From 31b93e49b8ec13df2ddcf267db4620b28a16c8ce Mon Sep 17 00:00:00 2001
From: "Anselm R. Garbe" <garbeam@wmii.de>
Date: Wed, 14 Jun 2006 18:42:47 +0200
Subject: [PATCH] widget list is necessary after all to provide sane hooks to
 event-check various stuff in liblitz on text input/mouse input

---
 liblitz/Makefile |  2 +-
 liblitz/blitz.h  | 31 +++++++++++++++++++++++++++----
 liblitz/widget.c | 28 ++++++++++++++++++++++++++++
 3 files changed, 56 insertions(+), 5 deletions(-)
 create mode 100644 liblitz/widget.c

diff --git a/liblitz/Makefile b/liblitz/Makefile
index 109db930..230c83cc 100644
--- a/liblitz/Makefile
+++ b/liblitz/Makefile
@@ -6,7 +6,7 @@ include ../config.mk
 CFLAGS += -I../libixp -I../libcext
 LDFLAGS += -L../libixp -lixp -L../libcext -lcext
 
-SRC = blitz.c color.c font.c label.c
+SRC = blitz.c color.c font.c label.c widget.c
 OBJ = ${SRC:.c=.o}
 
 all: liblitz.a
diff --git a/liblitz/blitz.h b/liblitz/blitz.h
index e3bf2e6c..7ea8861b 100644
--- a/liblitz/blitz.h
+++ b/liblitz/blitz.h
@@ -16,11 +16,13 @@ typedef struct BlitzColor BlitzColor;
 typedef struct BlitzFont BlitzFont;
 typedef struct BlitzTile BlitzTile;
 typedef struct BlitzInput BlitzInput;
+typedef union BlitzWidget BlitzWidget;
 
 struct Blitz {
 	Display *display;
 	int screen;
 	Window root;
+	BlitzWidget *widgets;
 };
 
 enum BlitzAlign {
@@ -50,20 +52,35 @@ struct BlitzFont {
 
 struct BlitzTile {
 	Drawable drawable;
+	GC gc;
+	void (*event[LASTEvent]) (BlitzWidget *, XEvent *);
+	BlitzWidget *next;
+	/* widget specific */
 	BlitzColor color;
 	XRectangle rect;	/* relative rect */
 	XRectangle *notch;	/* relative notch rect */
-	void (*event[LASTEvent]) (BlitzTile *, XEvent *);
 };
 
 struct BlitzInput {
 	Drawable drawable;
+	GC gc;
+	void (*event[LASTEvent]) (BlitzWidget *, XEvent *);
+	BlitzWidget *next;
+	/* widget specific */
 	BlitzColor color;
 	BlitzAlign align;
 	BlitzFont font;
 	XRectangle rect;	/* relative rect */
 	char *text;
-	void (*event[LASTEvent]) (BlitzInput *, XEvent *);
+};
+
+union BlitzWidget {
+	Drawable drawable;
+	GC gc;
+	void (*event[LASTEvent]) (BlitzWidget *, XEvent *);
+	BlitzWidget *next;
+	BlitzTile tile;
+	BlitzInput input;
 };
 
 /* obsolete, will be replaced soon */
@@ -92,9 +109,15 @@ int blitz_loadcolor(BlitzColor *c, char *colstr);
 void blitz_drawlabel(BlitzDraw *d);
 void blitz_drawborder(BlitzDraw *d);
 
+/* input.c */
+BlitzInput *blitz_create_input(Drawable drawable, GC gc);
+void blitz_draw_input(BlitzInput *t, char *text);
+void blitz_destroy_input(BlitzInput *t);
+
 /* tile.c */
-void blitz_drawlabel(BlitzDraw *d);
-void blitz_drawborder(BlitzDraw *d);
+BlitzTile *blitz_create_tile(Drawable drawable, GC gc);
+void blitz_draw_tile(BlitzTile *t);
+void blitz_destroy_tile(BlitzTile *t);
 
 /* font.c */
 unsigned int blitz_textwidth(BlitzFont *font, char *text);
diff --git a/liblitz/widget.c b/liblitz/widget.c
new file mode 100644
index 00000000..ff8c1647
--- /dev/null
+++ b/liblitz/widget.c
@@ -0,0 +1,28 @@
+/*
+ * (C)opyright MMIV-MMVI Anselm R. Garbe <garbeam at gmail dot com>
+ * See LICENSE file for license details.
+ */
+
+#include <stdlib.h>
+
+#include <cext.h>
+
+#include "blitz.h"
+
+void
+blitz_add_widget(BlitzWidget *w)
+{
+	BlitzWidget **wp;
+	for(wp = &__blitz.widgets; *wp; wp = &(*wp)->next);
+	w->next = nil;
+	*wp = w;
+}
+
+void
+blitz_rm_widget(BlitzWidget *w)
+{
+	BlitzWidget **wp;
+	for(wp = &__blitz.widgets; *wp && *wp != w; wp = &(*wp)->next);
+	cext_assert(*wp == w);
+	*wp = w->next;
+}