rnd-20030105-1-src
[rocksndiamonds.git] / src / libgame / gadgets.c
index a73564b6b006c1e0e67d4e960188e28b62f2d4b8..9dfea83896e25a33d61c3a90899d8e28e40a158d 100644 (file)
@@ -1,14 +1,14 @@
 /***********************************************************
-*  Rocks'n'Diamonds -- McDuffin Strikes Back!              *
+* Artsoft Retro-Game Library                               *
 *----------------------------------------------------------*
-*  (c) 1995-98 Artsoft Entertainment                       *
-*              Holger Schemel                              *
-*              Oststrasse 11a                              *
-*              33604 Bielefeld                             *
-*              phone: ++49 +521 290471                     *
-*              email: aeglos@valinor.owl.de                *
+* (c) 1994-2002 Artsoft Entertainment                      *
+*               Holger Schemel                             *
+*               Detmolder Strasse 189                      *
+*               33604 Bielefeld                            *
+*               Germany                                    *
+*               e-mail: info@artsoft.org                   *
 *----------------------------------------------------------*
-*  gadgets.c                                               *
+* gadgets.c                                                *
 ***********************************************************/
 
 #include <stdarg.h>
@@ -63,6 +63,21 @@ static int getNewGadgetID()
   return id;
 }
 
+#if 0
+void DUMP_GADGET_MAP_STATE()
+{
+  struct GadgetInfo *gi = gadget_list_first_entry;
+
+  while (gi)
+  {
+    printf("-XXX-1-> '%s': %s\n",
+          gi->info_text, (gi->mapped ? "mapped" : "not mapped"));
+
+    gi = gi->next;
+  }
+}
+#endif
+
 static struct GadgetInfo *getGadgetInfoFromMousePosition(int mx, int my)
 {
   struct GadgetInfo *gi = gadget_list_first_entry;
@@ -82,11 +97,6 @@ static struct GadgetInfo *getGadgetInfoFromMousePosition(int mx, int my)
 
 static void default_callback_info(void *ptr)
 {
-#if 0
-  if (game_status == LEVELED)
-    HandleEditorGadgetInfoText(ptr);
-#endif
-
   return;
 }
 
@@ -107,8 +117,9 @@ static void DrawGadget(struct GadgetInfo *gi, boolean pressed, boolean direct)
     case GD_TYPE_NORMAL_BUTTON:
     case GD_TYPE_CHECK_BUTTON:
     case GD_TYPE_RADIO_BUTTON:
-      BlitBitmap(gd->bitmap, drawto,
-                gd->x, gd->y, gi->width, gi->height, gi->x, gi->y);
+      BlitBitmapOnBackground(gd->bitmap, drawto,
+                            gd->x, gd->y, gi->width, gi->height,
+                            gi->x, gi->y);
       if (gi->deco.design.bitmap)
        BlitBitmap(gi->deco.design.bitmap, drawto,
                   gi->deco.design.x, gi->deco.design.y,
@@ -146,7 +157,9 @@ static void DrawGadget(struct GadgetInfo *gi, boolean pressed, boolean direct)
                   border, gi->height, gi->x + gi->width - border, gi->y);
 
        /* gadget text value */
-       DrawText(gi->x + border, gi->y + border, text, FS_SMALL, font_type);
+       DrawTextExt(drawto,
+                   gi->x + border, gi->y + border, text,
+                   FS_SMALL, font_type, FONT_OPAQUE);
 
        cursor_letter = gi->text.value[gi->text.cursor_position];
        cursor_string[0] = '~';
@@ -155,8 +168,10 @@ static void DrawGadget(struct GadgetInfo *gi, boolean pressed, boolean direct)
 
        /* draw cursor, if active */
        if (pressed)
-         DrawText(gi->x + border + gi->text.cursor_position * font_width,
-                  gi->y + border, cursor_string, FS_SMALL, font_type);
+         DrawTextExt(drawto,
+                     gi->x + border + gi->text.cursor_position * font_width,
+                     gi->y + border, cursor_string,
+                     FS_SMALL, font_type, FONT_OPAQUE);
       }
       break;
 
@@ -173,33 +188,36 @@ static void DrawGadget(struct GadgetInfo *gi, boolean pressed, boolean direct)
        int step_size_remain = size_body - num_steps * design_body;
 
        /* clear scrollbar area */
-       ClearRectangle(backbuffer, gi->x, gi->y, gi->width, gi->height);
+       ClearRectangleOnBackground(backbuffer, gi->x, gi->y,
+                                  gi->width, gi->height);
 
        /* upper part of gadget */
-       BlitBitmap(gd->bitmap, drawto,
-                  gd->x, gd->y,
-                  gi->width, gi->border.size,
-                  xpos, ypos);
+       BlitBitmapOnBackground(gd->bitmap, drawto,
+                              gd->x, gd->y,
+                              gi->width, gi->border.size,
+                              xpos, ypos);
 
        /* middle part of gadget */
        for (i=0; i<num_steps; i++)
-         BlitBitmap(gd->bitmap, drawto,
-                    gd->x, gd->y + gi->border.size,
-                    gi->width, design_body,
-                    xpos, ypos + gi->border.size + i * design_body);
+         BlitBitmapOnBackground(gd->bitmap, drawto,
+                                gd->x, gd->y + gi->border.size,
+                                gi->width, design_body,
+                                xpos, ypos + gi->border.size
+                                + i * design_body);
 
        /* remaining middle part of gadget */
        if (step_size_remain > 0)
-         BlitBitmap(gd->bitmap, drawto,
-                    gd->x,  gd->y + gi->border.size,
-                    gi->width, step_size_remain,
-                    xpos, ypos + gi->border.size + num_steps * design_body);
+         BlitBitmapOnBackground(gd->bitmap, drawto,
+                                gd->x,  gd->y + gi->border.size,
+                                gi->width, step_size_remain,
+                                xpos, ypos + gi->border.size
+                                + num_steps * design_body);
 
        /* lower part of gadget */
-       BlitBitmap(gd->bitmap, drawto,
-                  gd->x, gd->y + design_full - gi->border.size,
-                  gi->width, gi->border.size,
-                  xpos, ypos + size_full - gi->border.size);
+       BlitBitmapOnBackground(gd->bitmap, drawto,
+                              gd->x, gd->y + design_full - gi->border.size,
+                              gi->width, gi->border.size,
+                              xpos, ypos + size_full - gi->border.size);
       }
       break;
 
@@ -278,8 +296,13 @@ static void HandleGadgetTags(struct GadgetInfo *gi, int first_tag, va_list ap)
       case GDI_INFO_TEXT:
        {
          int max_textsize = MAX_INFO_TEXTSIZE - 1;
+         char *text = va_arg(ap, char *);
+
+         if (text != NULL)
+           strncpy(gi->info_text, text, max_textsize);
+         else
+           max_textsize = 0;
 
-         strncpy(gi->info_text, va_arg(ap, char *), max_textsize);
          gi->info_text[max_textsize] = '\0';
        }
        break;
@@ -309,7 +332,9 @@ static void HandleGadgetTags(struct GadgetInfo *gi, int first_tag, va_list ap)
        break;
 
       case GDI_CHECKED:
-       gi->checked = va_arg(ap, boolean);
+       /* take care here: "boolean" is typedef'ed as "unsigned char",
+          which gets promoted to "int" */
+       gi->checked = (boolean)va_arg(ap, int);
        break;
 
       case GDI_RADIO_NR:
@@ -368,25 +393,25 @@ static void HandleGadgetTags(struct GadgetInfo *gi, int first_tag, va_list ap)
        break;
 
       case GDI_DESIGN_UNPRESSED:
-       gi->design[GD_BUTTON_UNPRESSED].bitmap = va_arg(ap, Bitmap);
+       gi->design[GD_BUTTON_UNPRESSED].bitmap = va_arg(ap, Bitmap *);
        gi->design[GD_BUTTON_UNPRESSED].x = va_arg(ap, int);
        gi->design[GD_BUTTON_UNPRESSED].y = va_arg(ap, int);
        break;
 
       case GDI_DESIGN_PRESSED:
-       gi->design[GD_BUTTON_PRESSED].bitmap = va_arg(ap, Bitmap);
+       gi->design[GD_BUTTON_PRESSED].bitmap = va_arg(ap, Bitmap *);
        gi->design[GD_BUTTON_PRESSED].x = va_arg(ap, int);
        gi->design[GD_BUTTON_PRESSED].y = va_arg(ap, int);
        break;
 
       case GDI_ALT_DESIGN_UNPRESSED:
-       gi->alt_design[GD_BUTTON_UNPRESSED].bitmap= va_arg(ap, Bitmap);
+       gi->alt_design[GD_BUTTON_UNPRESSED].bitmap= va_arg(ap, Bitmap *);
        gi->alt_design[GD_BUTTON_UNPRESSED].x = va_arg(ap, int);
        gi->alt_design[GD_BUTTON_UNPRESSED].y = va_arg(ap, int);
        break;
 
       case GDI_ALT_DESIGN_PRESSED:
-       gi->alt_design[GD_BUTTON_PRESSED].bitmap = va_arg(ap, Bitmap);
+       gi->alt_design[GD_BUTTON_PRESSED].bitmap = va_arg(ap, Bitmap *);
        gi->alt_design[GD_BUTTON_PRESSED].x = va_arg(ap, int);
        gi->alt_design[GD_BUTTON_PRESSED].y = va_arg(ap, int);
        break;
@@ -400,7 +425,7 @@ static void HandleGadgetTags(struct GadgetInfo *gi, int first_tag, va_list ap)
        break;
 
       case GDI_DECORATION_DESIGN:
-       gi->deco.design.bitmap = va_arg(ap, Bitmap);
+       gi->deco.design.bitmap = va_arg(ap, Bitmap *);
        gi->deco.design.x = va_arg(ap, int);
        gi->deco.design.y = va_arg(ap, int);
        break;
@@ -559,14 +584,14 @@ void RedrawGadget(struct GadgetInfo *gi)
 
 struct GadgetInfo *CreateGadget(int first_tag, ...)
 {
-  struct GadgetInfo *new_gadget = checked_malloc(sizeof(struct GadgetInfo));
+  struct GadgetInfo *new_gadget = checked_calloc(sizeof(struct GadgetInfo));
   va_list ap;
 
   /* always start with reliable default values */
-  memset(new_gadget, 0, sizeof(struct GadgetInfo));    /* zero all fields */
   new_gadget->id = getNewGadgetID();
   new_gadget->callback_info = default_callback_info;
   new_gadget->callback_action = default_callback_action;
+  new_gadget->next = NULL;
 
   va_start(ap, first_tag);
   HandleGadgetTags(new_gadget, first_tag, ap);
@@ -597,7 +622,9 @@ void FreeGadget(struct GadgetInfo *gi)
   if (gi == gadget_list_last_entry)
     gadget_list_last_entry = gi_previous;
 
-  gi_previous->next = gi->next;
+  if (gi_previous)
+    gi_previous->next = gi->next;
+
   free(gi);
 }
 
@@ -849,15 +876,27 @@ void HandleGadgets(int mx, int my, int button)
   if (last_info_gi != new_gi ||
       (new_gi && new_gi->type == GD_TYPE_DRAWING_AREA && changed_position))
   {
-    last_info_gi = new_gi;
-
     if (new_gi != NULL && (button == 0 || new_gi == last_gi))
     {
-      new_gi->event.type = 0;
+      new_gi->event.type = GD_EVENT_INFO_ENTERING;
       new_gi->callback_info(new_gi);
     }
-    else
+    else if (last_info_gi != NULL)
+    {
+      last_info_gi->event.type = GD_EVENT_INFO_LEAVING;
+      last_info_gi->callback_info(last_info_gi);
+
+#if 0
       default_callback_info(NULL);
+
+      printf("It seems that we are leaving gadget [%s]!\n",
+            (last_info_gi != NULL &&
+             last_info_gi->info_text != NULL ?
+             last_info_gi->info_text : ""));
+#endif
+    }
+
+    last_info_gi = new_gi;
   }
 
   if (gadget_pressed)