添加商店内弹出窗消息

使用SpkUiMessage::SendStoreNotification激活，必须在SpkStore构造函数加载完全局SpkPopup类之后才可
使用。

inc/spkmainwindow.h

@@ -62,7 +62,7 @@ namespace SpkUi
             mLastCheckedBtn = nullptr;
           }
           else
-            // QUESTIONABLE:
+            // NOTE:
             // Apparently for checkable buttons, Qt flip their checked property AFTER
             // this slot function. So to prevent a checkable button being unchecked,
             // we set it to unchecked here. Qt will flip it back to checked later.

inc/spkpageqsstest.h

@@ -7,6 +7,7 @@
 #include <QCheckBox>
 #include <QGroupBox>
 #include <QTextEdit>
+#include <QLineEdit>
 #include <QVBoxLayout>
 #include <QHBoxLayout>
 #include <QSlider>
@@ -38,8 +39,12 @@ namespace SpkUi
       QSlider *SlideV;
       SpkLoading *Loading;
 
+      QLineEdit *PopupText;
+      QPushButton *ShowPopup;
+
     public slots:
       void SetStylesheet();
       void FetchStylesheet();
+      void ShowPopupSlot();
   };
 }

inc/spkpopup.h

@@ -0,0 +1,30 @@
+
+#pragma once
+
+#include <QLabel>
+#include <QWidget>
+#include <QHBoxLayout>
+#include <QPropertyAnimation>
+#include <QSequentialAnimationGroup>
+
+class SpkMainWindow;
+
+namespace SpkUi
+{
+  class SpkPopup : public QWidget
+  {
+      Q_OBJECT
+    public:
+      SpkPopup(QWidget *parent, int aMillis = 3000);
+
+    public slots:
+      void Show(QString aText);
+
+    private:
+      QPoint MoveOffset;
+      QLabel *mText;
+      QHBoxLayout *mBox;
+      QPropertyAnimation *mAnimFadeIn, *mAnimFadeOut;
+      QSequentialAnimationGroup *mAnim;
+  };
+}

inc/spkui_general.h

@@ -16,6 +16,8 @@ namespace SpkUi
   enum SpkUiStyle { Light, Dark };
   enum SpkButtonStyle { Normal = 0, Recommend, Warn };
 
+  class SpkPopup;
+
   constexpr int StackTraceArraySize = 64;
   constexpr const char * const StoreIconName = "spark-store";
 
@@ -40,6 +42,8 @@ namespace SpkUi
   extern QStyle *OldSystemStyle;
   extern QList<QColor> CurrentColorSet;
 
+  extern SpkPopup *Popup;
+
   namespace States
   {
     extern bool IsDDE, IsUsingDtkPlugin;