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修复 截图放大后可能会溢出屏幕

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Maicss
2020-07-29 20:51:18 +08:00
parent 46c1609d58
commit ec1c91f021
3 changed files with 27 additions and 13 deletions
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24
image_show.cpp
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@@ -5,6 +5,8 @@
#include <DDialog>
#include <DBlurEffectWidget>
#include <DWidgetUtil>
#include <DApplication>
#include <QDesktopWidget>
DWIDGET_USE_NAMESPACE
image_show::image_show(QWidget *parent) : QWidget(parent)
{
@@ -19,18 +21,26 @@ void image_show::setImage(QPixmap image)
QImage screen0;
screen0=image.toImage();
QPainter painter(&screen0);
// QPainter painter(&screen0);
QImage re_screen1;
QImage re_screen0=screen0.scaled(QSize(400,300),Qt::KeepAspectRatio,Qt::SmoothTransformation);
//防止图片尺寸过大导致窗口覆盖整个屏幕
if(screen0.width()>1024 || screen0.height()>768){
re_screen1=screen0.scaled(QSize(1024,768),Qt::KeepAspectRatio,Qt::SmoothTransformation);
int desktop_w=DApplication::desktop()->width();
int desktop_h=DApplication::desktop()->height();
if(screen0.width()>(desktop_w-20) || screen0.height()>(desktop_h-20)){
re_screen1=screen0.scaled(QSize(desktop_w-20,desktop_h-20),Qt::KeepAspectRatio,Qt::SmoothTransformation);
m_image=QPixmap::fromImage(re_screen1);
}else {
re_screen1=screen0;
m_image=image;
}
//防止图片尺寸过大导致窗口覆盖整个屏幕
// if(screen0.width()>1024 || screen0.height()>768){
// re_screen1=screen0.scaled(QSize(1024,768),Qt::KeepAspectRatio,Qt::SmoothTransformation);
// }else {
// re_screen1=screen0;
// }
// m_image=QPixmap::fromImage(re_screen1);
m_image=QPixmap::fromImage(re_screen1);
m_label->setPixmap(QPixmap::fromImage(re_screen0));
}