graphics.h

   1 #ifndef GRAPHICS_H
   2 #define GRAPHICS_H
   3
   4 #include "SDL.h"
   5 #include "SDL_ttf.h"
   6
   7 /* GUI_PATH must end with a directory separator. */
   8 #define GUI_PATH "gui/"
   9 #define GUI_PATH_LEN 4
  10
  11 #define ICON_FILE GUI_PATH "icon.bmp"
  12 #define LOG_FILE "xuni.log"
  13
  14 #define MONOSPACE_FONT GUI_PATH "FreeMono.ttf"
  15 #define SANS_SERIF_FONT GUI_PATH "FreeSans.ttf"
  16
  17 #define VERSION "xuni version 1.0.0"
  18 #define TITLE_PREFIX "xuni: "
  19
  20 /*#undef MIN
  21 #undef MAX
  22 #define MIN(x,y) ((x) < (y) ? (x) : (y))
  23 #define MAX(x,y) ((x) > (y) ? (x) : (y))*/
  24
  25 struct string_t {
  26     char *data;
  27     size_t len;
  28 };
  29
  30 struct strings_t {
  31     char **data;
  32     size_t *len;
  33     size_t num;
  34 };
  35
  36 struct font_t {
  37     struct string_t mononame, sansname;
  38     TTF_Font *mono, *sans;
  39     int point;
  40 };
  41
  42 struct resize_image_t {
  43     SDL_Surface *original, *image;
  44 };
  45
  46 enum widget_type_t {
  47     WIDGET_BUTTON,
  48     WIDGET_CHECKBOX,
  49     WIDGET_TEXTBOX,
  50     WIDGET_LISTBOX  /* !!! needs working on */
  51 };
  52
  53 struct button_t {
  54     SDL_Surface *text;
  55 };
  56
  57 struct checkbox_t {
  58     SDL_Surface *text;
  59     int checked;  /* True if the checkbox is checked. */
  60     int bw;
  61 };
  62
  63 struct textbox_t {
  64     char *data;
  65     size_t len;
  66     SDL_Surface *text;
  67     int ra;  /* !!! not used */
  68 };
  69
  70 struct listbox_t {
  71     struct strings_t data;
  72 };
  73
  74 struct widget_t {
  75     enum widget_type_t type;
  76
  77     union {
  78         struct button_t *button;
  79         struct checkbox_t *checkbox;
  80         struct textbox_t *textbox;
  81         void *all;  /* Used by free(). */
  82     } p;
  83
  84     SDL_Rect pos;
  85 };
  86
  87 enum boxtype_t {
  88     BOX_ERROR = -1,
  89     BOX_OUT,
  90     BOX_OUT_HOVER,
  91     BOX_OUT_ACTIVE,
  92     BOX_IN,
  93     BOX_IN_HOVER,
  94     BOX_IN_ACTIVE,
  95     BOXTYPES
  96 };
  97
  98 struct theme_t {
  99     struct string_t name;
 100     int boxw, boxh;
 101
 102     struct {
 103         struct resize_image_t corners;
 104     } box[BOXTYPES];
 105
 106     struct resize_image_t check;
 107 };
 108
 109 struct widget_p_t {
 110     struct widget_t *widget;
 111     size_t id;
 112 };
 113
 114 struct widget_sel_t {
 115     /*Uint8 button;
 116     int xp, yp;*/
 117     int wasin, clickin;
 118     struct widget_p_t p;
 119 };
 120
 121 struct smode_t {
 122     SDL_Surface *screen;
 123     int width, height;
 124     int depth;
 125     int fullscreen;
 126     int focus;
 127     SDL_GrabMode restrictfocus;
 128
 129     int main_menu_quality;
 130
 131     struct widget_sel_t sel;
 132     struct widget_p_t active;
 133 };
 134
 135 void clear_smode(struct smode_t *smode);
 136 void clear_sel(struct widget_sel_t *sel);
 137 void clear_active(struct widget_p_t *wp);
 138 void init_sdl(struct smode_t *smode);
 139 SDL_GrabMode set_focus(SDL_GrabMode mode);
 140 void quit_sdl(void);
 141 void free_resize_image(struct resize_image_t *image);
 142 void free_fonts(struct font_t *font);
 143 void free_theme(struct theme_t *theme);
 144 void load_icon(void);
 145 void load_fonts(struct font_t *font);
 146 void load_theme(struct theme_t *theme);
 147 SDL_Surface *load_image(const char *filename);
 148 void load_resize_image(struct resize_image_t *image, const char *filename);
 149 int resize_screen(struct smode_t *smode, SDL_ResizeEvent *resize);
 150 int toggle_fullscreen(struct smode_t *smode);
 151 void reload_fonts(struct font_t *font, struct smode_t *smode);
 152 void resize_theme(struct theme_t *theme, struct smode_t *smode);
 153 void set_caption(const char *s);
 154 void lock_screen(SDL_Surface *screen);
 155 void unlock_screen(SDL_Surface *screen);
 156 void blit_surface(SDL_Surface *screen, SDL_Surface *image, int xp, int yp);
 157 void blit_surface_area(SDL_Surface *screen, SDL_Surface *image,
 158     int tx, int ty, int fx, int fy, int fw, int fh);
 159 void blit_surface_repeat(SDL_Surface *screen, SDL_Surface *image,
 160     int xp, int yp, int w, int h);
 161 void blit_surface_repeat_area(SDL_Surface *screen, SDL_Surface *image,
 162     int tx, int ty, int tw, int th, int fx, int fy, int fw, int fh);
 163 int in_rect(int xp, int yp, int x, int y, int w, int h);
 164 int in_sdl_rect(int xp, int yp, SDL_Rect *r);
 165 void blit_surface_fill_from(SDL_Surface *screen, SDL_Surface *image,
 166     int tx, int ty, int tw, int th, int fx1, int fy1);
 167 int is_box_in(enum boxtype_t bt);
 168 int is_box_out(enum boxtype_t bt);
 169 int is_box_normal(enum boxtype_t bt);
 170 int is_box_hover(enum boxtype_t bt);
 171 int is_box_active(enum boxtype_t bt);
 172 enum boxtype_t paint_box(SDL_Surface *screen, struct theme_t *theme,
 173     SDL_Rect *b, enum boxtype_t bt);
 174 void paint_centred_text(SDL_Surface *screen, struct theme_t *theme,
 175     SDL_Surface *text, SDL_Rect *b, enum boxtype_t bt);
 176 void paint_textbox_text(SDL_Surface *screen, struct font_t *font,
 177     struct theme_t *theme, SDL_Surface *text, SDL_Rect *b, enum boxtype_t bt,
 178     int cursor);
 179 void init_button(struct widget_t *widget, TTF_Font *font, const char *text,
 180     int x, int y, int w, int h);
 181 void init_checkbox(struct widget_t *widget, TTF_Font *font, const char *text,
 182     struct theme_t *theme, int checked, int x, int y, int w, int h, int bw);
 183 void init_textbox(struct widget_t *widget, TTF_Font *font, const char *data,
 184     size_t len, struct theme_t *theme, int x, int y, int w, int h);
 185 size_t in_widget_array(int xp, int yp, struct widget_t *widget, size_t n);
 186 int set_widget_sel(struct widget_sel_t *sel, int xp, int yp, int click,
 187     size_t offset, struct widget_t *widget, size_t n);
 188 enum boxtype_t paint_widget(struct smode_t *smode, struct font_t *font,
 189     struct theme_t *theme, struct widget_t *widget);
 190 void perform_widget_click(struct widget_t *widget);
 191 int render_restricted_text(SDL_Surface **text, const char *data,
 192     TTF_Font *font, int w);
 193 int widget_process_character(struct widget_t *widget, SDL_keysym *sym,
 194     struct smode_t *smode, struct font_t *font, struct theme_t *theme);
 195 void paint_widget_array(struct smode_t *smode, struct font_t *font,
 196     struct theme_t *theme, struct widget_t *widget, size_t n);
 197 int widget_can_be_active(enum widget_type_t wt);
 198 void enable_unicode(enum widget_type_t wt);
 199 void free_widget_array(struct widget_t *widget, size_t n);
 200
 201 #endif