1 files changed, 30 insertions, 51 deletions

diff --git a/noncore/graphics/drawpad/drawpad.cpp b/noncore/graphics/drawpad/drawpad.cpp
index 3c593b6..5cc2197 100644
--- a/noncore/graphics/drawpad/drawpad.cpp
+++ b/noncore/graphics/drawpad/drawpad.cpp
@@ -32,24 +32,26 @@
 #include <qspinbox.h>
 #include <qtoolbutton.h>
 #include <qtooltip.h>
 
 DrawPad::DrawPad(QWidget* parent, const char* name, WFlags f)
     : QMainWindow(parent, name, f)
 {
     setCaption(tr("DrawPad"));
 
     // init members
 
     m_pDrawPadCanvas = new DrawPadCanvas(this, this);
+    connect(m_pDrawPadCanvas, SIGNAL(pagesChanged()), this, SLOT(updateNavigationToolButtons()));
+    connect(m_pDrawPadCanvas, SIGNAL(pageBackupsChanged()), this, SLOT(updateUndoRedoToolButtons()));
 
     QFile file(Global::applicationFileName("drawpad", "drawpad.xml"));
 
     if (file.open(IO_ReadOnly)) {
         m_pDrawPadCanvas->load(&file);
         file.close();
     }
 
     setCentralWidget(m_pDrawPadCanvas);
 
     m_colors.resize(8);
     m_colors.at(0) = Qt::black;
@@ -62,74 +64,84 @@ DrawPad::DrawPad(QWidget* parent, const char* name, WFlags f)
     m_colors.at(7) = Qt::yellow;
 
     // init menu
 
     setToolBarsMovable(false);
 
     QPEToolBar* menuToolBar = new QPEToolBar(this);
     QPEMenuBar* menuBar = new QPEMenuBar(menuToolBar);
 
     QPopupMenu *toolsPopupMenu = new QPopupMenu(menuBar);
 
     QAction* clearAllAction = new QAction(tr("Clear All"), QString::null, 0, this);
-    connect(clearAllAction, SIGNAL(activated()), this, SLOT(clearAll()));
+    connect(clearAllAction, SIGNAL(activated()), m_pDrawPadCanvas, SLOT(clearAll()));
     clearAllAction->addTo(toolsPopupMenu);
 
     toolsPopupMenu->insertSeparator();
 
     QAction* setOptionsAction = new QAction(tr("Options"), tr("Options..."), 0, this);
     setOptionsAction->addTo(toolsPopupMenu);
 
     menuBar->insertItem(tr("Tools"), toolsPopupMenu);
 
     // init page toolbar
 
     QPEToolBar* pageToolBar = new QPEToolBar(this);
 
     QAction* newPageAction = new QAction(tr("New Page"), Resource::loadIconSet("new"), QString::null, 0, this);
-    connect(newPageAction, SIGNAL(activated()), this, SLOT(newPage()));
+    connect(newPageAction, SIGNAL(activated()), m_pDrawPadCanvas, SLOT(newPage()));
     newPageAction->addTo(pageToolBar);
 
     QAction* clearPageAction = new QAction(tr("Clear Page"), Resource::loadIconSet("drawpad/clear"), QString::null, 0, this);
     connect(clearPageAction, SIGNAL(activated()), m_pDrawPadCanvas, SLOT(clearPage()));
     clearPageAction->addTo(pageToolBar);
 
     QAction* deletePageAction = new QAction(tr("Delete Page"), Resource::loadIconSet("trash"), QString::null, 0, this);
-    connect(deletePageAction, SIGNAL(activated()), this, SLOT(deletePage()));
+    connect(deletePageAction, SIGNAL(activated()), m_pDrawPadCanvas, SLOT(deletePage()));
     deletePageAction->addTo(pageToolBar);
 
     QPEToolBar* emptyToolBar = new QPEToolBar(this);
     emptyToolBar->setHorizontalStretchable(true);
 
     // init navigation toolbar
 
     QPEToolBar* navigationToolBar = new QPEToolBar(this);
 
+    m_pUndoAction = new QAction(tr("Undo"), Resource::loadIconSet("drawpad/undo"), QString::null, 0, this);
+    connect(m_pUndoAction, SIGNAL(activated()), m_pDrawPadCanvas, SLOT(undo()));
+    m_pUndoAction->addTo(navigationToolBar);
+
+    m_pRedoAction = new QAction(tr("Redo"), Resource::loadIconSet("drawpad/redo"), QString::null, 0, this);
+    connect(m_pRedoAction, SIGNAL(activated()), m_pDrawPadCanvas, SLOT(redo()));
+    m_pRedoAction->addTo(navigationToolBar);
+
+    updateUndoRedoToolButtons();
+
     m_pFirstPageAction = new QAction(tr("First Page"), Resource::loadIconSet("fastback"), QString::null, 0, this);
-    connect(m_pFirstPageAction, SIGNAL(activated()), this, SLOT(goFirstPage()));
+    connect(m_pFirstPageAction, SIGNAL(activated()), m_pDrawPadCanvas, SLOT(goFirstPage()));
     m_pFirstPageAction->addTo(navigationToolBar);
 
     m_pPreviousPageAction = new QAction(tr("Previous Page"), Resource::loadIconSet("back"), QString::null, 0, this);
-    connect(m_pPreviousPageAction, SIGNAL(activated()), this, SLOT(goPreviousPage()));
+    connect(m_pPreviousPageAction, SIGNAL(activated()), m_pDrawPadCanvas, SLOT(goPreviousPage()));
     m_pPreviousPageAction->addTo(navigationToolBar);
 
     m_pNextPageAction = new QAction(tr("Next Page"), Resource::loadIconSet("forward"), QString::null, 0, this);
-    connect(m_pNextPageAction, SIGNAL(activated()), this, SLOT(goNextPage()));
+    connect(m_pNextPageAction, SIGNAL(activated()), m_pDrawPadCanvas, SLOT(goNextPage()));
     m_pNextPageAction->addTo(navigationToolBar);
 
     m_pLastPageAction = new QAction(tr("Last Page"), Resource::loadIconSet("fastforward"), QString::null, 0, this);
-    connect(m_pLastPageAction, SIGNAL(activated()), this, SLOT(goLastPage()));
+    connect(m_pLastPageAction, SIGNAL(activated()), m_pDrawPadCanvas, SLOT(goLastPage()));
     m_pLastPageAction->addTo(navigationToolBar);
 
-    updateNavigationToolBar();
+    updateNavigationToolButtons();
 
     // init draw mode toolbar
 
     QPEToolBar* drawModeToolBar = new QPEToolBar(this);
 
     m_pPointDrawModeAction = new QAction(tr("Draw Point"), Resource::loadIconSet("drawpad/point.png"), QString::null, 0, this);
     m_pPointDrawModeAction->setToggleAction(true);
     connect(m_pPointDrawModeAction, SIGNAL(activated()), this, SLOT(setPointDrawMode()));
     m_pPointDrawModeAction->addTo(drawModeToolBar);
 
     m_pLineDrawModeAction = new QAction(tr("Draw Line"), Resource::loadIconSet("drawpad/line.png"), QString::null, 0, this);
     m_pLineDrawModeAction->setToggleAction(true);
@@ -152,24 +164,27 @@ DrawPad::DrawPad(QWidget* parent, const char* name, WFlags f)
     m_pFillDrawModeAction->addTo(drawModeToolBar);
 
     m_pEraseDrawModeAction = new QAction(tr("Erase Point"), Resource::loadIconSet("drawpad/erase.png"), QString::null, 0, this);
     m_pEraseDrawModeAction->setToggleAction(true);
     connect(m_pEraseDrawModeAction, SIGNAL(activated()), this, SLOT(setEraseDrawMode()));
     m_pEraseDrawModeAction->addTo(drawModeToolBar);
 
     m_pDrawMode = 0;
     setPointDrawMode();
 
     emptyToolBar = new QPEToolBar(this);
     emptyToolBar->setHorizontalStretchable(true);
+    emptyToolBar->addSeparator();
+
+    // init draw parameters toolbar
 
     QPEToolBar* drawParametersToolBar = new QPEToolBar(this);
 
     QSpinBox* penWidthSpinBox = new QSpinBox(1, 9, 1, drawParametersToolBar);
     connect(penWidthSpinBox, SIGNAL(valueChanged(int)), this, SLOT(changePenWidth(int)));
 
     penWidthSpinBox->setValue(1);
 
     m_pPenColorToolButton = new QToolButton(drawParametersToolBar);
     m_pPenColorToolButton->setPixmap(Resource::loadPixmap("drawpad/pencolor.png"));
 
     QPopupMenu* penColorPopupMenu = new QPopupMenu(m_pPenColorToolButton);
@@ -209,66 +224,24 @@ DrawPad::DrawPad(QWidget* parent, const char* name, WFlags f)
 }
 
 DrawPad::~DrawPad()
 {
     QFile file(Global::applicationFileName("drawpad", "drawpad.xml"));
 
     if (file.open(IO_WriteOnly)) {
         m_pDrawPadCanvas->save(&file);
         file.close();
     }
 }
 
-void DrawPad::clearAll()
-{
-    m_pDrawPadCanvas->clearAll();
-    updateNavigationToolBar();
-}
-
-void DrawPad::newPage()
-{
-    m_pDrawPadCanvas->newPage();
-    updateNavigationToolBar();
-}
-
-void DrawPad::deletePage()
-{
-    m_pDrawPadCanvas->deletePage();
-    updateNavigationToolBar();
-}
-
-void DrawPad::goFirstPage()
-{
-    m_pDrawPadCanvas->goFirstPage();
-    updateNavigationToolBar();
-}
-
-void DrawPad::goPreviousPage()
-{
-    m_pDrawPadCanvas->goPreviousPage();
-    updateNavigationToolBar();
-}
-
-void DrawPad::goNextPage()
-{
-    m_pDrawPadCanvas->goNextPage();
-    updateNavigationToolBar();
-}
-
-void DrawPad::goLastPage()
-{
-    m_pDrawPadCanvas->goLastPage();
-    updateNavigationToolBar();
-}
-
 void DrawPad::setPointDrawMode()
 {
     if (m_pDrawMode) {
         delete m_pDrawMode;
     }
 
     m_pDrawMode = new PointDrawMode(this, m_pDrawPadCanvas);
 
     m_pPointDrawModeAction->setOn(true);
     m_pLineDrawModeAction->setOn(false);
     m_pRectangleDrawModeAction->setOn(false);
     m_pEllipseDrawModeAction->setOn(false);
@@ -372,19 +345,25 @@ void DrawPad::changePenColor(int index)
 }
 
 void DrawPad::changeBrushColor(int index)
 {
     m_brush = QBrush(m_colors.at(index));
 
     QPainter painter;
     painter.begin(m_pBrushColorToolButton->pixmap());
     painter.fillRect(QRect(0, 12, 14, 2), m_brush.color());
     painter.end();
 }
 
-void DrawPad::updateNavigationToolBar()
+void DrawPad::updateUndoRedoToolButtons()
+{
+    m_pUndoAction->setEnabled(m_pDrawPadCanvas->undoEnabled());
+    m_pRedoAction->setEnabled(m_pDrawPadCanvas->redoEnabled());
+}
+
+void DrawPad::updateNavigationToolButtons()
 {
     m_pFirstPageAction->setEnabled(m_pDrawPadCanvas->goPreviousPageEnabled());
     m_pPreviousPageAction->setEnabled(m_pDrawPadCanvas->goPreviousPageEnabled());
     m_pNextPageAction->setEnabled(m_pDrawPadCanvas->goNextPageEnabled());
     m_pLastPageAction->setEnabled(m_pDrawPadCanvas->goNextPageEnabled());
 }