From 2a70613911a7b15fea22adc7f2a88bd5bb7b8a19 Mon Sep 17 00:00:00 2001
From: bernie <bernie@38d2e660-2303-0410-9eaa-f027e97ec537>
Date: Wed, 13 Sep 2006 13:58:33 +0000
Subject: [PATCH] Add RenderHook support.

git-svn-id: https://src.develer.com/svnoss/bertos/trunk@679 38d2e660-2303-0410-9eaa-f027e97ec537
---
 gui/menu.c | 70 ++++++++++++++++++++++++++++++++----------------------
 gui/menu.h |  7 ++++++
 2 files changed, 49 insertions(+), 28 deletions(-)

diff --git a/gui/menu.c b/gui/menu.c
index 756aba53..4583e312 100755
--- a/gui/menu.c
+++ b/gui/menu.c
@@ -16,6 +16,9 @@
 
 /*#*
  *#* $Log$
+ *#* Revision 1.8  2006/09/13 13:58:32  bernie
+ *#* Add RenderHook support.
+ *#*
  *#* Revision 1.7  2006/08/01 12:22:46  bernie
  *#* Mention DevLib license.
  *#*
@@ -57,6 +60,7 @@
  *#*/
 
 #include "menu.h"
+
 #include <gfx/gfx.h>
 #include <gfx/font.h>
 #include <gfx/text.h>
@@ -88,6 +92,7 @@
 #define PTRMSG(x) ((const char *)x)
 #endif
 
+
 /* Temporary fake defines for ABORT stuff... */
 #define abort_top  0
 #define PUSH_ABORT false
@@ -159,6 +164,39 @@ static void menu_update_menubar(
 #endif /* CONFIG_MENU_MENUBAR */
 
 
+static void menu_defaultRenderHook(struct Bitmap *bm, int ypos, bool selected, const struct MenuItem *item)
+{
+	if (item->flags & MIF_CHECKIT)
+	{
+		gfx_rectClear(bm, 0, ypos,
+				bm->font->height, ypos + bm->font->height);
+
+		if (item->flags & MIF_TOGGLE)
+			gfx_rectDraw(bm, 2, ypos + 2,
+					bm->font->height - 2, ypos + bm->font->height - 2);
+		if (item->flags & MIF_CHECKED)
+		{
+			gfx_line(bm,
+					3, ypos + 3,
+					bm->font->height - 3, ypos + bm->font->height - 3);
+			gfx_line(bm,
+					bm->font->height - 3, ypos + 3,
+					3, ypos + bm->font->height - 3);
+		}
+	}
+
+#if CPU_HARVARD
+	((item->flags & MIF_RAMLABEL) ? text_xyprintf : text_xyprintf_P)
+#else
+	text_xyprintf
+#endif
+	(
+		bm, (item->flags & MIF_CHECKIT) ? bm->font->height : 0, ypos,
+		selected ? (STYLEF_INVERT | TEXT_FILL) : TEXT_FILL,
+		PTRMSG(item->label)
+	);
+}
+
 /**
  * Show a menu on the display.
  */
@@ -254,35 +292,11 @@ static void menu_layout(
 		/* Only print visible items */
 		if (!(item->flags & MIF_HIDDEN))
 		{
-			if (item->flags & MIF_CHECKIT)
-			{
-				gfx_rectClear(bm, 0, ypos,
-						bm->font->height, ypos + bm->font->height);
+			/* Check if a special render function is supplied, otherwise use defaults */
+			RenderHook renderhook = (item->flags & MIF_RENDERHOOK) ? (RenderHook)item->label : menu_defaultRenderHook;
 
-				if (item->flags & MIF_TOGGLE)
-					gfx_rectDraw(bm, 2, ypos + 2,
-							bm->font->height - 2, ypos + bm->font->height - 2);
-				if (item->flags & MIF_CHECKED)
-				{
-					gfx_line(bm,
-							3, ypos + 3,
-							bm->font->height - 3, ypos + bm->font->height - 3);
-					gfx_line(bm,
-							bm->font->height - 3, ypos + 3,
-							3, ypos + bm->font->height - 3);
-				}
-			}
-
-#if CPU_HARVARD
-			((item->flags & MIF_RAMLABEL) ? text_xyprintf : text_xyprintf_P)
-#else
-			text_xyprintf
-#endif
-			(
-				bm, (item->flags & MIF_CHECKIT) ? bm->font->height : 0, ypos,
-				(i == selected) ? (STYLEF_INVERT | TEXT_FILL) : TEXT_FILL,
-				PTRMSG(item->label)
-			);
+			/* Render menuitem */
+			renderhook(menu->bitmap, ypos++, (i == selected), item);
 
 			ypos += bm->font->height;
 		}
diff --git a/gui/menu.h b/gui/menu.h
index c46c7615..30ec2c12 100755
--- a/gui/menu.h
+++ b/gui/menu.h
@@ -16,6 +16,9 @@
 
 /*#*
  *#* $Log$
+ *#* Revision 1.4  2006/09/13 13:58:33  bernie
+ *#* Add RenderHook support.
+ *#*
  *#* Revision 1.3  2006/07/19 12:56:27  bernie
  *#* Convert to new Doxygen style.
  *#*
@@ -86,6 +89,9 @@ typedef struct MenuItem
 	iptr_t       userdata; /**< User data to be passed back to the hook */
 } MenuItem;
 
+/** Render hook callback function prototype */
+typedef void (*RenderHook)(struct Bitmap *bitmap, int ypos, bool selected, const struct MenuItem *item);
+
 /**
  * \name Flags for MenuItem.flags.
  * \{
@@ -107,6 +113,7 @@ typedef struct MenuItem
 #define MIF_HIDDEN          BV(11) /**< This menu item is not visible */
 #define MIF_DISABLED        BV(12) /**< This menu item is not visible */
 #define MIF_RAMLABEL        BV(13) /**< Item label is stored in RAM, not in program memory */
+#define MIF_RENDERHOOK      BV(14) /**< Menu render function is passed in label field */
 /* \} */
 
 /**
-- 
2.25.1