void BrushTool::mouseMoveEvent(MouseState mouse, QImage *layer, QImage *hud, QImage *selection, bool *useSelection)
{
if(mouse.isButtonDown(Qt::LeftButton)){
hud->fill(Qt::transparent);
QImage temp(layer->size(), layer->format());
temp.fill(Qt::transparent);
QPainter *painter = this->getPainter(&temp);
if(m_brushSize->value() == 1)
Tool::drawPerfectLine(painter, mouse.getPos(), m_last);
else
painter->drawLine(mouse.getPos(), m_last);
delete painter;
if(QVector2D(mouse.getPos() - m_last).lengthSquared() >= (m_brushSize->value() + 2) * m_brushSize->value()){
m_last = mouse.getPos();
this->drawInSelection(layer, &temp, selection, useSelection);
}
else{
this->drawInSelection(hud, &temp, selection, useSelection);
}
}
}
void Ellipse::process(Canvas &canvasMain, Canvas &canvasTemp,
const MouseState &mouse, const PaintParameters ¶m)
{
canvasTemp.clear();
if (!m_leftClicked && mouse.isLeftPressed())
{
if (mouse.isOnCanvas())
{
m_ellipseStart = mouse.getPos();
m_ellipseStart -= canvasMain.getPos();
m_startOnCanvas = true;
}
else
{
m_startOnCanvas = false;
}
}
else if (m_leftClicked && mouse.isLeftPressed() && m_startOnCanvas)
{
m_ellipseEnd = mouse.getPos();
m_ellipseEnd -= canvasMain.getPos();
drawEllipse(*canvasTemp.ptr(), m_ellipseStart, m_ellipseEnd, param);
}
else if (m_leftClicked && !mouse.isLeftPressed() && m_startOnCanvas)
{
drawEllipse(*canvasMain.ptr(), m_ellipseStart, m_ellipseEnd, param);
}
m_leftClicked = mouse.isLeftPressed();
}
void GradientTool::drawGradient(MouseState mouse, QImage *image, QColor from, QColor to)
{
QPainter painter(image);
QPoint gradVec = mouse.getPos() - mouse.getClickedAt();
float length = std::sqrt(gradVec.x() * gradVec.x() + gradVec.y() * gradVec.y());
float vecX = gradVec.x() / length;
float vecY = gradVec.y() / length;
qsrand(0);
for(int i(0); i < image->width(); ++i){
for(int j(0); j < image->height(); ++j){
QPoint point = QPoint(i, j) - mouse.getClickedAt();
float val = (float)(point.x() * vecX + point.y() * vecY) / length;
val = std::min(1.f, std::max(0.f, val));
if(m_dithering->isChecked()){
painter.setPen(QPen(m_brushes[(int) round(val * std::pow(2, m_ditheringLevel->value() -1)) * std::pow(2, 5-m_ditheringLevel->value())], 1));
}
else{
if(qrand() %128 < val *128)
painter.setPen(QPen(to));
else
painter.setPen(QPen(from));
}
painter.drawPoint(i, j);
}
}
}
void SelectionTool::mouseMoveEvent(MouseState mouse, QImage *layer, QImage *hud, QImage *selection, bool *useSelection)
{
if(m_moving){
hud->fill(Qt::transparent);
QPainter painter(hud);
painter.setOpacity(.6);
painter.drawImage(mouse.delta(), m_movingSelection);
}
else if(m_drawing){
hud->fill(Qt::transparent);
QPixmap temp(hud->size());
temp.fill(Qt::transparent);
QPainter painter(&temp);
painter.setPen(Qt::NoPen);
painter.setBrush(QBrush(GREEN_SELECTION));
this->paintSelection(mouse, &painter);
painter.end();
painter.begin(hud);
painter.setOpacity(.6);
painter.drawPixmap(0, 0, temp);
}
else{
if(*useSelection && m_selectionMode == "only" && QColor(selection->pixel(mouse.getPos())) == Qt::white)
this->setCursor(Selection);
else
this->setCorrectCursor();
}
}
void BrushTool::mouseReleaseEvent(MouseState mouse, QImage *layer, QImage *hud, QImage *selection, bool *useSelection)
{
if(mouse.button() == Qt::LeftButton){
hud->fill(Qt::transparent);
QImage temp(layer->size(), layer->format());
temp.fill(Qt::transparent);
QPainter *painter = this->getPainter(&temp);
if(m_brushSize->value() == 1)
Tool::drawPerfectLine(painter, mouse.getPos(), m_last);
else
painter->drawLine(mouse.getPos(), m_last);
delete painter;
this->drawInSelection(layer, &temp, selection, useSelection);
}
}
void SelectionTool::mousePressEvent(MouseState mouse, QImage *layer, QImage *hud, QImage *selection, bool *useSelection)
{
if(*useSelection && m_selectionMode == "only" && QColor(selection->pixel(mouse.getPos())) == Qt::white){
m_moving = true;
m_movingSelection = QImage(layer->size(), layer->format());
m_movingSelection.fill(GREEN_SELECTION);
QPainter painter(&m_movingSelection);
painter.setCompositionMode(QPainter::CompositionMode_DestinationIn);
painter.drawImage(0, 0, *selection);
}
else if(mouse.button() == Qt::LeftButton){
m_drawing = true;
m_noKeyReleased = true;
m_keysDown.remove(Qt::Key_Shift);
m_keysDown.remove(Qt::Key_Alt);
}
}
void BrushTool::mousePressEvent(MouseState mouse, QImage *layer, QImage *hud, QImage *selection, bool *useSelection)
{
if(mouse.button() == Qt::LeftButton){
m_last = mouse.getPos();
}
}