graphics.h

   1 #ifndef GRAPHICS_H
   2 #define GRAPHICS_H
   3
   4 #include "SDL.h"
   5 #include "SDL_image.h"
   6 #include "SDL_ttf.h"
   7 #include "SDL_rotozoom.h"
   8
   9 /* GUI_PATH must end with a directory separator. */
  10 #define GUI_PATH "gui/"
  11 #define GUI_PATH_LEN 4
  12
  13 #define ICON_FILE GUI_PATH "icon.bmp"
  14 #define LOG_FILE "xuni.log"
  15
  16 #define MONOSPACE_FONT GUI_PATH "FreeMono.ttf"
  17 #define SANS_SERIF_FONT GUI_PATH "FreeSans.ttf"
  18
  19 #define VERSION "xuni version 1.0.0"
  20 #define TITLE_PREFIX "xuni: "
  21
  22 /*#undef MIN
  23 #undef MAX
  24 #define MIN(x,y) ((x) < (y) ? (x) : (y))
  25 #define MAX(x,y) ((x) > (y) ? (x) : (y))*/
  26
  27 struct strings_t {
  28     char **data;
  29     size_t *len;
  30     size_t num;
  31 };
  32
  33 struct font_t {
  34     TTF_Font *mono, *sans;
  35     int point;
  36 };
  37
  38 struct resize_image_t {
  39     SDL_Surface *original, *image;
  40 };
  41
  42 enum widget_type_t {
  43     WIDGET_BUTTON,
  44     WIDGET_CHECKBOX,
  45     WIDGET_TEXTBOX,
  46     WIDGET_LISTBOX
  47 };
  48
  49 struct button_t {
  50     SDL_Surface *text;
  51 };
  52
  53 struct checkbox_t {
  54     SDL_Surface *text;
  55     int checked;
  56     int bw;
  57 };
  58
  59 struct textbox_t {
  60     char *data;
  61     size_t len;
  62     SDL_Surface *text;
  63     int ra;
  64 };
  65
  66 struct listbox_t {
  67     struct strings_t data;
  68 };
  69
  70 struct widget_t {
  71     enum widget_type_t type;
  72
  73     union {
  74         struct button_t *button;
  75         struct checkbox_t *checkbox;
  76         struct textbox_t *textbox;
  77         void *all;
  78     } p;
  79
  80     SDL_Rect pos;
  81 };
  82
  83 enum boxtype_t {
  84     BOX_ERROR = -1,
  85     BOX_OUT,
  86     BOX_OUT_HOVER,
  87     BOX_OUT_ACTIVE,
  88     BOX_IN,
  89     BOX_IN_HOVER,
  90     BOX_IN_ACTIVE,
  91     BOXTYPES
  92 };
  93
  94 struct theme_t {
  95     int boxw, boxh;
  96
  97     struct {
  98         struct resize_image_t corners;
  99     } box[BOXTYPES];
 100
 101     struct resize_image_t check;
 102 };
 103
 104 struct widget_p_t {
 105     struct widget_t *widget;
 106     size_t id;
 107 };
 108
 109 struct widget_sel_t {
 110     /*Uint8 button;
 111     int xp, yp;*/
 112     int wasin, clickin;
 113     struct widget_p_t p;
 114 };
 115
 116 struct smode_t {
 117     SDL_Surface *screen;
 118     int width, height;
 119     int depth;
 120     int fullscreen;
 121     int focus;
 122     SDL_GrabMode restrictfocus;
 123
 124     struct widget_sel_t sel;
 125     struct widget_p_t active;
 126 };
 127
 128 void default_smode(struct smode_t *smode);
 129 void clear_smode(struct smode_t *smode);
 130 void clear_sel(struct widget_sel_t *sel);
 131 SDL_Surface *init_sdl(struct smode_t *smode);
 132 SDL_GrabMode set_focus(SDL_GrabMode mode);
 133 void quit_sdl(void);
 134 void free_resize_image(struct resize_image_t *image);
 135 void free_fonts(struct font_t *font);
 136 void free_theme(struct theme_t *theme);
 137 void load_icon(void);
 138 void load_fonts(struct font_t *font);
 139 void load_theme(struct theme_t *theme, const char *path);
 140 SDL_Surface *load_image(const char *filename);
 141 void load_resize_image(struct resize_image_t *image, const char *filename);
 142 SDL_Surface *resize_screen(struct smode_t *smode, SDL_ResizeEvent *resize);
 143 int toggle_fullscreen(SDL_Surface **screen, struct smode_t *smode);
 144 void reload_fonts(struct font_t *font, struct smode_t *smode);
 145 void resize_theme(struct theme_t *theme, struct smode_t *smode);
 146 void set_caption(const char *s);
 147 void lock_screen(SDL_Surface *screen);
 148 void unlock_screen(SDL_Surface *screen);
 149 void blit_surface(SDL_Surface *screen, SDL_Surface *image, int xp, int yp);
 150 void blit_surface_area(SDL_Surface *screen, SDL_Surface *image,
 151     int tx, int ty, int fx, int fy, int fw, int fh);
 152 void blit_surface_repeat(SDL_Surface *screen, SDL_Surface *image,
 153     int xp, int yp, int w, int h);
 154 void blit_surface_repeat_area(SDL_Surface *screen, SDL_Surface *image,
 155     int tx, int ty, int tw, int th, int fx, int fy, int fw, int fh);
 156 int in_rect(int xp, int yp, int x, int y, int w, int h);
 157 int in_sdl_rect(int xp, int yp, SDL_Rect *r);
 158 void blit_surface_fill_from(SDL_Surface *screen, SDL_Surface *image,
 159     int tx, int ty, int tw, int th, int fx1, int fy1);
 160 int is_box_in(enum boxtype_t bt);
 161 int is_box_out(enum boxtype_t bt);
 162 int is_box_normal(enum boxtype_t bt);
 163 int is_box_hover(enum boxtype_t bt);
 164 int is_box_active(enum boxtype_t bt);
 165 enum boxtype_t paint_box(SDL_Surface *screen, struct smode_t *smode,
 166     struct theme_t *theme, SDL_Surface *text, SDL_Rect *b,
 167     enum boxtype_t bt, int centre);
 168 void init_button(struct widget_t *widget, TTF_Font *font, const char *text,
 169     int x, int y, int w, int h);
 170 void init_checkbox(struct widget_t *widget, TTF_Font *font, const char *text,
 171     struct theme_t *theme, int checked, int x, int y, int w, int h, int bw);
 172 void init_textbox(struct widget_t *widget, TTF_Font *font, const char *data,
 173     size_t len, struct theme_t *theme, int x, int y, int w, int h);
 174 size_t in_widget_array(int xp, int yp, struct widget_t *widget, size_t n);
 175 int set_widget_sel(struct widget_sel_t *sel, int xp, int yp, int click,
 176     size_t offset, struct widget_t *widget, size_t n);
 177 enum boxtype_t paint_widget(SDL_Surface *screen, struct smode_t *smode,
 178     struct theme_t *theme, struct widget_t *widget);
 179 void perform_widget_click(struct widget_t *widget);
 180 int render_restricted_text(SDL_Surface **text, const char *data,
 181     TTF_Font *font, int w);
 182 int widget_process_character(struct widget_t *widget, SDL_keysym *sym,
 183     struct font_t *font, struct theme_t *theme);
 184 void paint_widget_array(SDL_Surface *screen, struct smode_t *smode,
 185     struct theme_t *theme, struct widget_t *widget, size_t n);
 186 int widget_can_be_active(enum widget_type_t wt);
 187 void enable_unicode(enum widget_type_t wt);
 188 void free_widget_array(struct widget_t *widget, size_t n);
 189
 190 #endif