From 0d638c2e572a7e5177506e6290842bc43b0a0426 Mon Sep 17 00:00:00 2001
From: Sam Hocevar <sam@hocevar.net>
Date: Wed, 24 Dec 2003 15:35:07 +0000
Subject: [PATCH]   * src/io.c:     + Mouse support in the X11 driver.

---
 src/caca_internals.h |  1 +
 src/graphics.c       |  6 ++++--
 src/io.c             | 30 +++++++++++++++++++++++++++++-
 3 files changed, 34 insertions(+), 3 deletions(-)

diff --git a/src/caca_internals.h b/src/caca_internals.h
index 36719d8..6df5d91 100644
--- a/src/caca_internals.h
+++ b/src/caca_internals.h
@@ -67,6 +67,7 @@ extern enum caca_feature _caca_antialiasing;
 #include <X11/Xlib.h>
 extern Display *x11_dpy;
 extern Window x11_window;
+extern int x11_font_width, x11_font_height;
 #endif
 
 #endif /* __CACA_INTERNALS_H__ */
diff --git a/src/graphics.c b/src/graphics.c
index a59425f..132d3e9 100644
--- a/src/graphics.c
+++ b/src/graphics.c
@@ -81,13 +81,14 @@ static char *conio_screen;
 #if defined(USE_X11)
 Display *x11_dpy;
 Window x11_window;
+int x11_font_width, x11_font_height;
 static GC x11_gc;
 static Pixmap x11_pixmap;
 static int *x11_screen;
 static int x11_colors[16];
 static Font x11_font;
 static XFontStruct *x11_font_struct;
-static int x11_font_width, x11_font_height, x11_font_offset;
+static int x11_font_offset;
 #endif
 
 static char *_caca_empty_line;
@@ -604,7 +605,8 @@ int _caca_init_graphics(void)
                 break;
         }
 
-        XSelectInput(x11_dpy, x11_window, KeyPressMask);
+        XSelectInput(x11_dpy, x11_window,
+                     KeyPressMask | ButtonPressMask | PointerMotionMask);
 
         XSync(x11_dpy, False);
 
diff --git a/src/io.c b/src/io.c
index 720134b..56caf0f 100644
--- a/src/io.c
+++ b/src/io.c
@@ -128,6 +128,11 @@ unsigned int caca_get_event(void)
     }
 #endif
 
+    /* If it's already a special event, return it */
+    if((keybuf[0] & ~0xff) != 0)
+        return _pop_key();
+
+    /* If it's not an escape sequence, return the key */
     if(keybuf[0] != '\x1b')
         return CACA_EVENT_KEY_PRESS | _pop_key();
 
@@ -247,6 +252,8 @@ static unsigned int _read_key(void)
 #endif
 #if defined(USE_X11)
     XEvent event;
+    static int x11_x = 0, x11_y = 0;
+    long int event_mask = KeyPressMask | ButtonPressMask | PointerMotionMask;
     char key;
 #endif
 
@@ -267,11 +274,32 @@ static unsigned int _read_key(void)
 #endif
 #if defined(USE_X11)
     case CACA_DRIVER_X11:
-        while(XCheckWindowEvent(x11_dpy, x11_window, KeyPressMask, &event)
+        while(XCheckWindowEvent(x11_dpy, x11_window, event_mask, &event)
                == True)
         {
             KeySym keysym;
 
+            if(event.type == MotionNotify)
+            {
+                x11_x = event.xmotion.x;
+                x11_y = event.xmotion.y;
+                continue;
+            }
+
+            if(event.type == ButtonPress)
+            {
+                unsigned int x = x11_x / x11_font_width;
+                unsigned int y = x11_y / x11_font_height;
+
+                if(x >= _caca_width)
+                    x = _caca_width - 1;
+                if(y >= _caca_height)
+                    y = _caca_height - 1;
+
+                return CACA_EVENT_MOUSE_CLICK
+                        | (1 << 16) | (x << 8) | (y << 0);
+            }
+
             if(event.type != KeyPress)
                 continue;