Added cancel button on render dialog

src/interface/modeler/quickapp/MainModelerWindow.cpp

@@ -131,8 +131,6 @@ void MainModelerWindow::keyReleaseEvent(QKeyEvent *event)
         if (event->key() == Qt::Key_Escape)
         {
             render_process->stopRender();
-
-            setState(rootObject()->property("previous_state").toString());
         }
     }
     else

src/interface/modeler/quickapp/RenderPreviewProvider.cpp

@@ -15,6 +15,7 @@ RenderPreviewProvider::RenderPreviewProvider() :
 {
     canvas = NULL;
     pixbuf = new QImage(1, 1, QImage::Format_ARGB32);
+    hide();
 }
 
 RenderPreviewProvider::~RenderPreviewProvider()
@@ -42,6 +43,7 @@ void RenderPreviewProvider::setCanvas(const Canvas *canvas)
     if (not this->canvas)
     {
         this->canvas = canvas;
+        pixbuf->fill(Qt::black);
         canvas->getPreview()->initLive(this);
     }
 }
@@ -55,6 +57,11 @@ void RenderPreviewProvider::releaseCanvas()
     }
 }
 
+void RenderPreviewProvider::hide()
+{
+    pixbuf->fill(Qt::black);
+}
+
 void RenderPreviewProvider::setToneMapping(const ColorProfile &profile)
 {
     if (canvas)

src/interface/modeler/quickapp/RenderPreviewProvider.h

@@ -30,6 +30,11 @@ public:
      */
     void releaseCanvas();
 
+    /**
+     * Call when the image is hidden, to clear it for next render.
+     */
+    void hide();
+
     /**
      * Set the tone mapping to apply to pixel colors.
      */

src/interface/modeler/quickapp/RenderProcess.cpp

@@ -2,6 +2,7 @@
 
 #include <QSize>
 #include <QTime>
+#include <QQuickItem>
 #include "MainModelerWindow.h"
 #include "SoftwareCanvasRenderer.h"
 #include "RenderPreviewProvider.h"
@@ -55,6 +56,11 @@ RenderProcess::RenderProcess(MainModelerWindow *window, RenderPreviewProvider *d
         connect(button_show, SIGNAL(clicked()), this, SLOT(showPreviousRender()));
     }
 
+    QObject *button_cancel = window->findQmlObject("render_cancel");
+    if (button_cancel) {
+        connect(button_cancel, SIGNAL(clicked()), this, SLOT(stopRender()));
+    }
+
     startTimer(100);
 }
 
@@ -107,7 +113,7 @@ void RenderProcess::startRender(Scenery *scenery, const RenderConfig &config)
 
     // Resize preview
     QSize preview_size = getPreviewSize();
-    QObject *image = window->findQmlObject("preview_image");
+    QObject *image = window->findQmlObject("render_preview_image");
     if (image) {
         image->setProperty("width", preview_size.width());
         image->setProperty("height", preview_size.height());
@@ -143,6 +149,9 @@ void RenderProcess::showPreviousRender()
 {
     if (not rendering and has_render)
     {
+        destination->setCanvas(renderer->getCanvas());
+        destination->releaseCanvas();
+
         window->setState("Render Dialog");
     }
 }
@@ -153,6 +162,11 @@ void RenderProcess::stopRender()
     {
         renderer->interrupt();
     }
+    else
+    {
+        destination->hide();
+        window->setState(window->rootObject()->property("previous_state").toString());
+    }
 }
 
 const QSize RenderProcess::getPreviewSize()

src/interface/modeler/quickapp/RenderProcess.h

@@ -21,11 +21,6 @@ public:
      */
     void startRender(Scenery *scenery, const RenderConfig &config);
 
-    /**
-     * Stop any currently running render.
-     */
-    void stopRender();
-
     /**
      * Get the size of the preview image.
      */
@@ -54,6 +49,11 @@ public slots:
      */
     void showPreviousRender();
 
+    /**
+     * Stop any currently running render.
+     */
+    void stopRender();
+
 protected:
     virtual void timerEvent(QTimerEvent *event) override;
 

src/interface/modeler/quickapp/qml/RenderDialog.qml

@@ -1,9 +1,11 @@
 import QtQuick 2.2
 import QtQuick.Controls 1.2
+import QtGraphicalEffects 1.0
 
 BaseRectangle {
     width: 400
     height: 300
+    color: "#222429"
 
     function refresh() {
         preview_image.source = "";
@@ -18,9 +20,29 @@ BaseRectangle {
         }
     }
 
+    ToolbarButton {
+        id: render_cancel
+        objectName: "render_cancel"
+        picture: "images/icon_cancel.png"
+        anchors.top: parent.top
+        anchors.right: parent.right
+        anchors.margins: 10
+        checkable: false
+        image_width: 48
+        image_height: 48
+    }
+
+    RectangularGlow {
+        anchors.fill: preview_image
+        glowRadius: 8
+        spread: 0.2
+        color: "#e0e0e8"
+        cornerRadius: glowRadius
+    }
+
     Image {
         id: preview_image
-        objectName: "preview_image"
+        objectName: "render_preview_image"
         anchors.centerIn: parent
         width: 100
         height: 100
@@ -43,6 +65,7 @@ BaseRectangle {
         anchors.top: render_progress.bottom
         anchors.horizontalCenter: render_progress.horizontalCenter
         anchors.topMargin: 20
+        color: "#dddddd"
     }
 
     Timer {

src/interface/modeler/quickapp/qml/ToolbarButton.qml

@@ -9,6 +9,7 @@ Item {
     property bool checked: false
     property bool hovered: false
     property bool toggle: false
+    property bool checkable: true
     property ExclusiveGroup exclusiveGroup: null
     property string helptext
     property string hovertext
@@ -98,6 +99,8 @@ Item {
                 return;
             }
 
+            if (button.checkable)
+            {
                 button.checked = !button.checked;
                 if (!button.toggle)
                 {
@@ -110,6 +113,8 @@ Item {
                         tooltip_widget.helptext = "";
                     }
                 }
+            }
+
             button.clicked();
         }
     }

src/interface/modeler/quickapp/qml/app.qrc

@@ -51,5 +51,6 @@
         <file>images/icon_preset.png</file>
         <file>images/icon_render_medium.png</file>
         <file>images/icon_render_final.png</file>
+        <file>images/icon_cancel.png</file>
     </qresource>
 </RCC>