From 378db8490c6c80ced939622605be1500fa126a2d Mon Sep 17 00:00:00 2001
From: leseb <leseb>
Date: Sun, 17 Mar 2002 15:31:12 +0000
Subject: Basic undo/redo

---
(limited to 'noncore/graphics/drawpad/drawpadcanvas.h')

diff --git a/noncore/graphics/drawpad/drawpadcanvas.h b/noncore/graphics/drawpad/drawpadcanvas.h
index 2ec9298..eddcb43 100644
--- a/noncore/graphics/drawpad/drawpadcanvas.h
+++ b/noncore/graphics/drawpad/drawpadcanvas.h
@@ -34,6 +34,8 @@ public:
     void load(QIODevice* ioDevice);
     void save(QIODevice* ioDevice);
 
+    bool undoEnabled();
+    bool redoEnabled();
     bool goPreviousPageEnabled();
     bool goNextPageEnabled();
 
@@ -45,11 +47,18 @@ public slots:
     void clearPage();
     void deletePage();
 
+    void undo();
+    void redo();
+
     void goFirstPage();
     void goPreviousPage();
     void goNextPage();
     void goLastPage();
 
+signals:
+    void pagesChanged();
+    void pageBackupsChanged();
+
 protected:
     void mousePressEvent(QMouseEvent* e);
     void mouseReleaseEvent(QMouseEvent* e);
@@ -59,7 +68,8 @@ protected:
 
 private:
     DrawPad* m_pDrawPad;
-    QList<QPixmap> m_buffers;
+    QList<QPixmap> m_pages;
+    QList<QPixmap> m_pageBackups;
 };
 
 #endif // DRAWPADCANVAS_H
--
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