9 files changed, 309 insertions, 0 deletions

diff --git a/src-qt5/src-glwidgets/gltest/colorchange.h b/src-qt5/src-glwidgets/gltest/colorchange.h
new file mode 100644
index 00000000..d62fcd5c
--- /dev/null
+++ b/src-qt5/src-glwidgets/gltest/colorchange.h
@@ -0,0 +1,35 @@
+#include <QDebug>
+#include <QApplication>
+#include <QTimer>
+#include <QColor>
+
+#include "../glw-base.h"
+
+class colorchange : public QObject{
+	Q_OBJECT
+private:
+  GLW_Base *base;
+  QTimer *timer;
+
+public slots:
+  void toggle(){
+    static int current = 0;
+    if(current==0){
+      base->setBackgroundColor(QColor(Qt::red));
+    }else{
+      base->setBackgroundColor(QColor(Qt::blue));
+      current = -1;
+    }
+    current++;
+  }
+
+public:
+  colorchange(GLW_Base *parent) : QObject(){
+    base = parent;
+    timer = new QTimer(this);
+    timer->setInterval(5000);
+    connect(timer, SIGNAL(timeout()), this, SLOT(toggle()) );
+    timer->start();
+  }
+
+};
diff --git a/src-qt5/src-glwidgets/gltest/main.cpp b/src-qt5/src-glwidgets/gltest/main.cpp
new file mode 100644
index 00000000..041ee5ff
--- /dev/null
+++ b/src-qt5/src-glwidgets/gltest/main.cpp
@@ -0,0 +1,26 @@
+#include <QDebug>
+#include <QApplication>
+#include <QTimer>
+#include <QColor>
+
+#include "../glw-base.h"
+#include "../glw-widget.h"
+
+#include "colorchange.h"
+
+int main(int argc, char** argv){
+  QApplication A(argc,argv);
+    qDebug() << "Creating base widget";
+    GLW_Base base;
+      qDebug() << "Resize base widget";
+    base.resize(200,200);
+      qDebug() << "Create colorchange";
+    GLW_Widget wgt(&base);
+      wgt.setGLBase(&base);
+      wgt.setGeometry(50,50,50,50);
+    colorchange CC(&base);
+      qDebug() << "Start Event loop";
+    base.show();
+  A.exec();
+    qDebug() << " - Finished";
+}
diff --git a/src-qt5/src-glwidgets/gltest/test b/src-qt5/src-glwidgets/gltest/test
new file mode 100755
index 00000000..5a69b0c3
--- /dev/null
+++ b/src-qt5/src-glwidgets/gltest/test
diff --git a/src-qt5/src-glwidgets/gltest/test.pro b/src-qt5/src-glwidgets/gltest/test.pro
new file mode 100644
index 00000000..cba315c3
--- /dev/null
+++ b/src-qt5/src-glwidgets/gltest/test.pro
@@ -0,0 +1,9 @@
+QT = core gui widgets
+
+TARGET = test
+
+SOURCES += main.cpp
+
+HEADERS += colorchange.h
+
+include(../glwidgets.pri);
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);
+      }
+    }
+  }
+}
diff --git a/src-qt5/src-glwidgets/glw-base.h b/src-qt5/src-glwidgets/glw-base.h
new file mode 100644
index 00000000..729aa68e
--- /dev/null
+++ b/src-qt5/src-glwidgets/glw-base.h
@@ -0,0 +1,43 @@
+//===========================================
+//  Lumina-desktop source code
+//  Copyright (c) 2017, Ken Moore
+//  Available under the 3-clause BSD license
+//  See the LICENSE file for full details
+//===========================================
+#ifndef _LUMINA_OPENGL_WIDGETS_BASE_H
+#define _LUMINA_OPENGL_WIDGETS_BASE_H
+
+#include <QOpenGLWidget>
+#include <QImage>
+#include <QPaintEvent>
+#include <QPainter>
+#include <QResizeEvent>
+#include <QStylePainter>
+
+class GLW_Base : public QOpenGLWidget{
+	Q_OBJECT
+private:
+	QColor bg_color;
+	QImage bg_img;
+
+public:
+	GLW_Base(QWidget *parent = Q_NULLPTR, Qt::WindowFlags f = Qt::WindowFlags());
+	~GLW_Base();
+
+
+private slots:
+
+public slots:
+	void setBackgroundColor(QColor color);
+	void setBackground(QRect geom, QImage img);
+	void repaintArea(QRect);
+
+signals:
+	void BaseResized();
+
+protected:
+	void resizeEvent(QResizeEvent *ev);
+	void paintEvent(QPaintEvent *ev);
+};
+
+#endif
diff --git a/src-qt5/src-glwidgets/glw-widget.cpp b/src-qt5/src-glwidgets/glw-widget.cpp
new file mode 100644
index 00000000..e24d8166
--- /dev/null
+++ b/src-qt5/src-glwidgets/glw-widget.cpp
@@ -0,0 +1,76 @@
+//===========================================
+//  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-widget.h"
+#include <QDebug>
+
+// --- PUBLIC ---
+GLW_Widget::GLW_Widget(QWidget *parent, Qt::WindowFlags f) : QWidget(parent, f){
+  glw_base = 0;
+  this->setMouseTracking(true);
+}
+
+GLW_Widget::~GLW_Widget(){
+
+}
+
+QRect GLW_Widget::widgetRect(){
+  QPoint pos = this->mapTo(glw_base, QPoint(0,0));
+  return QRect(pos, this->size());
+}
+
+bool GLW_Widget::mouseOverWidget(){
+  QPoint pos = this->mapFromGlobal(QCursor::pos());
+  QRect geom(QPoint(0,0), this->size());
+  return geom.contains(pos);
+
+}
+
+void GLW_Widget::setGLBase(GLW_Base *base){
+  if(glw_base!=0){ this->disconnect(glw_base, SLOT(repaintArea(QRect))); }
+  glw_base=base;
+  connect(this, SIGNAL(repaintArea(QRect)), glw_base, SLOT(repaintArea(QRect)) );
+}
+
+void GLW_Widget::paintYourself(QStylePainter *painter, QPaintEvent *ev){
+  QRect rect = widgetRect();
+  rect = rect.intersected(ev->rect());
+  QColor color( mouseOverWidget() ? Qt::gray : Qt::yellow);
+  color.setAlpha(125);
+  painter->fillRect(rect, color);
+}
+
+void GLW_Widget::paintChildren(QStylePainter *painter, QPaintEvent *ev){
+  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);
+      }
+    }
+  }
+}
+
+
+// --- PROTECTED ---
+void GLW_Widget::resizeEvent(QResizeEvent *ev){
+  if(glw_base==0){ return; }
+  QPoint pos = this->mapTo(glw_base, QPoint(0,0));
+  QSize sz = ev->oldSize();
+  if(ev->size().width() > sz.width()){ sz.setWidth(ev->size().width()); }
+  if(ev->size().height() > sz.height()){ sz.setHeight(ev->size().height()); }
+  emit repaintArea(QRect(pos, sz));
+}
+
+void GLW_Widget::paintEvent(QPaintEvent *ev){
+  //qDebug() << "Got paint event:" << ev->rect();
+  QPoint pos = this->mapTo(glw_base, ev->rect().topLeft());
+  emit repaintArea(QRect(pos, ev->rect().size()) );
+  return;
+}
diff --git a/src-qt5/src-glwidgets/glw-widget.h b/src-qt5/src-glwidgets/glw-widget.h
new file mode 100644
index 00000000..1d6caa77
--- /dev/null
+++ b/src-qt5/src-glwidgets/glw-widget.h
@@ -0,0 +1,50 @@
+//===========================================
+//  Lumina-desktop source code
+//  Copyright (c) 2017, Ken Moore
+//  Available under the 3-clause BSD license
+//  See the LICENSE file for full details
+//===========================================
+#ifndef _LUMINA_OPENGL_WIDGETS_WIDGET_H
+#define _LUMINA_OPENGL_WIDGETS_WIDGET_H
+
+#include <QWidget>
+#include <QPaintEvent>
+#include <QStylePainter>
+#include <QResizeEvent>
+#include <QStylePainter>
+
+#include "glw-base.h"
+
+class GLW_Widget : public QWidget{
+	Q_OBJECT
+private:
+	GLW_Base *glw_base;
+
+public:
+	GLW_Widget(QWidget *parent = Q_NULLPTR, Qt::WindowFlags f = Qt::WindowFlags());
+	~GLW_Widget();
+
+	QRect widgetRect(); //converts to the coordinate scheme of the base widget
+	bool mouseOverWidget();
+
+	void setGLBase(GLW_Base *base);
+
+	virtual void paintYourself(QStylePainter *painter, QPaintEvent *ev);
+	void paintChildren(QStylePainter *painter, QPaintEvent *ev);
+
+private slots:
+
+public slots:
+
+protected:
+	void enterEvent(QEvent*){ this->update(); }
+	void leaveEvent(QEvent*){ this->update(); }
+	void resizeEvent(QResizeEvent *ev);
+	void paintEvent(QPaintEvent *ev);
+
+signals:
+	void repaintArea(QRect);
+};
+
+Q_DECLARE_INTERFACE(GLW_Widget, "GLW_Widget");
+#endif
diff --git a/src-qt5/src-glwidgets/glwidgets.pri b/src-qt5/src-glwidgets/glwidgets.pri
new file mode 100644
index 00000000..e391aef0
--- /dev/null
+++ b/src-qt5/src-glwidgets/glwidgets.pri
@@ -0,0 +1,7 @@
+QT *= widgets
+
+SOURCES *= $${PWD}/glw-base.cpp \
+		$${PWD}/glw-widget.cpp
+
+HEADERS *= $${PWD}/glw-base.h \
+		$${PWD}/glw-widget.h