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src/theme.c

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+/* Metacity Default Theme Engine */
+
+/* 
+ * Copyright (C) 2001 Havoc Pennington
+ * 
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
+
+#include "theme.h"
+#include <pango.h>
+#include <pangox.h>
+
+typedef struct _DefaultFrameData DefaultFrameData;
+
+struct _DefaultFrameData
+{
+  PangoLayout *layout;
+
+
+};
+
+static gpointer
+default_acquire_frame (MetaFrameInfo *info)
+{
+  DefaultFrameData *d;
+
+  d = g_new (DefaultFrameData, 1);
+
+  d->layout = NULL;
+  
+  return d;
+}
+
+void
+default_release_frame (MetaFrameInfo *info,
+                       gpointer       frame_data)
+{
+  DefaultFrameData *d;
+
+  d = frame_data;
+
+  if (d->layout)
+    g_object_unref (G_OBJECT (d->layout));
+
+  g_free (d);
+}
+
+void
+default_fill_frame_geometry (MetaFrameInfo *info,
+                             gpointer       frame_data)
+{
+
+
+}
+
+void
+default_expose_frame (MetaFrameInfo *info,
+                      int x, int y,
+                      int width, int height,
+                      gpointer frame_data)
+{
+
+
+}
+
+MetaFrameControl
+default_get_control (MetaFrameInfo *info,
+                     int x, int y,
+                     gpointer frame_data)
+{
+
+
+}
+
+MetaThemeEngine meta_default_engine = {
+  NULL,
+  default_acquire_frame,
+  default_release_frame,
+  default_fill_frame_geometry,
+  default_expose_frame,
+  default_get_control
+};
+
+#endif

src/theme.h

@@ -0,0 +1,117 @@
+/* Metacity Theme Engine Header */
+
+/* 
+ * Copyright (C) 2001 Havoc Pennington
+ * 
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
+
+#ifndef META_THEME_H
+#define META_THEME_H
+
+#include <Xlib.h>
+
+typedef struct _MetaFrameInfo       MetaFrameInfo;
+typedef struct _MetaThemeEngine     MetaThemeEngine;
+
+typedef enum
+{
+  META_FRAME_ALLOWS_DELETE    = 1 << 0,
+  META_FRAME_ALLOWS_MENU      = 1 << 1,
+  META_FRAME_ALLOWS_ICONIFY   = 1 << 2,
+  META_FRAME_ALLOWS_MAXIMIZE  = 1 << 3, 
+  META_FRAME_ALLOWS_RESIZE    = 1 << 4,
+  META_FRAME_TRANSIENT        = 1 << 5
+} MetaFrameFlags;
+
+typedef enum
+{
+  META_FRAME_CONTROL_DELETE,
+  META_FRAME_CONTROL_MENU,
+  META_FRAME_CONTROL_ICONIFY,
+  META_FRAME_CONTROL_MAXIMIZE,
+  META_FRAME_CONTROL_RESIZE_SE,
+  META_FRAME_CONTROL_RESIZE_S,
+  META_FRAME_CONTROL_RESIZE_SW,
+  META_FRAME_CONTROL_RESIZE_N,
+  META_FRAME_CONTROL_RESIZE_NE,
+  META_FRAME_CONTROL_RESIZE_NW,
+  META_FRAME_CONTROL_RESIZE_W,
+  META_FRAME_CONTROL_RESIZE_E
+} MetaFrameControl;
+
+struct _MetaFrameInfo
+{
+  /* These are read-only to engines */
+  MetaFrameFlags flags;
+  Window xwindow; /* == None in fill_frame_geometry */
+  Display *display;
+  Visual *visual;
+  int depth;
+  Colormap cmap;
+
+  char *title;
+  
+  /* total frame size normally, but equal to child size in
+   * fill_frame_geometry
+   */
+  int width;
+  int height;
+  
+  /* Below here the engine can change things
+   * in fill_frame_geometry, though defaults are already
+   * filled in.
+   */
+  
+  /* border sizes (space between frame and child) */
+  int left_width;
+  int right_width;
+  int top_height;
+  int bottom_height;
+
+  /* background color */
+  unsigned long background_pixel;
+
+  Pixmap shape_mask;
+  /* FIXME shape region */
+};
+
+struct _MetaThemeEngine
+{
+  void             (* unload_engine)       (void);
+  
+  /* returns frame_data to use */
+  gpointer         (* acquire_frame)       (MetaFrameInfo *info);
+  /* should free frame_data */
+  void             (* release_frame)       (MetaFrameInfo *info,
+                                            gpointer       frame_data);
+  
+  void             (* fill_frame_geometry) (MetaFrameInfo *info,
+                                            gpointer       frame_data);
+
+  void             (* expose_frame)        (MetaFrameInfo *info,
+                                            int x, int y,
+                                            int width, int height,
+                                            gpointer frame_data);
+
+  MetaFrameControl (* get_control)         (MetaFrameInfo *info,
+                                            int x, int y,
+                                            gpointer frame_data);
+};
+
+extern MetaThemeEngine meta_default_engine;
+
+#endif