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https://github.com/DarkFlippers/unleashed-firmware.git
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acc39a4bc0
* Api Symbols: replace asserts with checks * Api Symbols: replace asserts with checks part 2 * Update no args function signatures with void, to help compiler to track incorrect usage * More unavoidable void * Update PVS config and code to make it happy * Format sources * nfc: fix checks * dead code cleanup & include fixes Co-authored-by: gornekich <n.gorbadey@gmail.com> Co-authored-by: hedger <hedger@users.noreply.github.com> Co-authored-by: hedger <hedger@nanode.su>
111 lines
2.9 KiB
C
111 lines
2.9 KiB
C
/**
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* @file view_port.h
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* GUI: ViewPort API
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*/
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#pragma once
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#include <input/input.h>
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#include "canvas.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct ViewPort ViewPort;
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typedef enum {
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ViewPortOrientationHorizontal,
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ViewPortOrientationHorizontalFlip,
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ViewPortOrientationVertical,
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ViewPortOrientationVerticalFlip,
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ViewPortOrientationMAX, /**< Special value, don't use it */
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} ViewPortOrientation;
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/** ViewPort Draw callback
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* @warning called from GUI thread
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*/
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typedef void (*ViewPortDrawCallback)(Canvas* canvas, void* context);
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/** ViewPort Input callback
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* @warning called from GUI thread
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*/
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typedef void (*ViewPortInputCallback)(InputEvent* event, void* context);
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/** ViewPort allocator
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*
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* always returns view_port or stops system if not enough memory.
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*
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* @return ViewPort instance
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*/
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ViewPort* view_port_alloc(void);
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/** ViewPort deallocator
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*
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* Ensure that view_port was unregistered in GUI system before use.
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*
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* @param view_port ViewPort instance
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*/
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void view_port_free(ViewPort* view_port);
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/** Set view_port width.
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*
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* Will be used to limit canvas drawing area and autolayout feature.
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*
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* @param view_port ViewPort instance
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* @param width wanted width, 0 - auto.
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*/
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void view_port_set_width(ViewPort* view_port, uint8_t width);
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uint8_t view_port_get_width(const ViewPort* view_port);
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/** Set view_port height.
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*
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* Will be used to limit canvas drawing area and autolayout feature.
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*
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* @param view_port ViewPort instance
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* @param height wanted height, 0 - auto.
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*/
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void view_port_set_height(ViewPort* view_port, uint8_t height);
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uint8_t view_port_get_height(const ViewPort* view_port);
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/** Enable or disable view_port rendering.
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*
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* @param view_port ViewPort instance
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* @param enabled Indicates if enabled
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* @warning automatically dispatches update event
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*/
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void view_port_enabled_set(ViewPort* view_port, bool enabled);
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bool view_port_is_enabled(const ViewPort* view_port);
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/** ViewPort event callbacks
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*
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* @param view_port ViewPort instance
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* @param callback appropriate callback function
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* @param context context to pass to callback
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*/
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void view_port_draw_callback_set(ViewPort* view_port, ViewPortDrawCallback callback, void* context);
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void view_port_input_callback_set(
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ViewPort* view_port,
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ViewPortInputCallback callback,
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void* context);
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/** Emit update signal to GUI system.
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*
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* Rendering will happen later after GUI system process signal.
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*
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* @param view_port ViewPort instance
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*/
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void view_port_update(ViewPort* view_port);
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/** Set ViewPort orientation.
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*
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* @param view_port ViewPort instance
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* @param orientation display orientation, horizontal or vertical.
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*/
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void view_port_set_orientation(ViewPort* view_port, ViewPortOrientation orientation);
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ViewPortOrientation view_port_get_orientation(const ViewPort* view_port);
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#ifdef __cplusplus
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}
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#endif
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