Method: Fox::Canvas::ShapeCanvas#onLeftBtnRelease

Defined in:
lib/fox16/canvas.rb

#onLeftBtnRelease(sender, sel, evt) ⇒ Object

Left button release



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# File 'lib/fox16/canvas.rb', line 543

def onLeftBtnRelease(sender, sel, evt)
  flg = @flags
  if enabled?
    ungrab
    @flags |= FLAG_UPDATE
    @flags &= ~(FLAG_PRESSED|FLAG_TRYDRAG|FLAG_LASSO|FLAG_DODRAG)

    # First chance callback
    return 1 if target && target.handle(self, MKUINT(message, SEL_LEFTBUTTONRELEASE), evt) != 0

    # Was dragging
    if (flg & FLAG_DODRAG) != 0
      handle(self, MKUINT(0, SEL_ENDDRAG), evt)
      return 1
    end

    # Must have pressed
    if (flg & FLAG_PRESSED) != 0
      # Change selection
      if @currentShape && @currentShape.enabled?
        deselectShape(@currentShape, true)
      end

      # Generate clicked callbacks
      if evt.click_count == 1
        handle(self, MKUINT(0, SEL_CLICKED), @currentShape)
      elsif evt.click_count == 2
        handle(self, MKUINT(0, SEL_DOUBLECLICKED), @currentShape)
      elseif evt.click_count == 3
        handle(self, MKUINT(0, SEL_TRIPLECLICKED), @currentShape)
      end

      # Generate command callback only when clicked on item
      if @currentShape && @currentShape.enabled?
        handle(self, MKUINT(0, SEL_COMMAND), @currentShape)
      end
      return 1
    end
    return 0
  end
end