00001
00002
00003
00004
00005
00006
00007
00008
00009
00010
00011
00012
00013
00014
00015
00016
00017
00018
00019
00020 #include "kexiarrowtip.h"
00021
00022 #include <qpixmap.h>
00023 #include <qbitmap.h>
00024 #include <qpainter.h>
00025 #include <qimage.h>
00026 #include <qtooltip.h>
00027 #include <qfont.h>
00028 #include <qfontmetrics.h>
00029 #include <qtimer.h>
00030
00031
00032 KexiArrowTip::KexiArrowTip(const QString& text, QWidget* parent)
00033 : KexiToolTip(text, parent)
00034 , m_opacity(0.0)
00035 {
00036 QPalette pal( palette() );
00037 QColorGroup cg(pal.active());
00038 cg.setColor(QColorGroup::Foreground, Qt::red);
00039 pal.setActive(cg);
00040 setPalette(pal);
00041
00042 QFontMetrics fm(font());
00043 QSize sz(fm.boundingRect(m_value.toString()).size());
00044 sz += QSize(14, 10);
00045 m_arrowHeight = sz.height()/2;
00046 sz += QSize(0, m_arrowHeight);
00047 resize(sz);
00048
00049 setAutoMask( false );
00050
00051
00052 QPixmap maskPm(size());
00053 maskPm.fill( black );
00054 QPainter maskPainter(&maskPm);
00055 drawFrame(maskPainter);
00056 QImage maskImg( maskPm.convertToImage() );
00057 QBitmap bm;
00058 bm = maskImg.createHeuristicMask();
00059 setMask( bm );
00060 }
00061
00062 KexiArrowTip::~KexiArrowTip()
00063 {
00064 }
00065
00066 void KexiArrowTip::show()
00067 {
00068 if (isVisible())
00069 return;
00070
00071 m_opacity = 0.0;
00072 setWindowOpacity(0.0);
00073 KexiToolTip::show();
00074 increaseOpacity();
00075 }
00076
00077 void KexiArrowTip::hide()
00078 {
00079 if (!isVisible())
00080 return;
00081
00082 decreaseOpacity();
00083 }
00084
00085 void KexiArrowTip::increaseOpacity()
00086 {
00087 m_opacity += 0.10;
00088 setWindowOpacity(m_opacity);
00089 if (m_opacity < 1.0)
00090 QTimer::singleShot(25, this, SLOT(increaseOpacity()));
00091 }
00092
00093 void KexiArrowTip::decreaseOpacity()
00094 {
00095 if (m_opacity<=0.0) {
00096 KexiToolTip::close();
00097 m_opacity = 0.0;
00098 return;
00099 }
00100 m_opacity -= 0.10;
00101 setWindowOpacity(m_opacity);
00102 QTimer::singleShot(25, this, SLOT(decreaseOpacity()));
00103 }
00104
00105 bool KexiArrowTip::close ( bool alsoDelete )
00106 {
00107 if (!isVisible()) {
00108 return KexiToolTip::close(alsoDelete);
00109 }
00110 if (m_opacity>0.0)
00111 decreaseOpacity();
00112 else
00113 return KexiToolTip::close(alsoDelete);
00114 return m_opacity<=0.0;
00115 }
00116
00117 void KexiArrowTip::drawContents(QPainter& p)
00118 {
00119 p.setPen( QPen(palette().active().foreground(), 1) );
00120 p.drawText(QRect(0,m_arrowHeight,width(),height()-m_arrowHeight),
00121 Qt::AlignCenter, m_value.toString());
00122 }
00123
00124 void KexiArrowTip::drawFrame(QPainter& p)
00125 {
00126 QPen pen(palette().active().foreground(), 1, Qt::SolidLine, Qt::SquareCap, Qt::MiterJoin);
00127 p.setPen( pen );
00128
00129
00130
00131
00132
00133
00134
00135 const int arrowOffset = 5;
00136 QPointArray pa(8);
00137 pa.setPoint(0, 0, m_arrowHeight-1);
00138 pa.setPoint(1, 0, height()-1);
00139 pa.setPoint(2, width()-1, height()-1);
00140 pa.setPoint(3, width()-1, m_arrowHeight-1);
00141 pa.setPoint(4, arrowOffset+m_arrowHeight+m_arrowHeight-2, m_arrowHeight-1);
00142 pa.setPoint(5, arrowOffset+m_arrowHeight-1, 0);
00143 pa.setPoint(6, arrowOffset, m_arrowHeight-1);
00144 pa.setPoint(7, 0, m_arrowHeight-1);
00145 p.drawPolyline(pa);
00146
00147 pa.resize(12);
00148 pa.setPoint(0, 1, m_arrowHeight);
00149 pa.setPoint(1, 1, height()-2);
00150 pa.setPoint(2, width()-2, height()-2);
00151 pa.setPoint(3, width()-2, m_arrowHeight);
00152 pa.setPoint(4, arrowOffset+m_arrowHeight+m_arrowHeight-2, m_arrowHeight);
00153 pa.setPoint(5, arrowOffset+m_arrowHeight-1, 1);
00154 pa.setPoint(6, arrowOffset, m_arrowHeight);
00155 pa.setPoint(7, 0, m_arrowHeight);
00156 pa.setPoint(8, arrowOffset+1, m_arrowHeight);
00157 pa.setPoint(9, arrowOffset+m_arrowHeight-1, 2);
00158 pa.setPoint(10, arrowOffset+m_arrowHeight+m_arrowHeight-3, m_arrowHeight);
00159 pa.setPoint(11, width()-2, m_arrowHeight);
00160 p.drawPolyline(pa);
00161 }
00162
00163 #include "kexiarrowtip.moc"