Add a bunch of new files specifically for providing a new OpenGL-backed basis for doing visuals within Qt/Lumina.

1 files changed, 63 insertions, 0 deletions

diff --git a/src-qt5/src-glwidgets/glw-base.cpp b/src-qt5/src-glwidgets/glw-base.cpp
new file mode 100644
index 00000000..e828df7f
--- /dev/null
+++ b/src-qt5/src-glwidgets/glw-base.cpp
@@ -0,0 +1,63 @@
+//===========================================
+//  Lumina-desktop source code
+//  Copyright (c) 2017, Ken Moore
+//  Available under the 3-clause BSD license
+//  See the LICENSE file for full details
+//===========================================
+#include "glw-base.h"
+#include "glw-widget.h"
+
+GLW_Base::GLW_Base(QWidget *parent, Qt::WindowFlags f) : QOpenGLWidget(parent,f){
+  bg_color = QColor(Qt::black);
+}
+
+GLW_Base::~GLW_Base(){
+
+}
+
+// --- PUBLIC SLOTS ---
+void GLW_Base::setBackgroundColor(QColor color){
+  bg_color = color;
+  this->update(); //repaint the entire widget (just in case you can see through the image)
+
+}
+
+void GLW_Base::setBackground(QRect geom, QImage img){
+  QPainter P(&bg_img);
+  P.drawImage(geom, img);
+  this->update();
+}
+
+void GLW_Base::repaintArea(QRect rect){
+  paintEvent(new QPaintEvent(rect));
+}
+
+// --- PROTECTED ---
+void GLW_Base::resizeEvent(QResizeEvent *ev){
+  QOpenGLWidget::resizeEvent(ev);
+  if(!bg_img.isNull()){
+    bg_img = bg_img.scaled(ev->size(), Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
+  }
+  emit BaseResized();
+}
+
+void GLW_Base::paintEvent(QPaintEvent *ev){
+  QStylePainter painter(this);
+  painter.setClipRegion(ev->rect());
+  //Fill in the background color first
+  painter.fillRect(ev->rect(), bg_color);
+  //Now paint any background image over that
+  painter.drawImage(ev->rect(), bg_img, ev->rect(), Qt::AutoColor | Qt::PreferDither | Qt::NoOpaqueDetection);
+  //Now find any children widgets and paint them if they are in that area
+  QObjectList child = this->children(); //Note: This is returned in stacking order (lowest -> highest)
+  for(int i=0; i<child.length(); i++){
+    if( !child[i]->isWidgetType() ){ continue; } //not a widget
+    GLW_Widget *glww = qobject_cast<GLW_Widget*>(child[i]);
+    if(glww!=0){
+      if(ev->rect().contains(glww->widgetRect())){
+        glww->paintYourself(&painter, ev);
+        glww->paintChildren(&painter,ev);
+      }
+    }
+  }
+}