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mirror of https://github.com/fralx/LimeReport.git synced 2024-12-23 16:22:58 +03:00

Zommer has been moved to own module

Zommer has been moved to own module
This commit is contained in:
Arin Alexander 2016-03-31 00:02:35 +04:00
parent c0e8252be3
commit 5717900216
4 changed files with 92 additions and 74 deletions

View File

@ -0,0 +1,58 @@
#include "lrgraphicsviewzoom.h"
#include <QMouseEvent>
#include <QApplication>
#include <QtMath>
namespace LimeReport{
GraphicsViewZoomer::GraphicsViewZoomer(QGraphicsView* view)
: QObject(view), m_view(view)
{
m_view->viewport()->installEventFilter(this);
m_view->setMouseTracking(true);
m_modifiers = Qt::ControlModifier;
m_zoomFactorBase = 1.0015;
}
void GraphicsViewZoomer::gentleZoom(double factor) {
m_view->scale(factor, factor);
m_view->centerOn(m_targetScenePos);
QPointF delta_viewport_pos = m_targetViewportPos - QPointF(m_view->viewport()->width() / 2.0,
m_view->viewport()->height() / 2.0);
QPointF viewport_center = m_view->mapFromScene(m_targetScenePos) - delta_viewport_pos;
m_view->centerOn(m_view->mapToScene(viewport_center.toPoint()));
emit zoomed();
}
void GraphicsViewZoomer::setModifiers(Qt::KeyboardModifiers modifiers) {
m_modifiers = modifiers;
}
void GraphicsViewZoomer::setZoomFactorBase(double value) {
m_zoomFactorBase = value;
}
bool GraphicsViewZoomer::eventFilter(QObject *object, QEvent *event) {
if (event->type() == QEvent::MouseMove) {
QMouseEvent* mouse_event = static_cast<QMouseEvent*>(event);
QPointF delta = m_targetViewportPos - mouse_event->pos();
if (qAbs(delta.x()) > 5 || qAbs(delta.y()) > 5) {
m_targetViewportPos = mouse_event->pos();
m_targetScenePos = m_view->mapToScene(mouse_event->pos());
}
} else if (event->type() == QEvent::Wheel) {
QWheelEvent* wheel_event = static_cast<QWheelEvent*>(event);
if (QApplication::keyboardModifiers() == m_modifiers) {
if (wheel_event->orientation() == Qt::Vertical) {
double angle = wheel_event->delta();
double factor = qPow(m_zoomFactorBase, angle);
gentleZoom(factor);
return true;
}
}
}
Q_UNUSED(object)
return false;
}
} //namespace LimeReport

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@ -0,0 +1,28 @@
#ifndef GRAPHICSVIEWZOOM_H
#define GRAPHICSVIEWZOOM_H
#include <QObject>
#include <QGraphicsView>
namespace LimeReport {
class GraphicsViewZoomer : public QObject {
Q_OBJECT
public:
GraphicsViewZoomer(QGraphicsView* view);
void gentleZoom(double factor);
void setModifiers(Qt::KeyboardModifiers modifiers);
void setZoomFactorBase(double value);
private:
QGraphicsView* m_view;
Qt::KeyboardModifiers m_modifiers;
double m_zoomFactorBase;
QPointF m_targetScenePos, m_targetViewportPos;
bool eventFilter(QObject* object, QEvent* event);
signals:
void zoomed();
};
} // namespace LimeReport
#endif // GRAPHICSVIEWZOOM_H

View File

@ -42,62 +42,9 @@
#include <QFileDialog>
#include <QApplication>
namespace LimeReport {
//GraphicsViewZoom
GraphicsViewZoom::GraphicsViewZoom(QGraphicsView* view)
: QObject(view), m_view(view)
{
m_view->viewport()->installEventFilter(this);
m_view->setMouseTracking(true);
m_modifiers = Qt::ControlModifier;
m_zoomFactorBase = 1.0015;
}
void GraphicsViewZoom::gentleZoom(double factor) {
m_view->scale(factor, factor);
m_view->centerOn(m_targetScenePos);
QPointF delta_viewport_pos = m_targetViewportPos - QPointF(m_view->viewport()->width() / 2.0,
m_view->viewport()->height() / 2.0);
QPointF viewport_center = m_view->mapFromScene(m_targetScenePos) - delta_viewport_pos;
m_view->centerOn(m_view->mapToScene(viewport_center.toPoint()));
emit zoomed();
}
void GraphicsViewZoom::setModifiers(Qt::KeyboardModifiers modifiers) {
m_modifiers = modifiers;
}
void GraphicsViewZoom::setZoomFactorBase(double value) {
m_zoomFactorBase = value;
}
bool GraphicsViewZoom::eventFilter(QObject *object, QEvent *event) {
if (event->type() == QEvent::MouseMove) {
QMouseEvent* mouse_event = static_cast<QMouseEvent*>(event);
QPointF delta = m_targetViewportPos - mouse_event->pos();
if (qAbs(delta.x()) > 5 || qAbs(delta.y()) > 5) {
m_targetViewportPos = mouse_event->pos();
m_targetScenePos = m_view->mapToScene(mouse_event->pos());
}
} else if (event->type() == QEvent::Wheel) {
QWheelEvent* wheel_event = static_cast<QWheelEvent*>(event);
if (QApplication::keyboardModifiers() == m_modifiers) {
if (wheel_event->orientation() == Qt::Vertical) {
double angle = wheel_event->delta();
double factor = qPow(m_zoomFactorBase, angle);
gentleZoom(factor);
return true;
}
}
}
Q_UNUSED(object)
return false;
}
// ReportDesignIntf
//ReportDesignWidget* ReportDesignWidget::m_instance=0;
ReportDesignWidget::ReportDesignWidget(ReportEnginePrivate *report, QMainWindow *mainWindow, QWidget *parent) :
QWidget(parent), m_mainWindow(mainWindow), m_verticalGridStep(10), m_horizontalGridStep(10), m_useGrid(false)
@ -128,7 +75,7 @@ ReportDesignWidget::ReportDesignWidget(ReportEnginePrivate *report, QMainWindow
m_view->scale(0.5,0.5);
//m_instance=this;
//m_view->viewport()->installEventFilter(this);
m_zoomer = new GraphicsViewZoom(m_view);
m_zoomer = new GraphicsViewZoomer(m_view);
#ifdef Q_OS_WIN
m_defaultFont = QFont("Arial",10);
#endif
@ -193,7 +140,9 @@ void ReportDesignWidget::loadState(QSettings* settings)
}
ReportDesignWidget::~ReportDesignWidget()
{ /*m_instance=0;*/}
{
delete m_zoomer;
}
void ReportDesignWidget::setActivePage(PageDesignIntf *page)
{

View File

@ -39,6 +39,7 @@
#include "lrdatasourcemanager.h"
#include "lrcollection.h"
#include "lrreportengine_p.h"
#include "lrgraphicsviewzoom.h"
namespace LimeReport {
@ -47,24 +48,6 @@ class ReportEnginePrivate;
class DataBrowser;
class ReportDesignWindow;
class GraphicsViewZoom : public QObject {
Q_OBJECT
public:
GraphicsViewZoom(QGraphicsView* view);
void gentleZoom(double factor);
void setModifiers(Qt::KeyboardModifiers modifiers);
void setZoomFactorBase(double value);
private:
QGraphicsView* m_view;
Qt::KeyboardModifiers m_modifiers;
double m_zoomFactorBase;
QPointF m_targetScenePos, m_targetViewportPos;
bool eventFilter(QObject* object, QEvent* event);
signals:
void zoomed();
};
class ReportDesignWidget : public QWidget
{
Q_OBJECT
@ -158,7 +141,7 @@ private:
ReportEnginePrivate* m_report;
QGraphicsView *m_view;
QMainWindow *m_mainWindow;
GraphicsViewZoom* m_zoomer;
GraphicsViewZoomer* m_zoomer;
QFont m_defaultFont;
int m_verticalGridStep;
int m_horizontalGridStep;