X-Git-Url: https://git.artsoft.org/?a=blobdiff_plain;f=src%2Flibgame%2Fgadgets.c;h=2c06d4bda99a31cdae41f239b992092fc0981a92;hb=3683bbbe90156d2a9ab32de08099e094a446e5f8;hp=77eb4718d0c7f049a5be0ea1f372627820fc91d3;hpb=dce27fe1c087a26e6dac4ef6367012c51810f327;p=rocksndiamonds.git

diff --git a/src/libgame/gadgets.c b/src/libgame/gadgets.c
index 77eb4718..2c06d4bd 100644
--- a/src/libgame/gadgets.c
+++ b/src/libgame/gadgets.c
@@ -117,8 +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,
@@ -156,7 +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] = '~';
@@ -165,8 +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;
 
@@ -183,33 +188,37 @@ 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;
 
@@ -226,33 +235,37 @@ 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);
 
 	/* left part of gadget */
-	BlitBitmap(gd->bitmap, drawto,
-		   gd->x, gd->y,
-		   gi->border.size, gi->height,
-		   xpos, ypos);
+	BlitBitmapOnBackground(gd->bitmap, drawto,
+			       gd->x, gd->y,
+			       gi->border.size, gi->height,
+			       xpos, ypos);
 
 	/* middle part of gadget */
 	for (i=0; i<num_steps; i++)
-	  BlitBitmap(gd->bitmap, drawto,
-		     gd->x + gi->border.size, gd->y,
-		     design_body, gi->height,
-		     xpos + gi->border.size + i * design_body, ypos);
+	  BlitBitmapOnBackground(gd->bitmap, drawto,
+				 gd->x + gi->border.size, gd->y,
+				 design_body, gi->height,
+				 xpos + gi->border.size + i * design_body,
+				 ypos);
 
 	/* remaining middle part of gadget */
 	if (step_size_remain > 0)
-	  BlitBitmap(gd->bitmap, drawto,
-		     gd->x + gi->border.size, gd->y,
-		     step_size_remain, gi->height,
-		     xpos + gi->border.size + num_steps * design_body, ypos);
+	  BlitBitmapOnBackground(gd->bitmap, drawto,
+				 gd->x + gi->border.size, gd->y,
+				 step_size_remain, gi->height,
+				 xpos + gi->border.size
+				 + num_steps * design_body,
+				 ypos);
 
 	/* right part of gadget */
-	BlitBitmap(gd->bitmap, drawto,
-		   gd->x + design_full - gi->border.size, gd->y,
-		   gi->border.size, gi->height,
-		   xpos + size_full - gi->border.size, ypos);
+	BlitBitmapOnBackground(gd->bitmap, drawto,
+			       gd->x + design_full - gi->border.size, gd->y,
+			       gi->border.size, gi->height,
+			       xpos + size_full - gi->border.size, ypos);
       }
       break;
 
@@ -288,8 +301,13 @@ 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;
@@ -571,14 +589,14 @@ 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);
@@ -609,7 +627,9 @@ 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);
 }