rnd-20030105-1-src

[rocksndiamonds.git] / src / libgame / gadgets.c

diff --git a/src/libgame/gadgets.c b/src/libgame/gadgets.c
index 7f5125d20cd885cf059dc131b0d7eb761be9ff7d..9dfea83896e25a33d61c3a90899d8e28e40a158d 100644 (file)
--- a/src/libgame/gadgets.c
+++ b/src/libgame/gadgets.c
@@ -1,7 +1,7 @@
 /***********************************************************
 * Artsoft Retro-Game Library                               *
 *----------------------------------------------------------*
-* (c) 1994-2001 Artsoft Entertainment                      *
+* (c) 1994-2002 Artsoft Entertainment                      *
 *               Holger Schemel                             *
 *               Detmolder Strasse 189                      *
 *               33604 Bielefeld                            *
@@ -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;
@@ -102,8 +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,
@@ -141,7 +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] = '~';
@@ -150,8 +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;
 
@@ -168,33 +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;
 
@@ -273,8 +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;
@@ -556,14 +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);
@@ -594,7 +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);
 }