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Hi. I add line with 5000 pixel into QGraphicsView then I scroll horizontallly but I can not come end of that line . I write my own scrollBar. Code is below
What is my problem . Do you know?
Qt Code:
Switch view
#include "mainwindow.h"
#include <QtGui>
MainWindow
::MainWindow(QWidget *parent
){
currentPosition = 0;
populateScene();
scene
->addLine
(QLineF(-100,
0,
5000,
0),
QPen(Qt
::green));
/*view1->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);*/
layout->addWidget(view1);
vertical->addWidget(subWidget);
vertical->addWidget(scrollbar);
connect(scrollbar, SIGNAL(sliderMoved(int)), this, SLOT(moveViews(int)));
}
void MainWindow::populateScene()
{
}
void MainWindow:: moveViews(int value)
{
int moveBy = value - currentPosition;
view1->scroll(-moveBy, 0);
view2->scroll(-moveBy, 0);
currentPosition = value;
}
#include "mainwindow.h"
#include <QtGui>
MainWindow::MainWindow(QWidget *parent)
: QWidget(parent)
currentPosition = 0;
populateScene();
scene->addLine(QLineF(-100,0,5000,0),QPen(Qt::green));
view1 = new QGraphicsView(scene);
scrollbar = new QScrollBar(Qt::Horizontal, this);
QVBoxLayout *vertical = new QVBoxLayout(this);
QWidget *subWidget = new QWidget(this);
QHBoxLayout *layout = new QHBoxLayout(subWidget);
layout->addWidget(view1);
vertical->addWidget(subWidget);
vertical->addWidget(scrollbar);
connect(scrollbar, SIGNAL(sliderMoved(int)), this, SLOT(moveViews(int)));
void MainWindow::populateScene()
scene = new QGraphicsScene;
void MainWindow:: moveViews(int value)
int moveBy = value - currentPosition;
view1->scroll(-moveBy, 0);
view2->scroll(-moveBy, 0);
currentPosition = value;
To copy to clipboard, switch view to plain text mode
I want to use two GraphicsView , when I set scrollbarvalue , I want to move both of them.
How can I do it.
Connect one scrollbar's valueChanged(or similar) signal to another scroll bar's setValue(or similar) slot.
