修复movewidget移出容器以外的bug

master
feiyangqingyun 2019-10-01 11:35:25 +08:00
parent 94927e4427
commit c69997e1b6
4 changed files with 27 additions and 2 deletions

View File

@ -1,4 +1,4 @@
#pragma execution_character_set("utf-8")
#pragma execution_character_set("utf-8")
#include "frmmovewidget.h"
#include "ui_frmmovewidget.h"

View File

@ -7,6 +7,7 @@ MoveWidget::MoveWidget(QObject *parent) : QObject(parent)
lastPoint = QPoint(0, 0);
pressed = false;
leftButton = true;
inControl = true;
widget = 0;
}
@ -29,7 +30,23 @@ bool MoveWidget::eventFilter(QObject *watched, QEvent *event)
//计算坐标偏移值,调用move函数移动过去
int offsetX = mouseEvent->pos().x() - lastPoint.x();
int offsetY = mouseEvent->pos().y() - lastPoint.y();
widget->move(widget->x() + offsetX, widget->y() + offsetY);
int x = widget->x() + offsetX;
int y = widget->y() + offsetY;
if (inControl) {
//可以自行调整限定在容器中的范围,这里默认保留20个像素在里面
int offset = 20;
bool xyOut = (x + widget->width() < offset || y + widget->height() < offset);
bool whOut = false;
QWidget *w = (QWidget *)widget->parent();
if (w != 0) {
whOut = (w->width() - x < offset || w->height() - y < offset);
}
if (xyOut || whOut) {
return false;
}
}
widget->move(x, y);
} else if (mouseEvent->type() == QEvent::MouseButtonRelease && pressed) {
pressed = false;
}
@ -50,3 +67,8 @@ void MoveWidget::setLeftButton(bool leftButton)
{
this->leftButton = leftButton;
}
void MoveWidget::setInControl(bool inControl)
{
this->inControl = inControl;
}

Binary file not shown.

Before

Width:  |  Height:  |  Size: 226 KiB

View File

@ -34,11 +34,14 @@ private:
QPoint lastPoint; //最后按下的坐标
bool pressed; //鼠标是否按下
bool leftButton; //限定鼠标左键
bool inControl; //限定在容器内
QWidget *widget; //移动的控件
public Q_SLOTS:
//设置是否限定鼠标左键
void setLeftButton(bool leftButton);
//设置是否限定不能移出容器外面
void setInControl(bool inControl);
//设置要移动的控件
void setWidget(QWidget *widget);
};