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author | Mavridis Philippe <mavridisf@gmail.com> | 2021-03-30 13:58:33 +0300 |
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committer | Mavridis Philippe <mavridisf@gmail.com> | 2021-03-30 13:58:33 +0300 |
commit | 74b22318b8df6c1e9355b73a16bb755a5178b8d6 (patch) | |
tree | 538c9e62d606c6718fa64f8c8f2ad42e4aefc1ad /src/komposegltaskwidget.cpp | |
download | kompose-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.cpp | 119 |
1 files changed, 119 insertions, 0 deletions
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" |