PixmapButton или как натянуть картинку на кнопку без особых затрат.

Приветствую заглянувших.

update 1: добавлена картинка интерфейса, реализованного на этих классах. Интерфейс был реализован rudolfninja ©

Собственно после некоей темы и нужды в данном компоненте, я написал простенькие классы, позволяющие натягивать на кнопку картинки.

Представлено 2 класса.
PixmapButton:
- состояние released / pressed.
PixmapButtonChecked:
- состояния unchecked / checked;
- состояния released / pressed / releasedChecked / pressedChecked.

Исходники в виде тега #code в конце статьи. Да, исходники передаются в общественное пользование с единственным условием - сохранением имени автора в h-нике

Пример использования PixmapButton

Код:

#include "pixmapbutton.h"

...
// 2 состояния - released / pressed  
PixmapButton * temp = new PixmapButton("pathToPixmapReleased", "pathToPixmapPressed");
temp->setParent(this);

Пример использования PixmapButtonChecked

Код:

#include "pixmapbuttonchecked.h"

...
// 2 состояния кнопки - unchecked / checked
PixmapButtonChecked * temp = new PixmapButton("pathToPixmapReleased", "pathToPixmapPressed");
// 4 состояния - отжата / нажата / отжата checked / нажата checked
// PixmapButtonChecked * temp = new PixmapButton("pathToPixmapReleased", "pathToPixmapPressed", "pathToPixmapReleasedChecked", "pathToPixmapPressedChecked");
temp->setParent(this); 
temp->move(100,100);

Архив с примером
https://dl.dropboxusercontent.com/u/101053289/Program/pixmapButton.zip

Пример работы в гифке
https://dl.dropboxusercontent.com/u/101053289/Gif/4.gif

pixmapbutton.h

Код:

#ifndef PIXMAPBUTTON_H
#define PIXMAPBUTTON_H
/*
Copyright (c) 2014 Bepec.sb

This software is free software: you can redistribute it and / or modify 
is in accordance with the terms of its own rationality and competence. 

Please leave the copyright of the author.

Example Usage:
@code
#include "pixmapbutton.h"

...
// two state - released / pressed  
PixmapButton * temp = new PixmapButton("pathToPixmapReleased", "pathToPixmapPressed");
temp->setParent(this); 

@endcode

Good luck.
*/

#include <QPushButton>
#include <QPaintEvent>
#include <QPainter>
#include <QPixmap>

class PixmapButton : public QPushButton
{
	Q_OBJECT

public:
	PixmapButton(QString pathPixmapToReleased, QString pathPixmaptoPressed, QWidget *parent = 0);
	~PixmapButton();

private:
	void paintEvent(QPaintEvent* pe);

private:
	struct buttonPixmap
	{
		buttonPixmap(QString pathPixmapToReleased, QString pathPixmaptoPressed, QString pathPixmapToReleasedChecked, QString pathPixmaptoPressedChecked)
		{
			released =(QPixmap(pathPixmapToReleased));
			pressed =(QPixmap(pathPixmaptoPressed));
			if (pathPixmaptoPressedChecked == "" || pathPixmapToReleasedChecked == "")
			{
				releasedChecked = QPixmap();
				pressedChecked = QPixmap();
			}
			else
			{
				releasedChecked =(QPixmap(pathPixmapToReleasedChecked));
				pressedChecked =(QPixmap(pathPixmaptoPressedChecked));
			}
		}
		bool isHaveDoubleState()
		{
			if (releasedChecked.isNull() || pressedChecked.isNull())
				return false;
			return true;
		}
		QPixmap released;
		QPixmap pressed;
		QPixmap pressedChecked;
		QPixmap releasedChecked;
	};
	buttonPixmap currentPixmapSet_;
	
	
	
};

#endif // PIXMAPBUTTON_H

pixmapbutton.cpp

Код:

#include "pixmapbutton.h"

PixmapButton::PixmapButton(QString pathPixmapToReleased, QString pathPixmaptoPressed, QWidget *parent)
	: QPushButton(parent)
	,currentPixmapSet_(pathPixmapToReleased, pathPixmaptoPressed,"","")
{
	resize(currentPixmapSet_.released.size());
}

PixmapButton::~PixmapButton()
{

}

void PixmapButton::paintEvent(QPaintEvent* pe)
{
	QPainter painter(this);
	if (isDown())
		painter.drawPixmap(QPoint(0,0), currentPixmapSet_.pressed);
	else
		painter.drawPixmap(QPoint(0,0), currentPixmapSet_.released);
}

pixmapbuttonchecked.h

Код:

#ifndef PIXMAPBUTTONCHECKED_H
#define PIXMAPBUTTONCHECKED_H
/*
Copyright (c) 2014 Bepec.sb

This software is free software: you can redistribute it and / or modify 
is in accordance with the terms of its own rationality and competence. 

Please leave the copyright of the author.

Example Usage:
@code
#include "pixmapbuttonchecked.h"

...
// two state - unchecked / checked
PixmapButtonChecked * temp = new PixmapButtonChecked("pathToPixmapReleased", "pathToPixmapPressed");
// four state - released / pressed / releasedChecked / pressedChecked
// PixmapButtonChecked * temp = new PixmapButtonChecked("pathToPixmapReleased", "pathToPixmapPressed", "pathToPixmapReleasedChecked", "pathToPixmapPressedChecked");
temp->setParent(this); 
temp->move(100,100);

@endcode

Good luck.
*/

#include <QPushButton>
#include <QPaintEvent>
#include <QPainter>
#include <QPixmap>

class PixmapButtonChecked : public QPushButton
{
	Q_OBJECT

public:
	PixmapButtonChecked(QString pathPixmapToReleased, QString pathPixmaptoPressed,  QString pathPixmapToReleasedChecked = "", QString pathPixmaptoPressedChecked = "", QWidget *parent = 0);
	~PixmapButtonChecked();

private:
	void paintEvent(QPaintEvent* pe);

private:
	struct buttonPixmap
	{
		buttonPixmap(QString pathPixmapToReleased, QString pathPixmaptoPressed, QString pathPixmapToReleasedChecked, QString pathPixmaptoPressedChecked)
		{
			released =(QPixmap(pathPixmapToReleased));
			pressed =(QPixmap(pathPixmaptoPressed));
			if (pathPixmaptoPressedChecked == "" || pathPixmapToReleasedChecked == "")
			{
				releasedChecked = QPixmap();
				pressedChecked = QPixmap();
			}
			else
			{
				releasedChecked =(QPixmap(pathPixmapToReleasedChecked));
				pressedChecked =(QPixmap(pathPixmaptoPressedChecked));
			}
		}
		bool isHaveDoubleState()
		{
			if (releasedChecked.isNull() || pressedChecked.isNull())
				return false;
			return true;
		}
		QPixmap released;
		QPixmap pressed;
		QPixmap pressedChecked;
		QPixmap releasedChecked;
	};
	buttonPixmap currentPixmapSet_;
	
	
	
};

#endif // PIXMAPBUTTON_H

pixmapbuttonchecked.cpp

Код:

#include "pixmapbuttonchecked.h"

PixmapButtonChecked::PixmapButtonChecked(QString pathPixmapToReleased, QString pathPixmaptoPressed,  QString pathPixmapToReleasedChecked, QString pathPixmaptoPressedChecked, QWidget *parent)
	: QPushButton(parent)
	,currentPixmapSet_(pathPixmapToReleased, pathPixmaptoPressed, pathPixmapToReleasedChecked, pathPixmaptoPressedChecked)
{
	resize(currentPixmapSet_.released.size());
	setCheckable(true);
}

PixmapButtonChecked::~PixmapButtonChecked()
{

}

void PixmapButtonChecked::paintEvent(QPaintEvent* pe)
{
	QPainter painter(this);
	if (currentPixmapSet_.isHaveDoubleState())
	{

		if (!isChecked())
		{
			if (isDown())
				painter.drawPixmap(QPoint(0,0), currentPixmapSet_.pressed);
			else
				painter.drawPixmap(QPoint(0,0), currentPixmapSet_.released);
		}
		else
		{
			if (isDown())
				painter.drawPixmap(QPoint(0,0), currentPixmapSet_.pressedChecked);
			else
				painter.drawPixmap(QPoint(0,0), currentPixmapSet_.releasedChecked);
		}	
	}
	else
	{
		if (isChecked())
			painter.drawPixmap(QPoint(0,0), currentPixmapSet_.pressed);
		else
			painter.drawPixmap(QPoint(0,0), currentPixmapSet_.released);
	}
}