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0001 0002 /* 0003 Copyright (c) 2003-2007 Clarence Dang <dang@kde.org> 0004 All rights reserved. 0005 0006 Redistribution and use in source and binary forms, with or without 0007 modification, are permitted provided that the following conditions 0008 are met: 0009 0010 1. Redistributions of source code must retain the above copyright 0011 notice, this list of conditions and the following disclaimer. 0012 2. Redistributions in binary form must reproduce the above copyright 0013 notice, this list of conditions and the following disclaimer in the 0014 documentation and/or other materials provided with the distribution. 0015 0016 THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 0017 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 0018 OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 0019 IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 0020 INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 0021 NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 0022 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 0023 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 0024 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 0025 THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 0026 */ 0027 0028 0029 #define DEBUG_KP_TRANSPARENT_COLOR_CELL 0 0030 0031 0032 #include "kpTransparentColorCell.h" 0033 0034 #include "imagelib/kpColor.h" 0035 0036 #include <KLocalizedString> 0037 0038 #include <QContextMenuEvent> 0039 #include <QMouseEvent> 0040 #include <QPainter> 0041 0042 //--------------------------------------------------------------------- 0043 0044 kpTransparentColorCell::kpTransparentColorCell (QWidget *parent) 0045 : QFrame (parent) 0046 { 0047 setSizePolicy (QSizePolicy::Fixed/*horizontal*/, 0048 QSizePolicy::Fixed/*vertical*/); 0049 setFrameStyle (QFrame::Panel | QFrame::Sunken); 0050 0051 m_pixmap = QStringLiteral(":/icons/color_transparent_26x26"); 0052 0053 this->setToolTip( i18n ("Transparent")); 0054 } 0055 0056 //--------------------------------------------------------------------- 0057 0058 // public virtual [base QWidget] 0059 QSize kpTransparentColorCell::sizeHint () const 0060 { 0061 return {m_pixmap.width () + frameWidth () * 2, 0062 m_pixmap.height () + frameWidth () * 2}; 0063 } 0064 0065 //--------------------------------------------------------------------- 0066 0067 // protected virtual [base QWidget] 0068 void kpTransparentColorCell::mousePressEvent (QMouseEvent * /*e*/) 0069 { 0070 // Eat press so that we own the mouseReleaseEvent(). 0071 // [https://www.qt.io/blog/2006/05/27/mouse-event-propagation] 0072 // 0073 // However, contrary to that blog, it doesn't seem to be needed? 0074 } 0075 0076 //--------------------------------------------------------------------- 0077 0078 // protected virtual [base QWidget] 0079 void kpTransparentColorCell::contextMenuEvent (QContextMenuEvent *e) 0080 { 0081 // Eat right-mouse press to prevent it from getting to the toolbar. 0082 e->accept (); 0083 } 0084 0085 //--------------------------------------------------------------------- 0086 0087 // protected virtual [base QWidget] 0088 void kpTransparentColorCell::mouseReleaseEvent (QMouseEvent *e) 0089 { 0090 if (rect ().contains (e->pos ())) 0091 { 0092 if (e->button () == Qt::LeftButton) 0093 { 0094 Q_EMIT transparentColorSelected (0); 0095 Q_EMIT foregroundColorChanged (kpColor::Transparent); 0096 } 0097 else if (e->button () == Qt::RightButton) 0098 { 0099 Q_EMIT transparentColorSelected (1); 0100 Q_EMIT backgroundColorChanged (kpColor::Transparent); 0101 } 0102 } 0103 } 0104 0105 //--------------------------------------------------------------------- 0106 0107 // protected virtual [base QWidget] 0108 void kpTransparentColorCell::paintEvent (QPaintEvent *e) 0109 { 0110 // Draw frame first. 0111 QFrame::paintEvent (e); 0112 0113 if (isEnabled ()) 0114 { 0115 #if DEBUG_KP_TRANSPARENT_COLOR_CELL 0116 qCDebug(kpLogWidgets) << "kpTransparentColorCell::paintEvent() contentsRect=" 0117 << contentsRect () 0118 << endl; 0119 #endif 0120 QPainter p (this); 0121 p.drawPixmap (contentsRect (), m_pixmap); 0122 } 0123 } 0124 0125 //--------------------------------------------------------------------- 0126 0127 #include "moc_kpTransparentColorCell.cpp"