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GPencil: Select Grouped -> By Color 

Added a way to select all the currently visible strokes that use the same
color as the selected stroke. This can be accessed via the Select Grouped (Shift-G)
operator as an alternative to selecting by layer.
This commit is contained in:
Joshua Leung 2016-08-26 16:04:15 +12:00
parent 56360a3ddf
commit 84cd137503
1 changed files with 46 additions and 1 deletions
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47
source/blender/editors/gpencil/gpencil_select.c
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@ -36,6 +36,7 @@
#include "MEM_guardedalloc.h"
#include "BLI_blenlib.h"
#include "BLI_ghash.h"
#include "BLI_lasso.h"
#include "BLI_utildefines.h"
#include "BLI_math_vector.h"
@ -253,6 +254,9 @@ typedef enum eGP_SelectGrouped {
/* Select strokes in the same layer */
GP_SEL_SAME_LAYER = 0,
/* Select strokes with the same color */
GP_SEL_SAME_COLOR = 1,
/* TODO: All with same prefix - Useful for isolating all layers for a particular character for instance */
/* TODO: All with same appearance - colour/opacity/volumetric/fills ? */
} eGP_SelectGrouped;
@ -302,6 +306,43 @@ static void gp_select_same_layer(bContext *C)
CTX_DATA_END;
}
/* Select all strokes with same colors as selected ones */
static void gp_select_same_color(bContext *C)
{
/* First, build set containing all the colors of selected strokes
* - We use the palette names, so that we can select all strokes with one
* (potentially missing) color, and remap them to something else
*/
GSet *selected_colors = BLI_gset_str_new("GP Selected Colors");
CTX_DATA_BEGIN(C, bGPDstroke *, gps, editable_gpencil_strokes)
{
if (gps->flag & GP_STROKE_SELECT) {
/* add instead of insert here, otherwise the uniqueness check gets skipped,
* and we get many duplicate entries...
*/
BLI_gset_add(selected_colors, gps->colorname);
}
}
CTX_DATA_END;
/* Second, select any visible stroke that uses these colors */
CTX_DATA_BEGIN(C, bGPDstroke *, gps, editable_gpencil_strokes)
{
if (BLI_gset_haskey(selected_colors, gps->colorname)) {
/* select this stroke */
bGPDspoint *pt;
int i;
for (i = 0, pt = gps->points; i < gps->totpoints; i++, pt++) {
pt->flag |= GP_SPOINT_SELECT;
}
gps->flag |= GP_STROKE_SELECT;
}
}
CTX_DATA_END;
}
/* ----------------------------------- */
@ -314,6 +355,9 @@ static int gpencil_select_grouped_exec(bContext *C, wmOperator *op)
case GP_SEL_SAME_LAYER:
gp_select_same_layer(C);
break;
case GP_SEL_SAME_COLOR:
gp_select_same_color(C);
break;
default:
BLI_assert(!"unhandled select grouped gpencil mode");
@ -329,6 +373,7 @@ void GPENCIL_OT_select_grouped(wmOperatorType *ot)
{
static EnumPropertyItem prop_select_grouped_types[] = {
{GP_SEL_SAME_LAYER, "LAYER", 0, "Layer", "Shared layers"},
{GP_SEL_SAME_COLOR, "COLOR", 0, "Color", "Shared colors"},
{0, NULL, 0, NULL, NULL}
};
@ -338,7 +383,7 @@ void GPENCIL_OT_select_grouped(wmOperatorType *ot)
ot->description = "Select all strokes with similar characteristics";
/* callbacks */
//ot->invoke = WM_menu_invoke;
ot->invoke = WM_menu_invoke;
ot->exec = gpencil_select_grouped_exec;
ot->poll = gpencil_select_poll;