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path: root/noncore
authorleseb <leseb>2002-07-10 21:59:27 (UTC)
committer leseb <leseb>2002-07-10 21:59:27 (UTC)
commitf568737c20bea96fb79d85681a72e142ec05d66f (patch) (side-by-side diff)
tree80d08b351bbdeec5be93885a4c18ba0207ef990a /noncore
parent01b04adb73c8bc49938b71a4bebe6fb6a5477f75 (diff)
downloadopie-f568737c20bea96fb79d85681a72e142ec05d66f.zip
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Undo/redo reimplemented
Diffstat (limited to 'noncore') (more/less context) (ignore whitespace changes)
-rw-r--r--noncore/graphics/drawpad/drawpad.cpp28
-rw-r--r--noncore/graphics/drawpad/drawpad.h6
-rw-r--r--noncore/graphics/drawpad/drawpadcanvas.cpp146
-rw-r--r--noncore/graphics/drawpad/drawpadcanvas.h6
-rw-r--r--noncore/graphics/drawpad/erasetool.cpp8
-rw-r--r--noncore/graphics/drawpad/filltool.cpp46
-rw-r--r--noncore/graphics/drawpad/page.cpp60
-rw-r--r--noncore/graphics/drawpad/page.h20
-rw-r--r--noncore/graphics/drawpad/pageinformationdialog.cpp4
-rw-r--r--noncore/graphics/drawpad/pointtool.cpp8
-rw-r--r--noncore/graphics/drawpad/shapetool.cpp12
-rw-r--r--noncore/graphics/drawpad/texttool.cpp6
-rw-r--r--noncore/graphics/drawpad/thumbnailview.cpp6
13 files changed, 169 insertions, 187 deletions
diff --git a/noncore/graphics/drawpad/drawpad.cpp b/noncore/graphics/drawpad/drawpad.cpp
index 4eb47a5..b0a414e 100644
--- a/noncore/graphics/drawpad/drawpad.cpp
+++ b/noncore/graphics/drawpad/drawpad.cpp
@@ -55,9 +55,7 @@ DrawPad::DrawPad(QWidget* parent, const char* name)
m_pDrawPadCanvas = new DrawPadCanvas(this, this);
- connect(m_pDrawPadCanvas, SIGNAL(pagesChanged()), this, SLOT(updateNavigationToolButtons()));
- connect(m_pDrawPadCanvas, SIGNAL(pagesChanged()), this, SLOT(updateCaption()));
- connect(m_pDrawPadCanvas, SIGNAL(pageBackupsChanged()), this, SLOT(updateUndoRedoToolButtons()));
+ connect(m_pDrawPadCanvas, SIGNAL(pagesChanged()), this, SLOT(updateView()));
setCentralWidget(m_pDrawPadCanvas);
@@ -542,27 +540,21 @@ void DrawPad::changeBrushColor(const QColor& color)
m_pBrushColorToolButton->popup()->hide();
}
-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());
-}
-
-void DrawPad::updateCaption()
+void DrawPad::updateView()
{
uint pagePosition = m_pDrawPadCanvas->pagePosition();
uint pageCount = m_pDrawPadCanvas->pageCount();
setCaption(tr("DrawPad") + " - " + tr("Page") + " "
+ QString::number(pagePosition) + "/" + QString::number(pageCount));
+
+ m_pUndoAction->setEnabled(m_pDrawPadCanvas->currentPage()->undoEnabled());
+ m_pRedoAction->setEnabled(m_pDrawPadCanvas->currentPage()->redoEnabled());
+
+ m_pFirstPageAction->setEnabled(m_pDrawPadCanvas->goPreviousPageEnabled());
+ m_pPreviousPageAction->setEnabled(m_pDrawPadCanvas->goPreviousPageEnabled());
+ m_pNextPageAction->setEnabled(m_pDrawPadCanvas->goNextPageEnabled());
+ m_pLastPageAction->setEnabled(m_pDrawPadCanvas->goNextPageEnabled());
}
void DrawPad::deleteAll()
diff --git a/noncore/graphics/drawpad/drawpad.h b/noncore/graphics/drawpad/drawpad.h
index c57606c..7306228 100644
--- a/noncore/graphics/drawpad/drawpad.h
+++ b/noncore/graphics/drawpad/drawpad.h
@@ -59,10 +59,8 @@ private slots:
void changePenWidth(int value);
void changePenColor(const QColor& color);
void changeBrushColor(const QColor& color);
-
- void updateUndoRedoToolButtons();
- void updateNavigationToolButtons();
- void updateCaption();
+
+ void updateView();
void deleteAll();
void importPage();
diff --git a/noncore/graphics/drawpad/drawpadcanvas.cpp b/noncore/graphics/drawpad/drawpadcanvas.cpp
index 05dd408..025bebb 100644
--- a/noncore/graphics/drawpad/drawpadcanvas.cpp
+++ b/noncore/graphics/drawpad/drawpadcanvas.cpp
@@ -28,8 +28,6 @@
#include <qtextstream.h>
#include <qxml.h>
-const int PAGE_BACKUPS = 99;
-
class DrawPadCanvasXmlHandler: public QXmlDefaultHandler
{
public:
@@ -149,7 +147,7 @@ bool DrawPadCanvasXmlHandler::characters(const QString& ch)
Page* page = new Page(m_title, image.width(), image.height());
page->setLastModified(m_date);
- page->convertFromImage(image);
+ page->pixmap()->convertFromImage(image);
m_pages.append(page);
}
@@ -161,7 +159,6 @@ DrawPadCanvas::DrawPadCanvas(DrawPad* drawPad, QWidget* parent, const char* name
{
m_pDrawPad = drawPad;
m_pages.setAutoDelete(true);
- m_pageBackups.setAutoDelete(true);
viewport()->setBackgroundMode(QWidget::NoBackground);
}
@@ -186,32 +183,24 @@ void DrawPadCanvas::load(QIODevice* ioDevice)
if (m_pages.isEmpty()) {
m_pages.append(new Page("", contentsRect().size()));
- m_pages.current()->fill(Qt::white);
+ m_pages.current()->pixmap()->fill(Qt::white);
}
- m_pageBackups.clear();
- m_pageBackups.append(new Page(*(m_pages.current())));
-
- resizeContents(m_pages.current()->width(), m_pages.current()->height());
+ resizeContents(m_pages.current()->pixmap()->width(), m_pages.current()->pixmap()->height());
viewport()->update();
emit pagesChanged();
- emit pageBackupsChanged();
}
void DrawPadCanvas::initialPage()
{
m_pages.append(new Page("", 236, 232));
- m_pages.current()->fill(Qt::white);
-
- m_pageBackups.clear();
- m_pageBackups.append(new Page(*(m_pages.current())));
+ m_pages.current()->pixmap()->fill(Qt::white);
- resizeContents(m_pages.current()->width(), m_pages.current()->height());
+ resizeContents(m_pages.current()->pixmap()->width(), m_pages.current()->pixmap()->height());
viewport()->update();
emit pagesChanged();
- emit pageBackupsChanged();
}
void DrawPadCanvas::save(QIODevice* ioDevice)
@@ -227,11 +216,11 @@ void DrawPadCanvas::save(QIODevice* ioDevice)
for (bufferIterator.toFirst(); bufferIterator.current() != 0; ++bufferIterator) {
textStream << " <image>" << endl;
textStream << " <title>" << bufferIterator.current()->title() << "</title>" << endl;
-
+
int intDate = QDateTime(QDate(1970, 1, 1)).secsTo(bufferIterator.current()->lastModified());
textStream << " <date>" << intDate << "</date>" << endl;
- QImage image = bufferIterator.current()->convertToImage();
+ QImage image = bufferIterator.current()->pixmap()->convertToImage();
QByteArray byteArray;
QBuffer buffer(byteArray);
QImageIO imageIO(&buffer, "PNG");
@@ -263,17 +252,13 @@ void DrawPadCanvas::importPage(const QString& fileName)
{
Page* importedPage = new Page();
- importedPage->load(fileName);
+ importedPage->pixmap()->load(fileName);
m_pages.insert(m_pages.at() + 1, importedPage);
- m_pageBackups.clear();
- m_pageBackups.append(new Page(*(m_pages.current())));
-
- resizeContents(m_pages.current()->width(), m_pages.current()->height());
+ resizeContents(m_pages.current()->pixmap()->width(), m_pages.current()->pixmap()->height());
viewport()->update();
emit pagesChanged();
- emit pageBackupsChanged();
}
void DrawPadCanvas::exportPage(uint fromPage, uint toPage, const QString& name,const QString& format)
@@ -289,7 +274,7 @@ void DrawPadCanvas::exportPage(uint fromPage, uint toPage, const QString& name,c
QIODevice* ioDevice = fileManager.saveFile(docLnk);
QImageIO imageIO(ioDevice, format);
- QImage image = m_pages.current()->convertToImage();
+ QImage image = m_pages.current()->pixmap()->convertToImage();
imageIO.setImage(image);
imageIO.write();
delete ioDevice;
@@ -305,7 +290,7 @@ void DrawPadCanvas::exportPage(uint fromPage, uint toPage, const QString& name,c
QIODevice* ioDevice = fileManager.saveFile(docLnk);
QImageIO imageIO(ioDevice, format);
- QImage image = m_pages.at(i - 1)->convertToImage();
+ QImage image = m_pages.at(i - 1)->pixmap()->convertToImage();
imageIO.setImage(image);
imageIO.write();
delete ioDevice;
@@ -336,45 +321,28 @@ uint DrawPadCanvas::pageCount()
void DrawPadCanvas::selectPage(Page* page)
{
m_pages.findRef(page);
- m_pageBackups.clear();
- m_pageBackups.append(new Page(*(m_pages.current())));
- resizeContents(m_pages.current()->width(), m_pages.current()->height());
+ resizeContents(m_pages.current()->pixmap()->width(), m_pages.current()->pixmap()->height());
viewport()->update();
emit pagesChanged();
- emit pageBackupsChanged();
}
-void DrawPadCanvas::selectPage(uint pagePosition)
+void DrawPadCanvas::backupPage()
{
- m_pages.at(pagePosition - 1);
- m_pageBackups.clear();
- m_pageBackups.append(new Page(*(m_pages.current())));
-
- resizeContents(m_pages.current()->width(), m_pages.current()->height());
- viewport()->update();
+ m_pages.current()->backup();
emit pagesChanged();
- emit pageBackupsChanged();
}
-void DrawPadCanvas::backupPage()
+void DrawPadCanvas::selectPage(uint pagePosition)
{
- m_pages.current()->setLastModified(QDateTime::currentDateTime());
-
- Page* currentBackup = m_pageBackups.current();
- while (m_pageBackups.last() != currentBackup) {
- m_pageBackups.removeLast();
- }
-
- while (m_pageBackups.count() >= (PAGE_BACKUPS + 1)) {
- m_pageBackups.removeFirst();
- }
+ m_pages.at(pagePosition - 1);
- m_pageBackups.append(new Page(*(m_pages.current())));
+ resizeContents(m_pages.current()->pixmap()->width(), m_pages.current()->pixmap()->height());
+ viewport()->update();
- emit pageBackupsChanged();
+ emit pagesChanged();
}
void DrawPadCanvas::deleteAll()
@@ -382,44 +350,31 @@ void DrawPadCanvas::deleteAll()
m_pages.clear();
m_pages.append(new Page("", contentsRect().size()));
- m_pages.current()->fill(Qt::white);
+ m_pages.current()->pixmap()->fill(Qt::white);
- m_pageBackups.clear();
- m_pageBackups.append(new Page(*(m_pages.current())));
-
- resizeContents(m_pages.current()->width(), m_pages.current()->height());
+ resizeContents(m_pages.current()->pixmap()->width(), m_pages.current()->pixmap()->height());
viewport()->update();
emit pagesChanged();
- emit pageBackupsChanged();
}
void DrawPadCanvas::newPage(QString title, uint width, uint height, const QColor& color)
{
m_pages.insert(m_pages.at() + 1, new Page(title, width, height));
- m_pages.current()->fill(color);
-
- m_pageBackups.clear();
- m_pageBackups.append(new Page(*(m_pages.current())));
+ m_pages.current()->pixmap()->fill(color);
- resizeContents(m_pages.current()->width(), m_pages.current()->height());
+ resizeContents(m_pages.current()->pixmap()->width(), m_pages.current()->pixmap()->height());
viewport()->update();
emit pagesChanged();
- emit pageBackupsChanged();
}
void DrawPadCanvas::clearPage()
{
- m_pages.current()->fill(Qt::white);
+ m_pages.current()->pixmap()->fill(Qt::white);
- m_pageBackups.clear();
- m_pageBackups.append(new Page(*(m_pages.current())));
-
- resizeContents(m_pages.current()->width(), m_pages.current()->height());
+ resizeContents(m_pages.current()->pixmap()->width(), m_pages.current()->pixmap()->height());
viewport()->update();
-
- emit pageBackupsChanged();
}
void DrawPadCanvas::deletePage()
@@ -428,17 +383,13 @@ void DrawPadCanvas::deletePage()
if (m_pages.isEmpty()) {
m_pages.append(new Page("", contentsRect().size()));
- m_pages.current()->fill(Qt::white);
+ m_pages.current()->pixmap()->fill(Qt::white);
}
- m_pageBackups.clear();
- m_pageBackups.append(new Page(*(m_pages.current())));
-
- resizeContents(m_pages.current()->width(), m_pages.current()->height());
+ resizeContents(m_pages.current()->pixmap()->width(), m_pages.current()->pixmap()->height());
viewport()->update();
emit pagesChanged();
- emit pageBackupsChanged();
}
void DrawPadCanvas::movePageUp()
@@ -459,16 +410,6 @@ void DrawPadCanvas::movePageDown()
emit pagesChanged();
}
-bool DrawPadCanvas::undoEnabled()
-{
- return (m_pageBackups.current() != m_pageBackups.getFirst());
-}
-
-bool DrawPadCanvas::redoEnabled()
-{
- return (m_pageBackups.current() != m_pageBackups.getLast());
-}
-
bool DrawPadCanvas::goPreviousPageEnabled()
{
return (m_pages.current() != m_pages.getFirst());
@@ -481,72 +422,59 @@ bool DrawPadCanvas::goNextPageEnabled()
void DrawPadCanvas::undo()
{
- *(m_pages.current()) = *(m_pageBackups.prev());
+ m_pages.current()->undo();
viewport()->update();
- emit pageBackupsChanged();
+ emit pagesChanged();
}
void DrawPadCanvas::redo()
{
- *(m_pages.current()) = *(m_pageBackups.next());
+ m_pages.current()->redo();
viewport()->update();
- emit pageBackupsChanged();
+ emit pagesChanged();
}
void DrawPadCanvas::goFirstPage()
{
m_pages.first();
- m_pageBackups.clear();
- m_pageBackups.append(new Page(*(m_pages.current())));
- resizeContents(m_pages.current()->width(), m_pages.current()->height());
+ resizeContents(m_pages.current()->pixmap()->width(), m_pages.current()->pixmap()->height());
viewport()->update();
emit pagesChanged();
- emit pageBackupsChanged();
}
void DrawPadCanvas::goPreviousPage()
{
m_pages.prev();
- m_pageBackups.clear();
- m_pageBackups.append(new Page(*(m_pages.current())));
- resizeContents(m_pages.current()->width(), m_pages.current()->height());
+ resizeContents(m_pages.current()->pixmap()->width(), m_pages.current()->pixmap()->height());
viewport()->update();
emit pagesChanged();
- emit pageBackupsChanged();
}
void DrawPadCanvas::goNextPage()
{
m_pages.next();
- m_pageBackups.clear();
- m_pageBackups.append(new Page(*(m_pages.current())));
-
- resizeContents(m_pages.current()->width(), m_pages.current()->height());
+ resizeContents(m_pages.current()->pixmap()->width(), m_pages.current()->pixmap()->height());
viewport()->update();
emit pagesChanged();
- emit pageBackupsChanged();
}
void DrawPadCanvas::goLastPage()
{
m_pages.last();
- m_pageBackups.clear();
- m_pageBackups.append(new Page(*(m_pages.current())));
- resizeContents(m_pages.current()->width(), m_pages.current()->height());
+ resizeContents(m_pages.current()->pixmap()->width(), m_pages.current()->pixmap()->height());
viewport()->update();
emit pagesChanged();
- emit pageBackupsChanged();
}
void DrawPadCanvas::contentsMousePressEvent(QMouseEvent* e)
@@ -567,10 +495,10 @@ void DrawPadCanvas::contentsMouseMoveEvent(QMouseEvent* e)
void DrawPadCanvas::drawContents(QPainter* p, int cx, int cy, int cw, int ch)
{
QRect clipRect(cx, cy, cw, ch);
- QRect pixmapRect(0, 0, m_pages.current()->width(), m_pages.current()->height());
+ QRect pixmapRect(0, 0, m_pages.current()->pixmap()->width(), m_pages.current()->pixmap()->height());
QRect drawRect = pixmapRect.intersect(clipRect);
- p->drawPixmap(drawRect.topLeft(), *(m_pages.current()), drawRect);
+ p->drawPixmap(drawRect.topLeft(), *(m_pages.current()->pixmap()), drawRect);
if (drawRect.right() < clipRect.right()) {
p->fillRect(drawRect.right() + 1, cy, cw - drawRect.width(), ch, colorGroup().dark());
diff --git a/noncore/graphics/drawpad/drawpadcanvas.h b/noncore/graphics/drawpad/drawpadcanvas.h
index 2283e5e..80a2a7e 100644
--- a/noncore/graphics/drawpad/drawpadcanvas.h
+++ b/noncore/graphics/drawpad/drawpadcanvas.h
@@ -37,8 +37,6 @@ public:
void importPage(const QString& fileName);
void exportPage(uint fromPage, uint toPage, const QString& name, const QString& format);
- bool undoEnabled();
- bool redoEnabled();
bool goPreviousPageEnabled();
bool goNextPageEnabled();
@@ -58,7 +56,7 @@ public slots:
void deletePage();
void movePageUp();
void movePageDown();
-
+
void undo();
void redo();
@@ -69,7 +67,6 @@ public slots:
signals:
void pagesChanged();
- void pageBackupsChanged();
protected:
void contentsMousePressEvent(QMouseEvent* e);
@@ -80,7 +77,6 @@ protected:
private:
DrawPad* m_pDrawPad;
QList<Page> m_pages;
- QList<Page> m_pageBackups;
};
#endif // DRAWPADCANVAS_H
diff --git a/noncore/graphics/drawpad/erasetool.cpp b/noncore/graphics/drawpad/erasetool.cpp
index f77e038..2326da5 100644
--- a/noncore/graphics/drawpad/erasetool.cpp
+++ b/noncore/graphics/drawpad/erasetool.cpp
@@ -32,6 +32,8 @@ EraseTool::~EraseTool()
void EraseTool::mousePressEvent(QMouseEvent* e)
{
+ m_pDrawPadCanvas->backupPage();
+
m_mousePressed = true;
m_polyline[2] = m_polyline[1] = m_polyline[0] = e->pos();
}
@@ -41,8 +43,6 @@ void EraseTool::mouseReleaseEvent(QMouseEvent* e)
Q_UNUSED(e)
m_mousePressed = false;
-
- m_pDrawPadCanvas->backupPage();
}
void EraseTool::mouseMoveEvent(QMouseEvent* e)
@@ -50,7 +50,7 @@ void EraseTool::mouseMoveEvent(QMouseEvent* e)
if (m_mousePressed) {
QPainter painter;
QPen pen(Qt::white, m_pDrawPad->pen().width());
- painter.begin(m_pDrawPadCanvas->currentPage());
+ painter.begin(m_pDrawPadCanvas->currentPage()->pixmap());
painter.setPen(pen);
m_polyline[2] = m_polyline[1];
m_polyline[1] = m_polyline[0];
@@ -69,7 +69,7 @@ void EraseTool::mouseMoveEvent(QMouseEvent* e)
m_pDrawPadCanvas->contentsToViewport(r.bottomRight()));
bitBlt(m_pDrawPadCanvas->viewport(), viewportRect.x(), viewportRect.y(),
- m_pDrawPadCanvas->currentPage(), r.x(), r.y(), r.width(), r.height());
+ m_pDrawPadCanvas->currentPage()->pixmap(), r.x(), r.y(), r.width(), r.height());
m_pDrawPadCanvas->viewport()->update(viewportRect);
}
diff --git a/noncore/graphics/drawpad/filltool.cpp b/noncore/graphics/drawpad/filltool.cpp
index 0177e1c..2a39d04 100644
--- a/noncore/graphics/drawpad/filltool.cpp
+++ b/noncore/graphics/drawpad/filltool.cpp
@@ -35,11 +35,13 @@ void FillTool::mousePressEvent(QMouseEvent* e)
int x = e->x();
int y = e->y();
- m_image = m_pDrawPadCanvas->currentPage()->convertToImage();
+ m_image = m_pDrawPadCanvas->currentPage()->pixmap()->convertToImage();
m_fillRgb = m_pDrawPad->brush().color().rgb();
m_oldRgb = m_image.pixel(x, y);
if (m_oldRgb != m_fillRgb) {
+ m_pDrawPadCanvas->backupPage();
+
if (m_pDrawPad->antiAliasing()) {
m_mask.create(m_image.width(), m_image.height(), 8, 2);
m_mask.fill(0);
@@ -58,10 +60,8 @@ void FillTool::mousePressEvent(QMouseEvent* e)
fillLine(x, y);
}
- m_pDrawPadCanvas->currentPage()->convertFromImage(m_image);
+ m_pDrawPadCanvas->currentPage()->pixmap()->convertFromImage(m_image);
m_pDrawPadCanvas->viewport()->update();
-
- m_pDrawPadCanvas->backupPage();
}
}
@@ -111,31 +111,31 @@ void FillTool::fillMaskLine(int x, int y)
{
if ((x >= 0) && (x < m_image.width()) && (y >= 0) && (y < m_image.height())) {
if (m_mask.pixelIndex(x, y) == 0) {
- if (rgbDistance(m_image.pixel(x, y), m_oldRgb) < FILL_THRESHOLD) {
- int x1, x2;
+ if (rgbDistance(m_image.pixel(x, y), m_oldRgb) < FILL_THRESHOLD) {
+ int x1, x2;
- x1 = x - 1;
- x2 = x + 1;
+ x1 = x - 1;
+ x2 = x + 1;
- while ((x1 >= 0) && (rgbDistance(m_image.pixel(x1, y), m_oldRgb) < FILL_THRESHOLD)) {
- x1--;
- }
+ while ((x1 >= 0) && (rgbDistance(m_image.pixel(x1, y), m_oldRgb) < FILL_THRESHOLD)) {
+ x1--;
+ }
- while ((x2 < m_image.width()) && (rgbDistance(m_image.pixel(x2, y), m_oldRgb) < FILL_THRESHOLD)) {
- x2++;
- }
+ while ((x2 < m_image.width()) && (rgbDistance(m_image.pixel(x2, y), m_oldRgb) < FILL_THRESHOLD)) {
+ x2++;
+ }
- for (int i = x1 + 1; i < x2; i++) {
- m_mask.setPixel(i, y, 1);
- }
+ for (int i = x1 + 1; i < x2; i++) {
+ m_mask.setPixel(i, y, 1);
+ }
- for (int i = x1 + 1; i < x2; i++) {
- fillMaskLine(i, y - 1);
- }
+ for (int i = x1 + 1; i < x2; i++) {
+ fillMaskLine(i, y - 1);
+ }
- for (int i = x1 + 1; i < x2; i++) {
- fillMaskLine(i, y + 1);
- }
+ for (int i = x1 + 1; i < x2; i++) {
+ fillMaskLine(i, y + 1);
+ }
}
}
}
diff --git a/noncore/graphics/drawpad/page.cpp b/noncore/graphics/drawpad/page.cpp
index 601d1c3..fbf3d01 100644
--- a/noncore/graphics/drawpad/page.cpp
+++ b/noncore/graphics/drawpad/page.cpp
@@ -13,28 +13,41 @@
#include "page.h"
+const int PAGE_BACKUPS = 99;
+
Page::Page()
- : QPixmap()
{
+ m_title = "";
m_lastModified = QDateTime::currentDateTime();
+ m_pPixmap = new QPixmap();
+
+ m_backHistory.setAutoDelete(true);
+ m_forwardHistory.setAutoDelete(true);
}
Page::Page(QString title, int w, int h)
- : QPixmap(w, h)
{
m_title = title;
m_lastModified = QDateTime::currentDateTime();
+ m_pPixmap = new QPixmap(w, h);
+
+ m_backHistory.setAutoDelete(true);
+ m_forwardHistory.setAutoDelete(true);
}
Page::Page(QString title, const QSize& size)
- : QPixmap(size)
{
m_title = title;
m_lastModified = QDateTime::currentDateTime();
+ m_pPixmap = new QPixmap(size);
+
+ m_backHistory.setAutoDelete(true);
+ m_forwardHistory.setAutoDelete(true);
}
Page::~Page()
{
+ delete m_pPixmap;
}
QString Page::title() const
@@ -47,6 +60,12 @@ QDateTime Page::lastModified() const
return m_lastModified;
}
+QPixmap* Page::pixmap() const
+
+{
+ return m_pPixmap;
+}
+
void Page::setTitle(QString title)
{
m_title = title;
@@ -57,3 +76,38 @@ void Page::setLastModified(QDateTime lastModified)
m_lastModified = lastModified;
}
+bool Page::undoEnabled()
+{
+ return (!m_backHistory.isEmpty());
+}
+
+bool Page::redoEnabled()
+{
+ return (!m_forwardHistory.isEmpty());
+}
+
+void Page::backup()
+{
+ setLastModified(QDateTime::currentDateTime());
+
+ while (m_backHistory.count() >= (PAGE_BACKUPS + 1)) {
+ m_backHistory.removeFirst();
+ }
+
+ m_backHistory.append(new QPixmap(*m_pPixmap));
+ m_forwardHistory.clear();
+}
+
+void Page::undo()
+{
+ m_forwardHistory.append(new QPixmap(*m_pPixmap));
+ m_pPixmap = new QPixmap(*(m_backHistory.last()));
+ m_backHistory.removeLast();
+}
+
+void Page::redo()
+{
+ m_backHistory.append(new QPixmap(*m_pPixmap));
+ m_pPixmap = new QPixmap(*(m_forwardHistory.last()));
+ m_forwardHistory.removeLast();
+}
diff --git a/noncore/graphics/drawpad/page.h b/noncore/graphics/drawpad/page.h
index 20a37b5..8ce7bc9 100644
--- a/noncore/graphics/drawpad/page.h
+++ b/noncore/graphics/drawpad/page.h
@@ -14,11 +14,13 @@
#ifndef PAGE_H
#define PAGE_H
-#include <qpixmap.h>
+#include <qobject.h>
#include <qdatetime.h>
+#include <qlist.h>
+#include <qpixmap.h>
-class Page : public QPixmap
+class Page : public QObject
{
public:
Page();
@@ -26,16 +28,28 @@ public:
Page(QString title, const QSize& size);
~Page();
-
+
QString title() const;
QDateTime lastModified() const;
+ QPixmap* pixmap() const;
void setTitle(QString title);
void setLastModified(QDateTime lastModified);
+ bool undoEnabled();
+ bool redoEnabled();
+
+ void backup();
+ void undo();
+ void redo();
+
private:
QString m_title;
QDateTime m_lastModified;
+ QPixmap* m_pPixmap;
+
+ QList<QPixmap> m_backHistory;
+ QList<QPixmap> m_forwardHistory;
};
#endif // PAGE_H
diff --git a/noncore/graphics/drawpad/pageinformationdialog.cpp b/noncore/graphics/drawpad/pageinformationdialog.cpp
index c0d055e..cb14d73 100644
--- a/noncore/graphics/drawpad/pageinformationdialog.cpp
+++ b/noncore/graphics/drawpad/pageinformationdialog.cpp
@@ -43,10 +43,10 @@ PageInformationDialog::PageInformationDialog(Page* page, QWidget* parent, const
QGroupBox* sizeGroupBox = new QGroupBox(0, Qt::Vertical, tr("Size"), this);
QLabel* widthLabel = new QLabel(tr("Width:"), sizeGroupBox);
- QLabel* widthValueLabel = new QLabel(QString::number(m_pPage->width()), sizeGroupBox);
+ QLabel* widthValueLabel = new QLabel(QString::number(m_pPage->pixmap()->width()), sizeGroupBox);
QLabel* heightLabel = new QLabel(tr("Height:"), sizeGroupBox);
- QLabel* heightValueLabel = new QLabel(QString::number(m_pPage->height()), sizeGroupBox);
+ QLabel* heightValueLabel = new QLabel(QString::number(m_pPage->pixmap()->height()), sizeGroupBox);
QVBoxLayout* mainLayout = new QVBoxLayout(this, 4, 4);
generalGroupBox->layout()->setSpacing(4);
diff --git a/noncore/graphics/drawpad/pointtool.cpp b/noncore/graphics/drawpad/pointtool.cpp
index a4f846e..b9b52bc 100644
--- a/noncore/graphics/drawpad/pointtool.cpp
+++ b/noncore/graphics/drawpad/pointtool.cpp
@@ -33,6 +33,8 @@ PointTool::~PointTool()
void PointTool::mousePressEvent(QMouseEvent* e)
{
+ m_pDrawPadCanvas->backupPage();
+
m_mousePressed = true;
m_polyline[2] = m_polyline[1] = m_polyline[0] = e->pos();
}
@@ -42,8 +44,6 @@ void PointTool::mouseReleaseEvent(QMouseEvent* e)
Q_UNUSED(e)
m_mousePressed = false;
-
- m_pDrawPadCanvas->backupPage();
}
void PointTool::mouseMoveEvent(QMouseEvent* e)
@@ -61,7 +61,7 @@ void PointTool::mouseMoveEvent(QMouseEvent* e)
r.setBottom(r.bottom() + m_pDrawPad->pen().width());
QPainter painter;
- painter.begin(m_pDrawPadCanvas->currentPage());
+ painter.begin(m_pDrawPadCanvas->currentPage()->pixmap());
if (m_pDrawPad->antiAliasing()) {
QPixmap areaPixmap(r.width(), r.height());
@@ -104,7 +104,7 @@ void PointTool::mouseMoveEvent(QMouseEvent* e)
m_pDrawPadCanvas->contentsToViewport(r.bottomRight()));
bitBlt(m_pDrawPadCanvas->viewport(), viewportRect.x(), viewportRect.y(),
- m_pDrawPadCanvas->currentPage(), r.x(), r.y(), r.width(), r.height());
+ m_pDrawPadCanvas->currentPage()->pixmap(), r.x(), r.y(), r.width(), r.height());
m_pDrawPadCanvas->viewport()->update(viewportRect);
}
diff --git a/noncore/graphics/drawpad/shapetool.cpp b/noncore/graphics/drawpad/shapetool.cpp
index 8870a78..22e3dd6 100644
--- a/noncore/graphics/drawpad/shapetool.cpp
+++ b/noncore/graphics/drawpad/shapetool.cpp
@@ -32,6 +32,8 @@ ShapeTool::~ShapeTool()
void ShapeTool::mousePressEvent(QMouseEvent* e)
{
+ m_pDrawPadCanvas->backupPage();
+
m_mousePressed = true;
m_polyline[2] = m_polyline[1] = m_polyline[0] = e->pos();
}
@@ -41,7 +43,7 @@ void ShapeTool::mouseReleaseEvent(QMouseEvent* e)
Q_UNUSED(e)
QPainter painter;
- painter.begin(m_pDrawPadCanvas->currentPage());
+ painter.begin(m_pDrawPadCanvas->currentPage()->pixmap());
drawFinalShape(painter);
painter.end();
@@ -56,13 +58,11 @@ void ShapeTool::mouseReleaseEvent(QMouseEvent* e)
m_pDrawPadCanvas->contentsToViewport(r.bottomRight()));
bitBlt(m_pDrawPadCanvas->viewport(), viewportRect.x(), viewportRect.y(),
- m_pDrawPadCanvas->currentPage(), r.x(), r.y(), r.width(), r.height());
+ m_pDrawPadCanvas->currentPage()->pixmap(), r.x(), r.y(), r.width(), r.height());
m_pDrawPadCanvas->viewport()->update(viewportRect);
m_mousePressed = false;
-
- m_pDrawPadCanvas->backupPage();
}
void ShapeTool::mouseMoveEvent(QMouseEvent* e)
@@ -70,7 +70,7 @@ void ShapeTool::mouseMoveEvent(QMouseEvent* e)
if (m_mousePressed) {
m_polyline[0] = e->pos();
QPainter painter;
- painter.begin(m_pDrawPadCanvas->currentPage());
+ painter.begin(m_pDrawPadCanvas->currentPage()->pixmap());
drawTemporaryShape(painter);
painter.end();
@@ -85,7 +85,7 @@ void ShapeTool::mouseMoveEvent(QMouseEvent* e)
m_pDrawPadCanvas->contentsToViewport(r.bottomRight()));
bitBlt(m_pDrawPadCanvas->viewport(), viewportRect.x(), viewportRect.y(),
- m_pDrawPadCanvas->currentPage(), r.x(), r.y(), r.width(), r.height());
+ m_pDrawPadCanvas->currentPage()->pixmap(), r.x(), r.y(), r.width(), r.height());
m_pDrawPadCanvas->viewport()->update(viewportRect);
diff --git a/noncore/graphics/drawpad/texttool.cpp b/noncore/graphics/drawpad/texttool.cpp
index 34c8a76..9037abd 100644
--- a/noncore/graphics/drawpad/texttool.cpp
+++ b/noncore/graphics/drawpad/texttool.cpp
@@ -56,15 +56,15 @@ void TextTool::mousePressEvent(QMouseEvent* e)
TextToolDialog textToolDialog(m_pDrawPad);
if (textToolDialog.exec() == QDialog::Accepted && !textToolDialog.text().isEmpty()) {
+ m_pDrawPadCanvas->backupPage();
+
QPainter painter;
- painter.begin(m_pDrawPadCanvas->currentPage());
+ painter.begin(m_pDrawPadCanvas->currentPage()->pixmap());
painter.setPen(m_pDrawPad->pen());
painter.drawText(e->x(), e->y(), textToolDialog.text());
painter.end();
m_pDrawPadCanvas->viewport()->update();
-
- m_pDrawPadCanvas->backupPage();
}
}
diff --git a/noncore/graphics/drawpad/thumbnailview.cpp b/noncore/graphics/drawpad/thumbnailview.cpp
index 14092bf..9b08ca2 100644
--- a/noncore/graphics/drawpad/thumbnailview.cpp
+++ b/noncore/graphics/drawpad/thumbnailview.cpp
@@ -35,7 +35,7 @@ PageListBoxItem::PageListBoxItem(Page* page, QListBox* parent)
{
m_pPage = page;
- QImage image = m_pPage->convertToImage();
+ QImage image = m_pPage->pixmap()->convertToImage();
int previewWidth = THUMBNAIL_SIZE;
int previewHeight = THUMBNAIL_SIZE;
@@ -57,8 +57,8 @@ PageListBoxItem::PageListBoxItem(Page* page, QListBox* parent)
m_thumbnail.convertFromImage(thumbnailImage);
m_titleText = QObject::tr("Title:") + " " + m_pPage->title();
- m_dimensionText = QObject::tr("Dimension:") + " " + QString::number(m_pPage->width())
- + "x" + QString::number(m_pPage->height());
+ m_dimensionText = QObject::tr("Dimension:") + " " + QString::number(m_pPage->pixmap()->width())
+ + "x" + QString::number(m_pPage->pixmap()->height());
m_dateText = QObject::tr("Date:") + " " + dateTimeString(m_pPage->lastModified());
QColor baseColor = parent->colorGroup().base();