Public Member Functions | |
| void | layout () |
| void | draw () |
| void | end () |
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Fltk calls this virtual function to draw the widget, after setting up the graphics (current window, xy translation, etc) so that any drawing functions will go into this widget. User code should not call this! You probably want to call redraw(). The default version calls draw_box() and draw_label(), thus drawing the box() to fill the widget and putting the label() and image() inside it to fill it, unless the align() flags are set to put it outside. Information on how to write your own version is here. Reimplemented from fltk::DockHolder. |
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Perform initialization and arrangement of new widgets after addition to the parent. Appropriate version of this method called must be ensured since it is not virtual. Reimplemented from fltk::Group. |
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Virtual function to respond to layout_damage(), it should calculate the correct size of this widget and all it's children. This function is called by fltk or by the layout() method in other widgets. User programs should not call it. A widget is allowed to alter it's own size in a layout() method, to indicate a size that the data will fit in. A parent widget is then expected to rearrange itself to accomodate the new size. This may mean it will move the widget and thus layout() will be called again. You can look at layout_damage() to find out why this is being called. The base class redraws the widget and sets layout_damage() to zero. Reimplemented from fltk::DockHolder. |