add resizerelative action

[chaz/openbox] / openbox / actions / resizerelative.c

diff --git a/openbox/actions/resizerelative.c b/openbox/actions/resizerelative.c
new file mode 100644 (file)
index 0000000..1aefb51
--- /dev/null
+++ b/openbox/actions/resizerelative.c
@@ -0,0 +1,85 @@
+#include "openbox/actions.h"
+#include "openbox/client.h"
+#include "openbox/screen.h"
+#include "openbox/frame.h"
+#include <stdlib.h> /* for atoi */
+
+typedef struct {
+    gint left;
+    gint right;
+    gint top;
+    gint bottom;
+} Options;
+
+static gpointer setup_func(ObParseInst *i, xmlDocPtr doc, xmlNodePtr node);
+static void     free_func(gpointer options);
+static gboolean run_func(ObActionsData *data, gpointer options);
+
+void action_resizerelative_startup()
+{
+    actions_register("ResizeRelative",
+                     setup_func,
+                     free_func,
+                     run_func,
+                     NULL, NULL);
+}
+
+static gpointer setup_func(ObParseInst *i, xmlDocPtr doc, xmlNodePtr node)
+{
+    xmlNodePtr n;
+    Options *o;
+
+    o = g_new0(Options, 1);
+
+    if ((n = parse_find_node("left", node)))
+        o->left = parse_int(doc, n);
+    if ((n = parse_find_node("right", node)))
+        o->right = parse_int(doc, n);
+    if ((n = parse_find_node("top", node)))
+        o->top = parse_int(doc, n);
+    if ((n = parse_find_node("bottom", node)))
+        o->bottom = parse_int(doc, n);
+
+    return o;
+}
+
+static void free_func(gpointer options)
+{
+    Options *o = options;
+
+    g_free(o);
+}
+
+/* Always return FALSE because its not interactive */
+static gboolean run_func(ObActionsData *data, gpointer options)
+{
+    Options *o = options;
+
+    if (data->client) {
+        ObClient *c = data->client;
+        gint x, y, ow, xoff, nw, oh, yoff, nh, lw, lh;
+
+        x = c->area.x;
+        y = c->area.y;
+        ow = c->area.width;
+        xoff = -o->left * c->size_inc.width;
+        nw = ow + o->right * c->size_inc.width
+            + o->left * c->size_inc.width;
+        oh = c->area.height;
+        yoff = -o->top * c->size_inc.height;
+        nh = oh + o->bottom * c->size_inc.height
+            + o->top * c->size_inc.height;
+
+        client_try_configure(c, &x, &y, &nw, &nh, &lw, &lh, TRUE);
+        xoff = xoff == 0 ? 0 :
+            (xoff < 0 ? MAX(xoff, ow-nw) : MIN(xoff, ow-nw));
+        yoff = yoff == 0 ? 0 :
+            (yoff < 0 ? MAX(yoff, oh-nh) : MIN(yoff, oh-nh));
+
+        actions_client_move(data, FALSE);
+        client_move_resize(c, x + xoff, y + yoff, nw, nh);
+        actions_client_move(data, TRUE);
+    }
+
+    return FALSE;
+}