Separated font graphics from skin graphics. WIP, a lot is still hard-coded (font list) or not coded at all (save/load in ini, and match in skin selection screen).

git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@885 416bcca6-2ee7-4201-b75f-2eb2f807beb1

buttons.c

@@ -1035,6 +1035,10 @@ void Button_Skins(void)
   T_Dropdown_button * cursor_dropdown;
   T_List_button * skin_list;
   T_Scroller_button * file_scroller;
+  int selected_font=0;
+  
+  char * fonts[] = {"Classic", "Fun", "Melon", "Fairlight"};
+  int nb_fonts = 4;
 
   #define FILESEL_Y 52
 
@@ -1075,9 +1079,11 @@ void Button_Skins(void)
     Draw_one_skin_name); // 4
 
   // Boutons de fontes
-  font_dropdown = Window_set_dropdown_button(60,19,70,11,0,(Config_choisie.Font==0)?"Classic":"Fun    ",1,0,1,RIGHT_SIDE|LEFT_SIDE); // 5
-  Window_dropdown_add_item(font_dropdown,0,"Classic");
-  Window_dropdown_add_item(font_dropdown,1,"Fun    ");
+  font_dropdown = Window_set_dropdown_button(60,19,70,11,0, fonts[selected_font],1,0,1,RIGHT_SIDE|LEFT_SIDE); // 5
+  for (temp=0; temp<nb_fonts; temp++)
+    Window_dropdown_add_item(font_dropdown,temp,fonts[temp]);
+
+
 
   // Cancel
   Window_set_normal_button(62,136, 51,14,"Cancel",0,1,SDLK_ESCAPE); // 6
@@ -1121,7 +1127,7 @@ void Button_Skins(void)
       case 4 : // a file is selected
         break;
       case  5 : // Font dropdown
-        Config_choisie.Font=Window_attribute2; // récupère le numéro de l'item selectionné
+        selected_font=Window_attribute2; // Get the index of the chosen font.
         break;
 	  // 5: Cancel
        case 7 : // Cursor
@@ -1257,13 +1263,27 @@ void Button_Skins(void)
 	  }
 	  else
 	  {
+	    byte * new_font;
+	    
       free(Gfx);
       Gfx = gfx;
   	  // Font selection
-  	  if (Config_choisie.Font)
-  		  Menu_font=Gfx->Fun_font;
-  	  else
-  		  Menu_font=Gfx->System_font;
+  	  new_font = Load_font(fonts[selected_font]);
+  	  if (new_font)
+  	  {
+  	    free(Menu_font);
+  	    Menu_font = new_font;
+  	    if (Config_choisie.Font_name)
+  	    {
+  	      free (Config_choisie.Font_name);
+  	      Config_choisie.Font_name = NULL;
+  	    }
+  	    Config_choisie.Font_name = (char *)malloc(strlen(fonts[selected_font])+1);
+  	    if (Config_choisie.Font_name)
+  	    {
+  	      strcpy(Config_choisie.Font_name,fonts[selected_font]);
+  	    }
+  	  }
       
 	    strcpy(Config_choisie.SkinFile,skinsdir+6);
 	  }

gfx2def.ini

@@ -76,11 +76,6 @@
   ;    the menus and tool-bar         |    des menus et de la barre d'outils
   Menu_ratio = 1	; (default 1)
 
-  ; Font:                             | Police de caractères (fonte):
-  ; 1: Classic                        | 1: Classique
-  ; 2: Fun                            | 2: Fun
-  Font = 1	; (default 1)
-
 [FILE_SELECTOR]                       # [SELECTEUR_DE_FICHIERS]
 
   ; Show hidden files and             | Afficher les fichiers et répertoires

global.h

@@ -794,7 +794,7 @@ GFX2_GLOBAL byte Resolution_in_command_line;
 
 // - Graphic
 
-/// Pointer to the font selected for menus. It's either ::Gfx->System_font or ::Gfx->Fun_font
+/// Pointer to the font selected for menus.
 GFX2_GLOBAL byte * Menu_font;
 
 /// Pointer to the current active skin.

init.c

@@ -475,50 +475,6 @@ byte Parse_skin(SDL_Surface * gui, T_Gui_skin *gfx)
   }
   cursor_y+=16;
 
-  // Font Systčme
-  for (i=0; i<256; i++)
-  {
-    // Rangés par ligne de 32
-    if ((i%32)==0)
-    {
-      if (i!=0)
-        cursor_y+=8;
-      if (GUI_seek_down(gui, &cursor_x, &cursor_y, neutral_color, "system font"))
-        return 1;
-    }
-    else
-    {
-      if (GUI_seek_right(gui, &cursor_x, cursor_y, neutral_color, "system font"))
-        return 1;
-    }
-    if (Read_GUI_block(gui, cursor_x, cursor_y, &gfx->System_font[i*64], 8, 8, "system font",2))
-      return 1;
-    cursor_x+=8;
-  }
-  cursor_y+=8;
-
-  // Font Fun
-  for (i=0; i<256; i++)
-  {
-    // Rangés par ligne de 32
-    if ((i%32)==0)
-    {
-      if (i!=0)
-        cursor_y+=8;
-      if (GUI_seek_down(gui, &cursor_x, &cursor_y, neutral_color, "fun font"))
-        return 1;
-    }
-    else
-    {
-      if (GUI_seek_right(gui, &cursor_x, cursor_y, neutral_color, "fun font"))
-        return 1;
-    }
-    if (Read_GUI_block(gui, cursor_x, cursor_y, &gfx->Fun_font[i*64], 8, 8, "fun font",2))
-      return 1;
-    cursor_x+=8;
-  }
-  cursor_y+=8;
-
   // Font help normale
   for (i=0; i<256; i++)
   {
@@ -835,6 +791,82 @@ T_Gui_skin * Load_graphics(const char * skin_file)
   return gfx;
 }
 
+// ---- font loading -----
+
+byte Parse_font(SDL_Surface * image, byte * font)
+{
+  int character;
+  byte color;
+  int x, y;
+  int chars_per_line;
+  
+  // Check image size
+  if (image->w % 8)
+  {
+    sprintf(Gui_loading_error_message, "Error in font file: Image width is not a multiple of 8.\n");
+    return 1;
+  }
+  if (image->w * image->h < 8*8*256)
+  {
+    sprintf(Gui_loading_error_message, "Error in font file: Image is too small to be a 256-character 8x8 font.\n");
+    return 1;
+  }
+  chars_per_line = image->w/8;
+
+  for (character=0; character < 256; character++)
+  {
+    for (y=0; y<8; y++)
+    {
+      for (x=0;x<8; x++)
+      {
+        // Pick pixel
+        color = Get_SDL_pixel_8(image, (character % chars_per_line)*8+x, (character / chars_per_line)*8+y);
+        if (color > 1)
+        {
+          sprintf(Gui_loading_error_message, "Error in font file: Only colors 0 and 1 can be used for the font.\n");
+          return 1;
+        }
+        // Put it in font. 0 = BG, 1 = FG.
+        font[character*64 + y*8 + x]=color;
+      }
+    }
+  }
+  return 0;
+}
+
+byte * Load_font(const char * font_name)
+{
+  byte * font;
+  char filename[MAX_PATH_CHARACTERS];
+  SDL_Surface * image;
+
+  font = (byte *)malloc(8*8*256);
+  if (font == NULL)
+  {
+    sprintf(Gui_loading_error_message, "Not enough memory to read font file\n");
+    return NULL;
+  }
+  
+  // Read the file containing the image
+  sprintf(filename,"%sskins%sfont_%s.png", Data_directory, PATH_SEPARATOR, font_name);
+  
+  image=IMG_Load(filename);
+  if (!image)
+  {
+    sprintf(Gui_loading_error_message, "Unable to load the skin image (missing? not an image file?)\n");
+    free(font);
+    return NULL;
+  }
+  if (Parse_font(image, font))
+  {
+    SDL_FreeSurface(image);
+    free(font);
+    return NULL;
+  }
+  SDL_FreeSurface(image);
+  return font;
+}
+
 
 // Initialisation des boutons:
 

init.h

@@ -32,3 +32,11 @@ void Set_config_defaults(void);
 void Init_sighandler(void);
 
 extern char Gui_loading_error_message[512];
+
+///
+/// Loads a 8x8 monochrome font, the kind used in all menus and screens.
+/// This function allocates the memory, and returns a pointer to it when
+/// successful.
+/// If an error is encountered, it frees what needs it, prints an error message
+/// in ::Gui_loading_error_message, and returns NULL.
+byte * Load_font(const char * font_name);

main.c

@@ -555,11 +555,14 @@ int Init_program(int argc,char * argv[])
   Fore_color=MC_White;
   Back_color=MC_Black;
 
-  // Prise en compte de la fonte
-  if (Config.Font)
-    Menu_font=Gfx->Fun_font;
-  else
-    Menu_font=Gfx->System_font;
+  // Font
+  {
+    byte *font;
+    font = Load_font("Classic");
+    if (font)
+      Menu_font=font;
+  }
+
 
   memcpy(Main_palette, Gfx->Default_palette, sizeof(T_Palette));
 

readini.c

@@ -523,12 +523,6 @@ int Load_INI(T_Config * conf)
     goto Erreur_ERREUR_INI_CORROMPU;
   conf->Ratio=values[0];
 
-  if ((return_code=Load_INI_get_values (file,buffer,"Font",1,values)))
-    goto Erreur_Retour;
-  if ((values[0]<1) || (values[0]>2))
-    goto Erreur_ERREUR_INI_CORROMPU;
-  conf->Font=values[0]-1;
-
   if ((return_code=Load_INI_reach_group(file,buffer,"[FILE_SELECTOR]")))
     goto Erreur_Retour;
 

saveini.c

@@ -476,10 +476,6 @@ int Save_INI(T_Config * conf)
   if ((return_code=Save_INI_set_values (Ancien_fichier,Nouveau_fichier,buffer,"Menu_ratio",1,values,0)))
     goto Erreur_Retour;
 
-  values[0]=(conf->Font)+1;
-  if ((return_code=Save_INI_set_values (Ancien_fichier,Nouveau_fichier,buffer,"Font",1,values,0)))
-    goto Erreur_Retour;
-
   if ((return_code=Save_INI_reach_group(Ancien_fichier,Nouveau_fichier,buffer,"[FILE_SELECTOR]")))
     goto Erreur_Retour;
 

struct.h

@@ -240,7 +240,7 @@ typedef struct
 /// This structure holds all the settings which are saved and loaded as gfx2.ini.
 typedef struct
 {
-  byte Font;                             ///< Boolean, true to use the "fun" font in menus, false to use the classic one.
+  char *Font_name;                       ///< Name of the font used in the menus. Matches file skins/font_*.png (Case-sensitive on some filesystems)
   char SkinFile[64];                     ///< String, name of the file where all the graphic data is stored
   int  Show_hidden_files;                ///< Boolean, true to show hidden files in fileselectors.
   int  Show_hidden_directories;          ///< Boolean, true to show hidden directories in fileselectors.
@@ -380,13 +380,6 @@ typedef struct
   /// Bitmap data for the small 8x8 icons.
   byte Icon_sprite[NB_ICON_SPRITES][ICON_SPRITE_HEIGHT][ICON_SPRITE_WIDTH];
 
-  // 8x8 fonts
-  
-  /// Bitmap data for the classic 8x8 font used in menus etc.
-  byte System_font[256*8*8];
-  /// Bitmap data for the "fun" 8x8 font used in menus etc.
-  byte Fun_font    [256*8*8];
-  
   /// A default 256-color palette.
   T_Palette Default_palette;