moving trunk for module inkscape

(bzr r1)

1 files changed, 99 insertions, 0 deletions

diff --git a/src/draw-anchor.cpp b/src/draw-anchor.cpp
new file mode 100644
index 000000000..2a3279075
--- /dev/null
+++ b/src/draw-anchor.cpp
@@ -0,0 +1,99 @@
+/** \file 
+ * Anchors implementation.
+ */
+
+/*
+ * Authors:
+ * Copyright (C) 2000 Lauris Kaplinski
+ * Copyright (C) 2000-2001 Ximian, Inc.
+ * Copyright (C) 2002 Lauris Kaplinski
+ * Copyright (C) 2004 Monash University
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+
+#include "draw-anchor.h"
+#include "desktop.h"
+#include "desktop-handles.h"
+#include "event-context.h"
+#include "display/sodipodi-ctrl.h"
+
+/**
+ * Creates an anchor object and initializes it.
+ */
+SPDrawAnchor *
+sp_draw_anchor_new(SPDrawContext *dc, SPCurve *curve, gboolean start, NR::Point delta)
+{
+    SPDesktop *dt = SP_EVENT_CONTEXT_DESKTOP(dc);
+
+    SPDrawAnchor *a = g_new(SPDrawAnchor, 1);
+
+    a->dc = dc;
+    a->curve = curve;
+    a->start = start;
+    a->active = FALSE;
+    a->dp = delta;
+    a->ctrl = sp_canvas_item_new(SP_DT_CONTROLS(dt), SP_TYPE_CTRL,
+                                 "size", 6.0,
+                                 "filled", 0,
+                                 "fill_color", 0xff00007f,
+                                 "stroked", 1,
+                                 "stroke_color", 0x000000ff,
+                                 NULL);
+
+    SP_CTRL(a->ctrl)->moveto(delta);
+
+    return a;
+}
+
+/**
+ * Destroys the anchor's canvas item and frees the anchor object.
+ */
+SPDrawAnchor *
+sp_draw_anchor_destroy(SPDrawAnchor *anchor)
+{
+    if (anchor->ctrl) {
+        gtk_object_destroy(GTK_OBJECT(anchor->ctrl));
+    }
+    g_free(anchor);
+    return NULL;
+}
+
+#define A_SNAP 4.0
+
+/**
+ * Test if point is near anchor, if so fill anchor on canvas and return 
+ * pointer to it or NULL.
+ */
+SPDrawAnchor *
+sp_draw_anchor_test(SPDrawAnchor *anchor, NR::Point w, gboolean activate)
+{
+    SPDesktop *dt = SP_EVENT_CONTEXT_DESKTOP(anchor->dc);
+
+    if ( activate && ( NR::LInfty( w - dt->d2w(anchor->dp) ) <= A_SNAP ) ) {
+        if (!anchor->active) {
+            sp_canvas_item_set((GtkObject *) anchor->ctrl, "filled", TRUE, NULL);
+            anchor->active = TRUE;
+        }
+        return anchor;
+    }
+
+    if (anchor->active) {
+        sp_canvas_item_set((GtkObject *) anchor->ctrl, "filled", FALSE, NULL);
+        anchor->active = FALSE;
+    }
+    return NULL;
+}
+
+
+/*
+  Local Variables:
+  mode:c++
+  c-file-style:"stroustrup"
+  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+  indent-tabs-mode:nil
+  fill-column:99
+  End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :