Exemplo n.º 1
0
void PointEditor::mouseDrag (const MouseEvent& e)
{
    if (selectedPoint > -1 && e.getDistanceFromDragStart() > 0)
    {
        int x, y;
        
        x = e.x;
        y = e.y;
        
        // y constraint
        
        if (y <= 0)
            y = 0;
        else if (y >= getBounds().getHeight())
            y = getBounds().getHeight();
        
        // x constraint
        
        if (x <= 0)
            x = 0;
        else if (x >= getBounds().getWidth())
            x = getBounds().getWidth();
        
        if (points.size() > 2)
        {
            int prevX, nextX;
            
            if (selectedPoint == 0)
                prevX = -1;
            else
                prevX = points.at(selectedPoint - 1).x;
            
            if (selectedPoint == points.size() - 1)
                nextX = getBounds().getWidth() + 1;
            else
                nextX = points.at(selectedPoint + 1).x;
            
            if (e.x <= prevX)
                x = prevX + 1;
            else if (e.x >= nextX)
                x = nextX - 1;
        }
        
        sendChangeMessage();
        
        points[selectedPoint].x = x;
        points[selectedPoint].y = y;
        
        repaint();
    }
}
Exemplo n.º 2
0
void ProgramListBox::mouseDrag(const MouseEvent &event) {
    if ( ! hasContent )
        return;
    if ( dragCandidate != -1 )
        return;
    if ( event.getDistanceFromDragStart() < 7 )
        return;
    
    if (DragAndDropContainer* const dragContainer = DragAndDropContainer::findParentDragContainerFor(this)) {
        Image snapshot (Image::ARGB, cellWidth, cellHeight, true);
        int position = programPosition(event.getMouseDownX(), event.getMouseDownY());
        Graphics g(snapshot);
        g.setColour(DXLookNFeel::lightBackground);
        g.fillRect(0,0,cellWidth, cellHeight);
        g.setColour(Colours::white);
        g.drawFittedText(programNames[position], 0, 0, cellWidth, cellHeight, Justification::centred, true);
        void *src = cartContent.getRawVoice() + (position*128);
        var description = var(src, 128);
        dragContainer->startDragging(description, this, snapshot, false);
    }
}
Exemplo n.º 3
0
    void mouseDrag (const MouseEvent& e)
    {
        if (isEnabled()
             && ! (isDragging || e.mouseWasClicked()
                    || e.getDistanceFromDragStart() < 5
                    || e.mods.isPopupMenu()))
        {
            isDragging = true;

            Rectangle<int> pos;
            TreeViewItem* const item = findItemAt (e.getMouseDownY(), pos);

            if (item != 0 && e.getMouseDownX() >= pos.getX())
            {
                const String dragDescription (item->getDragSourceDescription());

                if (dragDescription.isNotEmpty())
                {
                    DragAndDropContainer* const dragContainer
                        = DragAndDropContainer::findParentDragContainerFor (this);

                    if (dragContainer != 0)
                    {
                        pos.setSize (pos.getWidth(), item->itemHeight);
                        Image dragImage (Component::createComponentSnapshot (pos, true));
                        dragImage.multiplyAllAlphas (0.6f);

                        Point<int> imageOffset (pos.getPosition() - e.getPosition());
                        dragContainer->startDragging (dragDescription, &owner, dragImage, true, &imageOffset);
                    }
                    else
                    {
                        // to be able to do a drag-and-drop operation, the treeview needs to
                        // be inside a component which is also a DragAndDropContainer.
                        jassertfalse;
                    }
                }
            }
        }
    }