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port Flag class to use QOpenGLWidget
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@wwmayer
wwmayer committed Mar 21, 2017
1 parent f587ec5 commit 1abc9d3
Showing 1 changed file with 30 additions and 161 deletions.
191 changes: 30 additions & 161 deletions src/Gui/Flag.cpp
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Expand Up @@ -34,105 +34,9 @@

using namespace Gui;

#if 0 // Test functions with transparency

#if 1
QDialog* dlg = Gui::getMainWindow()->findChild<QDialog*>();
QImage image;
if (dlg) {
QPixmap p = QPixmap::grabWidget(dlg);
image = p.toImage();
}
else {
QImage img(128,128, QImage::Format_ARGB32);
img.fill(qRgba(255, 255, 255, 127));
QPainter painter;
painter.begin(&img);
painter.setPen(Qt::black);
painter.drawText(25, 50, QLatin1String("Hello, World!"));
painter.end();
image = img;
}
#else
QPixmap pm (128,128);
QBitmap mask (128,128);
mask.fill(Qt::color0);

QPainter painter(&mask);
painter.drawText(QPoint(0, 0), QLatin1String("Hello, World!"));
pm.setMask(mask);

QImage img = pm.toImage();
img.load(QLatin1String("C:/Temp/tux.png"),"PNG");
#endif

#include "MainWindow.h"
void drawImage(QGLWidget* w,double x1, double y1, double x2, double y2, QImage pic)
{
//pic.save(QLatin1String("C:/Temp/texture.png"),"PNG");
#if 0
glPushAttrib(GL_ALL_ATTRIB_BITS);
glEnable(GL_BLEND);
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glColor4d(0.0,0.0,1.0,0.2f);
glBegin(GL_QUADS);
glTexCoord2d(0,0); glVertex2f(x1,y1);
glTexCoord2d(1,0); glVertex2f(x2,y1);
glTexCoord2d(1,1); glVertex2f(x2,y2);
glTexCoord2d(0,1); glVertex2f(x1,y2);
glEnd();
glPopAttrib();
#elif 0
pic = QGLWidget::convertToGLFormat(pic);
int texid = w->bindTexture(pic);
glColor3f(1,1,1);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glDisable(GL_LIGHTING);
glBegin(GL_QUADS);
glTexCoord2d(0,0); glVertex2f(x1,y1);
glTexCoord2d(1,0); glVertex2f(x2,y1);
glTexCoord2d(1,1); glVertex2f(x2,y2);
glTexCoord2d(0,1); glVertex2f(x1,y2);
glEnd();
// glEnable(GL_LIGHTING);
w->deleteTexture(texid);
#elif 0
glPushAttrib(GL_ALL_ATTRIB_BITS);
glEnable(GL_BLEND);
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glColor4d(0.0,0.0,1.0,0.2f);
int texid = w->bindTexture(pic);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glDisable(GL_LIGHTING);
glBegin(GL_QUADS);
glTexCoord2d(0,0); glVertex2f(x1,y1);
glTexCoord2d(1,0); glVertex2f(x2,y1);
glTexCoord2d(1,1); glVertex2f(x2,y2);
glTexCoord2d(0,1); glVertex2f(x1,y2);
glEnd();
// glEnable(GL_LIGHTING);
w->deleteTexture(texid);
glPopAttrib();
#elif 1
glPushAttrib(GL_ALL_ATTRIB_BITS);
glEnable(GL_BLEND);
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glColor4d(0.0,0.0,1.0,0.2f);
pic = QGLWidget::convertToGLFormat(pic);
glRasterPos2d(x1,y1);
glDrawPixels(pic.width(),pic.height(),GL_RGBA,GL_UNSIGNED_BYTE,pic.bits());
glPopAttrib();
#endif
}

#endif

/* TRANSLATOR Gui::Flag */

#if 1

// TODO: Rename to Annotation
// Support transparency
// Embed complete widgets
Expand All @@ -141,62 +45,60 @@ Flag::Flag(QWidget* parent)
: QtGLWidget(parent), coord(0.0f, 0.0f, 0.0f)
{
this->setFixedHeight(20);
#if defined(HAVE_QT5_OPENGL)
setAutoFillBackground(true);
#endif
}

Flag::~Flag()
{
}

void Flag::initializeGL()
{
const QPalette& p = this->palette();
#if !defined(HAVE_QT5_OPENGL)
qglClearColor(/*Qt::white*/p.color(QPalette::Window));
qglClearColor(p.color(QPalette::Window));
#else
QColor c(p.color(QPalette::Window));
QOpenGLFunctions *f = QOpenGLContext::currentContext()->functions();
f->glClearColor(c.redF(), c.greenF(), c.blueF(), c.alphaF());
glClearColor(c.redF(), c.greenF(), c.blueF(), c.alphaF());
#endif
}

void Flag::paintGL()
{
#if !defined(HAVE_QT5_OPENGL)
const QPalette& p = this->palette();
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
#if !defined(HAVE_QT5_OPENGL)
qglColor(/*Qt::black*/p.color(QPalette::Text));
qglColor(p.color(QPalette::Text));
renderText(10,15,this->text);
#else
QColor c(p.color(QPalette::Text));
QOpenGLFunctions *f = QOpenGLContext::currentContext()->functions();
f->glBlendColor(c.redF(), c.greenF(), c.blueF(), c.alphaF());
//FIXME: HAVE_QT5_OPENGL
QOpenGLWidget::paintGL();
#endif
}

void Flag::resizeGL(int width, int height)
void Flag::paintEvent(QPaintEvent* e)
{
Q_UNUSED(width);
Q_UNUSED(height);
return;
//int side = qMin(width, height);
//glViewport((width - side) / 2, (height - side) / 2, side, side);

//glMatrixMode(GL_PROJECTION);
//glLoadIdentity();
//glFrustum(-1.0, +1.0, -1.0, 1.0, 5.0, 60.0);
//glMatrixMode(GL_MODELVIEW);
//glLoadIdentity();
//glTranslated(0.0, 0.0, -40.0);
}

#if !defined(HAVE_QT5_OPENGL)
QtGLWidget::paintEvent(e);
#else
const QPalette& p = this->palette();
QColor c(p.color(QPalette::Text));

Flag::Flag(QWidget* parent)
: QWidget(parent), coord(0.0f, 0.0f, 0.0f)
{
this->setFixedHeight(20);
}
QPainter painter;
painter.begin(this);
painter.setRenderHint(QPainter::Antialiasing);
painter.fillRect(e->rect(), p.color(QPalette::Window));
painter.setPen(c);
painter.drawText(10, 15, this->text);
painter.end();
#endif
}

Flag::~Flag()
void Flag::resizeGL(int width, int height)
{
Q_UNUSED(width);
Q_UNUSED(height);
}

void Flag::setOrigin(const SbVec3f& v)
Expand Down Expand Up @@ -239,42 +141,9 @@ void Flag::setText(const QString& t)
this->text = t;
}

void Flag::resizeEvent(QResizeEvent * )
{
#if 0
image = QImage(this->size(), QImage::Format_ARGB32);

QPainter painter;
painter.begin(&image);
painter.fillRect(image.rect(), Qt::white);
painter.setPen(Qt::black);
painter.drawText(10, 15, this->text);
painter.end();
#endif
}

void Flag::paintEvent(QPaintEvent* e)
void Flag::resizeEvent(QResizeEvent* e)
{
#if 1
QtGLWidget::paintEvent(e);
#else
#if 1
QPainter painter;
painter.begin(this);
painter.setRenderHint(QPainter::Antialiasing);
painter.drawImage((width() - image.width())/2, 0, image);
painter.end();
#else
// draw the overlaid text using QPainter
QPainter p(this);
p.fillRect(this->rect(), Qt::white);
p.setPen(Qt::black);
p.setBrush(Qt::NoBrush);
QFontMetrics fm(p.font());
p.drawText(10, 15, this->text);
#endif
#endif
QtGLWidget::resizeEvent(e);
}

void Flag::mouseMoveEvent(QMouseEvent *e)
Expand Down

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