flipperzero-firmware/applications/services/gui/view_port_i.h

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/**
* @file view_port_i.h
* GUI: internal ViewPort API
*/
#pragma once
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#include "gui_i.h"
#include "view_port.h"
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struct ViewPort {
Gui* gui;
bool is_enabled;
ViewPortOrientation orientation;
uint8_t width;
uint8_t height;
ViewPortDrawCallback draw_callback;
void* draw_callback_context;
ViewPortInputCallback input_callback;
void* input_callback_context;
};
/** Set GUI reference.
*
* To be used by GUI, called upon view_port tree insert
*
* @param view_port ViewPort instance
* @param gui gui instance pointer
*/
void view_port_gui_set(ViewPort* view_port, Gui* gui);
/** Process draw call. Calls draw callback.
*
* To be used by GUI, called on tree redraw.
*
* @param view_port ViewPort instance
* @param canvas canvas to draw at
*/
void view_port_draw(ViewPort* view_port, Canvas* canvas);
/** Process input. Calls input callback.
*
* To be used by GUI, called on input dispatch.
*
* @param view_port ViewPort instance
* @param event pointer to input event
*/
void view_port_input(ViewPort* view_port, InputEvent* event);