QPL +** included in the packaging of this file. Licensees holding valid Qt +** Commercial licenses may use this file in accordance with the Qt +** Commercial License Agreement provided with the Software. +** +** This file is provided "AS IS" with NO WARRANTY OF ANY KIND, +** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted +** herein. +** +**********************************************************************/ + +#include "qcolordialog.h" + +#ifndef QT_NO_COLORDIALOG + +#include "qpainter.h" +#include "qlayout.h" +#include "qlabel.h" +#include "qpushbutton.h" +#include "qlineedit.h" +#include "qimage.h" +#include "qpixmap.h" +#include "qdrawutil.h" +#include "qvalidator.h" +#include "qdragobject.h" +#include "qgridview.h" +#include "qapplication.h" +#include "qstyle.h" +#include "qsettings.h" +#include "qpopupmenu.h" + +#ifdef Q_WS_MAC +QRgb macGetRgba( QRgb initial, bool *ok, QWidget *parent, const char* name ); +QColor macGetColor( const QColor& initial, QWidget *parent, const char *name ); +#endif + +//////////// QWellArray BEGIN + +struct QWellArrayData; + +class QWellArray : public QGridView +{ + Q_OBJECT + Q_PROPERTY( int selectedColumn READ selectedColumn ) + Q_PROPERTY( int selectedRow READ selectedRow ) + +public: + QWellArray( QWidget* parent=0, const char* name=0, bool popup = FALSE ); + + ~QWellArray() {} + QString cellContent( int row, int col ) const; + // ### Paul !!! virtual void setCellContent( int row, int col, const QString &); + + int selectedColumn() const { return selCol; } + int selectedRow() const { return selRow; } + + virtual void setCurrent( int row, int col ); + virtual void setSelected( int row, int col ); + + QSize sizeHint() const; + + virtual void setCellBrush( int row, int col, const QBrush & ); + QBrush cellBrush( int row, int col ); + +signals: + void selected( int row, int col ); + +protected: + void dimensionChange( int oldRows, int oldCols ); + + virtual void paintCell( QPainter *, int row, int col ); + virtual void paintCellContents( QPainter *, int row, int col, const QRect& ); + + void mousePressEvent( QMouseEvent* ); + void mouseReleaseEvent( QMouseEvent* ); + void mouseMoveEvent( QMouseEvent* ); + void keyPressEvent( QKeyEvent* ); + void focusInEvent( QFocusEvent* ); + void focusOutEvent( QFocusEvent* ); + +private: + int curRow; + int curCol; + int selRow; + int selCol; + bool smallStyle; + QWellArrayData *d; + +private: // Disabled copy constructor and operator= +#if defined(Q_DISABLE_COPY) + QWellArray( const QWellArray & ); + QWellArray& operator=( const QWellArray & ); +#endif +}; + + + +// non-interface ... + + + +struct QWellArrayData { + QBrush *brush; +}; + +/*! + \internal + \class QWellArray qwellarray_p.h + \brief The QWellArray class provides a well array. + + + \ingroup advanced +*/ + +QWellArray::QWellArray( QWidget *parent, const char * name, bool popup ) + : QGridView( parent, name, + (popup ? (WStyle_Customize|WStyle_Tool|WStyle_NoBorder) : 0 ) ) +{ + d = 0; + setFocusPolicy( StrongFocus ); + setVScrollBarMode(AlwaysOff); + setHScrollBarMode(AlwaysOff); + viewport()->setBackgroundMode( PaletteBackground ); + setNumCols( 7 ); + setNumRows( 7 ); + setCellWidth( 24 ); + setCellHeight( 21 ); + smallStyle = popup; + + if ( popup ) { + setCellWidth( 18 ); + setCellHeight( 18 ); + setFrameStyle(QFrame::StyledPanel | QFrame::Raised); + setMargin( 1 ); + setLineWidth( 2 ); + } else { + setFrameStyle( QFrame::NoFrame ); + } + curCol = 0; + curRow = 0; + selCol = -1; + selRow = -1; + + if ( smallStyle ) + setMouseTracking( TRUE ); +} + + +QSize QWellArray::sizeHint() const +{ + constPolish(); + QSize s = gridSize().boundedTo( QSize(640, 480 ) ); + return QSize( s.width() + 2*frameWidth(), s.height() + 2*frameWidth() ); +} + + +void QWellArray::paintCell( QPainter* p, int row, int col ) +{ + int w = cellWidth(); // width of cell in pixels + int h = cellHeight(); // height of cell in pixels + int b = 1; + + if ( !smallStyle ) + b = 3; + + const QColorGroup & g = colorGroup(); + p->setPen( QPen( black, 0, SolidLine ) ); + if ( !smallStyle && row ==selRow && col == selCol && + style().styleHint(QStyle::SH_GUIStyle) != MotifStyle) { + int n = 2; + p->drawRect( n, n, w-2*n, h-2*n ); + } + + style().drawPrimitive(QStyle::PE_Panel, p, QRect(b, b, w-2*b, h-2*b), g, + QStyle::Style_Enabled | QStyle::Style_Sunken); + + int t = 0; + if (style().styleHint(QStyle::SH_GUIStyle) == MotifStyle) + t = ( row == selRow && col == selCol ) ? 2 : 0; + b += 2 + t; + + if ( (row == curRow) && (col == curCol) ) { + if ( smallStyle ) { + p->setPen ( white ); + p->drawRect( 1, 1, w-2, h-2 ); + p->setPen ( black ); + p->drawRect( 0, 0, w, h ); + p->drawRect( 2, 2, w-4, h-4 ); + b = 3; + } else if ( hasFocus() ) { + style().drawPrimitive(QStyle::PE_FocusRect, p, QRect(0, 0, w, h), g); + } + } + paintCellContents( p, row, col, QRect(b, b, w - 2*b, h - 2*b) ); +} + +/*! + Reimplement this function to change the contents of the well array. + */ +void QWellArray::paintCellContents( QPainter *p, int row, int col, const QRect &r ) +{ + + if ( d ) { + p->fillRect( r, d->brush[row*numCols()+col] ); + } else { + p->fillRect( r, white ); + p->setPen( black ); + p->drawLine( r.topLeft(), r.bottomRight() ); + p->drawLine( r.topRight(), r.bottomLeft() ); + } +} + + +/*\reimp +*/ +void QWellArray::mousePressEvent( QMouseEvent* e ) +{ + // The current cell marker is set to the cell the mouse is pressed + // in. + QPoint pos = e->pos(); + setCurrent( rowAt( pos.y() ), columnAt( pos.x() ) ); +} + +/*\reimp +*/ +void QWellArray::mouseReleaseEvent( QMouseEvent* ) +{ + // The current cell marker is set to the cell the mouse is clicked + // in. + setSelected( curRow, curCol ); +} + + +/*\reimp +*/ +void QWellArray::mouseMoveEvent( QMouseEvent* e ) +{ + // The current cell marker is set to the cell the mouse is + // clicked in. + if ( smallStyle ) { + QPoint pos = e->pos(); + setCurrent( rowAt( pos.y() ), columnAt( pos.x() ) ); + } +} + +/* + Sets the cell currently having the focus. This is not necessarily + the same as the currently selected cell. +*/ + +void QWellArray::setCurrent( int row, int col ) +{ + + if ( (curRow == row) && (curCol == col) ) + return; + + if ( row < 0 || col < 0 ) + row = col = -1; + + int oldRow = curRow; + int oldCol = curCol; + + curRow = row; + curCol = col; + + updateCell( oldRow, oldCol ); + updateCell( curRow, curCol ); +} + + +/*! + Sets the currently selected cell to \a row, \a col. If \a row or \a + col are less than zero, the current cell is unselected. + + Does not set the position of the focus indicator. +*/ + +void QWellArray::setSelected( int row, int col ) +{ + if ( (selRow == row) && (selCol == col) ) + return; + + int oldRow = selRow; + int oldCol = selCol; + + if ( row < 0 || col < 0 ) + row = col = -1; + + selCol = col; + selRow = row; + + updateCell( oldRow, oldCol ); + updateCell( selRow, selCol ); + if ( row >= 0 ) + emit selected( row, col ); + + if ( isVisible() && ::qt_cast<QPopupMenu*>(parentWidget()) ) + parentWidget()->close(); +} + + + +/*!\reimp +*/ +void QWellArray::focusInEvent( QFocusEvent* ) +{ + updateCell( curRow, curCol ); +} + + +/*! + Sets the size of the well array to be \a rows cells by \a cols. + Resets any brush information set by setCellBrush(). + */ +void QWellArray::dimensionChange( int, int ) +{ + if ( d ) { + if ( d->brush ) + delete[] d->brush; + delete d; + d = 0; + } +} + +void QWellArray::setCellBrush( int row, int col, const QBrush &b ) +{ + if ( !d ) { + d = new QWellArrayData; + int i = numRows()*numCols(); + d->brush = new QBrush[i]; + } + if ( row >= 0 && row < numRows() && col >= 0 && col < numCols() ) + d->brush[row*numCols()+col] = b; +#ifdef QT_CHECK_RANGE + else + qWarning( "QWellArray::setCellBrush( %d, %d ) out of range", row, col ); +#endif +} + + + +/*! + Returns the brush set for the cell at \a row, \a col. If no brush is set, + \c NoBrush is returned. +*/ + +QBrush QWellArray::cellBrush( int row, int col ) +{ + if ( d && row >= 0 && row < numRows() && col >= 0 && col < numCols() ) + return d->brush[row*numCols()+col]; + return NoBrush; +} + + + +/*!\reimp +*/ + +void QWellArray::focusOutEvent( QFocusEvent* ) +{ + updateCell( curRow, curCol ); +} + +/*\reimp +*/ +void QWellArray::keyPressEvent( QKeyEvent* e ) +{ + switch( e->key() ) { // Look at the key code + case Key_Left: // If 'left arrow'-key, + if( curCol > 0 ) // and cr't not in leftmost col + setCurrent( curRow, curCol - 1); // set cr't to next left column + break; + case Key_Right: // Correspondingly... + if( curCol < numCols()-1 ) + setCurrent( curRow, curCol + 1); + break; + case Key_Up: + if( curRow > 0 ) + setCurrent( curRow - 1, curCol); + else if ( smallStyle ) + focusNextPrevChild( FALSE ); + break; + case Key_Down: + if( curRow < numRows()-1 ) + setCurrent( curRow + 1, curCol); + else if ( smallStyle ) + focusNextPrevChild( TRUE ); + break; + case Key_Space: + case Key_Return: + case Key_Enter: + setSelected( curRow, curCol ); + break; + default: // If not an interesting key, + e->ignore(); // we don't accept the event + return; + } + +} + +//////////// QWellArray END + +static bool initrgb = FALSE; +static QRgb stdrgb[6*8]; +static QRgb cusrgb[2*8]; +static bool customSet = FALSE; + + +static void initRGB() +{ + if ( initrgb ) + return; + initrgb = TRUE; + int i = 0; + for ( int g = 0; g < 4; g++ ) + for ( int r = 0; r < 4; r++ ) + for ( int b = 0; b < 3; b++ ) + stdrgb[i++] = qRgb( r*255/3, g*255/3, b*255/2 ); + + for ( i = 0; i < 2*8; i++ ) + cusrgb[i] = qRgb(0xff,0xff,0xff); +} + +/*! + Returns the number of custom colors supported by QColorDialog. All + color dialogs share the same custom colors. +*/ +int QColorDialog::customCount() +{ + return 2*8; +} + +/*! + Returns custom color number \a i as a QRgb. +*/ +QRgb QColorDialog::customColor( int i ) +{ + initRGB(); + if ( i < 0 || i >= customCount() ) { +#ifdef QT_CHECK_RANGE + qWarning( "QColorDialog::customColor() index %d out of range", i ); +#endif + i = 0; + } + return cusrgb[i]; +} + +/*! + Sets custom color number \a i to the QRgb value \a c. +*/ +void QColorDialog::setCustomColor( int i, QRgb c ) +{ + initRGB(); + if ( i < 0 || i >= customCount() ) { +#ifdef QT_CHECK_RANGE + qWarning( "QColorDialog::setCustomColor() index %d out of range", i ); +#endif + return; + } + customSet = TRUE; + cusrgb[i] = c; +} + +/*! + Sets standard color number \a i to the QRgb value \a c. +*/ + +void QColorDialog::setStandardColor( int i, QRgb c ) +{ + initRGB(); + if ( i < 0 || i >= 6*8 ) { +#ifdef QT_CHECK_RANGE + qWarning( "QColorDialog::setStandardColor() index %d out of range", i ); +#endif + return; + } + stdrgb[i] = c; +} + +static inline void rgb2hsv( QRgb rgb, int&h, int&s, int&v ) +{ + QColor c; + c.setRgb( rgb ); + c.getHsv(h,s,v); +} + +class QColorWell : public QWellArray +{ +public: + QColorWell( QWidget *parent, int r, int c, QRgb *vals ) + :QWellArray( parent, "" ), values( vals ), mousePressed( FALSE ), oldCurrent( -1, -1 ) + { setNumRows(r), setNumCols(c); setSizePolicy( QSizePolicy( QSizePolicy::Minimum, QSizePolicy::Minimum) ); } + +protected: + void paintCellContents( QPainter *, int row, int col, const QRect& ); + void mousePressEvent( QMouseEvent *e ); + void mouseMoveEvent( QMouseEvent *e ); + void mouseReleaseEvent( QMouseEvent *e ); +#ifndef QT_NO_DRAGANDDROP + void dragEnterEvent( QDragEnterEvent *e ); + void dragLeaveEvent( QDragLeaveEvent *e ); + void dragMoveEvent( QDragMoveEvent *e ); + void dropEvent( QDropEvent *e ); +#endif + +private: + QRgb *values; + bool mousePressed; + QPoint pressPos; + QPoint oldCurrent; + +}; + +void QColorWell::paintCellContents( QPainter *p, int row, int col, const QRect &r ) +{ + int i = row + col*numRows(); + p->fillRect( r, QColor( values[i] ) ); +} + +void QColorWell::mousePressEvent( QMouseEvent *e ) +{ + oldCurrent = QPoint( selectedRow(), selectedColumn() ); + QWellArray::mousePressEvent( e ); + mousePressed = TRUE; + pressPos = e->pos(); +} + +void QColorWell::mouseMoveEvent( QMouseEvent *e ) +{ + QWellArray::mouseMoveEvent( e ); +#ifndef QT_NO_DRAGANDDROP + if ( !mousePressed ) + return; + if ( ( pressPos - e->pos() ).manhattanLength() > QApplication::startDragDistance() ) { + setCurrent( oldCurrent.x(), oldCurrent.y() ); + int i = rowAt(pressPos.y()) + columnAt(pressPos.x()) * numRows(); + QColor col( values[ i ] ); + QColorDrag *drg = new QColorDrag( col, this ); + QPixmap pix( cellWidth(), cellHeight() ); + pix.fill( col ); + QPainter p( &pix ); + p.drawRect( 0, 0, pix.width(), pix.height() ); + p.end(); + drg->setPixmap( pix ); + mousePressed = FALSE; + drg->dragCopy(); + } +#endif +} + +#ifndef QT_NO_DRAGANDDROP +void QColorWell::dragEnterEvent( QDragEnterEvent *e ) +{ + setFocus(); + if ( QColorDrag::canDecode( e ) ) + e->accept(); + else + e->ignore(); +} + +void QColorWell::dragLeaveEvent( QDragLeaveEvent * ) +{ + if ( hasFocus() ) + parentWidget()->setFocus(); +} + +void QColorWell::dragMoveEvent( QDragMoveEvent *e ) +{ + if ( QColorDrag::canDecode( e ) ) { + setCurrent( rowAt( e->pos().y() ), columnAt( e->pos().x() ) ); + e->accept(); + } else + e->ignore(); +} + +void QColorWell::dropEvent( QDropEvent *e ) +{ + if ( QColorDrag::canDecode( e ) ) { + int i = rowAt( e->pos().y() ) + columnAt( e->pos().x() ) * numRows(); + QColor col; + QColorDrag::decode( e, col ); + values[ i ] = col.rgb(); + repaintContents( FALSE ); + e->accept(); + } else { + e->ignore(); + } +} + +#endif // QT_NO_DRAGANDDROP + +void QColorWell::mouseReleaseEvent( QMouseEvent *e ) +{ + if ( !mousePressed ) + return; + QWellArray::mouseReleaseEvent( e ); + mousePressed = FALSE; +} + +class QColorPicker : public QFrame +{ + Q_OBJECT +public: + QColorPicker(QWidget* parent=0, const char* name=0); + ~QColorPicker(); + +public slots: + void setCol( int h, int s ); + +signals: + void newCol( int h, int s ); + +protected: + QSize sizeHint() const; + void drawContents(QPainter* p); + void mouseMoveEvent( QMouseEvent * ); + void mousePressEvent( QMouseEvent * ); + +private: + int hue; + int sat; + + QPoint colPt(); + int huePt( const QPoint &pt ); + int satPt( const QPoint &pt ); + void setCol( const QPoint &pt ); + + QPixmap *pix; +}; + +static int pWidth = 200; +static int pHeight = 200; + +class QColorLuminancePicker : public QWidget +{ + Q_OBJECT +public: + QColorLuminancePicker(QWidget* parent=0, const char* name=0); + ~QColorLuminancePicker(); + +public slots: + void setCol( int h, int s, int v ); + void setCol( int h, int s ); + +signals: + void newHsv( int h, int s, int v ); + +protected: + void paintEvent( QPaintEvent*); + void mouseMoveEvent( QMouseEvent * ); + void mousePressEvent( QMouseEvent * ); + +private: + enum { foff = 3, coff = 4 }; //frame and contents offset + int val; + int hue; + int sat; + + int y2val( int y ); + int val2y( int val ); + void setVal( int v ); + + QPixmap *pix; +}; + + +int QColorLuminancePicker::y2val( int y ) +{ + int d = height() - 2*coff - 1; + return 255 - (y - coff)*255/d; +} + +int QColorLuminancePicker::val2y( int v ) +{ + int d = height() - 2*coff - 1; + return coff + (255-v)*d/255; +} + +QColorLuminancePicker::QColorLuminancePicker(QWidget* parent, + const char* name) + :QWidget( parent, name ) +{ + hue = 100; val = 100; sat = 100; + pix = 0; + // setBackgroundMode( NoBackground ); +} + +QColorLuminancePicker::~QColorLuminancePicker() +{ + delete pix; +} + +void QColorLuminancePicker::mouseMoveEvent( QMouseEvent *m ) +{ + setVal( y2val(m->y()) ); +} +void QColorLuminancePicker::mousePressEvent( QMouseEvent *m ) +{ + setVal( y2val(m->y()) ); +} + +void QColorLuminancePicker::setVal( int v ) +{ + if ( val == v ) + return; + val = QMAX( 0, QMIN(v,255)); + delete pix; pix=0; + repaint( FALSE ); //### + emit newHsv( hue, sat, val ); +} + +//receives from a hue,sat chooser and relays. +void QColorLuminancePicker::setCol( int h, int s ) +{ + setCol( h, s, val ); + emit newHsv( h, s, val ); +} + +void QColorLuminancePicker::paintEvent( QPaintEvent * ) +{ + int w = width() - 5; + + QRect r( 0, foff, w, height() - 2*foff ); + int wi = r.width() - 2; + int hi = r.height() - 2; + if ( !pix || pix->height() != hi || pix->width() != wi ) { + delete pix; + QImage img( wi, hi, 32 ); + int y; + for ( y = 0; y < hi; y++ ) { + QColor c( hue, sat, y2val(y+coff), QColor::Hsv ); + QRgb r = c.rgb(); + int x; + for ( x = 0; x < wi; x++ ) + img.setPixel( x, y, r ); + } + pix = new QPixmap; + pix->convertFromImage(img); + } + QPainter p(this); + p.drawPixmap( 1, coff, *pix ); + const QColorGroup &g = colorGroup(); + qDrawShadePanel( &p, r, g, TRUE ); + p.setPen( g.foreground() ); + p.setBrush( g.foreground() ); + QPointArray a; + int y = val2y(val); + a.setPoints( 3, w, y, w+5, y+5, w+5, y-5 ); + erase( w, 0, 5, height() ); + p.drawPolygon( a ); +} + +void QColorLuminancePicker::setCol( int h, int s , int v ) +{ + val = v; + hue = h; + sat = s; + delete pix; pix=0; + repaint( FALSE );//#### +} + +QPoint QColorPicker::colPt() +{ return QPoint( (360-hue)*(pWidth-1)/360, (255-sat)*(pHeight-1)/255 ); } +int QColorPicker::huePt( const QPoint &pt ) +{ return 360 - pt.x()*360/(pWidth-1); } +int QColorPicker::satPt( const QPoint &pt ) +{ return 255 - pt.y()*255/(pHeight-1) ; } +void QColorPicker::setCol( const QPoint &pt ) +{ setCol( huePt(pt), satPt(pt) ); } + +QColorPicker::QColorPicker(QWidget* parent, const char* name ) + : QFrame( parent, name ) +{ + hue = 0; sat = 0; + setCol( 150, 255 ); + + QImage img( pWidth, pHeight, 32 ); + int x,y; + for ( y = 0; y < pHeight; y++ ) + for ( x = 0; x < pWidth; x++ ) { + QPoint p( x, y ); + img.setPixel( x, y, QColor(huePt(p), satPt(p), + 200, QColor::Hsv).rgb() ); + } + pix = new QPixmap; + pix->convertFromImage(img); + setBackgroundMode( NoBackground ); + setSizePolicy( QSizePolicy( QSizePolicy::Fixed, QSizePolicy::Fixed ) ); +} + +QColorPicker::~QColorPicker() +{ + delete pix; +} + +QSize QColorPicker::sizeHint() const +{ + return QSize( pWidth + 2*frameWidth(), pHeight + 2*frameWidth() ); +} + +void QColorPicker::setCol( int h, int s ) +{ + int nhue = QMIN( QMAX(0,h), 360 ); + int nsat = QMIN( QMAX(0,s), 255); + if ( nhue == hue && nsat == sat ) + return; + QRect r( colPt(), QSize(20,20) ); + hue = nhue; sat = nsat; + r = r.unite( QRect( colPt(), QSize(20,20) ) ); + r.moveBy( contentsRect().x()-9, contentsRect().y()-9 ); + // update( r ); + repaint( r, FALSE ); +} + +void QColorPicker::mouseMoveEvent( QMouseEvent *m ) +{ + QPoint p = m->pos() - contentsRect().topLeft(); + setCol( p ); + emit newCol( hue, sat ); +} + +void QColorPicker::mousePressEvent( QMouseEvent *m ) +{ + QPoint p = m->pos() - contentsRect().topLeft(); + setCol( p ); + emit newCol( hue, sat ); +} + +void QColorPicker::drawContents(QPainter* p) +{ + QRect r = contentsRect(); + + p->drawPixmap( r.topLeft(), *pix ); + QPoint pt = colPt() + r.topLeft(); + p->setPen( QPen(black) ); + + p->fillRect( pt.x()-9, pt.y(), 20, 2, black ); + p->fillRect( pt.x(), pt.y()-9, 2, 20, black ); + +} + +class QColorShowLabel; + + + +class QColIntValidator: public QIntValidator +{ +public: + QColIntValidator( int bottom, int top, + QWidget * parent, const char *name = 0 ) + :QIntValidator( bottom, top, parent, name ) {} + + QValidator::State validate( QString &, int & ) const; +}; + +QValidator::State QColIntValidator::validate( QString &s, int &pos ) const +{ + State state = QIntValidator::validate(s,pos); + if ( state == Valid ) { + long int val = s.toLong(); + // This is not a general solution, assumes that top() > 0 and + // bottom >= 0 + if ( val < 0 ) { + s = "0"; + pos = 1; + } else if ( val > top() ) { + s.setNum( top() ); + pos = s.length(); + } + } + return state; +} + + + +class QColNumLineEdit : public QLineEdit +{ +public: + QColNumLineEdit( QWidget *parent, const char* name=0 ) + : QLineEdit( parent, name ) { setMaxLength( 3 );} + QSize sizeHint() const { + return QSize( fontMetrics().width( "999" ) + 2 * ( margin() + frameWidth() ), + QLineEdit::sizeHint().height() ); } + void setNum( int i ) { + QString s; + s.setNum(i); + bool block = signalsBlocked(); + blockSignals(TRUE); + setText( s ); + blockSignals(block); + } + int val() const { return text().toInt(); } +}; + + +class QColorShower : public QWidget +{ + Q_OBJECT +public: + QColorShower( QWidget *parent, const char *name=0 ); + + //things that don't emit signals + void setHsv( int h, int s, int v ); + + int currentAlpha() const { return alphaEd->val(); } + void setCurrentAlpha( int a ) { alphaEd->setNum( a ); } + void showAlpha( bool b ); + + + QRgb currentColor() const { return curCol; } + +public slots: + void setRgb( QRgb rgb ); + +signals: + void newCol( QRgb rgb ); +private slots: + void rgbEd(); + void hsvEd(); +private: + void showCurrentColor(); + int hue, sat, val; + QRgb curCol; + QColNumLineEdit *hEd; + QColNumLineEdit *sEd; + QColNumLineEdit *vEd; + QColNumLineEdit *rEd; + QColNumLineEdit *gEd; + QColNumLineEdit *bEd; + QColNumLineEdit *alphaEd; + QLabel *alphaLab; + QColorShowLabel *lab; + bool rgbOriginal; +}; + +class QColorShowLabel : public QFrame +{ + Q_OBJECT + +public: + QColorShowLabel( QWidget *parent ) : QFrame( parent, "qt_colorshow_lbl" ) { + setFrameStyle( QFrame::Panel|QFrame::Sunken ); + setBackgroundMode( PaletteBackground ); + setAcceptDrops( TRUE ); + mousePressed = FALSE; + } + void setColor( QColor c ) { col = c; } + +signals: + void colorDropped( QRgb ); + +protected: + void drawContents( QPainter *p ); + void mousePressEvent( QMouseEvent *e ); + void mouseMoveEvent( QMouseEvent *e ); + void mouseReleaseEvent( QMouseEvent *e ); +#ifndef QT_NO_DRAGANDDROP + void dragEnterEvent( QDragEnterEvent *e ); + void dragLeaveEvent( QDragLeaveEvent *e ); + void dropEvent( QDropEvent *e ); +#endif + +private: + QColor col; + bool mousePressed; + QPoint pressPos; + +}; + +void QColorShowLabel::drawContents( QPainter *p ) +{ + p->fillRect( contentsRect(), col ); +} + +void QColorShower::showAlpha( bool b ) +{ + if ( b ) { + alphaLab->show(); + alphaEd->show(); + } else { + alphaLab->hide(); + alphaEd->hide(); + } +} + +void QColorShowLabel::mousePressEvent( QMouseEvent *e ) +{ + mousePressed = TRUE; + pressPos = e->pos(); +} + +void QColorShowLabel::mouseMoveEvent( QMouseEvent *e ) +{ +#ifndef QT_NO_DRAGANDDROP + if ( !mousePressed ) + return; + if ( ( pressPos - e->pos() ).manhattanLength() > QApplication::startDragDistance() ) { + QColorDrag *drg = new QColorDrag( col, this ); + QPixmap pix( 30, 20 ); + pix.fill( col ); + QPainter p( &pix ); + p.drawRect( 0, 0, pix.width(), pix.height() ); + p.end(); + drg->setPixmap( pix ); + mousePressed = FALSE; + drg->dragCopy(); + } +#endif +} + +#ifndef QT_NO_DRAGANDDROP +void QColorShowLabel::dragEnterEvent( QDragEnterEvent *e ) +{ + if ( QColorDrag::canDecode( e ) ) + e->accept(); + else + e->ignore(); +} + +void QColorShowLabel::dragLeaveEvent( QDragLeaveEvent * ) +{ +} + +void QColorShowLabel::dropEvent( QDropEvent *e ) +{ + if ( QColorDrag::canDecode( e ) ) { + QColorDrag::decode( e, col ); + repaint( FALSE ); + emit colorDropped( col.rgb() ); + e->accept(); + } else { + e->ignore(); + } +} +#endif // QT_NO_DRAGANDDROP + +void QColorShowLabel::mouseReleaseEvent( QMouseEvent * ) +{ + if ( !mousePressed ) + return; + mousePressed = FALSE; +} + +QColorShower::QColorShower( QWidget *parent, const char *name ) + :QWidget( parent, name) +{ + curCol = qRgb( -1, -1, -1 ); + QColIntValidator *val256 = new QColIntValidator( 0, 255, this ); + QColIntValidator *val360 = new QColIntValidator( 0, 360, this ); + + QGridLayout *gl = new QGridLayout( this, 1, 1, 6 ); + lab = new QColorShowLabel( this ); + lab->setMinimumWidth( 60 ); //### + gl->addMultiCellWidget(lab, 0,-1,0,0); + connect( lab, SIGNAL( colorDropped(QRgb) ), + this, SIGNAL( newCol(QRgb) ) ); + connect( lab, SIGNAL( colorDropped(QRgb) ), + this, SLOT( setRgb(QRgb) ) ); + + hEd = new QColNumLineEdit( this, "qt_hue_edit" ); + hEd->setValidator( val360 ); + QLabel *l = new QLabel( hEd, QColorDialog::tr("Hu&e:"), this, "qt_hue_lbl" ); + l->setAlignment( AlignRight|AlignVCenter ); + gl->addWidget( l, 0, 1 ); + gl->addWidget( hEd, 0, 2 ); + + sEd = new QColNumLineEdit( this, "qt_sat_edit" ); + sEd->setValidator( val256 ); + l = new QLabel( sEd, QColorDialog::tr("&Sat:"), this, "qt_sat_lbl" ); + l->setAlignment( AlignRight|AlignVCenter ); + gl->addWidget( l, 1, 1 ); + gl->addWidget( sEd, 1, 2 ); + + vEd = new QColNumLineEdit( this, "qt_val_edit" ); + vEd->setValidator( val256 ); + l = new QLabel( vEd, QColorDialog::tr("&Val:"), this, "qt_val_lbl" ); + l->setAlignment( AlignRight|AlignVCenter ); + gl->addWidget( l, 2, 1 ); + gl->addWidget( vEd, 2, 2 ); + + rEd = new QColNumLineEdit( this, "qt_red_edit" ); + rEd->setValidator( val256 ); + l = new QLabel( rEd, QColorDialog::tr("&Red:"), this, "qt_red_lbl" ); + l->setAlignment( AlignRight|AlignVCenter ); + gl->addWidget( l, 0, 3 ); + gl->addWidget( rEd, 0, 4 ); + + gEd = new QColNumLineEdit( this, "qt_grn_edit" ); + gEd->setValidator( val256 ); + l = new QLabel( gEd, QColorDialog::tr("&Green:"), this, "qt_grn_lbl" ); + l->setAlignment( AlignRight|AlignVCenter ); + gl->addWidget( l, 1, 3 ); + gl->addWidget( gEd, 1, 4 ); + + bEd = new QColNumLineEdit( this, "qt_blue_edit" ); + bEd->setValidator( val256 ); + l = new QLabel( bEd, QColorDialog::tr("Bl&ue:"), this, "qt_blue_lbl" ); + l->setAlignment( AlignRight|AlignVCenter ); + gl->addWidget( l, 2, 3 ); + gl->addWidget( bEd, 2, 4 ); + + alphaEd = new QColNumLineEdit( this, "qt_aplha_edit" ); + alphaEd->setValidator( val256 ); + alphaLab = new QLabel( alphaEd, QColorDialog::tr("A&lpha channel:"), this, "qt_alpha_lbl" ); + alphaLab->setAlignment( AlignRight|AlignVCenter ); + gl->addMultiCellWidget( alphaLab, 3, 3, 1, 3 ); + gl->addWidget( alphaEd, 3, 4 ); + alphaEd->hide(); + alphaLab->hide(); + + connect( hEd, SIGNAL(textChanged(const QString&)), this, SLOT(hsvEd()) ); + connect( sEd, SIGNAL(textChanged(const QString&)), this, SLOT(hsvEd()) ); + connect( vEd, SIGNAL(textChanged(const QString&)), this, SLOT(hsvEd()) ); + + connect( rEd, SIGNAL(textChanged(const QString&)), this, SLOT(rgbEd()) ); + connect( gEd, SIGNAL(textChanged(const QString&)), this, SLOT(rgbEd()) ); + connect( bEd, SIGNAL(textChanged(const QString&)), this, SLOT(rgbEd()) ); + connect( alphaEd, SIGNAL(textChanged(const QString&)), this, SLOT(rgbEd()) ); +} + +void QColorShower::showCurrentColor() +{ + lab->setColor( currentColor() ); + lab->repaint(FALSE); //### +} + +void QColorShower::rgbEd() +{ + rgbOriginal = TRUE; + if ( alphaEd->isVisible() ) + curCol = qRgba( rEd->val(), gEd->val(), bEd->val(), currentAlpha() ); + else + curCol = qRgb( rEd->val(), gEd->val(), bEd->val() ); + + rgb2hsv(currentColor(), hue, sat, val ); + + hEd->setNum( hue ); + sEd->setNum( sat ); + vEd->setNum( val ); + + showCurrentColor(); + emit newCol( currentColor() ); +} + +void QColorShower::hsvEd() +{ + rgbOriginal = FALSE; + hue = hEd->val(); + sat = sEd->val(); + val = vEd->val(); + + curCol = QColor( hue, sat, val, QColor::Hsv ).rgb(); + + rEd->setNum( qRed(currentColor()) ); + gEd->setNum( qGreen(currentColor()) ); + bEd->setNum( qBlue(currentColor()) ); + + showCurrentColor(); + emit newCol( currentColor() ); +} + +void QColorShower::setRgb( QRgb rgb ) +{ + rgbOriginal = TRUE; + curCol = rgb; + + rgb2hsv( currentColor(), hue, sat, val ); + + hEd->setNum( hue ); + sEd->setNum( sat ); + vEd->setNum( val ); + + rEd->setNum( qRed(currentColor()) ); + gEd->setNum( qGreen(currentColor()) ); + bEd->setNum( qBlue(currentColor()) ); + + showCurrentColor(); +} + +void QColorShower::setHsv( int h, int s, int v ) +{ + rgbOriginal = FALSE; + hue = h; val = v; sat = s; //Range check### + curCol = QColor( hue, sat, val, QColor::Hsv ).rgb(); + + hEd->setNum( hue ); + sEd->setNum( sat ); + vEd->setNum( val ); + + rEd->setNum( qRed(currentColor()) ); + gEd->setNum( qGreen(currentColor()) ); + bEd->setNum( qBlue(currentColor()) ); + + showCurrentColor(); +} + +class QColorDialogPrivate : public QObject +{ +Q_OBJECT +public: + QColorDialogPrivate( QColorDialog *p ); + QRgb currentColor() const { return cs->currentColor(); } + void setCurrentColor( QRgb rgb ); + + int currentAlpha() const { return cs->currentAlpha(); } + void setCurrentAlpha( int a ) { cs->setCurrentAlpha( a ); } + void showAlpha( bool b ) { cs->showAlpha( b ); } + +public slots: + void addCustom(); + + void newHsv( int h, int s, int v ); + void newColorTypedIn( QRgb rgb ); + void newCustom( int, int ); + void newStandard( int, int ); +public: + QWellArray *custom; + QWellArray *standard; + + QColorPicker *cp; + QColorLuminancePicker *lp; + QColorShower *cs; + int nextCust; + bool compact; +}; + +//sets all widgets to display h,s,v +void QColorDialogPrivate::newHsv( int h, int s, int v ) +{ + cs->setHsv( h, s, v ); + cp->setCol( h, s ); + lp->setCol( h, s, v ); +} + +//sets all widgets to display rgb +void QColorDialogPrivate::setCurrentColor( QRgb rgb ) +{ + cs->setRgb( rgb ); + newColorTypedIn( rgb ); +} + +//sets all widgets exept cs to display rgb +void QColorDialogPrivate::newColorTypedIn( QRgb rgb ) +{ + int h, s, v; + rgb2hsv(rgb, h, s, v ); + cp->setCol( h, s ); + lp->setCol( h, s, v); +} + +void QColorDialogPrivate::newCustom( int r, int c ) +{ + int i = r+2*c; + setCurrentColor( cusrgb[i] ); + nextCust = i; + if (standard) + standard->setSelected(-1,-1); +} + +void QColorDialogPrivate::newStandard( int r, int c ) +{ + setCurrentColor( stdrgb[r+c*6] ); + if (custom) + custom->setSelected(-1,-1); +} + +QColorDialogPrivate::QColorDialogPrivate( QColorDialog *dialog ) : + QObject(dialog) +{ + compact = FALSE; + // small displays (e.g. PDAs cannot fit the full color dialog, + // so just use the color picker. + if ( qApp->desktop()->width() < 480 || qApp->desktop()->height() < 350 ) + compact = TRUE; + + nextCust = 0; + const int lumSpace = 3; + int border = 12; + if ( compact ) + border = 6; + QHBoxLayout *topLay = new QHBoxLayout( dialog, border, 6 ); + QVBoxLayout *leftLay = 0; + + if ( !compact ) + leftLay = new QVBoxLayout( topLay ); + + initRGB(); + + if ( !compact ) { + standard = new QColorWell( dialog, 6, 8, stdrgb ); + standard->setCellWidth( 28 ); + standard->setCellHeight( 24 ); + QLabel * lab = new QLabel( standard, + QColorDialog::tr( "&Basic colors"), dialog, "qt_basiccolors_lbl" ); + connect( standard, SIGNAL(selected(int,int)), SLOT(newStandard(int,int))); + leftLay->addWidget( lab ); + leftLay->addWidget( standard ); + + + leftLay->addStretch(); + + custom = new QColorWell( dialog, 2, 8, cusrgb ); + custom->setCellWidth( 28 ); + custom->setCellHeight( 24 ); + custom->setAcceptDrops( TRUE ); + + connect( custom, SIGNAL(selected(int,int)), SLOT(newCustom(int,int))); + lab = new QLabel( custom, QColorDialog::tr( "&Custom colors") , dialog, "qt_custcolors_lbl" ); + leftLay->addWidget( lab ); + leftLay->addWidget( custom ); + + QPushButton *custbut = + new QPushButton( QColorDialog::tr("&Define Custom Colors >>"), + dialog, "qt_def_custcolors_lbl" ); + custbut->setEnabled( FALSE ); + leftLay->addWidget( custbut ); + } else { + // better color picker size for small displays + pWidth = 150; + pHeight = 100; + + custom = 0; + standard = 0; + } + + QVBoxLayout *rightLay = new QVBoxLayout( topLay ); + + QHBoxLayout *pickLay = new QHBoxLayout( rightLay ); + + + QVBoxLayout *cLay = new QVBoxLayout( pickLay ); + cp = new QColorPicker( dialog, "qt_colorpicker" ); + cp->setFrameStyle( QFrame::Panel + QFrame::Sunken ); + cLay->addSpacing( lumSpace ); + cLay->addWidget( cp ); + cLay->addSpacing( lumSpace ); + + lp = new QColorLuminancePicker( dialog, "qt_luminance_picker" ); + lp->setFixedWidth( 20 ); //### + pickLay->addWidget( lp ); + + connect( cp, SIGNAL(newCol(int,int)), lp, SLOT(setCol(int,int)) ); + connect( lp, SIGNAL(newHsv(int,int,int)), this, SLOT(newHsv(int,int,int)) ); + + rightLay->addStretch(); + + cs = new QColorShower( dialog, "qt_colorshower" ); + connect( cs, SIGNAL(newCol(QRgb)), this, SLOT(newColorTypedIn(QRgb))); + rightLay->addWidget( cs ); + + QHBoxLayout *buttons; + if ( compact ) + buttons = new QHBoxLayout( rightLay ); + else + buttons = new QHBoxLayout( leftLay ); + + QPushButton *ok, *cancel; + ok = new QPushButton( QColorDialog::tr("OK"), dialog, "qt_ok_btn" ); + connect( ok, SIGNAL(clicked()), dialog, SLOT(accept()) ); + ok->setDefault(TRUE); + cancel = new QPushButton( QColorDialog::tr("Cancel"), dialog, "qt_cancel_btn" ); + connect( cancel, SIGNAL(clicked()), dialog, SLOT(reject()) ); + buttons->addWidget( ok ); + buttons->addWidget( cancel ); + buttons->addStretch(); + + if ( !compact ) { + QPushButton *addCusBt = new QPushButton( + QColorDialog::tr("&Add to Custom Colors"), + dialog, "qt_add_btn" ); + rightLay->addWidget( addCusBt ); + connect( addCusBt, SIGNAL(clicked()), this, SLOT(addCustom()) ); + } +} + +void QColorDialogPrivate::addCustom() +{ + cusrgb[nextCust] = cs->currentColor(); + if (custom) + custom->repaintContents( FALSE ); + nextCust = (nextCust+1) % 16; +} + + +/*! + \class QColorDialog qcolordialog.h + \brief The QColorDialog class provides a dialog widget for specifying colors. + \mainclass + \ingroup dialogs + \ingroup graphics + + The color dialog's function is to allow users to choose colors. + For example, you might use this in a drawing program to allow the + user to set the brush color. + + The static functions provide modal color dialogs. + \omit + If you require a modeless dialog, use the QColorDialog constructor. + \endomit + + The static getColor() function shows the dialog and allows the + user to specify a color. The getRgba() function does the same but + also allows the user to specify a color with an alpha channel + (transparency) value. + + The user can store customCount() different custom colors. The + custom colors are shared by all color dialogs, and remembered + during the execution of the program. Use setCustomColor() to set + the custom colors, and use customColor() to get them. + + \img qcolordlg-w.png +*/ + +/*! + Constructs a default color dialog with parent \a parent and called + \a name. If \a modal is TRUE the dialog will be modal. Use + setColor() to set an initial value. + + \sa getColor() +*/ + +QColorDialog::QColorDialog(QWidget* parent, const char* name, bool modal) : + QDialog(parent, name, modal, ( WType_Dialog | WStyle_Customize | WStyle_Title | + WStyle_DialogBorder | WStyle_SysMenu ) ) +{ + setSizeGripEnabled( FALSE ); + d = new QColorDialogPrivate( this ); + +#ifndef QT_NO_SETTINGS + if ( !customSet ) { + QSettings settings; + settings.insertSearchPath( QSettings::Windows, "/Trolltech" ); + for ( int i = 0; i < 2*8; ++i ) { + bool ok = FALSE; + QRgb rgb = (QRgb)settings.readNumEntry( "/Qt/customColors/" + QString::number( i ), 0, &ok ); + if ( ok ) + cusrgb[i] = rgb; + } + } +#endif +} + +/*! + Pops up a modal color dialog, lets the user choose a color, and + returns that color. The color is initially set to \a initial. The + dialog is a child of \a parent and is called \a name. It returns + an invalid (see QColor::isValid()) color if the user cancels the + dialog. All colors allocated by the dialog will be deallocated + before this function returns. +*/ + +QColor QColorDialog::getColor( const QColor& initial, QWidget *parent, + const char *name ) +{ +#if defined(Q_WS_MAC) + return macGetColor(initial, parent, name); +#endif + + int allocContext = QColor::enterAllocContext(); + QColorDialog *dlg = new QColorDialog( parent, name, TRUE ); //modal +#ifndef QT_NO_WIDGET_TOPEXTRA + dlg->setCaption( QColorDialog::tr( "Select color" ) ); +#endif + dlg->setColor( initial ); + dlg->selectColor( initial ); + int resultCode = dlg->exec(); + QColor::leaveAllocContext(); + QColor result; + if ( resultCode == QDialog::Accepted ) + result = dlg->color(); + QColor::destroyAllocContext(allocContext); + delete dlg; + return result; +} + + +/*! + Pops up a modal color dialog to allow the user to choose a color + and an alpha channel (transparency) value. The color+alpha is + initially set to \a initial. The dialog is a child of \a parent + and called \a name. + + If \a ok is non-null, \e *\a ok is set to TRUE if the user clicked + OK, and to FALSE if the user clicked Cancel. + + If the user clicks Cancel, the \a initial value is returned. +*/ + +QRgb QColorDialog::getRgba( QRgb initial, bool *ok, + QWidget *parent, const char* name ) +{ +#if defined(Q_WS_MAC) + return macGetRgba(initial, ok, parent, name); +#endif + + int allocContext = QColor::enterAllocContext(); + QColorDialog *dlg = new QColorDialog( parent, name, TRUE ); //modal + + Q_CHECK_PTR( dlg ); +#ifndef QT_NO_WIDGET_TOPEXTRA + dlg->setCaption( QColorDialog::tr( "Select color" ) ); +#endif + dlg->setColor( initial ); + dlg->selectColor( initial ); + dlg->setSelectedAlpha( qAlpha(initial) ); + int resultCode = dlg->exec(); + QColor::leaveAllocContext(); + QRgb result = initial; + if ( resultCode == QDialog::Accepted ) { + QRgb c = dlg->color().rgb(); + int alpha = dlg->selectedAlpha(); + result = qRgba( qRed(c), qGreen(c), qBlue(c), alpha ); + } + if ( ok ) + *ok = resultCode == QDialog::Accepted; + + QColor::destroyAllocContext(allocContext); + delete dlg; + return result; +} + + + + + +/*! + Returns the color currently selected in the dialog. + + \sa setColor() +*/ + +QColor QColorDialog::color() const +{ + return QColor(d->currentColor()); +} + + +/*! + Destroys the dialog and frees any memory it allocated. +*/ + +QColorDialog::~QColorDialog() +{ +#ifndef QT_NO_SETTINGS + if ( !customSet ) { + QSettings settings; + settings.insertSearchPath( QSettings::Windows, "/Trolltech" ); + for ( int i = 0; i < 2*8; ++i ) + settings.writeEntry( "/Qt/customColors/" + QString::number( i ), (int)cusrgb[i] ); + } +#endif +} + + +/*! + Sets the color shown in the dialog to \a c. + + \sa color() +*/ + +void QColorDialog::setColor( const QColor& c ) +{ + d->setCurrentColor( c.rgb() ); +} + + + + +/*! + Sets the initial alpha channel value to \a a, and shows the alpha + channel entry box. +*/ + +void QColorDialog::setSelectedAlpha( int a ) +{ + d->showAlpha( TRUE ); + d->setCurrentAlpha( a ); +} + + +/*! + Returns the value selected for the alpha channel. +*/ + +int QColorDialog::selectedAlpha() const +{ + return d->currentAlpha(); +} + +/*! + Sets focus to the corresponding button, if any. +*/ +bool QColorDialog::selectColor( const QColor& col ) +{ + QRgb color = col.rgb(); + int i = 0, j = 0; + // Check standard colors + if (d->standard) { + for ( i = 0; i < 6; i++ ) { + for ( j = 0; j < 8; j++ ) { + if ( color == stdrgb[i + j*6] ) { + d->newStandard( i, j ); + d->standard->setCurrent( i, j ); + d->standard->setSelected( i, j ); + d->standard->setFocus(); + return TRUE; + } + } + } + } + // Check custom colors + if (d->custom) { + for ( i = 0; i < 2; i++ ) { + for ( j = 0; j < 8; j++ ) { + if ( color == cusrgb[i + j*2] ) { + d->newCustom( i, j ); + d->custom->setCurrent( i, j ); + d->custom->setSelected( i, j ); + d->custom->setFocus(); + return TRUE; + } + } + } + } + return FALSE; +} + +#include "qcolordialog.moc" + +#endif |