1.2.1. canvas

1.2.1.1. class Canvas

Canvas.__init__(document)

Create canvas and show it.

document: Parent document object.

Canvas.allocate_cb(widget, event)

Warning

no doctring or additional documentation, too bad.

Canvas.layout_reverse()

Reverse the layout children order, it is a way to keep the hud items over the sandbox despite the lack of a z-index system in the layout and fixed gtk widgets.

Canvas.enter_cb(widget, event)

To do when the user moves the mouse into the eventbox.

widget: Root widget.

event: Emited event object.

Canvas.leave_cb(widget, event)

To do when the user moves the mouse out of the eventbox.

widget: Root widget.

event: Emited event object.

Canvas.key_cb(widget, event)

To do when the user press a key.

widget: Root widget.

event: Emited event object.

Canvas.button_cb(widget, event)

To do when the user click a mouse button over the eventbox.

widget: Root widget.

event: Emited event object.

Canvas.motion_cb(widget, event)

To do when the user move the mouse over the eventbox.

widget: Root widget.

event: Emited event object.

Canvas.release_cb(widget, event)

To do when the user release a mouse button.

widget: Root widget.

event: Emited event object.

Canvas.handscroll(x, y)

Perform a freehand scroll in relation to the click root position.

x: The motion coordinate in x axis.

y: The motion coordinate in y axis.

Canvas.zoom_cb(widget, event)

To do when the user uses the mouse scroll over the eventbox.

widget: Root widget.

event: Emited event object.

Canvas.redraw(x, y, width, height, propagate=True, timing=False)

Redraw an outdated area in the displayed image.

x: The x coordinate of upper-left corner of rectangle.

y: The y coordinate of upper-left corner of rectangle.

width: The width of rectangle.

height: The height of rectangle.

propagate: Boolean to redraw or not the related sandbox area.

timing: Boolean to use or not the redraw timing system.

Canvas.redraw_all(propagate=True)

Redraw the displayed image completely.

propagate: Boolean to redraw or not the related sandbox area.

Canvas.redraw_step(x, y, width, height, recursion=True)

Redraw an outdated area in the displayed image step by step.

x: The x coordinate of upper-left corner of rectangle.

y: The y coordinate of upper-left corner of rectangle.

width: The width of rectangle.

height: The height of rectangle.

Canvas.redraw_all_step(recursion=True)

Redraw the displayed image completely step by step.