void KisCoordinatesConverterTest::testConversion()
{
KisImageSP image;
KisCoordinatesConverter converter;
initImage(&image, &converter);
converter.setImage(image);
converter.setDocumentOffset(QPoint(20,20));
converter.setCanvasWidgetSize(QSize(500,500));
converter.setZoom(1.);
QRectF testRect(100,100,100,100);
QCOMPARE(converter.imageToViewport(testRect), QRectF(80,80,100,100));
QCOMPARE(converter.viewportToImage(testRect), QRectF(120,120,100,100));
QCOMPARE(converter.widgetToViewport(testRect), QRectF(100,100,100,100));
QCOMPARE(converter.viewportToWidget(testRect), QRectF(100,100,100,100));
QCOMPARE(converter.widgetToDocument(testRect), QRectF(1.20,1.20,1,1));
QCOMPARE(converter.documentToWidget(testRect), QRectF(9980,9980,10000,10000));
QCOMPARE(converter.imageToDocument(testRect), QRectF(1,1,1,1));
QCOMPARE(converter.documentToImage(testRect), QRectF(10000,10000,10000,10000));
converter.setZoom(0.5);
QCOMPARE(converter.imageToViewport(testRect), QRectF(30,30,50,50));
QCOMPARE(converter.viewportToImage(testRect), QRectF(240,240,200,200));
QCOMPARE(converter.widgetToViewport(testRect), QRectF(100,100,100,100));
QCOMPARE(converter.viewportToWidget(testRect), QRectF(100,100,100,100));
QCOMPARE(converter.widgetToDocument(testRect), QRectF(2.4,2.4,2,2));
QCOMPARE(converter.documentToWidget(testRect), QRectF(4980,4980,5000,5000));
QCOMPARE(converter.imageToDocument(testRect), QRectF(1,1,1,1));
QCOMPARE(converter.documentToImage(testRect), QRectF(10000,10000,10000,10000));
}
void KisQPainterCanvas::paintEvent(QPaintEvent * ev)
{
KisImageWSP image = canvas()->image();
if (image == 0) return;
setAutoFillBackground(false);
if (m_buffer.size() != size()) {
m_buffer = QImage(size(), QImage::Format_ARGB32_Premultiplied);
}
QPainter gc(&m_buffer);
// we double buffer, so we paint on an image first, then from the image onto the canvas,
// so copy the clip region since otherwise we're filling the whole buffer every time with
// the background color _and_ the transparent squares.
gc.setClipRegion(ev->region());
KisCoordinatesConverter *converter = coordinatesConverter();
QTransform imageTransform = converter->viewportToWidgetTransform();
gc.save();
gc.setCompositionMode(QPainter::CompositionMode_Source);
gc.fillRect(QRect(QPoint(0, 0), size()), borderColor());
QTransform checkersTransform;
QPointF brushOrigin;
QPolygonF polygon;
converter->getQPainterCheckersInfo(&checkersTransform, &brushOrigin, &polygon);
gc.setPen(Qt::NoPen);
gc.setBrush(m_d->checkBrush);
gc.setBrushOrigin(brushOrigin);
gc.setTransform(checkersTransform);
gc.drawPolygon(polygon);
gc.setTransform(imageTransform);
gc.setRenderHint(QPainter::SmoothPixmapTransform, true);
QRectF viewportRect = converter->widgetToViewport(ev->rect());
gc.setCompositionMode(QPainter::CompositionMode_SourceOver);
gc.drawImage(viewportRect, m_d->prescaledProjection->prescaledQImage(),
viewportRect);
gc.restore();
#ifdef DEBUG_REPAINT
QColor color = QColor(random() % 255, random() % 255, random() % 255, 150);
gc.fillRect(ev->rect(), color);
#endif
drawDecorations(gc, ev->rect());
gc.end();
QPainter painter(this);
painter.drawImage(ev->rect(), m_buffer, ev->rect());
}
void KisOpenGLCanvas2::drawCheckers()
{
if (!d->checkerShader) {
return;
}
KisCoordinatesConverter *converter = coordinatesConverter();
QTransform textureTransform;
QTransform modelTransform;
QRectF textureRect;
QRectF modelRect;
QRectF viewportRect = !d->wrapAroundMode ?
converter->imageRectInViewportPixels() :
converter->widgetToViewport(this->rect());
converter->getOpenGLCheckersInfo(viewportRect,
&textureTransform, &modelTransform, &textureRect, &modelRect, d->scrollCheckers);
textureTransform *= QTransform::fromScale(d->checkSizeScale / KisOpenGLImageTextures::BACKGROUND_TEXTURE_SIZE,
d->checkSizeScale / KisOpenGLImageTextures::BACKGROUND_TEXTURE_SIZE);
if (!d->checkerShader->bind()) {
qWarning() << "Could not bind checker shader";
return;
}
QMatrix4x4 projectionMatrix;
projectionMatrix.setToIdentity();
projectionMatrix.ortho(0, width(), height(), 0, NEAR_VAL, FAR_VAL);
// Set view/projection matrices
QMatrix4x4 modelMatrix(modelTransform);
modelMatrix.optimize();
modelMatrix = projectionMatrix * modelMatrix;
d->checkerShader->setUniformValue(d->checkerShader->location(Uniform::ModelViewProjection), modelMatrix);
QMatrix4x4 textureMatrix(textureTransform);
d->checkerShader->setUniformValue(d->checkerShader->location(Uniform::TextureMatrix), textureMatrix);
//Setup the geometry for rendering
if (KisOpenGL::hasOpenGL3()) {
rectToVertices(d->vertices, modelRect);
d->quadBuffers[0].bind();
d->quadBuffers[0].write(0, d->vertices, 3 * 6 * sizeof(float));
rectToTexCoords(d->texCoords, textureRect);
d->quadBuffers[1].bind();
d->quadBuffers[1].write(0, d->texCoords, 2 * 6 * sizeof(float));
}
else {
rectToVertices(d->vertices, modelRect);
d->checkerShader->enableAttributeArray(PROGRAM_VERTEX_ATTRIBUTE);
d->checkerShader->setAttributeArray(PROGRAM_VERTEX_ATTRIBUTE, d->vertices);
rectToTexCoords(d->texCoords, textureRect);
d->checkerShader->enableAttributeArray(PROGRAM_TEXCOORD_ATTRIBUTE);
d->checkerShader->setAttributeArray(PROGRAM_TEXCOORD_ATTRIBUTE, d->texCoords);
}
// render checkers
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, d->openGLImageTextures->checkerTexture());
glDrawArrays(GL_TRIANGLES, 0, 6);
glBindTexture(GL_TEXTURE_2D, 0);
d->checkerShader->release();
glBindBuffer(GL_ARRAY_BUFFER, 0);
}