From 74b22318b8df6c1e9355b73a16bb755a5178b8d6 Mon Sep 17 00:00:00 2001
From: Mavridis Philippe <mavridisf@gmail.com>
Date: Tue, 30 Mar 2021 13:58:33 +0300
Subject: Initial commit (KDE3 version)

Signed-off-by: Mavridis Philippe <mavridisf@gmail.com>
---
 src/komposegltaskwidget.cpp | 119 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 119 insertions(+)
 create mode 100644 src/komposegltaskwidget.cpp

(limited to 'src/komposegltaskwidget.cpp')

diff --git a/src/komposegltaskwidget.cpp b/src/komposegltaskwidget.cpp
new file mode 100644
index 0000000..69e1927
--- /dev/null
+++ b/src/komposegltaskwidget.cpp
@@ -0,0 +1,119 @@
+//
+// C++ Implementation: komposegltaskwidget
+//
+// Description:
+//
+//
+// Author: Hans Oischinger <oisch@sourceforge.net>, (C) 2004
+//
+// Copyright: See COPYING file that comes with this distribution
+//
+//
+#include "komposegltaskwidget.h"
+
+#include "komposetaskmanager.h"
+#include "komposetask.h"
+#include "komposelayout.h"
+#include <kdebug.h>
+
+#include <qgl.h>
+#include <qimage.h>
+
+
+
+KomposeGLTaskWidget::KomposeGLTaskWidget(KomposeTask *t, QObject *parent, KomposeLayout *l, const char *name)
+    : KomposeGLWidget(parent, l),
+    task(t)
+{
+  QImage img = task->getScreenshot().convertToImage();
+  img = img.smoothScale( 256, 256, QImage::ScaleMin );
+  tex = QGLWidget::convertToGLFormat( img );
+  glGenTextures(1, &texture);
+  glBindTexture(GL_TEXTURE_2D, texture);
+  /*  glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST); // cheap scaling when image bigger than texture
+    glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST); // cheap scaling when image smalled than texture*/
+  glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_S, GL_REPEAT);
+  glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_T, GL_REPEAT);
+  glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR); // scale linearly when image bigger than texture
+  glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR); // scale linearly when image smalled than texture
+
+  glTexEnvf (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
+
+  glTexImage2D( GL_TEXTURE_2D, 0, 3, 256, 256, 0,
+                GL_RGBA, GL_UNSIGNED_BYTE, tex.bits() );
+
+                
+
+  
+  connect( t, SIGNAL( closed() ), this, SLOT( slotTaskDestroyed() ) );
+  connect( t, SIGNAL( stateChanged() ), this, SLOT( draw() ) );
+}
+
+
+KomposeGLTaskWidget::~KomposeGLTaskWidget()
+{}
+
+void KomposeGLTaskWidget::slotTaskDestroyed()
+{
+  disconnect( task, SIGNAL( closed() ), this, SLOT( slotTaskDestroyed() ) );
+  disconnect( task, SIGNAL( stateChanged() ), this, SLOT( draw() ) );
+  if (KomposeTaskManager::instance()->hasActiveView())
+  {
+    this->parent()->removeChild( this );
+  }
+}
+
+int KomposeGLTaskWidget::getHeightForWidth ( int w ) const
+{
+  qDebug("KomposeGLTaskWidget::getHeightForWidth()");
+  return task->getHeightForWidth(w);
+}
+
+int KomposeGLTaskWidget::getWidthForHeight ( int h ) const
+{
+  qDebug("KomposeGLTaskWidget::getWidthForHeight()");
+  return task->getWidthForHeight(h);
+}
+
+double KomposeGLTaskWidget::getAspectRatio()
+{
+  qDebug("KomposeGLTaskWidget::getAspectRatio()");
+  return task->getAspectRatio();
+}
+
+void KomposeGLTaskWidget::draw()
+{
+  KomposeGLWidget::draw();
+  qDebug("KomposeGLTaskWidget::draw() - %d,%d %dx%d", getRect().x(), getRect().y(), getRect().width(), getRect().height());
+  glColor3f(1.0f, 0.0f, 0.0f);
+
+  glBindTexture(GL_TEXTURE_2D, texture);
+
+  /*  glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
+    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );*/
+  glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
+  glEnable( GL_TEXTURE_2D );
+
+  //   glTexImage2D( GL_TEXTURE_2D, 0, 3, tex.width(), tex.height(), 0,
+  //                 GL_RGBA, GL_UNSIGNED_BYTE, tex.bits() );
+  //  qDebug("KomposeGLTaskWidget::draw() - tex: %dx%d", tex.width(), tex.height() );
+
+  glBegin( GL_QUADS );
+  glTexCoord2f(0.0, 0.0);
+  glVertex2i( getRect().x(), getRect().y() );
+  glTexCoord2f(0.0, 1.0);
+  glVertex2i( getRect().x(), getRect().y() + getRect().height() );
+  glTexCoord2f(1.0, 1.0);
+  glVertex2i( getRect().x() + getRect().width(), getRect().y() + getRect().height() );
+  glTexCoord2f(1.0, 0.0);
+  glVertex2i( getRect().x() + getRect().width(), getRect().y() );
+  glEnd();
+
+  glDisable( GL_TEXTURE_2D );
+/*
+glRasterPos2i (getRect().x(), getRect().y());
+  glPixelZoom( (GLfloat)(getSize().width())/(GLfloat)(tex.width()), (GLfloat)(getSize().height())/(GLfloat)(tex.height()) );
+  glDrawPixels(tex.width(), tex.height(), GL_RGBA, GL_UNSIGNED_BYTE, tex.bits() ); */
+}
+
+#include "komposegltaskwidget.moc"
-- 
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