From 623988791364290cf33fc22604e9eb7d14884e0f Mon Sep 17 00:00:00 2001
From: Jean-Yves Lamoureux <jylam@lnxscene.org>
Date: Fri, 24 Mar 2006 15:00:47 +0000
Subject: [PATCH]  * Added caca_show/hide_cursor, and corresponding GL binding

---
 caca/caca.h           |  2 ++
 caca/caca_internals.h |  2 ++
 caca/driver_conio.c   |  2 ++
 caca/driver_gl.c      | 16 +++++++++++++++-
 caca/driver_ncurses.c |  3 ++-
 caca/driver_network.c |  2 ++
 caca/driver_slang.c   |  2 ++
 caca/driver_vga.c     |  2 ++
 caca/driver_win32.c   |  2 ++
 caca/graphics.c       | 23 +++++++++++++++++++++++
 10 files changed, 54 insertions(+), 2 deletions(-)

diff --git a/caca/caca.h b/caca/caca.h
index a559386..4beeab2 100644
--- a/caca/caca.h
+++ b/caca/caca.h
@@ -244,6 +244,8 @@ int caca_get_event(caca_t *kk, unsigned int, struct caca_event *);
 int caca_wait_event(caca_t *kk, unsigned int, struct caca_event *);
 unsigned int caca_get_mouse_x(caca_t *kk);
 unsigned int caca_get_mouse_y(caca_t *kk);
+void caca_hide_cursor(caca_t *kk);
+void caca_show_cursor(caca_t *kk);
 /*  @} */
 
 #ifdef __cplusplus
diff --git a/caca/caca_internals.h b/caca/caca_internals.h
index 91a137a..16d16e8 100644
--- a/caca/caca_internals.h
+++ b/caca/caca_internals.h
@@ -117,6 +117,8 @@ struct caca_context
         void (* display) (caca_t *);
         void (* handle_resize) (caca_t *);
         int (* get_event) (caca_t *, struct caca_event *);
+	void (* show_cursor) (caca_t *);
+	void (* hide_cursor) (caca_t *);
     } drv;
 
     /* Mouse position */
diff --git a/caca/driver_conio.c b/caca/driver_conio.c
index b981a11..6b55965 100644
--- a/caca/driver_conio.c
+++ b/caca/driver_conio.c
@@ -163,6 +163,8 @@ int conio_install(caca_t *kk)
     kk->drv.display = conio_display;
     kk->drv.handle_resize = conio_handle_resize;
     kk->drv.get_event = conio_get_event;
+    kk->drv.show_cursor = NULL;
+    kk->drv.hide_cursor = NULL;
 
     return 0;
 }
diff --git a/caca/driver_gl.c b/caca/driver_gl.c
index 716291b..9bf286a 100644
--- a/caca/driver_gl.c
+++ b/caca/driver_gl.c
@@ -386,6 +386,19 @@ static int gl_get_event(caca_t *kk, struct caca_event *ev)
     return 0;
 }
 
+
+static void gl_show_cursor(caca_t *kk)
+{
+    glutSetCursor(GLUT_CURSOR_RIGHT_ARROW);
+}
+
+static void gl_hide_cursor(caca_t *kk)
+{
+    glutSetCursor(GLUT_CURSOR_NONE);
+}
+
+
+
 /*
  * XXX: following functions are local
  */
@@ -464,7 +477,8 @@ int gl_install(caca_t *kk)
     kk->drv.display = gl_display;
     kk->drv.handle_resize = gl_handle_resize;
     kk->drv.get_event = gl_get_event;
-
+    kk->drv.show_cursor = gl_show_cursor;
+    kk->drv.hide_cursor = gl_hide_cursor;
     return 0;
 }
 
diff --git a/caca/driver_ncurses.c b/caca/driver_ncurses.c
index 7a49bd5..44c30bd 100644
--- a/caca/driver_ncurses.c
+++ b/caca/driver_ncurses.c
@@ -542,7 +542,8 @@ int ncurses_install(caca_t *kk)
     kk->drv.display = ncurses_display;
     kk->drv.handle_resize = ncurses_handle_resize;
     kk->drv.get_event = ncurses_get_event;
-
+    kk->drv.show_cursor = NULL;
+    kk->drv.hide_cursor = NULL;
     return 0;
 }
 
diff --git a/caca/driver_network.c b/caca/driver_network.c
index 4cdfbc6..726badd 100644
--- a/caca/driver_network.c
+++ b/caca/driver_network.c
@@ -562,6 +562,8 @@ int network_install(caca_t *kk)
     kk->drv.display = network_display;
     kk->drv.handle_resize = network_handle_resize;
     kk->drv.get_event = network_get_event;
+    kk->drv.show_cursor = NULL;
+    kk->drv.hide_cursor = NULL;
 
     return 0;
 }
diff --git a/caca/driver_slang.c b/caca/driver_slang.c
index c8293d8..a72de12 100644
--- a/caca/driver_slang.c
+++ b/caca/driver_slang.c
@@ -480,6 +480,8 @@ int slang_install(caca_t *kk)
     kk->drv.display = slang_display;
     kk->drv.handle_resize = slang_handle_resize;
     kk->drv.get_event = slang_get_event;
+    kk->drv.show_cursor = NULL;
+    kk->drv.hide_cursor = NULL;
 
     return 0;
 }
diff --git a/caca/driver_vga.c b/caca/driver_vga.c
index 45bcb07..a6d4335 100644
--- a/caca/driver_vga.c
+++ b/caca/driver_vga.c
@@ -157,6 +157,8 @@ int vga_install(caca_t *kk)
     kk->drv.display = vga_display;
     kk->drv.handle_resize = vga_handle_resize;
     kk->drv.get_event = vga_get_event;
+    kk->drv.show_cursor = NULL;
+    kk->drv.hide_cursor = NULL;
 
     return 0;
 }
diff --git a/caca/driver_win32.c b/caca/driver_win32.c
index 58ddba9..d141e1c 100644
--- a/caca/driver_win32.c
+++ b/caca/driver_win32.c
@@ -345,6 +345,8 @@ int win32_install(caca_t *kk)
     kk->drv.display = win32_display;
     kk->drv.handle_resize = win32_handle_resize;
     kk->drv.get_event = win32_get_event;
+    kk->drv.show_cursor = NULL;
+    kk->drv.hide_cursor = NULL;
 
     return 0;
 }
diff --git a/caca/graphics.c b/caca/graphics.c
index c198057..4a25d5a 100644
--- a/caca/graphics.c
+++ b/caca/graphics.c
@@ -143,6 +143,29 @@ void caca_display(caca_t *kk)
         kk->lastticks = 0;
 }
 
+/** \brief Show cursor on capable drivers
+ *
+ *  This function shows the cursor on drivers permitting it.
+ *
+ */
+void caca_show_cursor(caca_t *kk)
+{
+    if(kk->drv.show_cursor)
+	kk->drv.show_cursor(kk);
+}
+
+/** \brief Hide cursor on capable drivers
+ *
+ *  This function hides the cursor on drivers permitting it.
+ *
+ */
+void caca_hide_cursor(caca_t *kk)
+{
+    if(kk->drv.show_cursor)
+	kk->drv.show_cursor(kk);
+}
+
+
 /*
  * XXX: following functions are local
  */