# HG changeset patch
# User Chris Cannam
# Date 1173713791 0
# Node ID 3fff180a254b8c5bf7c97d9b00e3c8b556417338
# Parent  863a470df510a378e2d130c2b070afb6a17a4568
* Add basics of an Export Image File function

diff -r 863a470df510 -r 3fff180a254b main/MainWindow.cpp
--- a/main/MainWindow.cpp	Fri Mar 09 18:18:30 2007 +0000
+++ b/main/MainWindow.cpp	Mon Mar 12 15:36:31 2007 +0000
@@ -311,6 +311,8 @@
         return ff->getOpenFileName(type, m_sessionFile);
     case FileFinder::SessionOrAudioFile:
         return ff->getOpenFileName(type, m_sessionFile);
+    case FileFinder::ImageFile:
+        return ff->getOpenFileName(type, m_sessionFile);
     case FileFinder::AnyFile:
         if (getMainModel() != 0 &&
             m_paneStack != 0 &&
@@ -337,6 +339,8 @@
         return ff->getSaveFileName(type, m_sessionFile);
     case FileFinder::SessionOrAudioFile:
         return ff->getSaveFileName(type, m_sessionFile);
+    case FileFinder::ImageFile:
+        return ff->getSaveFileName(type, m_sessionFile);
     case FileFinder::AnyFile:
         return ff->getSaveFileName(type, m_sessionFile);
     }
@@ -484,6 +488,14 @@
 
     menu->addSeparator();
 
+    action = new QAction(tr("Export Image File..."), this);
+    action->setStatusTip(tr("Export a single pane to an image file"));
+    connect(action, SIGNAL(triggered()), this, SLOT(exportImage()));
+    connect(this, SIGNAL(canExportImage(bool)), action, SLOT(setEnabled(bool)));
+    menu->addAction(action);
+
+    menu->addSeparator();
+
     action = new QAction(tr("Open Lo&cation..."), this);
     action->setShortcut(tr("Ctrl+Shift+O"));
     action->setStatusTip(tr("Open or import a file from a remote URL"));
@@ -1619,6 +1631,7 @@
     emit canExportAudio(haveMainModel);
     emit canExportLayer(haveMainModel &&
                         (haveCurrentEditableLayer || haveCurrentColour3DPlot));
+    emit canExportImage(haveMainModel && haveCurrentPane);
     emit canDeleteCurrentLayer(haveCurrentLayer);
     emit canRenameLayer(haveCurrentLayer);
     emit canEditLayer(haveCurrentEditableLayer);
@@ -2278,6 +2291,29 @@
     }
 }
 
+void
+MainWindow::exportImage()
+{
+    Pane *pane = m_paneStack->getCurrentPane();
+    if (!pane) return;
+    
+    QString path = getSaveFileName(FileFinder::ImageFile);
+
+    if (path == "") return;
+
+    if (QFileInfo(path).suffix() == "") path += ".png";
+
+    QImage *image = pane->toNewImage();
+    if (!image) return;
+
+    if (!image->save(path, "PNG")) {
+        QMessageBox::critical(this, tr("Failed to save image file"),
+                              tr("Failed to save image file %1").arg(path));
+    }
+    
+    delete image;
+}
+
 MainWindow::FileOpenStatus
 MainWindow::openAudioFile(QString path, AudioFileOpenMode mode)
 {
diff -r 863a470df510 -r 3fff180a254b main/MainWindow.h
--- a/main/MainWindow.h	Fri Mar 09 18:18:30 2007 +0000
+++ b/main/MainWindow.h	Mon Mar 12 15:36:31 2007 +0000
@@ -93,6 +93,7 @@
     void canImportLayer(bool);
     void canExportAudio(bool);
     void canExportLayer(bool);
+    void canExportImage(bool);
     void canRenameLayer(bool);
     void canEditLayer(bool);
     void canSelect(bool);
@@ -123,6 +124,7 @@
     void exportAudio();
     void importLayer();
     void exportLayer();
+    void exportImage();
     void saveSession();
     void saveSessionAs();
     void newSession();