QT實現不規則窗體

看到網上有很多不規則窗體的實現,效果很酷.于是使用QT也實現了一個,QT的不規則窗體實現非常簡單,只需要設置一個mask(遮掩)圖片,這個圖片的格式可以使用png或bmp格式,我使用了png格式,默認窗體是矩形的,使用png圖像,將需要隔離在窗體之外的區域的像素設置為白色或透明色,其他顏色的區域對應顯示出來的窗體.關鍵代碼就幾行.

#ifndef IRREGULARFORM_H

#define IRREGULARFORM_H

#include

#include ui_irregularform.h

#include

#include

#include

#include

class IrregularForm : public QWidget

{

Q_OBJECT

public:

IrregularForm(QWidget *parent = 0);

~IrregularForm();

protected:

void mouseMoveEvent(QMouseEvent *event);

void mousePressEvent(QMouseEvent *event);

void mouseReleaseEvent(QMouseEvent *event);

private:

Ui::IrregularFormClass ui;

QPoint mouseMovePos;

};

#endif // IRREGULARFORM_H

#include irregularform.h

IrregularForm::IrregularForm(QWidget *parent)

: QWidget(parent)

{

setWindowFlags(Qt::FramelessWindowHint);

QPixmap mask(:/IrregularForm/Resources/mask.png);//加載掩碼圖像

setMask(QBitmap(mask.mask())); //設置窗體的掩碼圖像,摳除圖像的白色區域實現不規則窗體

QPalette p;//設置調色板

p.setBrush(QPalette::Window, QBrush(mask));//將調色板的畫刷設置為掩碼位圖,在不規則窗體上顯示出掩碼位圖

setPalette(p);

mouseMovePos = QPoint(0, 0);

}

IrregularForm::~IrregularForm()

{

}

void IrregularForm::mouseMoveEvent(QMouseEvent *event)//鼠標按下并移動則移動不規則窗體

{

if(mouseMovePos != QPoint(0, 0))

{

move(geometry().x() + event->globalPos().x() - mouseMovePos.x(), geometry().y() + event->globalPos().y() - mouseMovePos.y());

mouseMovePos = event->globalPos();

}

}

void IrregularForm::mousePressEvent(QMouseEvent *event)

{

mouseMovePos = event->globalPos();

}

void IrregularForm::mouseReleaseEvent(QMouseEvent *event)

{

mouseMovePos = QPoint(0, 0);

}

效果圖