Daviddoria: Created page with '==main.cpp== #include #include "form.h" int main(int argc, char *argv[]) { QApplication app(argc, argv); Form form; form.show(); ret…'

2011-11-04T15:17:54Z

Created page with '==main.cpp== <source lang="cpp"> #include <QApplication> #include "form.h" int main(int argc, char *argv[]) { QApplication app(argc, argv); Form form; form.show(); ret…'

New page

==main.cpp==
<source lang="cpp">
#include <QApplication>

#include "form.h"

int main(int argc, char *argv[])
{
QApplication app(argc, argv);
Form form;

form.show();
return app.exec();
}

</source>

==form.h==
<source lang="cpp">
#ifndef FORM_H
#define FORM_H

#include "ui_form.h"

class Form : public QWidget, private Ui::Form
{
Q_OBJECT

public:
Form(QWidget *parent = 0);

};

#endif

</source>

==form.cpp==
<source lang="cpp">
#include <QtGui>
#include <QGraphicsScene>
#include <QGraphicsView>
#include <QPixmap>

#include "form.h"

Form::Form(QWidget *parent)
: QWidget(parent)
{
setupUi(this);

//QPixmap pixmap;
//pixmap.load("test.jpg");

// Manual:
//pixmap = pixmap.scaled(20,20);

// Works
// QPixmap pixmap(20,20);
// QColor black(0,0,0);
// pixmap.fill(black);

//QPixmap pixmap; // Doesn't work (probably because the default size is (0,0) so scaling 0 to anything doesn't make sense)
QPixmap pixmap(1,1); // Works
pixmap = pixmap.scaled(20,20);
QColor black(0,0,0);
pixmap.fill(black);

QGraphicsScene* scene = new QGraphicsScene;
scene->addPixmap(pixmap);

this->graphicsView->setScene(scene);

}

</source>

==form.ui==
<source lang="text">
<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>Form</class>
<widget class="QWidget" name="Form">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>400</width>
<height>300</height>
</rect>
</property>
<property name="windowTitle">
<string>Form</string>
</property>
<widget class="QGraphicsView" name="graphicsView">
<property name="geometry">
<rect>
<x>60</x>
<y>50</y>
<width>256</width>
<height>192</height>
</rect>
</property>
</widget>
</widget>
<resources/>
<connections/>
</ui>

</source>

==CMakeLists.txt==
<source lang="cmake">
cmake_minimum_required(VERSION 2.6)

PROJECT(QPixmap)

FIND_PACKAGE(Qt4 REQUIRED)
INCLUDE(${QT_USE_FILE})

QT4_WRAP_UI(UISrcs form.ui)
QT4_WRAP_CPP(MOCSrcs form.h)

include_directories(${include_directories} ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR})

ADD_EXECUTABLE(QPixmap main.cpp form.h form.cpp ${MOCSrcs} ${UISrcs})
TARGET_LINK_LIBRARIES(QPixmap ${QT_LIBRARIES})

</source>

Qt/Images/Pixmap - Revision history

Daviddoria: Created page with '==main.cpp== #include #include "form.h" int main(int argc, char *argv[]) { QApplication app(argc, argv); Form form; form.show(); ret…'