Store Sequence sequence location in a shared_ptr class

[mussa.git] / qui / ImageSaveDialog.cpp

diff --git a/qui/ImageSaveDialog.cpp b/qui/ImageSaveDialog.cpp
index 0357af402dc97c7585c1a2995b4d8053d045c8c1..3248e3a9bdeaf870f6315ace5e786154d5c7a071 100644 (file)
--- a/qui/ImageSaveDialog.cpp
+++ b/qui/ImageSaveDialog.cpp
@@ -7,28 +7,36 @@
 #include <QPushButton>
 #include <QGLWidget>
 
+// Win32 debug includes
+//#include <QMessageBox>
+//#include <sstream>
+//#include <string>
+//#include <QString>
+
 #include "ImageSaveDialog.hpp"
 #include "ImageScaler.hpp"
 
 #include <iostream>
 
-ImageSaveDialog::ImageSaveDialog(QGLWidget *newglwidget, QWidget *parent)
-  : QDialog(parent)
+#include <boost/filesystem/path.hpp>
+namespace fs = boost::filesystem;
+
+ImageSaveDialog::ImageSaveDialog(boost::shared_ptr<QDir> default_dir_,
+                                ScrollableSequenceBrowser *scrollSeqBrowser, 
+                                QWidget *parent)
+  : QDialog(parent),
+    glwidget(scrollSeqBrowser->browser(), parent),
+    default_dir(default_dir_)
 {
   setWindowTitle(tr("Mussa Save Image"));
 
   // Init
-  glwidget = newglwidget;
+
   //pixmap = 0;
   imageScaler = new ImageScaler();
 
-  if (glwidget)
-  {
-    QSize tmpSize;
-    tmpSize = glwidget->size();
-    imageScaler->setWidth(tmpSize.width());
-    imageScaler->setHeight(tmpSize.height());
-  }
+  imageScaler->setWidth(static_cast<int>(glwidget.width()));
+  imageScaler->setHeight(static_cast<int>(glwidget.height()));
   
   // Save Button
   saveButton = new QPushButton(tr("Save"));
@@ -58,6 +66,12 @@ ImageSaveDialog::ImageSaveDialog(QGLWidget *newglwidget, QWidget *parent)
   layout->addStretch(1);
   layout->addLayout(button_layout);
   setLayout(layout);
+
+}
+
+QDir ImageSaveDialog::defaultDir() const
+{
+  return *default_dir;
 }
 
 void ImageSaveDialog::accept()
@@ -95,14 +109,32 @@ QSize ImageSaveDialog::getOpenGlPixmapSize()
 
 QPixmap ImageSaveDialog::renderOpenGlPixmap()
 {
-  if (!glwidget)
-    return QPixmap();
-
-  
   QSize size = getOpenGlPixmapSize();
   if (size.isValid()) 
   {
-    QPixmap pixmap = glwidget->renderPixmap(size.width(), size.height());
+    double cur_bp_per_pixel = glwidget.zoom();
+    float cur_width = glwidget.width();
+    float cur_height = glwidget.height();
+    
+    // Useful debug code (in windows)... hopefully never to be used again. =o)
+    //QString msg = "Zoom:   " + QString().setNum(cur_bp_per_pixel) + "\n" + 
+    //  "Width:  " + QString().setNum(cur_width) + "\n" +
+    //  "Height: " + QString().setNum(cur_height) + "\n";
+    //
+    //QMessageBox::information(this, "Debug2", 
+    //                      msg );
+    //
+
+    // When the width requested by the user is doubled, the 
+    // bp per pixel is halved in order to scale the image properly.
+    double new_bp_per_pixel = ( cur_width / size.width() ) * cur_bp_per_pixel;
+
+    // bp per pixel needs to be scaled based when the width changes
+    glwidget.setZoom(new_bp_per_pixel);
+
+    // draw pixmp
+    QPixmap pixmap = glwidget.renderPixmap(size.width(), size.height());
+
     return pixmap;    
   }
   return QPixmap();
@@ -113,7 +145,7 @@ void ImageSaveDialog::savePixmap(bool &endDialog)
   QString filePath;
   filePath = QFileDialog::getSaveFileName(this,
             "Choose a filename to save image",
-            ".",
+            default_dir->absolutePath(),
             "Images (*.png *.jpg)");  
 
   if (filePath.isNull()) {
@@ -136,5 +168,7 @@ void ImageSaveDialog::savePixmap(bool &endDialog)
       filePath.append(".png");
       pixmap.save(filePath, "PNG");
     }
+    fs::path path(filePath.toStdString(), fs::native);
+    default_dir->setPath(path.branch_path().native_directory_string().c_str());
   }
 }