Commit: 6a0264896b38794ec8242040cf5104c4e06d844e
Author: Campbell Barton
Date: Thu Apr 26 12:01:44 2018 +0200
Branches: blender2.8
https://developer.blender.org/rB6a0264896b38794ec8242040cf5104c4e06d844e
UI: toolbar single column size snapping
Once a region is set to it's snapped size, zooming keeps the size.
===================================================================
M source/blender/blenkernel/BKE_screen.h
M source/blender/editors/include/ED_screen.h
M source/blender/editors/interface/view2d_ops.c
M source/blender/editors/screen/area.c
M source/blender/editors/screen/screen_ops.c
M source/blender/editors/space_view3d/space_view3d.c
===================================================================
diff --git a/source/blender/blenkernel/BKE_screen.h
b/source/blender/blenkernel/BKE_screen.h
index 2736833a5ca..69b5e7ea6fe 100644
--- a/source/blender/blenkernel/BKE_screen.h
+++ b/source/blender/blenkernel/BKE_screen.h
@@ -140,6 +140,8 @@ typedef struct ARegionType {
void (*exit)(struct wmWindowManager *, struct ARegion *);
/* draw entirely, view changes should be handled here */
void (*draw)(const struct bContext *, struct ARegion *);
+ /* snap the size of the region (can be NULL for no snapping). */
+ int (*snap_size)(const struct ARegion *ar, int size, int axis);
/* contextual changes should be handled here */
void (*listener)(struct bScreen *, struct ScrArea *, struct ARegion *,
struct wmNotifier *, const struct Scene *scene);
diff --git a/source/blender/editors/include/ED_screen.h
b/source/blender/editors/include/ED_screen.h
index 6d9b4af7c01..b4857051c89 100644
--- a/source/blender/editors/include/ED_screen.h
+++ b/source/blender/editors/include/ED_screen.h
@@ -91,6 +91,9 @@ void ED_region_grid_draw(struct ARegion *ar, float zoomx,
float zoomy);
float ED_region_blend_factor(struct ARegion *ar);
void ED_region_visible_rect(struct ARegion *ar, struct rcti *rect);
+int ED_region_snap_size_test(const struct ARegion *ar);
+bool ED_region_snap_size_apply(struct ARegion *ar, int snap_flag);
+
/* message_bus callbacks */
void ED_region_do_msg_notify_tag_redraw(
struct bContext *C, struct wmMsgSubscribeKey *msg_key, struct
wmMsgSubscribeValue *msg_val);
diff --git a/source/blender/editors/interface/view2d_ops.c
b/source/blender/editors/interface/view2d_ops.c
index dc68c8b58de..6150b7e254e 100644
--- a/source/blender/editors/interface/view2d_ops.c
+++ b/source/blender/editors/interface/view2d_ops.c
@@ -641,6 +641,7 @@ static void view_zoomstep_apply_ex(
View2D *v2d = &ar->v2d;
const rctf cur_old = v2d->cur;
float dx, dy;
+ const int snap_test = ED_region_snap_size_test(ar);
/* calculate amount to move view by, ensuring symmetry so the
* old zoom level is restored after zooming back the same amount
@@ -725,6 +726,12 @@ static void view_zoomstep_apply_ex(
/* validate that view is in valid configuration after this operation */
UI_view2d_curRect_validate(v2d);
+ if (ED_region_snap_size_apply(ar, snap_test)) {
+ ScrArea *sa = CTX_wm_area(C);
+ ED_area_tag_redraw(sa);
+ WM_event_add_notifier(C, NC_SCREEN | NA_EDITED, NULL);
+ }
+
/* request updates to be done... */
ED_region_tag_redraw(vzd->ar);
UI_view2d_sync(CTX_wm_screen(C), CTX_wm_area(C), v2d, V2D_LOCK_COPY);
@@ -898,7 +905,8 @@ static void view_zoomdrag_apply(bContext *C, wmOperator *op)
v2dViewZoomData *vzd = op->customdata;
View2D *v2d = vzd->v2d;
float dx, dy;
-
+ const int snap_test = ED_region_snap_size_test(vzd->ar);
+
/* get amount to move view by */
dx = RNA_float_get(op->ptr, "deltax");
dy = RNA_float_get(op->ptr, "deltay");
@@ -961,7 +969,13 @@ static void view_zoomdrag_apply(bContext *C, wmOperator
*op)
/* validate that view is in valid configuration after this operation */
UI_view2d_curRect_validate(v2d);
-
+
+ if (ED_region_snap_size_apply(vzd->ar, snap_test)) {
+ ScrArea *sa = CTX_wm_area(C);
+ ED_area_tag_redraw(sa);
+ WM_event_add_notifier(C, NC_SCREEN | NA_EDITED, NULL);
+ }
+
/* request updates to be done... */
ED_region_tag_redraw(vzd->ar);
UI_view2d_sync(CTX_wm_screen(C), CTX_wm_area(C), v2d, V2D_LOCK_COPY);
@@ -2000,6 +2014,7 @@ static int reset_exec(bContext *C, wmOperator *UNUSED(op))
ARegion *ar = CTX_wm_region(C);
View2D *v2d = &ar->v2d;
int winx, winy;
+ const int snap_test = ED_region_snap_size_test(ar);
/* zoom 1.0 */
winx = (float)(BLI_rcti_size_x(&v2d->mask) + 1);
@@ -2033,7 +2048,13 @@ static int reset_exec(bContext *C, wmOperator
*UNUSED(op))
/* validate that view is in valid configuration after this operation */
UI_view2d_curRect_validate(v2d);
-
+
+ if (ED_region_snap_size_apply(ar, snap_test)) {
+ ScrArea *sa = CTX_wm_area(C);
+ ED_area_tag_redraw(sa);
+ WM_event_add_notifier(C, NC_SCREEN | NA_EDITED, NULL);
+ }
+
/* request updates to be done... */
ED_region_tag_redraw(ar);
UI_view2d_sync(CTX_wm_screen(C), CTX_wm_area(C), v2d, V2D_LOCK_COPY);
diff --git a/source/blender/editors/screen/area.c
b/source/blender/editors/screen/area.c
index 678c3281335..0f9378d0a41 100644
--- a/source/blender/editors/screen/area.c
+++ b/source/blender/editors/screen/area.c
@@ -2741,3 +2741,36 @@ void ED_region_message_subscribe(
ar->type->message_subscribe(C, workspace, scene, screen, sa,
ar, mbus);
}
}
+
+int ED_region_snap_size_test(const ARegion *ar)
+{
+ /* Use a larger value because toggling scrollbars can jump in size. */
+ const int snap_match_threshold = 16;
+ if (ar->type->snap_size != NULL) {
+ return ((((ar->sizex - ar->type->snap_size(ar, ar->sizex, 0))
<= snap_match_threshold) << 0) |
+ (((ar->sizey - ar->type->snap_size(ar, ar->sizey, 1))
<= snap_match_threshold) << 1));
+ }
+ return 0;
+}
+
+bool ED_region_snap_size_apply(ARegion *ar, int snap_flag)
+{
+ bool changed = false;
+ if (ar->type->snap_size != NULL) {
+ if (snap_flag & (1 << 0)) {
+ short snap_size = ar->type->snap_size(ar, ar->sizex, 0);
+ if (snap_size != ar->sizex) {
+ ar->sizex = snap_size;
+ changed = true;
+ }
+ }
+ if (snap_flag & (1 << 1)) {
+ short snap_size = ar->type->snap_size(ar, ar->sizey, 1);
+ if (snap_size != ar->sizey) {
+ ar->sizey = snap_size;
+ changed = true;
+ }
+ }
+ }
+ return changed;
+}
diff --git a/source/blender/editors/screen/screen_ops.c
b/source/blender/editors/screen/screen_ops.c
index 6ed56e91a0f..7dab2c7c3db 100644
--- a/source/blender/editors/screen/screen_ops.c
+++ b/source/blender/editors/screen/screen_ops.c
@@ -2156,7 +2156,8 @@ static int region_scale_modal(bContext *C, wmOperator
*op, const wmEvent *event)
/* execute the events */
switch (event->type) {
case MOUSEMOVE:
-
+ {
+ const int snap_size_threshold = U.widget_unit * 3;
if (rmd->edge == AE_LEFT_TO_TOPRIGHT || rmd->edge ==
AE_RIGHT_TO_TOPLEFT) {
delta = event->x - rmd->origx;
if (rmd->edge == AE_LEFT_TO_TOPRIGHT) delta =
-delta;
@@ -2165,8 +2166,15 @@ static int region_scale_modal(bContext *C, wmOperator
*op, const wmEvent *event)
delta /= UI_DPI_FAC;
rmd->ar->sizex = rmd->origval + delta;
+
+ if (rmd->ar->type->snap_size) {
+ short sizex_test =
rmd->ar->type->snap_size(rmd->ar, rmd->ar->sizex, 0);
+ if (ABS(rmd->ar->sizex - sizex_test) <
snap_size_threshold) {
+ rmd->ar->sizex = sizex_test;
+ }
+ }
CLAMP(rmd->ar->sizex, 0, rmd->maxsize);
-
+
if (rmd->ar->sizex < UI_UNIT_X) {
rmd->ar->sizex = rmd->origval;
if (!(rmd->ar->flag & RGN_FLAG_HIDDEN))
@@ -2184,6 +2192,13 @@ static int region_scale_modal(bContext *C, wmOperator
*op, const wmEvent *event)
delta /= UI_DPI_FAC;
rmd->ar->sizey = rmd->origval + delta;
+
+ if (rmd->ar->type->snap_size) {
+ short sizey_test =
rmd->ar->type->snap_size(rmd->ar, rmd->ar->sizey, 1);
+ if (ABS(rmd->ar->sizey - sizey_test) <
snap_size_threshold) {
+ rmd->ar->sizey = sizey_test;
+ }
+ }
CLAMP(rmd->ar->sizey, 0, rmd->maxsize);
/* note, 'UI_UNIT_Y/4' means you need to drag
the header almost
@@ -2203,7 +2218,7 @@ static int region_scale_modal(bContext *C, wmOperator
*op, const wmEvent *event)
WM_event_add_notifier(C, NC_SCREEN | NA_EDITED, NULL);
break;
-
+ }
case LEFTMOUSE:
if (event->val == KM_RELEASE) {
diff --git a/source/blender/editors/space_view3d/space_view3d.c
b/source/blender/editors/space_view3d/space_view3d.c
index b4d6d554e4f..4fb4193517b 100644
--- a/source/blender/editors/space_view3d/space_view3d.c
+++ b/source/blender/editors/space_view3d/space_view3d.c
@@ -1277,6 +1277,18 @@ static void view3d_buttons_region_listener(
}
}
+static int view3d_tools_region_snap_size(const ARegion *ar, int size, int axis)
+{
+ if (axis == 0) {
+ /* Note, this depends on the icon size: see
#ICON_DEFAULT_HEIGHT_TOOLBAR. */
+ const float snap_units = 3.25f;
+ const float aspect = BLI_rctf_size_x(&ar->v2d.cur) /
(BLI_rcti_size_x(&ar->v2d.mask) + 1);
+ const int snap_size = (snap_units * U.widget_unit) / aspect;
+ return snap_size;
+ }
+ return size;
+}
+
/* add handlers, stuff you only do once or on area/region changes */
static void view3d_tools_region_init(wmWindowManager *wm, ARegion *ar)
{
@@ -1474,6 +1486,7 @@ void ED_spacetype_view3d(void)
art->prefsizey = 50; /* XXX */
art->keymapflag = ED_KEYMAP_UI | ED_KEYMAP_FRAMES;
art->listener = view3d_buttons_region_listener;
+ art->snap_size = view3d_tools_region_snap_size;
art->init = view3d_tools_region_init;
art->draw = view3d_tools_region_draw;
BLI_addhead(&st->regiontypes, art);
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