Try to fix bugs

尝试修复多屏幕下截图全屏预览的偏移问题。

src/image_show.cpp

@@ -1,16 +1,20 @@
 #include "image_show.h"
+
+#include <QScreen>  // Qt5 不再建议使用 QDesktopWidget
 #include <QHBoxLayout>
-#include <QDebug>
 #include <QPainter>
+
 #include <DDialog>
 #include <DBlurEffectWidget>
 #include <DWidgetUtil>
 #include <DApplication>
-#include <QDesktopWidget>
+
 DWIDGET_USE_NAMESPACE
-image_show::image_show(QWidget *parent) : QWidget(parent)
+
+image_show::image_show(QWidget *parent)
+    : QWidget(parent)
 {
-    QHBoxLayout *layout=new QHBoxLayout;
+    QHBoxLayout *layout = new QHBoxLayout;
     layout->addWidget(m_label);
     setLayout(layout);
     m_label->setText("layout");
@@ -19,16 +23,22 @@ image_show::image_show(QWidget *parent) : QWidget(parent)
 void image_show::setImage(QPixmap image)
 {
     QImage screen0;
-    screen0=image.toImage();
-//    QPainter painter(&screen0);
+    screen0 = image.toImage();
+    // QPainter painter(&screen0);
     QImage re_screen1;
-    QImage re_screen0=screen0.scaled(QSize(400,300),Qt::KeepAspectRatio,Qt::SmoothTransformation);
-    desktop_w=DApplication::desktop()->width();
-    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 {
+    QImage re_screen0 = screen0.scaled(QSize(400,300),Qt::KeepAspectRatio,Qt::SmoothTransformation);
+
+    // 获取主屏幕尺寸
+    desktop_w = DApplication::primaryScreen()->geometry().width();
+    desktop_h = DApplication::primaryScreen()->geometry().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
+    {
         m_image=image;
     }
 
@@ -37,10 +47,12 @@ void image_show::setImage(QPixmap image)
 
 void image_show::mousePressEvent(QMouseEvent *)
 {
-   m_dialog->setimage(m_image);
-   m_dialog->showFullScreen();
-   m_dialog->setFixedSize(desktop_w,desktop_h);
-   m_dialog->move(0,0);/*
-   moveToCenter(m_dialog);*/
+    m_dialog->setimage(m_image);
+    m_dialog->showFullScreen();
 
+    // 识别主屏幕尺寸并设置 widget 大小
+    m_dialog->setFixedSize(desktop_w, desktop_h);
+
+    m_dialog->move(0,0);
+    // moveToCenter(m_dialog);
 }

src/main.cpp

@@ -41,7 +41,7 @@ int main(int argc, char *argv[])
     a.setOrganizationName("spark-union");
     a.setOrganizationDomain("https://www.deepinos.org/");
     a.setApplicationName("Spark Store");    //不需要翻译，否则 ~/.local/share/ 下文件夹名称也被翻译为中文
-    a.setApplicationVersion(DApplication::buildVersion("3.0~alpha0"));
+    a.setApplicationVersion(DApplication::buildVersion("3.0~alpha1"));
     a.setApplicationAcknowledgementPage("https://gitee.com/deepin-community-store/spark-store");
     a.setApplicationDescription(
                 QObject::tr(