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Code Issues Releases Wiki Activity

Handle our own Arrow Drawing.

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Adds AntiAliasing and uses our own colors.
This commit is contained in:
Casey Link 2011-08-26 19:47:11 -05:00
parent ccc8d3b26a
commit ec2dec4faf
3 changed files with 92 additions and 3 deletions
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90
src/libtomahawk/utils/stylehelper.cpp
View File

@ -19,7 +19,8 @@
#include "stylehelper.h"
#include <QPainter>
#include <QPixmapCache>
#include <QApplication>
QColor StyleHelper::headerUpperColor()
{
@ -61,3 +62,90 @@ QColor StyleHelper::headerTextColor()
{
return Qt::white;
}
/*
* This implementation is from QWindowsStyle (Qt 7.2)
*
* It is licensed under the GPL 3:
* Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
* Contact: Nokia Corporation (qt-info@nokia.com)
*/
void StyleHelper::drawArrow(QStyle::PrimitiveElement element, QPainter *p, const QStyleOption *opt)
{
if (opt->rect.width() <= 1 || opt->rect.height() <= 1)
return;
QRect r = opt->rect;
int size = qMin(r.height(), r.width());
QPixmap pixmap;
QString pixmapName;
pixmapName.sprintf("arrow-%s-%d-%d-%d-%lld",
"$qt_ia",
uint(opt->state), element,
size, opt->palette.cacheKey());
if (!QPixmapCache::find(pixmapName, pixmap)) {
int border = size/5;
int sqsize = 2*(size/2);
QImage image(sqsize, sqsize, QImage::Format_ARGB32);
image.fill(0);
QPainter imagePainter(&image);
imagePainter.setRenderHint(QPainter::Antialiasing, true);
QPolygon a;
switch (element) {
case QStyle::PE_IndicatorArrowUp:
a.setPoints(3, border, sqsize/2, sqsize/2, border, sqsize - border, sqsize/2);
break;
case QStyle::PE_IndicatorArrowDown:
a.setPoints(3, border, sqsize/2, sqsize/2, sqsize - border, sqsize - border, sqsize/2);
break;
case QStyle::PE_IndicatorArrowRight:
a.setPoints(3, sqsize - border, sqsize/2, sqsize/2, border, sqsize/2, sqsize - border);
break;
case QStyle::PE_IndicatorArrowLeft:
a.setPoints(3, border, sqsize/2, sqsize/2, border, sqsize/2, sqsize - border);
break;
default:
break;
}
int bsx = 0;
int bsy = 0;
if (opt->state & QStyle::State_Sunken) {
bsx = qApp->style()->pixelMetric(QStyle::PM_ButtonShiftHorizontal);
bsy = qApp->style()->pixelMetric(QStyle::PM_ButtonShiftVertical);
}
QRect bounds = a.boundingRect();
int sx = sqsize / 2 - bounds.center().x() - 1;
int sy = sqsize / 2 - bounds.center().y() - 1;
imagePainter.translate(sx + bsx, sy + bsy);
imagePainter.setPen(opt->palette.buttonText().color());
imagePainter.setBrush(opt->palette.buttonText());
if (!(opt->state & QStyle::State_Enabled)) {
QColor foreGround(150, 150, 150, 150);
imagePainter.setBrush(opt->palette.mid().color());
imagePainter.setPen(opt->palette.mid().color());
} else {
QColor shadow(0, 0, 0, 100);
imagePainter.translate(0, 1);
imagePainter.setPen(shadow);
imagePainter.setBrush(shadow);
QColor foreGround(255, 255, 255, 210);
imagePainter.drawPolygon(a);
imagePainter.translate(0, -1);
imagePainter.setPen(foreGround);
imagePainter.setBrush(foreGround);
}
imagePainter.drawPolygon(a);
imagePainter.end();
pixmap = QPixmap::fromImage(image);
QPixmapCache::insert(pixmapName, pixmap);
}
int xOffset = r.x() + (r.width() - size)/2;
int yOffset = r.y() + (r.height() - size)/2;
p->drawPixmap(xOffset, yOffset, pixmap);
}

2
src/libtomahawk/utils/stylehelper.h
View File

@ -22,6 +22,7 @@
#include <QColor>
#include <QStyle>
#include <QStyleOption>
class QPalette;
class QPainter;
@ -36,6 +37,7 @@ public:
static QColor headerHighlightColor();
static void horizontalHeader(QPainter *painter, const QRect &rect);
static void drawArrow(QStyle::PrimitiveElement, QPainter *painter, const QStyleOption *opt);
private:
static QColor m_baseColor;
static QColor m_requestedBaseColor;

3
src/libtomahawk/widgets/combobox.cpp
View File

@ -74,7 +74,6 @@ void ComboBox::paintEvent(QPaintEvent *)
QStyleOption arrowOpt = cb;
arrowOpt.rect = arrowRect;
//p.drawPrimitive(QStyle::PE_IndicatorArrowDown, arrowOpt);
//Utils::StyleHelper::drawArrow(QStyle::PE_IndicatorArrowDown, &p, &arrowOpt);
StyleHelper::drawArrow(QStyle::PE_IndicatorArrowDown, &p, &arrowOpt);
}