Print preview

4 files changed, 33 insertions, 4 deletions

diff --git a/dbmodel.qrc b/dbmodel.qrc
index 1a41100..f7de8dc 100644
--- a/dbmodel.qrc
+++ b/dbmodel.qrc
@@ -9,6 +9,7 @@
 	<file>icons/16x16/document-save.png</file>
 	<file>icons/16x16/document-save-as.png</file>
 	<file>icons/16x16/document-print.png</file>
+	<file>icons/16x16/document-print-preview.png</file>
 	<file>icons/16x16/edit-undo.png</file>
 	<file>icons/16x16/edit-redo.png</file>
 	<file>icons/16x16/edit-delete.png</file>
diff --git a/icons/16x16/document-print-preview.png b/icons/16x16/document-print-preview.png
new file mode 100644
index 0000000..ab92a30
--- /dev/null
+++ b/icons/16x16/document-print-preview.png
diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index 85a526d..244cf4a 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -27,6 +27,7 @@
 #include <QSettings>
 #include <QPrinter>
 #include <QPrintDialog>
+#include <QPrintPreviewDialog>
 #include <QMessageBox>
 #include <QDebug>
 #include <QDockWidget>
@@ -54,6 +55,7 @@ public:
 	QMap<QString, int> propertyEditorsIndexes;
 
     QAction *printAction;
+    QAction *printPreviewAction;
 
 	QActionGroup *notationActionGroup;
 	QMenu *notationMenu;
@@ -224,8 +226,15 @@ MainWindow::setupActions()
     d->printAction = new QAction(this);
     d->printAction->setText(tr("&Print..."));
     d->printAction->setIcon(loadIcon("document-print"));
+    d->printAction->setShortcut(QKeySequence(tr("Ctrl+P")));
     connect(d->printAction, SIGNAL(triggered(bool)), SLOT(print()));
 
+    d->printPreviewAction = new QAction(this);
+    d->printPreviewAction->setText(tr("Print Previe&w..."));
+    d->printPreviewAction->setIcon(loadIcon("document-print-preview"));
+    d->printPreviewAction->setShortcut(QKeySequence(tr("Ctrl+Shift+P")));
+    connect(d->printPreviewAction, SIGNAL(triggered(bool)), SLOT(printPreview()));
+
 	for (int i = 0; i < MaxRecentFiles; i++) {
 		m_actionRecentFile[i] = new QAction(this);
 		m_actionRecentFile[i]->setVisible(false);
@@ -386,6 +395,7 @@ MainWindow::setupMenuBar()
 	menu->addSeparator();
 
 	menu->addAction(m_actionExportPNG);
+	menu->addAction(d->printPreviewAction);
 	menu->addAction(d->printAction);
 	m_actionRecentFilesSeparator = menu->addSeparator();
 	for (int i = 0; i < MaxRecentFiles; i++)
@@ -508,14 +518,28 @@ MainWindow::print()
     QPrinter printer;
     QPrintDialog printDialog(&printer, this);
     if (printDialog.exec() == QDialog::Accepted) {
-        QPainter painter(&printer);
-        m_model->setPrinting(true);
-        m_model->render(&painter);
-        m_model->setPrinting(false);
+        paintOnPrinter(&printer);
     }
 }
 
 void
+MainWindow::printPreview()
+{
+    QPrintPreviewDialog printPreviewDialog(this);
+    connect(&printPreviewDialog, SIGNAL(paintRequested(QPrinter*)), SLOT(paintOnPrinter(QPrinter*)));
+    printPreviewDialog.exec();
+}
+
+void
+MainWindow::paintOnPrinter(QPrinter *printer)
+{
+    QPainter painter(printer);
+    m_model->setPrinting(true);
+    m_model->render(&painter);
+    m_model->setPrinting(false);
+}
+
+void
 MainWindow::newModel(DiagramDocument *newModel)
 {
 	if (!newModel) {
diff --git a/src/mainwindow.h b/src/mainwindow.h
index 4f059cc..6c1a094 100644
--- a/src/mainwindow.h
+++ b/src/mainwindow.h
@@ -26,6 +26,8 @@
 #include "diagramview.h"
 #include "diagramdocument.h"
 
+class QPrinter;
+
 class MainWindow: public QMainWindow
 {
 	Q_OBJECT
@@ -54,6 +56,8 @@ public slots:
 	bool saveAs();
 	void exportDocument();
 	void print();
+	void printPreview();
+	void paintOnPrinter(QPrinter *);
 	void setViewScale(const QString &scale);
 	void about();