void KisCoordinatesConverterTest::testTransformations()
{
KisImageSP image;
KisCoordinatesConverter converter;
initImage(&image, &converter);
converter.setImage(image);
converter.setDocumentOffset(QPoint(20,30));
converter.setCanvasWidgetSize(QSize(500,500));
QRectF testRect(100,100,100,100);
QTransform imageToWidget;
QTransform documentToWidget;
QTransform flakeToWidget;
QTransform viewportToWidget;
converter.setZoom(1.);
imageToWidget = converter.imageToWidgetTransform();
documentToWidget = converter.documentToWidgetTransform();
flakeToWidget = converter.flakeToWidgetTransform();
viewportToWidget = converter.viewportToWidgetTransform();
CHECK_TRANSFORM(imageToWidget, testRect, QRectF(80,70,100,100));
CHECK_TRANSFORM(documentToWidget, testRect, QRectF(9980,9970,10000,10000));
CHECK_TRANSFORM(flakeToWidget, testRect, QRectF(80,70,100,100));
CHECK_TRANSFORM(viewportToWidget, testRect, QRectF(100,100,100,100));
converter.setZoom(0.5);
imageToWidget = converter.imageToWidgetTransform();
documentToWidget = converter.documentToWidgetTransform();
flakeToWidget = converter.flakeToWidgetTransform();
viewportToWidget = converter.viewportToWidgetTransform();
CHECK_TRANSFORM(imageToWidget, testRect, QRectF(30,20,50,50));
CHECK_TRANSFORM(documentToWidget, testRect, QRectF(4980,4970,5000,5000));
CHECK_TRANSFORM(flakeToWidget, testRect, QRectF(80,70,100,100));
CHECK_TRANSFORM(viewportToWidget, testRect, QRectF(100,100,100,100));
}
void KisOpenGLCanvas2::paintToolOutline(const QPainterPath &path)
{
d->cursorShader->bind();
// setup the mvp transformation
KisCoordinatesConverter *converter = coordinatesConverter();
QMatrix4x4 projectionMatrix;
projectionMatrix.setToIdentity();
projectionMatrix.ortho(0, width(), height(), 0, NEAR_VAL, FAR_VAL);
// Set view/projection matrices
QMatrix4x4 modelMatrix(converter->flakeToWidgetTransform());
modelMatrix.optimize();
modelMatrix = projectionMatrix * modelMatrix;
d->cursorShader->setUniformValue(d->cursorShader->location(Uniform::ModelViewProjection), modelMatrix);
glHint(GL_LINE_SMOOTH_HINT, GL_NICEST);
// XXX: glLogicOp not in ES 2.0 -- it would be better to use another method.
// It is defined in 3.1 core profile onward.
// Actually, https://www.opengl.org/sdk/docs/man/html/glLogicOp.xhtml says it's in 2.0 onwards,
// only not in ES, but we don't care about ES, so we could use the function directly.
glEnable(GL_COLOR_LOGIC_OP);
if (ptr_glLogicOp) {
ptr_glLogicOp(GL_XOR);
}
// Paint the tool outline
if (KisOpenGL::hasOpenGL3()) {
d->outlineVAO.bind();
d->lineBuffer.bind();
}
// Convert every disjointed subpath to a polygon and draw that polygon
QList<QPolygonF> subPathPolygons = path.toSubpathPolygons();
for (int i = 0; i < subPathPolygons.size(); i++) {
const QPolygonF& polygon = subPathPolygons.at(i);
QVector<QVector3D> vertices;
vertices.resize(polygon.count());
for (int j = 0; j < polygon.count(); j++) {
QPointF p = polygon.at(j);
vertices[j].setX(p.x());
vertices[j].setY(p.y());
}
if (KisOpenGL::hasOpenGL3()) {
d->lineBuffer.allocate(vertices.constData(), 3 * vertices.size() * sizeof(float));
}
else {
d->cursorShader->enableAttributeArray(PROGRAM_VERTEX_ATTRIBUTE);
d->cursorShader->setAttributeArray(PROGRAM_VERTEX_ATTRIBUTE, vertices.constData());
}
glDrawArrays(GL_LINE_STRIP, 0, vertices.size());
}
if (KisOpenGL::hasOpenGL3()) {
d->lineBuffer.release();
d->outlineVAO.release();
}
glDisable(GL_COLOR_LOGIC_OP);
d->cursorShader->release();
}