 4265057ee8
			
		
	
	
		4265057ee8
		
			
		
	
	
	
	
		
			
			* feat: make `ViewPort` getters const * feat: make tx-buffers const * feat: make `canvas_get_buffer_size` const * feat: make `canvas` methods const * feat: make `icon_animation` methods const * feat: make `scene_manager` methods const * feat: make `loader` method const * feat: make `canvas_get_font_params` const Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
		
			
				
	
	
		
			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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| 
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| #pragma once
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| 
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| #include <input/input.h>
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| #include "canvas.h"
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| 
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| #ifdef __cplusplus
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| extern "C" {
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| #endif
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| 
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| typedef struct ViewPort ViewPort;
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| 
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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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| 
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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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| 
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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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| 
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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();
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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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| #ifdef __cplusplus
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| }
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| #endif
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