From cefcef3bf696e6ee4967c268933d4743f6dcbf7b Mon Sep 17 00:00:00 2001
From: Fan PengCheng <fanpengcheng@uniontech.com>
Date: Mon, 17 May 2021 13:20:54 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E4=BF=AE=E5=A4=8D=E4=BB=BB=E5=8A=A1?=
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当同一个应用打开的窗口过多的时候，预览图会等比缩小，导致看不到
目前这里限制了最大可以打开的数量，按照屏幕宽度除以最大预览图的一半来计算

Log: 修复应用打开窗口过多时任务栏预览效果空白问题
Bug: https://pms.uniontech.com/zentao/bug-view-68118.html
Change-Id: Idc0b74d122b63579f3da7806625ee3b8312e0109
---
 frame/item/components/previewcontainer.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/frame/item/components/previewcontainer.cpp b/frame/item/components/previewcontainer.cpp
index eba32688e..e633be4e0 100644
--- a/frame/item/components/previewcontainer.cpp
+++ b/frame/item/components/previewcontainer.cpp
@@ -25,6 +25,7 @@
 #include <QScreen>
 #include <QApplication>
 #include <QDragEnterEvent>
+#include <QDesktopWidget>
 
 #define SPACING           0
 #define MARGIN            0
@@ -194,6 +195,8 @@ void PreviewContainer::appendSnapWidget(const WId wid)
     });
 
     m_windowListLayout->addWidget(snap);
+    if (m_snapshots.size() >= (QDesktopWidget().screenGeometry(this).width() / (SNAP_WIDTH / 2)))
+        snap->setVisible(false);
 
     m_snapshots.insert(wid, snap);