1 /*
2  * This program is free software; you can redistribute it and/or
3  * modify it under the terms of the GNU General Public License
4  * as published by the Free Software Foundation; either version 2
5  * of the License, or (at your option) any later version.
6  *
7  * This program is distributed in the hope that it will be useful,
8  * but WITHOUT ANY WARRANTY; without even the implied warranty of
9  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
10  * GNU General Public License for more details.
11  *
12  * You should have received a copy of the GNU General Public License
13  * along with this program; if not, write to the Free Software Foundation,
14  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
15  *
16  * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
17  * All rights reserved.
18  */
19 
20 /** \file
21  * \ingroup edinterface
22  */
23 
24 #pragma once
25 
26 #include "BLI_compiler_attrs.h"
27 #include "BLI_rect.h"
28 
29 #include "DNA_listBase.h"
30 #include "RNA_types.h"
31 #include "UI_interface.h"
32 #include "UI_resources.h"
33 
34 struct ARegion;
35 struct AnimationEvalContext;
36 struct CurveMapping;
37 struct CurveProfile;
38 struct ID;
39 struct ImBuf;
40 struct Scene;
41 struct bContext;
42 struct bContextStore;
43 struct uiHandleButtonData;
44 struct uiLayout;
45 struct uiStyle;
46 struct uiUndoStack_Text;
47 struct uiWidgetColors;
48 struct wmEvent;
49 struct wmKeyConfig;
50 struct wmOperatorType;
51 struct wmTimer;
52 
53 /* ****************** general defines ************** */
54 
55 #define RNA_NO_INDEX -1
56 #define RNA_ENUM_VALUE -2
57 
58 #define UI_MENU_PADDING (int)(0.2f * UI_UNIT_Y)
59 
60 #define UI_MENU_WIDTH_MIN (UI_UNIT_Y * 9)
61 /* some extra padding added to menus containing submenu icons */
62 #define UI_MENU_SUBMENU_PADDING (6 * UI_DPI_FAC)
63 
64 /* menu scrolling */
65 #define UI_MENU_SCROLL_ARROW 12
66 #define UI_MENU_SCROLL_MOUSE (UI_MENU_SCROLL_ARROW + 2)
67 #define UI_MENU_SCROLL_PAD 4
68 
69 /* panel limits */
70 #define UI_PANEL_MINX 100
71 #define UI_PANEL_MINY 70
72 
73 /* popover width (multiplied by 'U.widget_unit') */
74 #define UI_POPOVER_WIDTH_UNITS 10
75 
76 /* uiBut->flag */
77 enum {
78   UI_SELECT = (1 << 0),   /* use when the button is pressed */
79   UI_SCROLLED = (1 << 1), /* temp hidden, scrolled away */
80   UI_ACTIVE = (1 << 2),
81   UI_HAS_ICON = (1 << 3),
82   UI_HIDDEN = (1 << 4),
83   UI_SELECT_DRAW = (1 << 5), /* Display selected, doesn't impact interaction. */
84   /** Property search filter is active and the button does not match. */
85   UI_SEARCH_FILTER_NO_MATCH = (1 << 12),
86   /* warn: rest of uiBut->flag in UI_interface.h */
87 };
88 
89 /* uiBut->dragflag */
90 enum {
91   UI_BUT_DRAGPOIN_FREE = (1 << 0),
92 };
93 
94 /* but->pie_dir */
95 typedef enum RadialDirection {
96   UI_RADIAL_NONE = -1,
97   UI_RADIAL_N = 0,
98   UI_RADIAL_NE = 1,
99   UI_RADIAL_E = 2,
100   UI_RADIAL_SE = 3,
101   UI_RADIAL_S = 4,
102   UI_RADIAL_SW = 5,
103   UI_RADIAL_W = 6,
104   UI_RADIAL_NW = 7,
105 } RadialDirection;
106 
107 extern const char ui_radial_dir_order[8];
108 extern const char ui_radial_dir_to_numpad[8];
109 extern const short ui_radial_dir_to_angle[8];
110 
111 /* internal panel drawing defines */
112 #define PNL_HEADER (UI_UNIT_Y * 1.2) /* 24 default */
113 
114 /* bit button defines */
115 /* Bit operations */
116 #define UI_BITBUT_TEST(a, b) (((a) & (1 << (b))) != 0)
117 #define UI_BITBUT_VALUE_TOGGLED(a, b) ((a) ^ (1 << (b)))
118 #define UI_BITBUT_VALUE_ENABLED(a, b) ((a) | (1 << (b)))
119 #define UI_BITBUT_VALUE_DISABLED(a, b) ((a) & ~(1 << (b)))
120 
121 /* bit-row */
122 #define UI_BITBUT_ROW(min, max) \
123   (((max) >= 31 ? 0xFFFFFFFF : (1 << ((max) + 1)) - 1) - ((min) ? ((1 << (min)) - 1) : 0))
124 
125 /* split numbuts by ':' and align l/r */
126 #define USE_NUMBUTS_LR_ALIGN
127 
128 /* Use new 'align' computation code. */
129 #define USE_UIBUT_SPATIAL_ALIGN
130 
131 /* PieMenuData->flags */
132 enum {
133   /** pie menu item collision is detected at 90 degrees */
134   UI_PIE_DEGREES_RANGE_LARGE = (1 << 0),
135   /** use initial center of pie menu to calculate direction */
136   UI_PIE_INITIAL_DIRECTION = (1 << 1),
137   /** pie menu is drag style */
138   UI_PIE_DRAG_STYLE = (1 << 2),
139   /** mouse not far enough from center position  */
140   UI_PIE_INVALID_DIR = (1 << 3),
141   /** pie menu changed to click style, click to confirm  */
142   UI_PIE_CLICK_STYLE = (1 << 4),
143   /** pie animation finished, do not calculate any more motion  */
144   UI_PIE_ANIMATION_FINISHED = (1 << 5),
145   /** pie gesture selection has been done, now wait for mouse motion to end */
146   UI_PIE_GESTURE_END_WAIT = (1 << 6),
147 };
148 
149 #define PIE_CLICK_THRESHOLD_SQ 50.0f
150 
151 /* max amount of items a radial menu (pie menu) can contain */
152 #define PIE_MAX_ITEMS 8
153 
154 struct uiBut {
155   struct uiBut *next, *prev;
156 
157   /* Pointer back to the layout item holding this button. */
158   uiLayout *layout;
159   int flag, drawflag;
160   eButType type;
161   eButPointerType pointype;
162   short bit, bitnr, retval, strwidth, alignnr;
163   short ofs, pos, selsta, selend;
164 
165   char *str;
166   char strdata[UI_MAX_NAME_STR];
167   char drawstr[UI_MAX_DRAW_STR];
168 
169   rctf rect; /* block relative coords */
170 
171   char *poin;
172   float hardmin, hardmax, softmin, softmax;
173 
174   /* both these values use depends on the button type
175    * (polymorphic struct or union would be nicer for this stuff) */
176 
177   /**
178    * For #uiBut.type:
179    * - UI_BTYPE_LABEL:        Use `(a1 == 1.0f)` to use a2 as a blending factor (imaginative!).
180    * - UI_BTYPE_SCROLL:       Use as scroll size.
181    * - UI_BTYPE_SEARCH_MENU:  Use as number or rows.
182    */
183   float a1;
184 
185   /**
186    * For #uiBut.type:
187    * - UI_BTYPE_HSVCIRCLE:    Use to store the luminosity.
188    * - UI_BTYPE_LABEL:        If `(a1 == 1.0f)` use a2 as a blending factor.
189    * - UI_BTYPE_SEARCH_MENU:  Use as number or columns.
190    */
191   float a2;
192 
193   uchar col[4];
194 
195   uiButHandleFunc func;
196   void *func_arg1;
197   void *func_arg2;
198 
199   uiButHandleNFunc funcN;
200   void *func_argN;
201 
202   struct bContextStore *context;
203 
204   uiButCompleteFunc autocomplete_func;
205   void *autofunc_arg;
206 
207   uiButHandleRenameFunc rename_func;
208   void *rename_arg1;
209   void *rename_orig;
210 
211   /** Run an action when holding the button down. */
212   uiButHandleHoldFunc hold_func;
213   void *hold_argN;
214 
215   const char *tip;
216   uiButToolTipFunc tip_func;
217   void *tip_argN;
218 
219   /** info on why button is disabled, displayed in tooltip */
220   const char *disabled_info;
221 
222   BIFIconID icon;
223   /** emboss: UI_EMBOSS, UI_EMBOSS_NONE ... etc, copied from the #uiBlock.emboss */
224   char emboss;
225   /** direction in a pie menu, used for collision detection (RadialDirection) */
226   signed char pie_dir;
227   /** could be made into a single flag */
228   bool changed;
229   /** so buttons can support unit systems which are not RNA */
230   uchar unit_type;
231   short modifier_key;
232   short iconadd;
233 
234   /* UI_BTYPE_BLOCK data */
235   uiBlockCreateFunc block_create_func;
236 
237   /* UI_BTYPE_PULLDOWN/UI_BTYPE_MENU data */
238   uiMenuCreateFunc menu_create_func;
239 
240   uiMenuStepFunc menu_step_func;
241 
242   /* RNA data */
243   struct PointerRNA rnapoin;
244   struct PropertyRNA *rnaprop;
245   int rnaindex;
246 
247   /* Operator data */
248   struct wmOperatorType *optype;
249   struct PointerRNA *opptr;
250   short opcontext;
251   uchar menu_key; /* 'a'-'z', always lower case */
252 
253   ListBase extra_op_icons; /* uiButExtraOpIcon */
254 
255   /* Draggable data, type is WM_DRAG_... */
256   char dragtype;
257   short dragflag;
258   void *dragpoin;
259   struct ImBuf *imb;
260   float imb_scale;
261 
262   /* active button data */
263   struct uiHandleButtonData *active;
264 
265   /* Custom button data. */
266   void *custom_data;
267 
268   char *editstr;
269   double *editval;
270   float *editvec;
271 
272   uiButPushedStateFunc pushed_state_func;
273   void *pushed_state_arg;
274 
275   /* pointer back */
276   uiBlock *block;
277 };
278 
279 /** Derived struct for #UI_BTYPE_NUM */
280 typedef struct uiButNumber {
281   uiBut but;
282 
283   float step_size;
284   float precision;
285 } uiButNumber;
286 
287 /** Derived struct for #UI_BTYPE_COLOR */
288 typedef struct uiButColor {
289   uiBut but;
290 
291   bool is_pallete_color;
292   int palette_color_index;
293 } uiButColor;
294 
295 /** Derived struct for #UI_BTYPE_TAB */
296 typedef struct uiButTab {
297   uiBut but;
298   struct MenuType *menu;
299 } uiButTab;
300 
301 /** Derived struct for #UI_BTYPE_SEARCH_MENU */
302 typedef struct uiButSearch {
303   uiBut but;
304 
305   uiButSearchCreateFn popup_create_fn;
306   uiButSearchUpdateFn items_update_fn;
307   void *item_active;
308 
309   void *arg;
310   uiButSearchArgFreeFn arg_free_fn;
311 
312   uiButSearchContextMenuFn item_context_menu_fn;
313   uiButSearchTooltipFn item_tooltip_fn;
314 
315   const char *item_sep_string;
316 
317   struct PointerRNA rnasearchpoin;
318   struct PropertyRNA *rnasearchprop;
319 } uiButSearch;
320 
321 /** Derived struct for #UI_BTYPE_DECORATOR */
322 typedef struct uiButDecorator {
323   uiBut but;
324 
325   struct PointerRNA rnapoin;
326   struct PropertyRNA *rnaprop;
327   int rnaindex;
328 } uiButDecorator;
329 
330 /** Derived struct for #UI_BTYPE_PROGRESS_BAR. */
331 typedef struct uiButProgressbar {
332   uiBut but;
333 
334   /* 0..1 range */
335   float progress;
336 } uiButProgressbar;
337 
338 /** Derived struct for #UI_BTYPE_HSVCUBE. */
339 typedef struct uiButHSVCube {
340   uiBut but;
341 
342   eButGradientType gradient_type;
343 } uiButHSVCube;
344 
345 /** Derived struct for #UI_BTYPE_COLORBAND. */
346 typedef struct uiButColorBand {
347   uiBut but;
348 
349   struct ColorBand *edit_coba;
350 } uiButColorBand;
351 
352 /** Derived struct for #UI_BTYPE_CURVEPROFILE. */
353 typedef struct uiButCurveProfile {
354   uiBut but;
355 
356   struct CurveProfile *edit_profile;
357 } uiButCurveProfile;
358 
359 /** Derived struct for #UI_BTYPE_CURVE. */
360 typedef struct uiButCurveMapping {
361   uiBut but;
362 
363   struct CurveMapping *edit_cumap;
364   eButGradientType gradient_type;
365 } uiButCurveMapping;
366 
367 /**
368  * Additional, superimposed icon for a button, invoking an operator.
369  */
370 typedef struct uiButExtraOpIcon {
371   struct uiButExtraOpIcon *next, *prev;
372 
373   BIFIconID icon;
374   struct wmOperatorCallParams *optype_params;
375 
376   bool highlighted;
377 } uiButExtraOpIcon;
378 
379 typedef struct ColorPicker {
380   struct ColorPicker *next, *prev;
381   /** Color data, may be HSV or HSL. */
382   float color_data[3];
383   /** Initial color data (detect changes). */
384   float color_data_init[3];
385   bool is_init;
386   /** Cubic saturation for the color wheel. */
387   bool use_color_cubic;
388   bool use_color_lock;
389   bool use_luminosity_lock;
390   float luminosity_lock_value;
391 } ColorPicker;
392 
393 typedef struct ColorPickerData {
394   ListBase list;
395 } ColorPickerData;
396 
397 struct PieMenuData {
398   /** store title and icon to allow access when pie levels are created */
399   const char *title;
400   int icon;
401 
402   float pie_dir[2];
403   float pie_center_init[2];
404   float pie_center_spawned[2];
405   float last_pos[2];
406   double duration_gesture;
407   int flags;
408   /** initial event used to fire the pie menu, store here so we can query for release */
409   int event;
410   float alphafac;
411 };
412 
413 /* uiBlock.content_hints */
414 enum eBlockContentHints {
415   /** In a menu block, if there is a single sub-menu button, we add some
416    * padding to the right to put nicely aligned triangle icons there. */
417   UI_BLOCK_CONTAINS_SUBMENU_BUT = (1 << 0),
418 };
419 
420 /**
421  * A group of button references, used by property search to keep track of sets of buttons that
422  * should be searched together. For example, in property split layouts number buttons and their
423  * labels (and even their decorators) are separate buttons, but they must be searched and
424  * highlighted together.
425  */
426 typedef struct uiButtonGroup {
427   void *next, *prev;
428   ListBase buttons; /* #LinkData with #uiBut data field. */
429   short flag;
430 } uiButtonGroup;
431 
432 /* #uiButtonGroup.flag. */
433 typedef enum uiButtonGroupFlag {
434   /** While this flag is set, don't create new button groups for layout item calls. */
435   UI_BUTTON_GROUP_LOCK = (1 << 0),
436   /** The buttons in this group are inside a panel header. */
437   UI_BUTTON_GROUP_PANEL_HEADER = (1 << 1),
438 } uiButtonGroupFlag;
439 
440 struct uiBlock {
441   uiBlock *next, *prev;
442 
443   ListBase buttons;
444   struct Panel *panel;
445   uiBlock *oldblock;
446 
447   ListBase butstore; /* UI_butstore_* runtime function */
448 
449   ListBase button_groups; /* #uiButtonGroup. */
450 
451   ListBase layouts;
452   struct uiLayout *curlayout;
453 
454   ListBase contexts;
455 
456   char name[UI_MAX_NAME_STR];
457 
458   float winmat[4][4];
459 
460   rctf rect;
461   float aspect;
462 
463   uint puphash; /* popup menu hash for memory */
464 
465   uiButHandleFunc func;
466   void *func_arg1;
467   void *func_arg2;
468 
469   uiButHandleNFunc funcN;
470   void *func_argN;
471 
472   uiMenuHandleFunc butm_func;
473   void *butm_func_arg;
474 
475   uiBlockHandleFunc handle_func;
476   void *handle_func_arg;
477 
478   /* custom extra handling */
479   int (*block_event_func)(const struct bContext *C, struct uiBlock *, const struct wmEvent *);
480 
481   /* extra draw function for custom blocks */
482   void (*drawextra)(const struct bContext *C, void *idv, void *arg1, void *arg2, rcti *rect);
483   void *drawextra_arg1;
484   void *drawextra_arg2;
485 
486   int flag;
487   short alignnr;
488   /** Hints about the buttons of this block. Used to avoid iterating over
489    * buttons to find out if some criteria is met by any. Instead, check this
490    * criteria when adding the button and set a flag here if it's met. */
491   short content_hints; /* eBlockContentHints */
492 
493   char direction;
494   /** UI_BLOCK_THEME_STYLE_* */
495   char theme_style;
496   /** UI_EMBOSS, UI_EMBOSS_NONE ... etc, copied to #uiBut.emboss */
497   char emboss;
498   bool auto_open;
499   char _pad[5];
500   double auto_open_last;
501 
502   const char *lockstr;
503 
504   char lock;
505   /** to keep blocks while drawing and free them afterwards */
506   char active;
507   /** to avoid tooltip after click */
508   char tooltipdisabled;
509   /** UI_block_end done? */
510   char endblock;
511 
512   /** for doing delayed */
513   eBlockBoundsCalc bounds_type;
514   /** Offset to use when calculating bounds (in pixels). */
515   int bounds_offset[2];
516   /** for doing delayed */
517   int bounds, minbounds;
518 
519   /** pulldowns, to detect outside, can differ per case how it is created */
520   rctf safety;
521   /** uiSafetyRct list */
522   ListBase saferct;
523 
524   uiPopupBlockHandle *handle; /* handle */
525 
526   /** use so presets can find the operator,
527    * across menus and from nested popups which fail for operator context. */
528   struct wmOperator *ui_operator;
529 
530   /** XXX hack for dynamic operator enums */
531   void *evil_C;
532 
533   /** unit system, used a lot for numeric buttons so include here
534    * rather than fetching through the scene every time. */
535   struct UnitSettings *unit;
536   /** \note only accessed by color picker templates. */
537   ColorPickerData color_pickers;
538 
539   bool is_color_gamma_picker; /* Block for color picker with gamma baked in. */
540 
541   /** display device name used to display this block,
542    * used by color widgets to transform colors from/to scene linear
543    */
544   char display_device[64];
545 
546   struct PieMenuData pie_data;
547 };
548 
549 typedef struct uiSafetyRct {
550   struct uiSafetyRct *next, *prev;
551   rctf parent;
552   rctf safety;
553 } uiSafetyRct;
554 
555 /* interface.c */
556 
557 void ui_fontscale(short *points, float aspect);
558 
559 extern void ui_block_to_window_fl(const struct ARegion *region,
560                                   uiBlock *block,
561                                   float *x,
562                                   float *y);
563 extern void ui_block_to_window(const struct ARegion *region, uiBlock *block, int *x, int *y);
564 extern void ui_block_to_window_rctf(const struct ARegion *region,
565                                     uiBlock *block,
566                                     rctf *rct_dst,
567                                     const rctf *rct_src);
568 extern float ui_block_to_window_scale(const struct ARegion *region, uiBlock *block);
569 extern void ui_window_to_block_fl(const struct ARegion *region,
570                                   uiBlock *block,
571                                   float *x,
572                                   float *y);
573 extern void ui_window_to_block(const struct ARegion *region, uiBlock *block, int *x, int *y);
574 extern void ui_window_to_block_rctf(const struct ARegion *region,
575                                     uiBlock *block,
576                                     rctf *rct_dst,
577                                     const rctf *rct_src);
578 extern void ui_window_to_region(const struct ARegion *region, int *x, int *y);
579 extern void ui_window_to_region_rcti(const struct ARegion *region,
580                                      rcti *rect_dst,
581                                      const rcti *rct_src);
582 extern void ui_region_to_window(const struct ARegion *region, int *x, int *y);
583 extern void ui_region_winrct_get_no_margin(const struct ARegion *region, struct rcti *r_rect);
584 
585 uiBut *ui_but_change_type(uiBut *but, eButType new_type);
586 
587 extern double ui_but_value_get(uiBut *but);
588 extern void ui_but_value_set(uiBut *but, double value);
589 extern void ui_but_hsv_set(uiBut *but);
590 extern void ui_but_v3_get(uiBut *but, float vec[3]);
591 extern void ui_but_v3_set(uiBut *but, const float vec[3]);
592 
593 extern void ui_hsvcircle_vals_from_pos(
594     const rcti *rect, const float mx, const float my, float *r_val_rad, float *r_val_dist);
595 extern void ui_hsvcircle_pos_from_vals(
596     const ColorPicker *cpicker, const rcti *rect, const float *hsv, float *xpos, float *ypos);
597 extern void ui_hsvcube_pos_from_vals(
598     const struct uiButHSVCube *hsv_but, const rcti *rect, const float *hsv, float *xp, float *yp);
599 
600 extern void ui_but_string_get_ex(uiBut *but,
601                                  char *str,
602                                  const size_t maxlen,
603                                  const int float_precision,
604                                  const bool use_exp_float,
605                                  bool *r_use_exp_float) ATTR_NONNULL(1, 2);
606 extern void ui_but_string_get(uiBut *but, char *str, const size_t maxlen) ATTR_NONNULL();
607 extern char *ui_but_string_get_dynamic(uiBut *but, int *r_str_size);
608 extern void ui_but_convert_to_unit_alt_name(uiBut *but, char *str, size_t maxlen) ATTR_NONNULL();
609 extern bool ui_but_string_set(struct bContext *C, uiBut *but, const char *str) ATTR_NONNULL();
610 extern bool ui_but_string_eval_number(struct bContext *C,
611                                       const uiBut *but,
612                                       const char *str,
613                                       double *value) ATTR_NONNULL();
614 extern int ui_but_string_get_max_length(uiBut *but);
615 /* Clear & exit the active button's string. */
616 extern void ui_but_active_string_clear_and_exit(struct bContext *C, uiBut *but) ATTR_NONNULL();
617 extern uiBut *ui_but_drag_multi_edit_get(uiBut *but);
618 
619 void ui_def_but_icon(uiBut *but, const int icon, const int flag);
620 void ui_def_but_icon_clear(uiBut *but);
621 
622 void ui_but_extra_operator_icons_free(uiBut *but);
623 
624 extern void ui_but_rna_menu_convert_to_panel_type(struct uiBut *but, const char *panel_type);
625 extern void ui_but_rna_menu_convert_to_menu_type(struct uiBut *but, const char *menu_type);
626 extern bool ui_but_menu_draw_as_popover(const uiBut *but);
627 
628 void ui_but_range_set_hard(uiBut *but);
629 void ui_but_range_set_soft(uiBut *but);
630 
631 extern void ui_but_update(uiBut *but);
632 extern void ui_but_update_edited(uiBut *but);
633 extern bool ui_but_is_float(const uiBut *but) ATTR_WARN_UNUSED_RESULT;
634 extern bool ui_but_is_bool(const uiBut *but) ATTR_WARN_UNUSED_RESULT;
635 extern bool ui_but_is_unit(const uiBut *but) ATTR_WARN_UNUSED_RESULT;
636 extern bool ui_but_is_compatible(const uiBut *but_a, const uiBut *but_b) ATTR_WARN_UNUSED_RESULT;
637 extern bool ui_but_is_rna_valid(uiBut *but) ATTR_WARN_UNUSED_RESULT;
638 extern bool ui_but_supports_cycling(const uiBut *but) ATTR_WARN_UNUSED_RESULT;
639 
640 extern int ui_but_is_pushed_ex(uiBut *but, double *value) ATTR_WARN_UNUSED_RESULT;
641 extern int ui_but_is_pushed(uiBut *but) ATTR_WARN_UNUSED_RESULT;
642 
643 void ui_but_override_flag(struct Main *bmain, uiBut *but);
644 
645 extern void ui_block_bounds_calc(uiBlock *block);
646 
647 extern struct ColorManagedDisplay *ui_block_cm_display_get(uiBlock *block);
648 void ui_block_cm_to_display_space_v3(uiBlock *block, float pixel[3]);
649 
650 /* interface_regions.c */
651 
652 struct uiKeyNavLock {
653   /* set when we're using keyinput */
654   bool is_keynav;
655   /* only used to check if we've moved the cursor */
656   int event_xy[2];
657 };
658 
659 typedef uiBlock *(*uiBlockHandleCreateFunc)(struct bContext *C,
660                                             struct uiPopupBlockHandle *handle,
661                                             void *arg1);
662 
663 struct uiPopupBlockCreate {
664   uiBlockCreateFunc create_func;
665   uiBlockHandleCreateFunc handle_create_func;
666   void *arg;
667   void (*arg_free)(void *arg);
668 
669   int event_xy[2];
670 
671   /* when popup is initialized from a button */
672   struct ARegion *butregion;
673   uiBut *but;
674 };
675 
676 struct uiPopupBlockHandle {
677   /* internal */
678   struct ARegion *region;
679 
680   /* use only for 'UI_BLOCK_MOVEMOUSE_QUIT' popups */
681   float towards_xy[2];
682   double towardstime;
683   bool dotowards;
684 
685   bool popup;
686   void (*popup_func)(struct bContext *C, void *arg, int event);
687   void (*cancel_func)(struct bContext *C, void *arg);
688   void *popup_arg;
689 
690   /* store data for refreshing popups */
691   struct uiPopupBlockCreate popup_create_vars;
692   /* true if we can re-create the popup using 'popup_create_vars' */
693   bool can_refresh;
694   bool refresh;
695 
696   struct wmTimer *scrolltimer;
697   float scrolloffset;
698 
699   struct uiKeyNavLock keynav_state;
700 
701   /* for operator popups */
702   struct wmOperator *popup_op;
703   struct ScrArea *ctx_area;
704   struct ARegion *ctx_region;
705 
706   /* return values */
707   int butretval;
708   int menuretval;
709   int retvalue;
710   float retvec[4];
711 
712   /* menu direction */
713   int direction;
714 
715   /* Previous values so we don't resize or reposition on refresh. */
716   rctf prev_block_rect;
717   rctf prev_butrct;
718   short prev_dir1, prev_dir2;
719   int prev_bounds_offset[2];
720 
721   /* Maximum estimated size to avoid having to reposition on refresh. */
722   float max_size_x, max_size_y;
723 
724   /* #ifdef USE_DRAG_POPUP */
725   bool is_grab;
726   int grab_xy_prev[2];
727   /* #endif */
728 };
729 
730 /* -------------------------------------------------------------------- */
731 /* interface_region_*.c */
732 
733 /* interface_region_tooltip.c */
734 /* exposed as public API in UI_interface.h */
735 
736 /* interface_region_color_picker.c */
737 void ui_rgb_to_color_picker_compat_v(const float rgb[3], float r_cp[3]);
738 void ui_rgb_to_color_picker_v(const float rgb[3], float r_cp[3]);
739 void ui_color_picker_to_rgb_v(const float r_cp[3], float rgb[3]);
740 void ui_color_picker_to_rgb(float r_cp0, float r_cp1, float r_cp2, float *r, float *g, float *b);
741 
742 bool ui_but_is_color_gamma(uiBut *but);
743 
744 void ui_scene_linear_to_color_picker_space(uiBut *but, float rgb[3]);
745 void ui_color_picker_to_scene_linear_space(uiBut *but, float rgb[3]);
746 
747 uiBlock *ui_block_func_COLOR(struct bContext *C, uiPopupBlockHandle *handle, void *arg_but);
748 ColorPicker *ui_block_colorpicker_create(struct uiBlock *block);
749 
750 /* interface_region_search.c */
751 /* Searchbox for string button */
752 struct ARegion *ui_searchbox_create_generic(struct bContext *C,
753                                             struct ARegion *butregion,
754                                             uiButSearch *search_but);
755 struct ARegion *ui_searchbox_create_operator(struct bContext *C,
756                                              struct ARegion *butregion,
757                                              uiButSearch *search_but);
758 struct ARegion *ui_searchbox_create_menu(struct bContext *C,
759                                          struct ARegion *butregion,
760                                          uiButSearch *search_but);
761 
762 bool ui_searchbox_inside(struct ARegion *region, int x, int y);
763 int ui_searchbox_find_index(struct ARegion *region, const char *name);
764 void ui_searchbox_update(struct bContext *C, struct ARegion *region, uiBut *but, const bool reset);
765 int ui_searchbox_autocomplete(struct bContext *C, struct ARegion *region, uiBut *but, char *str);
766 bool ui_searchbox_event(struct bContext *C,
767                         struct ARegion *region,
768                         uiBut *but,
769                         struct ARegion *butregion,
770                         const struct wmEvent *event);
771 bool ui_searchbox_apply(uiBut *but, struct ARegion *region);
772 void ui_searchbox_free(struct bContext *C, struct ARegion *region);
773 void ui_but_search_refresh(uiButSearch *but);
774 
775 /* interface_region_menu_popup.c */
776 int ui_but_menu_step(uiBut *but, int direction);
777 bool ui_but_menu_step_poll(const uiBut *but);
778 uiBut *ui_popup_menu_memory_get(struct uiBlock *block);
779 void ui_popup_menu_memory_set(uiBlock *block, struct uiBut *but);
780 
781 uiBlock *ui_popup_block_refresh(struct bContext *C,
782                                 uiPopupBlockHandle *handle,
783                                 struct ARegion *butregion,
784                                 uiBut *but);
785 
786 uiPopupBlockHandle *ui_popup_block_create(struct bContext *C,
787                                           struct ARegion *butregion,
788                                           uiBut *but,
789                                           uiBlockCreateFunc create_func,
790                                           uiBlockHandleCreateFunc handle_create_func,
791                                           void *arg,
792                                           void (*arg_free)(void *arg));
793 uiPopupBlockHandle *ui_popup_menu_create(struct bContext *C,
794                                          struct ARegion *butregion,
795                                          uiBut *but,
796                                          uiMenuCreateFunc menu_func,
797                                          void *arg);
798 
799 /* interface_region_popover.c */
800 uiPopupBlockHandle *ui_popover_panel_create(struct bContext *C,
801                                             struct ARegion *butregion,
802                                             uiBut *but,
803                                             uiMenuCreateFunc menu_func,
804                                             void *arg);
805 
806 /* interface_region_menu_pie.c */
807 void ui_pie_menu_level_create(uiBlock *block,
808                               struct wmOperatorType *ot,
809                               const char *propname,
810                               struct IDProperty *properties,
811                               const EnumPropertyItem *items,
812                               int totitem,
813                               int context,
814                               int flag);
815 
816 /* interface_region_popup.c */
817 void ui_popup_translate(struct ARegion *region, const int mdiff[2]);
818 void ui_popup_block_free(struct bContext *C, uiPopupBlockHandle *handle);
819 void ui_popup_block_scrolltest(struct uiBlock *block);
820 
821 /* end interface_region_*.c */
822 
823 /* interface_panel.c */
824 extern int ui_handler_panel_region(struct bContext *C,
825                                    const struct wmEvent *event,
826                                    struct ARegion *region,
827                                    const uiBut *active_but);
828 extern void ui_draw_aligned_panel(const struct uiStyle *style,
829                                   const uiBlock *block,
830                                   const rcti *rect,
831                                   const bool show_pin,
832                                   const bool show_background,
833                                   const bool region_search_filter_active);
834 void ui_panel_tag_search_filter_match(struct Panel *panel);
835 
836 /* interface_draw.c */
837 extern void ui_draw_dropshadow(
838     const rctf *rct, float radius, float aspect, float alpha, int select);
839 
840 void ui_draw_gradient(const rcti *rect,
841                       const float hsv[3],
842                       const eButGradientType type,
843                       const float alpha);
844 
845 void ui_draw_but_TAB_outline(const rcti *rect,
846                              float rad,
847                              uchar highlight[3],
848                              uchar highlight_fade[3]);
849 void ui_draw_but_HISTOGRAM(struct ARegion *region,
850                            uiBut *but,
851                            const struct uiWidgetColors *wcol,
852                            const rcti *rect);
853 void ui_draw_but_WAVEFORM(struct ARegion *region,
854                           uiBut *but,
855                           const struct uiWidgetColors *wcol,
856                           const rcti *rect);
857 void ui_draw_but_VECTORSCOPE(struct ARegion *region,
858                              uiBut *but,
859                              const struct uiWidgetColors *wcol,
860                              const rcti *rect);
861 void ui_draw_but_COLORBAND(uiBut *but, const struct uiWidgetColors *wcol, const rcti *rect);
862 void ui_draw_but_UNITVEC(uiBut *but, const struct uiWidgetColors *wcol, const rcti *rect);
863 void ui_draw_but_CURVE(struct ARegion *region,
864                        uiBut *but,
865                        const struct uiWidgetColors *wcol,
866                        const rcti *rect);
867 void ui_draw_but_CURVEPROFILE(struct ARegion *region,
868                               uiBut *but,
869                               const struct uiWidgetColors *wcol,
870                               const rcti *rect);
871 void ui_draw_but_IMAGE(struct ARegion *region,
872                        uiBut *but,
873                        const struct uiWidgetColors *wcol,
874                        const rcti *rect);
875 void ui_draw_but_TRACKPREVIEW(struct ARegion *region,
876                               uiBut *but,
877                               const struct uiWidgetColors *wcol,
878                               const rcti *rect);
879 
880 /* interface_undo.c */
881 struct uiUndoStack_Text *ui_textedit_undo_stack_create(void);
882 void ui_textedit_undo_stack_destroy(struct uiUndoStack_Text *undo_stack);
883 void ui_textedit_undo_push(struct uiUndoStack_Text *undo_stack,
884                            const char *text,
885                            int cursor_index);
886 const char *ui_textedit_undo(struct uiUndoStack_Text *undo_stack,
887                              int direction,
888                              int *r_cursor_index);
889 
890 /* interface_handlers.c */
891 PointerRNA *ui_handle_afterfunc_add_operator(struct wmOperatorType *ot,
892                                              int opcontext,
893                                              bool create_props);
894 extern void ui_pan_to_scroll(const struct wmEvent *event, int *type, int *val);
895 extern void ui_but_activate_event(struct bContext *C, struct ARegion *region, uiBut *but);
896 extern void ui_but_activate_over(struct bContext *C, struct ARegion *region, uiBut *but);
897 extern void ui_but_execute_begin(struct bContext *C,
898                                  struct ARegion *region,
899                                  uiBut *but,
900                                  void **active_back);
901 extern void ui_but_execute_end(struct bContext *C,
902                                struct ARegion *region,
903                                uiBut *but,
904                                void *active_back);
905 extern void ui_but_active_free(const struct bContext *C, uiBut *but);
906 extern int ui_but_menu_direction(uiBut *but);
907 extern void ui_but_text_password_hide(char password_str[UI_MAX_DRAW_STR],
908                                       uiBut *but,
909                                       const bool restore);
910 extern uiBut *ui_but_find_select_in_enum(uiBut *but, int direction);
911 bool ui_but_is_editing(const uiBut *but);
912 float ui_block_calc_pie_segment(struct uiBlock *block, const float event_xy[2]);
913 
914 void ui_but_add_shortcut(uiBut *but, const char *shortcut_str, const bool do_strip);
915 void ui_but_clipboard_free(void);
916 bool ui_but_rna_equals(const uiBut *a, const uiBut *b);
917 bool ui_but_rna_equals_ex(const uiBut *but,
918                           const PointerRNA *ptr,
919                           const PropertyRNA *prop,
920                           int index);
921 uiBut *ui_but_find_old(uiBlock *block_old, const uiBut *but_new);
922 uiBut *ui_but_find_new(uiBlock *block_new, const uiBut *but_old);
923 
924 #ifdef WITH_INPUT_IME
925 void ui_but_ime_reposition(uiBut *but, int x, int y, bool complete);
926 struct wmIMEData *ui_but_ime_data_get(uiBut *but);
927 #endif
928 
929 /* interface_widgets.c */
930 
931 /* Widget shader parameters, must match the shader layout. */
932 typedef struct uiWidgetBaseParameters {
933   rctf recti, rect;
934   float radi, rad;
935   float facxi, facyi;
936   float round_corners[4];
937   float color_inner1[4], color_inner2[4];
938   float color_outline[4], color_emboss[4];
939   float color_tria[4];
940   float tria1_center[2], tria2_center[2];
941   float tria1_size, tria2_size;
942   float shade_dir;
943   /* We pack alpha check and discard factor in alpha_discard.
944    * If the value is negative then we do alpha check.
945    * The absolute value itself is the discard factor.
946    * Initialize value to 1.0.f if you don't want discard */
947   float alpha_discard;
948   float tria_type;
949   float _pad[3];
950 } uiWidgetBaseParameters;
951 
952 enum {
953   ROUNDBOX_TRIA_NONE = 0,
954   ROUNDBOX_TRIA_ARROWS,
955   ROUNDBOX_TRIA_SCROLL,
956   ROUNDBOX_TRIA_MENU,
957   ROUNDBOX_TRIA_CHECK,
958   ROUNDBOX_TRIA_HOLD_ACTION_ARROW,
959 
960   ROUNDBOX_TRIA_MAX, /* don't use */
961 };
962 
963 struct GPUBatch *ui_batch_roundbox_widget_get(void);
964 struct GPUBatch *ui_batch_roundbox_shadow_get(void);
965 
966 void ui_draw_anti_tria_rect(const rctf *rect, char dir, const float color[4]);
967 void ui_draw_menu_back(struct uiStyle *style, uiBlock *block, rcti *rect);
968 void ui_draw_box_opaque(rcti *rect, int roundboxalign);
969 void ui_draw_popover_back(struct ARegion *region,
970                           struct uiStyle *style,
971                           uiBlock *block,
972                           rcti *rect);
973 void ui_draw_pie_center(uiBlock *block);
974 const struct uiWidgetColors *ui_tooltip_get_theme(void);
975 
976 void ui_draw_widget_menu_back_color(const rcti *rect, bool use_shadow, const float color[4]);
977 void ui_draw_widget_menu_back(const rcti *rect, bool use_shadow);
978 void ui_draw_tooltip_background(const struct uiStyle *UNUSED(style), uiBlock *block, rcti *rect);
979 
980 extern void ui_draw_but(const struct bContext *C,
981                         struct ARegion *region,
982                         struct uiStyle *style,
983                         uiBut *but,
984                         rcti *rect);
985 
986 void ui_draw_menu_item(const struct uiFontStyle *fstyle,
987                        rcti *rect,
988                        const char *name,
989                        int iconid,
990                        int state,
991                        bool use_sep,
992                        int *r_xmax);
993 void ui_draw_preview_item(
994     const struct uiFontStyle *fstyle, rcti *rect, const char *name, int iconid, int state);
995 
996 #define UI_TEXT_MARGIN_X 0.4f
997 #define UI_POPUP_MARGIN (UI_DPI_FAC * 12)
998 /* margin at top of screen for popups */
999 #define UI_POPUP_MENU_TOP (int)(8 * UI_DPI_FAC)
1000 
1001 #define UI_PIXEL_AA_JITTER 8
1002 extern const float ui_pixel_jitter[UI_PIXEL_AA_JITTER][2];
1003 
1004 /* interface_style.c */
1005 void uiStyleInit(void);
1006 
1007 /* interface_icons.c */
1008 void ui_icon_ensure_deferred(const struct bContext *C, const int icon_id, const bool big);
1009 int ui_id_icon_get(const struct bContext *C, struct ID *id, const bool big);
1010 
1011 /* interface_icons_event.c */
1012 void icon_draw_rect_input(
1013     float x, float y, int w, int h, float alpha, short event_type, short event_value);
1014 
1015 /* resources.c */
1016 void ui_resources_init(void);
1017 void ui_resources_free(void);
1018 
1019 /* interface_layout.c */
1020 void ui_layout_add_but(uiLayout *layout, uiBut *but);
1021 bool ui_layout_replace_but_ptr(uiLayout *layout, const void *old_but_ptr, uiBut *new_but);
1022 uiBut *ui_but_add_search(uiBut *but,
1023                          PointerRNA *ptr,
1024                          PropertyRNA *prop,
1025                          PointerRNA *searchptr,
1026                          PropertyRNA *searchprop);
1027 void ui_layout_list_set_labels_active(uiLayout *layout);
1028 /* menu callback */
1029 void ui_item_menutype_func(struct bContext *C, struct uiLayout *layout, void *arg_mt);
1030 void ui_item_paneltype_func(struct bContext *C, struct uiLayout *layout, void *arg_pt);
1031 
1032 /* interface_button_group.c */
1033 void ui_block_new_button_group(uiBlock *block, short flag);
1034 void ui_button_group_add_but(uiBlock *block, uiBut *but);
1035 void ui_button_group_replace_but_ptr(uiBlock *block, const void *old_but_ptr, uiBut *new_but);
1036 void ui_block_free_button_groups(uiBlock *block);
1037 
1038 /* interface_align.c */
1039 bool ui_but_can_align(const uiBut *but) ATTR_WARN_UNUSED_RESULT;
1040 int ui_but_align_opposite_to_area_align_get(const struct ARegion *region) ATTR_WARN_UNUSED_RESULT;
1041 void ui_block_align_calc(uiBlock *block, const struct ARegion *region);
1042 
1043 /* interface_anim.c */
1044 void ui_but_anim_flag(uiBut *but, const struct AnimationEvalContext *anim_eval_context);
1045 void ui_but_anim_copy_driver(struct bContext *C);
1046 void ui_but_anim_paste_driver(struct bContext *C);
1047 bool ui_but_anim_expression_get(uiBut *but, char *str, size_t maxlen);
1048 bool ui_but_anim_expression_set(uiBut *but, const char *str);
1049 bool ui_but_anim_expression_create(uiBut *but, const char *str);
1050 void ui_but_anim_autokey(struct bContext *C, uiBut *but, struct Scene *scene, float cfra);
1051 
1052 void ui_but_anim_decorate_cb(struct bContext *C, void *arg_but, void *arg_dummy);
1053 void ui_but_anim_decorate_update_from_flag(uiButDecorator *but);
1054 
1055 /* interface_query.c */
1056 bool ui_but_is_editable(const uiBut *but) ATTR_WARN_UNUSED_RESULT;
1057 bool ui_but_is_editable_as_text(const uiBut *but) ATTR_WARN_UNUSED_RESULT;
1058 bool ui_but_is_toggle(const uiBut *but) ATTR_WARN_UNUSED_RESULT;
1059 bool ui_but_is_interactive(const uiBut *but, const bool labeledit) ATTR_WARN_UNUSED_RESULT;
1060 bool ui_but_is_popover_once_compat(const uiBut *but) ATTR_WARN_UNUSED_RESULT;
1061 bool ui_but_has_array_value(const uiBut *but) ATTR_WARN_UNUSED_RESULT;
1062 int ui_but_icon(const uiBut *but);
1063 void ui_but_pie_dir(RadialDirection dir, float vec[2]);
1064 
1065 bool ui_but_is_cursor_warp(const uiBut *but) ATTR_WARN_UNUSED_RESULT;
1066 
1067 bool ui_but_contains_pt(const uiBut *but, float mx, float my) ATTR_WARN_UNUSED_RESULT;
1068 bool ui_but_contains_rect(const uiBut *but, const rctf *rect);
1069 bool ui_but_contains_point_px_icon(const uiBut *but,
1070                                    struct ARegion *region,
1071                                    const struct wmEvent *event) ATTR_WARN_UNUSED_RESULT;
1072 bool ui_but_contains_point_px(const uiBut *but, const struct ARegion *region, int x, int y)
1073     ATTR_WARN_UNUSED_RESULT;
1074 
1075 uiBut *ui_list_find_mouse_over(struct ARegion *region,
1076                                const struct wmEvent *event) ATTR_WARN_UNUSED_RESULT;
1077 
1078 uiBut *ui_but_find_mouse_over_ex(struct ARegion *region,
1079                                  const int x,
1080                                  const int y,
1081                                  const bool labeledit) ATTR_WARN_UNUSED_RESULT;
1082 uiBut *ui_but_find_mouse_over(struct ARegion *region,
1083                               const struct wmEvent *event) ATTR_WARN_UNUSED_RESULT;
1084 uiBut *ui_but_find_rect_over(const struct ARegion *region,
1085                              const rcti *rect_px) ATTR_WARN_UNUSED_RESULT;
1086 
1087 uiBut *ui_list_find_mouse_over_ex(struct ARegion *region, int x, int y) ATTR_WARN_UNUSED_RESULT;
1088 
1089 bool ui_but_contains_password(const uiBut *but) ATTR_WARN_UNUSED_RESULT;
1090 
1091 size_t ui_but_drawstr_len_without_sep_char(const uiBut *but);
1092 size_t ui_but_tip_len_only_first_line(const uiBut *but);
1093 
1094 uiBut *ui_but_prev(uiBut *but) ATTR_WARN_UNUSED_RESULT;
1095 uiBut *ui_but_next(uiBut *but) ATTR_WARN_UNUSED_RESULT;
1096 uiBut *ui_but_first(uiBlock *block) ATTR_WARN_UNUSED_RESULT;
1097 uiBut *ui_but_last(uiBlock *block) ATTR_WARN_UNUSED_RESULT;
1098 
1099 bool ui_block_is_menu(const uiBlock *block) ATTR_WARN_UNUSED_RESULT;
1100 bool ui_block_is_popover(const uiBlock *block) ATTR_WARN_UNUSED_RESULT;
1101 bool ui_block_is_pie_menu(const uiBlock *block) ATTR_WARN_UNUSED_RESULT;
1102 bool ui_block_is_popup_any(const uiBlock *block) ATTR_WARN_UNUSED_RESULT;
1103 
1104 uiBlock *ui_block_find_mouse_over_ex(const struct ARegion *region,
1105                                      const int x,
1106                                      const int y,
1107                                      bool only_clip);
1108 uiBlock *ui_block_find_mouse_over(const struct ARegion *region,
1109                                   const struct wmEvent *event,
1110                                   bool only_clip);
1111 
1112 uiBut *ui_region_find_first_but_test_flag(struct ARegion *region,
1113                                           int flag_include,
1114                                           int flag_exclude);
1115 uiBut *ui_region_find_active_but(struct ARegion *region) ATTR_WARN_UNUSED_RESULT;
1116 bool ui_region_contains_point_px(const struct ARegion *region,
1117                                  int x,
1118                                  int y) ATTR_WARN_UNUSED_RESULT;
1119 bool ui_region_contains_rect_px(const struct ARegion *region, const rcti *rect_px);
1120 
1121 struct ARegion *ui_screen_region_find_mouse_over_ex(struct bScreen *screen, int x, int y);
1122 struct ARegion *ui_screen_region_find_mouse_over(struct bScreen *screen,
1123                                                  const struct wmEvent *event);
1124 
1125 /* interface_context_menu.c */
1126 bool ui_popup_context_menu_for_button(struct bContext *C, uiBut *but);
1127 void ui_popup_context_menu_for_panel(struct bContext *C,
1128                                      struct ARegion *region,
1129                                      struct Panel *panel);
1130 
1131 /* interface_eyedropper.c */
1132 struct wmKeyMap *eyedropper_modal_keymap(struct wmKeyConfig *keyconf);
1133 struct wmKeyMap *eyedropper_colorband_modal_keymap(struct wmKeyConfig *keyconf);
1134 
1135 /* interface_eyedropper_color.c */
1136 void UI_OT_eyedropper_color(struct wmOperatorType *ot);
1137 
1138 /* interface_eyedropper_colorband.c */
1139 void UI_OT_eyedropper_colorramp(struct wmOperatorType *ot);
1140 void UI_OT_eyedropper_colorramp_point(struct wmOperatorType *ot);
1141 
1142 /* interface_eyedropper_datablock.c */
1143 void UI_OT_eyedropper_id(struct wmOperatorType *ot);
1144 
1145 /* interface_eyedropper_depth.c */
1146 void UI_OT_eyedropper_depth(struct wmOperatorType *ot);
1147 
1148 /* interface_eyedropper_driver.c */
1149 void UI_OT_eyedropper_driver(struct wmOperatorType *ot);
1150 
1151 /* interface_eyedropper_gpencil_color.c */
1152 void UI_OT_eyedropper_gpencil_color(struct wmOperatorType *ot);
1153 
1154 /**
1155  * For use with #ui_rna_collection_search_update_fn.
1156  */
1157 typedef struct uiRNACollectionSearch {
1158   PointerRNA target_ptr;
1159   PropertyRNA *target_prop;
1160 
1161   PointerRNA search_ptr;
1162   PropertyRNA *search_prop;
1163 
1164   uiBut *search_but;
1165   /* Let UI_butstore_ API update search_but pointer above over redraws. */
1166   uiButStore *butstore;
1167   /* Block has to be stored for freeing butstore (uiBut.block doesn't work with undo). */
1168   uiBlock *butstore_block;
1169 } uiRNACollectionSearch;
1170 void ui_rna_collection_search_update_fn(const struct bContext *C,
1171                                         void *arg,
1172                                         const char *str,
1173                                         uiSearchItems *items);
1174 
1175 /* interface_ops.c */
1176 bool ui_jump_to_target_button_poll(struct bContext *C);
1177 
1178 /* interface_queries.c */
1179 void ui_interface_tag_script_reload_queries(void);
1180