rename node_state.c --> node_view.c

1 files changed, 132 insertions, 0 deletions

diff --git a/source/blender/editors/space_node/node_view.c b/source/blender/editors/space_node/node_view.c
new file mode 100644
index 00000000000..b9fb812dc04
--- /dev/null
+++ b/source/blender/editors/space_node/node_view.c
@@ -0,0 +1,132 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2008 Blender Foundation.
+ * All rights reserved.
+ *
+ * 
+ * Contributor(s): Blender Foundation, Nathan Letwory
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file blender/editors/space_node/node_view.c
+ *  \ingroup spnode
+ */
+
+#include <stdio.h>
+
+#include "DNA_node_types.h"
+#include "DNA_scene_types.h"
+
+#include "BLI_rect.h"
+#include "BLI_utildefines.h"
+
+#include "BKE_context.h"
+#include "BKE_node.h"
+
+#include "ED_screen.h"
+
+#include "RNA_access.h"
+#include "RNA_define.h"
+
+#include "WM_api.h"
+#include "WM_types.h"
+
+#include "UI_view2d.h"
+ 
+#include "node_intern.h"
+
+
+/* **************** View All Operator ************** */
+
+static void snode_home(ScrArea *UNUSED(sa), ARegion *ar, SpaceNode* snode)
+{
+	bNode *node;
+	rctf *cur;
+	float oldwidth, oldheight, width, height;
+	int first= 1;
+	
+	cur= &ar->v2d.cur;
+	
+	oldwidth= cur->xmax - cur->xmin;
+	oldheight= cur->ymax - cur->ymin;
+	
+	cur->xmin = cur->ymin = 0.0f;
+	cur->xmax=ar->winx;
+	cur->ymax=ar->winy;
+	
+	if (snode->edittree) {
+		for (node= snode->edittree->nodes.first; node; node= node->next) {
+			if (first) {
+				first= 0;
+				ar->v2d.cur= node->totr;
+			}
+			else {
+				BLI_rctf_union(cur, &node->totr);
+			}
+		}
+	}
+	
+	snode->xof= 0;
+	snode->yof= 0;
+	width= cur->xmax - cur->xmin;
+	height= cur->ymax- cur->ymin;
+
+	if (width > height) {
+		float newheight;
+		newheight= oldheight * width/oldwidth;
+		cur->ymin = cur->ymin - newheight/4;
+		cur->ymax = cur->ymax + newheight/4;
+	}
+	else {
+		float newwidth;
+		newwidth= oldwidth * height/oldheight;
+		cur->xmin = cur->xmin - newwidth/4;
+		cur->xmax = cur->xmax + newwidth/4;
+	}
+
+	ar->v2d.tot= ar->v2d.cur;
+	UI_view2d_curRect_validate(&ar->v2d);
+}
+
+static int node_view_all_exec(bContext *C, wmOperator *UNUSED(op))
+{
+	ScrArea *sa= CTX_wm_area(C);
+	ARegion *ar= CTX_wm_region(C);
+	SpaceNode *snode= CTX_wm_space_node(C);
+	
+	snode_home(sa, ar, snode);
+	ED_region_tag_redraw(ar);
+	
+	return OPERATOR_FINISHED;
+}
+
+void NODE_OT_view_all(wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name = "View All";
+	ot->idname = "NODE_OT_view_all";
+	ot->description = "Resize view so you can see all nodes";
+	
+	/* api callbacks */
+	ot->exec = node_view_all_exec;
+	ot->poll = ED_operator_node_active;
+	
+	/* flags */
+	ot->flag = OPTYPE_REGISTER|OPTYPE_UNDO;
+}