Add dispatch stuff to manage timeouts, workprocs and files. Remove thread

    stuff
Split demos into separate files
Make drawing origin match clip rectangle.
twin_fedit Add glyph editor to CVS to preserve it
Add scalable icons
Separate 'closing' a subpath from 'finishing' a subpath; the former adds a
    point back to the start while the latter just leaves the path unclosed
    and prepares for a new subpath.
Eliminate locking, add clipping.
Clean up title drawing, use clipping
Eliminate locking, use dispatch stuff

1 files changed, 184 insertions, 0 deletions

diff --git a/twin_icon.c b/twin_icon.c
new file mode 100644
index 0000000..b6579b2
--- /dev/null
+++ b/twin_icon.c
@@ -0,0 +1,184 @@
+/*
+ * $Id$
+ *
+ * Copyright © 2004 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of Keith Packard not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission.  Keith Packard makes no
+ * representations about the suitability of this software for any purpose.  It
+ * is provided "as is" without express or implied warranty.
+ *
+ * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "twinint.h"
+
+#define G(d)	((signed char) ((d) * 64))
+
+#define ICON_THIN   (1.0/20.0)
+
+#define L(v)	    G(v + ICON_THIN/2)
+#define T(v)	    G(v + ICON_THIN/2)
+#define R(v)	    G(v - ICON_THIN/2)
+#define B(v)	    G(v - ICON_THIN/2)
+const signed char _twin_itable[] = {
+    /* Menu */
+#define TWIN_MENU_POS	    0
+    'm', L(0), T(0),
+    'd', R(1), T(0),
+    'd', R(1), B(1),
+    'd', L(0), B(1),
+    'x',
+    's',
+    'm', G(0.2), G(0.2),
+    'd', G(0.8), G(0.2),
+    's',
+    'm', G(0.2), G(0.4),
+    'd', G(0.8), G(0.4),
+    's',
+    'm', G(0.2), G(0.6),
+    'd', G(0.8), G(0.6),
+    's',
+    'm', G(0.2), G(0.8),
+    'd', G(0.8), G(0.8),
+    's',
+    'e',
+#define TWIN_MENU_LEN	    43
+    /* Minimize */
+#define TWIN_MINIMIZE_POS   TWIN_MENU_POS + TWIN_MENU_LEN
+    'm', L(0), G(0.8),
+    'd', L(0), B(1),
+    'd', R(1), B(1),
+    'd', R(1), G(0.8),
+    'x',
+    'w', G(0.05),
+    'p',
+    'e',
+#define TWIN_MINIMIZE_LEN   17
+    /* Maximize */
+#define TWIN_MAXIMIZE_POS   TWIN_MINIMIZE_POS + TWIN_MINIMIZE_LEN
+    'm', L(0), T(0),
+    'd', L(0), G(0.2),
+    'd', R(1), G(0.2),
+    'd', R(1), T(0),
+    'f',
+    'm', L(0), T(0),
+    'd', L(0), B(1),
+    'd', R(1), B(1),
+    'd', R(1), T(0),
+    'x',
+    's',
+    'e',
+#define TWIN_MAXIMIZE_LEN   28
+    /* Close */
+#define TWIN_CLOSE_POS	    TWIN_MAXIMIZE_POS + TWIN_MAXIMIZE_LEN
+    'm', L(0), T(0),
+    'd', L(0), T(0.1),
+    'd', G(0.4), G(0.5),
+    'd', L(0), B(0.9),
+    'd', L(0), B(1),
+    'd', L(0.1), B(1),
+    'd', G(0.5), G(0.6),
+    'd', R(0.9), B(1),
+    'd', R(1), B(1),
+    'd', R(1), B(0.9),
+    'd', G(0.6), G(0.5),
+    'd', R(1), T(0.1),
+    'd', R(1), T(0),
+    'd', R(0.9), T(0),
+    'd', G(0.5), G(0.4),
+    'd', L(0.1), T(0),
+    'x',
+    'p',
+    'e',
+#define TWIN_CLOSE_LEN	    51
+    /* Resize */
+#define TWIN_RESIZE_POS	    TWIN_CLOSE_POS + TWIN_CLOSE_LEN
+    'm', L(0), G(-0.8),
+    'd', L(0), T(0),
+    'd', G(-0.8), T(0),
+    'd', G(-0.8), G(0.2),
+    'd', G(0.2), G(0.2),
+    'd', G(0.2), G(-0.8),
+    'x',
+    'p',
+    'e',
+#define TWIN_RESIZE_LEN	    21
+};
+
+const uint16_t	_twin_icons[] = {
+    TWIN_MENU_POS, 
+    TWIN_MINIMIZE_POS,
+    TWIN_MAXIMIZE_POS,
+    TWIN_CLOSE_POS,
+    TWIN_RESIZE_POS,
+};
+    
+#define V(i)	(g[i] << 10)
+
+#define TWIN_ICON_FILL	    0xff808080
+#define TWIN_ICON_STROKE    0xff202020
+
+void
+twin_icon_draw (twin_pixmap_t *pixmap,
+		twin_icon_t icon,
+		twin_matrix_t matrix)
+{
+    twin_path_t		*path = twin_path_create ();
+    const signed char	*g = _twin_itable + _twin_icons[icon];
+    twin_fixed_t	stroke_width = twin_double_to_fixed (ICON_THIN);
+
+    twin_path_set_matrix (path, matrix);
+    for (;;)
+    {
+	switch (*g++) {
+	case 'm': 
+	    twin_path_move (path, V(0), V(1)); 
+	    g += 2; 
+	    continue;
+	case 'd': 
+	    twin_path_draw (path, V(0), V(1)); 
+	    g += 2; 
+	    continue;
+	case 'c':
+	    twin_path_curve (path, V(0), V(1), V(2), V(3), V(4), V(5));
+	    g += 6;
+	    continue;
+	case 'x':
+	    twin_path_close (path);
+	    continue;
+	case 'w':
+	    stroke_width = V(0); 
+	    g+= 1; 
+	    continue;
+	case 'f':   
+	    twin_paint_path (pixmap, TWIN_ICON_FILL, path);
+	    twin_path_empty (path);
+	    continue;
+	case 's':
+	    twin_paint_stroke (pixmap, TWIN_ICON_STROKE, path, stroke_width);
+	    twin_path_empty (path);
+	    continue;
+	case 'p':
+	    twin_paint_path (pixmap, TWIN_ICON_FILL, path);
+	    twin_paint_stroke (pixmap, TWIN_ICON_STROKE, path, stroke_width);
+	    twin_path_empty (path);
+	    continue;
+	case 'e':
+	    break;
+	}
+	break;
+    }
+    twin_path_destroy (path);
+}