Qt 無邊框視窗自定義標題欄

實現了自定義標題欄的最小化，最大化（自適應工作列），關閉，拉伸，拖曳。

因為不想引入其他資源，所以按鈕，背景都是系統提供的。

效果圖：

直接上**。

用法：

#include "widget.h"

int main(int argc, char *argv)

#pragma once

#include class qtoolbutton;
class customframe : public qframe
;

#include "customframe.h"

#include static const int title_height = 30;
static const int frame_border = 2;
customframe::customframe(qwidget *contentwidget, const qstring &title)
: contentwidget_(contentwidget)
void customframe::slotshowsmall()
void customframe::slotshowmaxrestore()
else 
ismax_ = !ismax_;
}void customframe::mousepressevent(qmouseevent *e)
else if (e->type() == qevent::mousebuttondblclick && e->pos().y() <= title_height) }}
void customframe::mousemoveevent(qmouseevent *e)
this->move(e->globalpos() - clickpos_);
}void customframe::mousereleaseevent(qmouseevent *)
bool customframe::nativeevent(const qbytearray & eventtype, void * message, long * result)
else 
if(xpos > 0 && xpos < hit_border) 
if(xpos > (this->width() - hit_border) && xpos < (this->width() - 0)) 
if(ypos > 0 && ypos < hit_border) 
if(ypos > (this->height() - hit_border) && ypos < (this->height() - 0)) 
if(xpos > 0 && xpos < hit_border && ypos > 0 && ypos < hit_border) 
if(xpos > (this->width() - hit_border) && xpos < (this->width() - 0) && ypos > 0 && ypos < hit_border) 
if(xpos > 0 && xpos < hit_border && ypos > (this->height() - hit_border) && ypos < (this->height() - 0)) 
if(xpos > (this->width() - hit_border) && xpos < (this->width() - 0) && ypos > (this->height() - hit_border) && ypos < (this->height() - 0)) 
return true;
}return false;
}void customframe::paintevent(qpaintevent *e)
qpainter painter(this);
qpainterpath painterpath;
painterpath.setfillrule(qt::windingfill);
painterpath.addrect(border, border, this->width()-2*border, this->height()-2*border);
painter.setrenderhint(qpainter::antialiasing, true);
painter.fillpath(painterpath, qbrush(qt::white));
qcolor color(200, 200, 200);
for (int i=0; iwidth()-(border-i)*2, this->height()-(border-i)*2);
} painter.setpen(qt::nopen);
painter.setbrush(qt::white);
// 這裡可以在資源中指定一張標題背景
border, this->width()-2*border, this->height()-2*border), qpixmap(default_skin));
painter.drawrect(qrect(border, title_height, this->width()-2*border, this->height()-title_height-border));
qframe::paintevent(e);
}

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