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authorMavridis Philippe <mavridisf@gmail.com>2021-03-30 13:58:33 +0300
committerMavridis Philippe <mavridisf@gmail.com>2021-03-30 13:58:33 +0300
commit74b22318b8df6c1e9355b73a16bb755a5178b8d6 (patch)
tree538c9e62d606c6718fa64f8c8f2ad42e4aefc1ad /src/komposegltaskwidget.cpp
downloadkompose-74b22318b8df6c1e9355b73a16bb755a5178b8d6.tar.gz
kompose-74b22318b8df6c1e9355b73a16bb755a5178b8d6.zip
Initial commit (KDE3 version)
Signed-off-by: Mavridis Philippe <mavridisf@gmail.com>
Diffstat (limited to 'src/komposegltaskwidget.cpp')
-rw-r--r--src/komposegltaskwidget.cpp119
1 files changed, 119 insertions, 0 deletions
diff --git a/src/komposegltaskwidget.cpp b/src/komposegltaskwidget.cpp
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+//
+// 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"