alecs/plasma-framework
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Render SvgItem natively rather than going through QQuickPaintedItem

Browse Source
This commit is contained in:
David Edmundson 2014-02-19 18:09:51 +01:00
parent 1a55ac0c8c
commit 9851f8c789
2 changed files with 25 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

35
src/declarativeimports/core/svgitem.cpp
View File

@ -20,6 +20,10 @@
#include "svgitem.h"
#include <QPainter>
#include <QQuickWindow>
#include <QSGTexture>
#include <QSGSimpleTextureNode>
#include "QDebug"
#include "plasma/svg.h"
@ -28,7 +32,7 @@ namespace Plasma
{
SvgItem::SvgItem(QQuickItem *parent)
: QQuickPaintedItem(parent),
: QQuickItem(parent),
m_smooth(false)
{
setFlag(QQuickItem::ItemHasContents, true);
@ -110,7 +114,6 @@ void SvgItem::setSmooth(const bool smooth)
}
m_smooth = smooth;
emit smoothChanged();
update();
}
bool SvgItem::smooth() const
@ -118,22 +121,23 @@ bool SvgItem::smooth() const
return m_smooth;
}
void SvgItem::paint(QPainter *painter)
QSGNode* SvgItem::updatePaintNode(QSGNode* oldNode, UpdatePaintNodeData* updatePaintNodeData)
{
if (!m_svg) {
return;
Q_UNUSED(updatePaintNodeData);
QSGSimpleTextureNode *textureNode = static_cast<QSGSimpleTextureNode*>(oldNode);
if (!textureNode) {
textureNode = new QSGSimpleTextureNode;
}
//do without painter save, faster and the support can be compiled out
const bool wasAntiAlias = painter->testRenderHint(QPainter::Antialiasing);
const bool wasSmoothTransform = painter->testRenderHint(QPainter::SmoothPixmapTransform);
painter->setRenderHint(QPainter::Antialiasing, m_smooth);
painter->setRenderHint(QPainter::SmoothPixmapTransform, m_smooth);
//setContainsMultipleImages has to be done there since m_frameSvg can be shared with somebody else
m_svg.data()->setContainsMultipleImages(!m_elementID.isEmpty());
m_svg.data()->paint(painter, boundingRect(), m_elementID);
painter->setRenderHint(QPainter::Antialiasing, wasAntiAlias);
painter->setRenderHint(QPainter::SmoothPixmapTransform, wasSmoothTransform);
if (window() && m_svg) {
m_svg.data()->resize(width(), height());
//TODO make m_svg return a QImage so that we can avoid the deep copy in toImage();
const QPixmap pixmap = m_svg.data()->pixmap();
textureNode->setRect(0,0, pixmap.width(), pixmap.height());
textureNode->setTexture(window()->createTextureFromImage(pixmap.toImage()));
}
return textureNode;
}
void SvgItem::updateNeeded()
@ -144,6 +148,7 @@ void SvgItem::updateNeeded()
if (implicitHeight() <= 0) {
setImplicitHeight(naturalSize().height());
}
update();
}

9
src/declarativeimports/core/svgitem.h
View File

@ -19,13 +19,14 @@
#ifndef SVGITEM_P
#define SVGITEM_P
#include <QQuickPaintedItem>
#include <QQuickItem>
class QImage;
namespace Plasma {
class Svg;
class SvgItem : public QQuickPaintedItem
class SvgItem : public QQuickItem
{
Q_OBJECT
@ -81,14 +82,14 @@ public:
QSizeF naturalSize() const;
void paint(QPainter *painter);
void setImplicitWidth(qreal width);
qreal implicitWidth() const;
void setImplicitHeight(qreal height);
qreal implicitHeight() const;
QSGNode* updatePaintNode(QSGNode * oldNode, UpdatePaintNodeData * updatePaintNodeData);
Q_SIGNALS:
void elementIdChanged();
void svgChanged();