2.5 / Nodes

* Operator to toggle node visibility (hide/unhide)

1 files changed, 194 insertions, 0 deletions

diff --git a/source/blender/editors/space_node/node_state.c b/source/blender/editors/space_node/node_state.c
new file mode 100644
index 00000000000..fdd1bcf1073
--- /dev/null
+++ b/source/blender/editors/space_node/node_state.c
@@ -0,0 +1,194 @@
+/**
+ * $Id:
+ *
+ * ***** 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ * The Original Code is Copyright (C) 2008 Blender Foundation.
+ * All rights reserved.
+ *
+ * 
+ * Contributor(s): Blender Foundation, Nathan Letwory
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+#include <stdio.h>
+
+#include "DNA_node_types.h"
+#include "DNA_scene_types.h"
+#include "DNA_screen_types.h"
+#include "DNA_space_types.h"
+
+#include "BKE_context.h"
+#include "BKE_node.h"
+#include "BKE_global.h"
+
+#include "BLI_rect.h"
+
+#include "ED_space_api.h"
+#include "ED_screen.h"
+#include "ED_types.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"
+
+
+static int do_header_node(SpaceNode *snode, bNode *node, float mx, float my)
+{
+	rctf totr= node->totr;
+	
+	totr.ymin= totr.ymax-20.0f;
+	
+	totr.xmax= totr.xmin+15.0f;
+	if(BLI_in_rctf(&totr, mx, my)) {
+		node->flag |= NODE_HIDDEN;
+		return 1;
+	}	
+	
+	totr.xmax= node->totr.xmax;
+	totr.xmin= totr.xmax-18.0f;
+	if(node->typeinfo->flag & NODE_PREVIEW) {
+		if(BLI_in_rctf(&totr, mx, my)) {
+			node->flag ^= NODE_PREVIEW;
+			return 1;
+		}
+		totr.xmin-=18.0f;
+	}
+	if(node->type == NODE_GROUP) {
+		if(BLI_in_rctf(&totr, mx, my)) {
+			snode_make_group_editable(snode, node);
+			return 1;
+		}
+		totr.xmin-=18.0f;
+	}
+	if(node->typeinfo->flag & NODE_OPTIONS) {
+		if(BLI_in_rctf(&totr, mx, my)) {
+			node->flag ^= NODE_OPTIONS;
+			return 1;
+		}
+		totr.xmin-=18.0f;
+	}
+	/* hide unused sockets */
+	if(BLI_in_rctf(&totr, mx, my)) {
+		// XXX node_hide_unhide_sockets(snode, node);
+	}
+	
+	
+	totr= node->totr;
+	totr.xmin= totr.xmax-10.0f;
+	totr.ymax= totr.ymin+10.0f;
+	if(BLI_in_rctf(&totr, mx, my)) {
+		// XXX scale_node(snode, node);
+		return 1;
+	}
+	return 0;
+}
+
+static int do_header_hidden_node(SpaceNode *snode, bNode *node, float mx, float my)
+{
+	rctf totr= node->totr;
+	
+	totr.xmax= totr.xmin+15.0f;
+	if(BLI_in_rctf(&totr, mx, my)) {
+		node->flag &= ~NODE_HIDDEN;
+		return 1;
+	}	
+	
+	totr.xmax= node->totr.xmax;
+	totr.xmin= node->totr.xmax-15.0f;
+	if(BLI_in_rctf(&totr, mx, my)) {
+		scale_node(snode, node);
+		return 1;
+	}
+	return 0;
+}
+
+static void node_toggle_visibility(SpaceNode *snode, ARegion *ar, short *mval)
+{
+	bNode *node;
+	float mx, my;
+	
+	mx= (float)mval[0];
+	my= (float)mval[1];
+	
+	UI_view2d_region_to_view(&ar->v2d, mval[0], mval[1], &mx, &my);
+	
+	for(next_node(snode->edittree); (node=next_node(NULL));) {
+		if(node->flag & NODE_HIDDEN) {
+			if(do_header_hidden_node(snode, node, mx, my)) {
+				ED_region_tag_redraw(ar);
+				break;
+			}
+		}
+		else {
+			if(do_header_node(snode, node, mx, my)) {
+				ED_region_tag_redraw(ar);
+				break;
+			}
+		}
+	}
+}
+
+static int node_toggle_visibility_exec(bContext *C, wmOperator *op)
+{
+	SpaceNode *snode= (SpaceNode*)CTX_wm_space_data(C);
+	ARegion *ar= CTX_wm_region(C);
+	short mval[2];
+
+	mval[0] = RNA_int_get(op->ptr, "mx");
+	mval[1] = RNA_int_get(op->ptr, "my");
+	node_toggle_visibility(snode, ar, mval);
+
+	return OPERATOR_FINISHED;
+}
+
+static int node_toggle_visibility_invoke(bContext *C, wmOperator *op, wmEvent *event)
+{
+	ARegion *ar= CTX_wm_region(C);
+	short mval[2];	
+	
+	mval[0]= event->x - ar->winrct.xmin;
+	mval[1]= event->y - ar->winrct.ymin;
+	
+	RNA_int_set(op->ptr, "mx", mval[0]);
+	RNA_int_set(op->ptr, "my", mval[1]);
+
+	return node_toggle_visibility_exec(C,op);
+}
+
+void NODE_OT_toggle_visibility(wmOperatorType *ot)
+{
+	PropertyRNA *prop;
+	
+	/* identifiers */
+	ot->name= "Toggle Visibility";
+	ot->idname= "NODE_OT_toggle_visibility";
+	
+	/* api callbacks */
+	ot->invoke= node_toggle_visibility_invoke;
+	ot->poll= ED_operator_node_active;
+	
+	prop = RNA_def_property(ot->srna, "mx", PROP_INT, PROP_NONE);
+	prop = RNA_def_property(ot->srna, "my", PROP_INT, PROP_NONE);
+}