Commit: 840ec37b33bf4e8faa24e9b6ed732ee8d36ec560
Author: julianeisel
Date:   Fri Feb 6 15:45:12 2015 +0100
Branches: gooseberry
https://developer.blender.org/rB840ec37b33bf4e8faa24e9b6ed732ee8d36ec560

Graph Editor: Auto View

Auto View automatically adjusts the view based on selection, so that the view is
always focused on the current selection.
A checkbox in the header is used to access it and it works for the following
selection methods: Toggle All, Border, Circle, Lasso, Left, Right, More, Less,
Linked, Column (so all except of single selection, in which this can be a bit
annoying)

Reviewed by @Aligorith (thanks for that :) )

===================================================================

M       release/scripts/startup/bl_ui/space_graph.py
M       source/blender/editors/space_graph/graph_select.c
M       source/blender/makesdna/DNA_space_types.h
M       source/blender/makesrna/intern/rna_space.c

===================================================================

diff --git a/release/scripts/startup/bl_ui/space_graph.py 
b/release/scripts/startup/bl_ui/space_graph.py
index d3e1a86..50bbc3c 100644
--- a/release/scripts/startup/bl_ui/space_graph.py
+++ b/release/scripts/startup/bl_ui/space_graph.py
@@ -41,6 +41,8 @@ class GRAPH_HT_header(Header):
 
         dopesheet_filter(layout, context)
 
+        layout.prop(st, "use_auto_view", text="Auto View")
+
         layout.prop(st, "use_normalization", text="Normalize")
         row = layout.row()
         row.active = st.use_normalization
diff --git a/source/blender/editors/space_graph/graph_select.c 
b/source/blender/editors/space_graph/graph_select.c
index 78dbae7..136bcb6 100644
--- a/source/blender/editors/space_graph/graph_select.c
+++ b/source/blender/editors/space_graph/graph_select.c
@@ -66,6 +66,14 @@
 /* ************************************************************************** 
*/
 /* KEYFRAMES STUFF */
 
+static void graphkeys_auto_view(bContext *C)
+{
+       const SpaceIpo *sipo = CTX_wm_space_graph(C);
+
+       if (sipo && sipo->flag & SIPO_AUTOVIEW)
+               WM_operator_name_call(C, "GRAPH_OT_view_selected", 
WM_OP_INVOKE_DEFAULT, NULL);
+}
+
 /* ******************** Deselect All Operator ***************************** */
 /* This operator works in one of three ways:
  *     1) (de)select all (AKEY) - test if select all or deselect all
@@ -83,7 +91,7 @@
  *             2 = invert
  *     - do_channels: whether to affect selection status of channels
  */
-static void deselect_graph_keys(bAnimContext *ac, short test, short sel, short 
do_channels)
+static short deselect_graph_keys(bAnimContext *ac, short test, short sel, 
short do_channels)
 {
        ListBase anim_data = {NULL, NULL};
        bAnimListElem *ale;
@@ -142,6 +150,8 @@ static void deselect_graph_keys(bAnimContext *ac, short 
test, short sel, short d
        
        /* Cleanup */
        ANIM_animdata_freelist(&anim_data);
+       
+       return sel;
 }
 
 /* ------------------- */
@@ -150,6 +160,7 @@ static int graphkeys_deselectall_exec(bContext *C, 
wmOperator *op)
 {
        bAnimContext ac;
        bAnimListElem *ale_active = NULL;
+       short sel;
        
        /* get editor data */
        if (ANIM_animdata_get_context(C, &ac) == 0)
@@ -163,9 +174,9 @@ static int graphkeys_deselectall_exec(bContext *C, 
wmOperator *op)
        
        /* 'standard' behavior - check if selected, then apply relevant 
selection */
        if (RNA_boolean_get(op->ptr, "invert"))
-               deselect_graph_keys(&ac, 0, SELECT_INVERT, true);
+               sel = deselect_graph_keys(&ac, 0, SELECT_INVERT, true);
        else
-               deselect_graph_keys(&ac, 1, SELECT_ADD, true);
+               sel = deselect_graph_keys(&ac, 1, SELECT_ADD, true);
        
        /* restore active F-Curve... */
        if (ale_active) {
@@ -180,6 +191,9 @@ static int graphkeys_deselectall_exec(bContext *C, 
wmOperator *op)
                ale_active = NULL;
        }
        
+       if (sel != SELECT_SUBTRACT)
+               graphkeys_auto_view(C);
+       
        /* set notifier that things have changed */
        WM_event_add_notifier(C, NC_ANIMATION | ND_KEYFRAME | NA_SELECTED, 
NULL);
        
@@ -374,6 +388,8 @@ static int graphkeys_borderselect_exec(bContext *C, 
wmOperator *op)
        /* apply borderselect action */
        borderselect_graphkeys(&ac, &rect_fl, mode, selectmode, incl_handles, 
NULL);
        
+       graphkeys_auto_view(C);
+       
        /* send notifier that keyframe selection has changed */
        WM_event_add_notifier(C, NC_ANIMATION | ND_KEYFRAME | NA_SELECTED, 
NULL);
        
@@ -461,6 +477,8 @@ static int graphkeys_lassoselect_exec(bContext *C, 
wmOperator *op)
        MEM_freeN((void *)data_lasso.mcords);
 
 
+       graphkeys_auto_view(C);
+
        /* send notifier that keyframe selection has changed */
        WM_event_add_notifier(C, NC_ANIMATION | ND_KEYFRAME | NA_SELECTED, 
NULL);
 
@@ -491,6 +509,14 @@ void GRAPH_OT_select_lasso(wmOperatorType *ot)
        RNA_def_boolean(ot->srna, "extend", true, "Extend", "Extend selection 
instead of deselecting everything first");
 }
 
+static int graph_circle_select_modal(bContext *C, wmOperator *op, const 
wmEvent *event)
+{
+       if (event->type == EVT_MODAL_MAP && event->val == GESTURE_MODAL_NOP)
+               graphkeys_auto_view(C);
+
+       return WM_gesture_circle_modal(C, op, event);
+}
+
 static int graph_circle_select_exec(bContext *C, wmOperator *op)
 {
        bAnimContext ac;
@@ -552,7 +578,7 @@ void GRAPH_OT_select_circle(wmOperatorType *ot)
        ot->idname = "GRAPH_OT_select_circle";
        
        ot->invoke = WM_gesture_circle_invoke;
-       ot->modal = WM_gesture_circle_modal;
+       ot->modal = graph_circle_select_modal;
        ot->exec = graph_circle_select_exec;
        ot->poll = graphop_visible_keyframes_poll;
        ot->cancel = WM_gesture_circle_cancel;
@@ -725,6 +751,8 @@ static int graphkeys_columnselect_exec(bContext *C, 
wmOperator *op)
        else
                columnselect_graph_keys(&ac, mode);
        
+       graphkeys_auto_view(C);
+       
        /* set notifier that keyframe selection has changed */
        WM_event_add_notifier(C, NC_ANIMATION | ND_KEYFRAME | NA_SELECTED, 
NULL);
        
@@ -783,6 +811,8 @@ static int graphkeys_select_linked_exec(bContext *C, 
wmOperator *UNUSED(op))
        /* Cleanup */
        ANIM_animdata_freelist(&anim_data);
        
+       graphkeys_auto_view(C);
+       
        /* set notifier that keyframe selection has changed */
        WM_event_add_notifier(C, NC_ANIMATION | ND_KEYFRAME | NA_SELECTED, 
NULL);
        
@@ -807,12 +837,13 @@ void GRAPH_OT_select_linked(wmOperatorType *ot)
 /* ******************** Select More/Less Operators *********************** */
 
 /* Common code to perform selection */
-static void select_moreless_graph_keys(bAnimContext *ac, short mode)
+static void select_moreless_graph_keys(bContext *C, bAnimContext *ac, short 
mode)
 {
        ListBase anim_data = {NULL, NULL};
        bAnimListElem *ale;
        int filter;
        
+       const SpaceIpo *sipo = (SpaceIpo *)ac->sl;
        KeyframeEditData ked;
        KeyframeEditFunc build_cb;
        
@@ -842,6 +873,24 @@ static void select_moreless_graph_keys(bAnimContext *ac, 
short mode)
                /* free the selmap used here */
                MEM_freeN(ked.data);
                ked.data = NULL;
+               
+               /* only do auto view if a bezier point is selected */
+               if (sipo->flag & SIPO_AUTOVIEW) {
+                       const FCurve *fcu = (FCurve *)ale->key_data;
+                       const BezTriple *bezt;
+                       unsigned int i;
+
+                       /* only continue if F-Curve has keyframes */
+                       if (fcu->bezt == NULL)
+                               continue;
+
+                       for (bezt = fcu->bezt, i = 0; i < fcu->totvert; bezt++, 
i++) {
+                               if (BEZSELECTED(bezt)) {
+                                       graphkeys_auto_view(C);
+                                       break;
+                               }
+                       }
+               }
        }
        
        /* Cleanup */
@@ -859,7 +908,7 @@ static int graphkeys_select_more_exec(bContext *C, 
wmOperator *UNUSED(op))
                return OPERATOR_CANCELLED;
        
        /* perform select changes */
-       select_moreless_graph_keys(&ac, SELMAP_MORE);
+       select_moreless_graph_keys(C, &ac, SELMAP_MORE);
        
        /* set notifier that keyframe selection has changed */
        WM_event_add_notifier(C, NC_ANIMATION | ND_KEYFRAME | NA_SELECTED, 
NULL);
@@ -893,7 +942,7 @@ static int graphkeys_select_less_exec(bContext *C, 
wmOperator *UNUSED(op))
                return OPERATOR_CANCELLED;
        
        /* perform select changes */
-       select_moreless_graph_keys(&ac, SELMAP_LESS);
+       select_moreless_graph_keys(C, &ac, SELMAP_LESS);
        
        /* set notifier that keyframe selection has changed */
        WM_event_add_notifier(C, NC_ANIMATION | ND_KEYFRAME | NA_SELECTED, 
NULL);
@@ -1008,6 +1057,8 @@ static int graphkeys_select_leftright_exec(bContext *C, 
wmOperator *op)
        /* do the selecting now */
        graphkeys_select_leftright(&ac, leftright, selectmode);
        
+       graphkeys_auto_view(C);
+       
        /* set notifier that keyframe selection (and channels too) have changed 
*/
        WM_event_add_notifier(C, NC_ANIMATION | ND_KEYFRAME | ND_ANIMCHAN | 
NA_SELECTED, NULL);
        
diff --git a/source/blender/makesdna/DNA_space_types.h 
b/source/blender/makesdna/DNA_space_types.h
index 7434bcf..9ccfc48 100644
--- a/source/blender/makesdna/DNA_space_types.h
+++ b/source/blender/makesdna/DNA_space_types.h
@@ -371,6 +371,8 @@ typedef enum eGraphEdit_Flag {
        /* normalize curves on display */
        SIPO_NORMALIZE            = (1 << 14),
        SIPO_NORMALIZE_FREEZE     = (1 << 15),
+       /* automatically set view on selection */
+       SIPO_AUTOVIEW             = (1 << 16),
 } eGraphEdit_Flag;
 
 /* SpaceIpo->mode (Graph Editor Mode) */
diff --git a/source/blender/makesrna/intern/rna_space.c 
b/source/blender/makesrna/intern/rna_space.c
index 13f736d..dbcb1a0 100644
--- a/source/blender/makesrna/intern/rna_space.c
+++ b/source/blender/makesrna/intern/rna_space.c
@@ -3041,6 +3041,12 @@ static void rna_def_space_graph(BlenderRNA *brna)
        RNA_def_property_clear_flag(prop, PROP_EDITABLE);
        RNA_def_property_ui_text(prop, "Has Ghost Curves", "Graph Editor 
instance has some ghost curves stored");
 
+       /* auto view */
+       prop = RNA_def_property(srna, "use_auto_view", PROP_BOOLEAN, PROP_NONE);
+       RNA_def_property_boolean_sdna(prop, NULL, "flag", SIPO_AUTOVIEW);
+       RNA_def_property_ui_text(prop, "Use Auto View", "Automatically adjust 
view based on selection");
+       RNA_def_property_update(prop, NC_SPACE | ND_SPACE_GRAPH, NULL);
+
        /* nromalize curves */
        prop = RNA_def_property(srna, "use_normalization", PROP_BOOLEAN, 
PROP_NONE);
        RNA_def_property_boolean_sdna(prop, NULL, "flag", SIPO_NORMALIZE);

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