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CodeGraphic: Small memory and performance improvements (#190)

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This commit is contained in:
Thomas (nezza-_-) Roth 2017-12-08 10:55:47 +01:00 committed by xarkes
parent 79b4aefd4e
commit 8e0deeb115
2 changed files with 22 additions and 7 deletions
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25
src/widgets/CodeGraphic.cpp
View File

@ -43,6 +43,8 @@ GraphicsBar::GraphicsBar(MainWindow *main, QWidget *parent) :
connect(Core(), SIGNAL(seekChanged(RVA)), this, SLOT(on_seekChanged(RVA)));
connect(Core(), SIGNAL(refreshAll()), this, SLOT(fetchAndPaintData()));
graphicsScene = new QGraphicsScene(this);
}
void GraphicsBar::paintEvent(QPaintEvent *event)
@ -50,7 +52,11 @@ void GraphicsBar::paintEvent(QPaintEvent *event)
Q_UNUSED(event);
QPainter painter(this);
this->fillData();
if(previousWidth != this->codeGraphic->width())
{
this->fillData();
previousWidth = this->codeGraphic->width();
}
}
void GraphicsBar::fetchAndPaintData()
@ -80,19 +86,20 @@ void GraphicsBar::fetchData()
void GraphicsBar::fillData()
{
qDeleteAll(graphicsScene->items());
int from = blockMaps.first()["from"].toInt();
int to = blockMaps.first()["to"].toInt();
// Prepare the graph scene
int w = this->codeGraphic->width();
int h = this->codeGraphic->height();
QGraphicsScene *scene = new QGraphicsScene(this);
const QBrush bg = QBrush(QColor(74, 74, 74));
scene->setBackgroundBrush(bg);
graphicsScene->setBackgroundBrush(bg);
this->codeGraphic->setRenderHints(0);
this->codeGraphic->setScene(scene);
this->codeGraphic->setScene(graphicsScene);
this->codeGraphic->setRenderHints(QPainter::Antialiasing);
this->codeGraphic->setToolTip("gap");
@ -131,6 +138,10 @@ void GraphicsBar::fillData()
}
int graph_block = local_w / num;
if(graph_block == 0)
{
continue;
}
int counter = 0;
for (auto j : mainMap["blocks"].toList())
@ -156,7 +167,7 @@ void GraphicsBar::fillData()
rect->setPen(Qt::NoPen);
rect->setBrush(QBrush(QColor(252, 249, 190)));
rect->setToolTip("Data");
scene->addItem(rect);
graphicsScene->addItem(rect);
}
else
{
@ -180,7 +191,7 @@ void GraphicsBar::fillData()
rect->setBrush(QBrush(QColor(190, 190, 190)));
}
rect->setToolTip(generateTooltip(section.name, map));
scene->addItem(rect);
graphicsScene->addItem(rect);
}
// Check whether this block contains the current address.
@ -202,7 +213,7 @@ void GraphicsBar::fillData()
QGraphicsRectItem *rect = new QGraphicsRectItem(cursor_x, 0, 2, h);
rect->setPen(Qt::NoPen);
rect->setBrush(QBrush(QColor(255, 0, 0)));
scene->addItem(rect);
graphicsScene->addItem(rect);
}
}

4
src/widgets/CodeGraphic.h
View File

@ -2,6 +2,7 @@
#define GRAPHICSBAR_H
#include <QToolBar>
#include <QGraphicsScene>
#include "cutter.h"
@ -33,6 +34,7 @@ private slots:
private:
QGraphicsView *codeGraphic;
QGraphicsScene *graphicsScene;
MainWindow *main;
RVA totalSectionsSize;
QList<SectionDescription> sections;
@ -40,6 +42,8 @@ private:
QList<struct xToAddress> xToAddress;
QString generateTooltip(QString section_name, QMap<QString, QVariant> map);
// Used to check whether the width changed. If yes we need to re-initialize the scene (slow)
int previousWidth;
void mousePressEvent(QMouseEvent *event) override;
};