gui_draw.h

/*
 * Copyright (c) 2019 Tilen MAJERLE
 *  
 * Permission is hereby granted, free of charge, to any person
 * obtaining a copy of this software and associated documentation
 * files (the "Software"), to deal in the Software without restriction,
 * including without limitation the rights to use, copy, modify, merge,
 * publish, distribute, sublicense, and/or sell copies of the Software, 
 * and to permit persons to whom the Software is furnished to do so, 
 * subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
 * AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * This file is part of EasyGUI library.
 *
 * Author:          Tilen Majerle <tilen@majerle.eu>
 */
#ifndef GUI_HDR_DRAW_H
#define GUI_HDR_DRAW_H

/* C++ detection */
#ifdef __cplusplus
extern "C" {
#endif

#include "gui/gui.h"

#define GUI_COLOR_BLUE                  0xFF0000FF  
#define GUI_COLOR_GREEN                 0xFF00FF00  
#define GUI_COLOR_RED                   0xFFFF0000  
#define GUI_COLOR_CYAN                  0xFF00FFFF  
#define GUI_COLOR_MAGENTA               0xFFFF00FF  
#define GUI_COLOR_YELLOW                0xFFFFFF00  
#define GUI_COLOR_LIGHTBLUE             0xFF8080FF  
#define GUI_COLOR_LIGHTGREEN            0xFF80FF80  
#define GUI_COLOR_LIGHTRED              0xFFFF8080  
#define GUI_COLOR_LIGHTCYAN             0xFF80FFFF  
#define GUI_COLOR_LIGHTMAGENTA          0xFFFF80FF  
#define GUI_COLOR_LIGHTYELLOW           0xFFFFFF80  
#define GUI_COLOR_DARKBLUE              0xFF000080  
#define GUI_COLOR_DARKGREEN             0xFF008000  
#define GUI_COLOR_DARKRED               0xFF800000  
#define GUI_COLOR_DARKCYAN              0xFF008080  
#define GUI_COLOR_DARKMAGENTA           0xFF800080  
#define GUI_COLOR_DARKYELLOW            0xFF808000  
#define GUI_COLOR_WHITE                 0xFFFFFFFF  
#define GUI_COLOR_LIGHTGRAY             0xFFD3D3D3  
#define GUI_COLOR_GRAY                  0xFF808080  
#define GUI_COLOR_DARKGRAY              0xFF404040  
#define GUI_COLOR_BLACK                 0xFF000000  
#define GUI_COLOR_BROWN                 0xFFA52A2A  
#define GUI_COLOR_ORANGE                0xFFFFA500  
#define GUI_COLOR_TRANS                 0x00000000  
#define GUI_COLOR_ALPHA_0               0x00000000  
#define GUI_COLOR_ALPHA_5               0x0C000000  
#define GUI_COLOR_ALPHA_10              0x19000000  
#define GUI_COLOR_ALPHA_15              0x26000000  
#define GUI_COLOR_ALPHA_20              0x33000000  
#define GUI_COLOR_ALPHA_25              0x3F000000  
#define GUI_COLOR_ALPHA_30              0x4C000000  
#define GUI_COLOR_ALPHA_35              0x59000000  
#define GUI_COLOR_ALPHA_40              0x66000000  
#define GUI_COLOR_ALPHA_45              0x72000000  
#define GUI_COLOR_ALPHA_50              0x7F000000  
#define GUI_COLOR_ALPHA_55              0x7C000000  
#define GUI_COLOR_ALPHA_60              0x99000000  
#define GUI_COLOR_ALPHA_65              0xA5000000  
#define GUI_COLOR_ALPHA_70              0xB2000000  
#define GUI_COLOR_ALPHA_75              0xBF000000  
#define GUI_COLOR_ALPHA_80              0xCC000000  
#define GUI_COLOR_ALPHA_85              0xD8000000  
#define GUI_COLOR_ALPHA_90              0xE5000000  
#define GUI_COLOR_ALPHA_95              0xF2000000  
#define GUI_COLOR_ALPHA_100             0xFF000000  
#define GUI_COLOR_WIN_DARKGRAY          0xFF555555  
#define GUI_COLOR_WIN_MIDDLEGRAY        0xFF848484  
#define GUI_COLOR_WIN_LIGHTGRAY         0xFFC6C6C6  
#define GUI_COLOR_WIN_BLUE              0xFF5590B7  
#define GUI_COLOR_WIN_RED               0xFFD14752  
#define GUI_COLOR_WIN_BG                GUI_COLOR_WHITE 
#define GUI_COLOR_WIN_TEXT              GUI_COLOR_BLACK 
#define GUI_COLOR_WIN_TEXT_TITLE        GUI_COLOR_BLACK 
#define GUI_COLOR_WIN_SEL_FOC           GUI_COLOR_WHITE 
#define GUI_COLOR_WIN_SEL_NOFOC         GUI_COLOR_WHITE 
#define GUI_COLOR_WIN_SEL_FOC_BG        GUI_COLOR_BLUE  
#define GUI_COLOR_WIN_SEL_NOFOC_BG      GUI_COLOR_WIN_MIDDLEGRAY    
#define GUI_COLOR_ALPHA(c, a)           (((c) & 0x00FFFFFFUL) | (a))
    
#define GUI_DRAW_CIRCLE_TL              0x01
#define GUI_DRAW_CIRCLE_TR              0x02
#define GUI_DRAW_CIRCLE_BR              0x04
#define GUI_DRAW_CIRCLE_BL              0x08
typedef struct {
    gui_dim_t x;                            
    gui_dim_t y;                            
    gui_dim_t width;                        
    gui_dim_t height;                       
    uint8_t align;                          
    gui_dim_t lineheight;                   
    uint8_t flags;                          
    gui_dim_t color1width;                  
    gui_color_t color1;                     
    gui_color_t color2;                     
    uint32_t scrolly;                       
} gui_draw_text_t;

#define GUI_FLAG_DRAW_GRAD_VER              0x01
#define GUI_FLAG_DRAW_GRAD_HOR              0x02
#define GUI_FLAG_DRAW_FILLED                0x04

typedef struct {
    gui_dim_t x;                            
    gui_dim_t y;                            
    gui_dim_t width;                        
    gui_dim_t height;                       
    uint8_t flags;
    gui_color_t color;                      
    gui_color_t color_end;                  
    gui_dim_t radius;                       
} gui_draw_rect_ex_t;

typedef enum {
    GUI_DRAW_SB_DIR_VERTICAL = 0x00,        
    GUI_DRAW_SB_DIR_HORIZONTAL = 0x00,      
} gui_draw_sb_dir_t;

typedef struct {
    gui_dim_t x;                            
    gui_dim_t y;                            
    gui_dim_t width;                        
    gui_dim_t height;                       
    gui_draw_sb_dir_t dir;                  
    uint32_t entriestotal;                  
    uint32_t entriesvisible;                
    uint32_t entriestop;                    
} gui_draw_sb_t;

typedef enum {
    GUI_DRAW_3D_State_Raised = 0x00,        
    GUI_DRAW_3D_State_Lowered = 0x01        
} gui_draw_3d_state_t;

typedef struct {
    gui_dim_t x;                           
    gui_dim_t y;                           
} gui_draw_poly_t;

void        gui_draw_text_init(gui_draw_text_t* f);
void        gui_draw_fillscreen(const gui_display_t* disp, gui_color_t color);
void        gui_draw_setpixel(const gui_display_t* disp, gui_dim_t x, gui_dim_t y, gui_color_t color);
gui_color_t gui_draw_getpixel(const gui_display_t* disp, gui_dim_t x, gui_dim_t y);
void        gui_draw_vline(const gui_display_t* disp, gui_dim_t x, gui_dim_t y, gui_dim_t length, gui_color_t color);
void        gui_draw_hline(const gui_display_t* disp, gui_dim_t x, gui_dim_t y, gui_dim_t length, gui_color_t color);
void        gui_draw_line(const gui_display_t* disp, gui_dim_t x1, gui_dim_t y1, gui_dim_t x2, gui_dim_t y2, gui_color_t color);
void        gui_draw_rectangle(const gui_display_t* disp, gui_dim_t x, gui_dim_t y, gui_dim_t width, gui_dim_t height, gui_color_t color);
void        gui_draw_rectangle_ex(const gui_display_t* disp, gui_draw_rect_ex_t* rect);
void        gui_draw_filledrectangle(const gui_display_t* disp, gui_dim_t x, gui_dim_t y, gui_dim_t width, gui_dim_t height, gui_color_t color);
void        gui_draw_roundedrectangle(const gui_display_t* disp, gui_dim_t x, gui_dim_t y, gui_dim_t width, gui_dim_t height, gui_dim_t r, gui_color_t color);
void        gui_draw_filledroundedrectangle(const gui_display_t* disp, gui_dim_t x, gui_dim_t y, gui_dim_t width, gui_dim_t height, gui_dim_t r, gui_color_t color);
void        gui_draw_circle(const gui_display_t* disp, gui_dim_t x0, gui_dim_t y0, gui_dim_t r, gui_color_t color);
void        gui_draw_filledcircle(const gui_display_t* disp, gui_dim_t x0, gui_dim_t y0, gui_dim_t r, gui_color_t color);
void        gui_draw_circlecorner(const gui_display_t* disp, gui_dim_t x0, gui_dim_t y0, gui_dim_t r, uint8_t c, gui_color_t color);
void        gui_draw_filledcirclecorner(const gui_display_t* disp, gui_dim_t x0, gui_dim_t y0, gui_dim_t r, uint8_t c, uint32_t color);
void        gui_draw_triangle(const gui_display_t* disp, gui_dim_t x1, gui_dim_t y1,  gui_dim_t x2, gui_dim_t y2, gui_dim_t x3, gui_dim_t y3, gui_color_t color);
void        gui_draw_filledtriangle(const gui_display_t* disp, gui_dim_t x1, gui_dim_t y1, gui_dim_t x2, gui_dim_t y2, gui_dim_t x3, gui_dim_t y3, gui_color_t color);
void        gui_draw_image(gui_display_t* disp, gui_dim_t x, gui_dim_t y, const gui_image_desc_t* img);
void        gui_draw_writetext(const gui_display_t* disp, const gui_font_t* font, const gui_char* str, gui_draw_text_t* draw);
void        gui_draw_rectangle3d(const gui_display_t* disp, gui_dim_t x, gui_dim_t y, gui_dim_t width, gui_dim_t height, gui_draw_3d_state_t state);
void        gui_draw_poly(const gui_display_t* disp, const gui_draw_poly_t* points, size_t len, gui_color_t color);
void        gui_draw_scrollbar_init(gui_draw_sb_t* sb);
void        gui_draw_scrollbar(const gui_display_t* disp, gui_draw_sb_t* sb);

/* C++ detection */
#ifdef __cplusplus
}
#endif

#endif /* GUI_HDR_DRAW_H */