2 * Copyright (c) 2003 Joe English. Freely redistributable.
4 * Declarations for Tk theme engine.
16 # define MODULE_SCOPE extern "C"
18 # define MODULE_SCOPE extern
22 #define TTKAPI MODULE_SCOPE
24 /* Ttk syncs to the Tk version & patchlevel */
25 #define TTK_VERSION TK_VERSION
26 #define TTK_PATCH_LEVEL TK_PATCH_LEVEL
28 /*------------------------------------------------------------------------
29 * +++ Defaults for element option specifications.
31 #define DEFAULT_FONT "TkDefaultFont"
33 #define DEFAULT_BACKGROUND "systemTextBackgroundColor"
34 #define DEFAULT_FOREGROUND "systemTextColor"
36 #define DEFAULT_BACKGROUND "#d9d9d9"
37 #define DEFAULT_FOREGROUND "black"
39 /*------------------------------------------------------------------------
41 * Keep in sync with stateNames[] in tkstate.c.
44 typedef unsigned int Ttk_State;
46 #define TTK_STATE_ACTIVE (1<<0)
47 #define TTK_STATE_DISABLED (1<<1)
48 #define TTK_STATE_FOCUS (1<<2)
49 #define TTK_STATE_PRESSED (1<<3)
50 #define TTK_STATE_SELECTED (1<<4)
51 #define TTK_STATE_BACKGROUND (1<<5)
52 #define TTK_STATE_ALTERNATE (1<<6)
53 #define TTK_STATE_INVALID (1<<7)
54 #define TTK_STATE_READONLY (1<<8)
55 #define TTK_STATE_HOVER (1<<9)
56 #define TTK_STATE_USER6 (1<<10)
57 #define TTK_STATE_USER5 (1<<11)
58 #define TTK_STATE_USER4 (1<<12)
59 #define TTK_STATE_USER3 (1<<13)
60 #define TTK_STATE_USER2 (1<<14)
61 #define TTK_STATE_USER1 (1<<15)
63 /* Maintenance note: if you get all the way to "USER1",
68 unsigned int onbits; /* bits to turn on */
69 unsigned int offbits; /* bits to turn off */
72 #define Ttk_StateMatches(state, spec) \
73 (((state) & ((spec)->onbits|(spec)->offbits)) == (spec)->onbits)
75 #define Ttk_ModifyState(state, spec) \
76 (((state) & ~(spec)->offbits) | (spec)->onbits)
78 TTKAPI int Ttk_GetStateSpecFromObj(Tcl_Interp *, Tcl_Obj *, Ttk_StateSpec *);
79 TTKAPI Tcl_Obj *Ttk_NewStateSpecObj(unsigned int onbits,unsigned int offbits);
81 /*------------------------------------------------------------------------
82 * +++ State maps and state tables.
84 typedef Tcl_Obj *Ttk_StateMap;
86 TTKAPI Ttk_StateMap Ttk_GetStateMapFromObj(Tcl_Interp *, Tcl_Obj *);
87 TTKAPI Tcl_Obj *Ttk_StateMapLookup(Tcl_Interp*, Ttk_StateMap, Ttk_State);
90 * Table for looking up an integer index based on widget state:
94 int index; /* Value to return if this entry matches */
95 unsigned int onBits; /* Bits which must be set */
96 unsigned int offBits; /* Bits which must be cleared */
99 TTKAPI int Ttk_StateTableLookup(Ttk_StateTable map[], Ttk_State);
101 /*------------------------------------------------------------------------
103 * Used to represent internal padding and borders.
113 TTKAPI int Ttk_GetPaddingFromObj(Tcl_Interp*,Tk_Window,Tcl_Obj*,Ttk_Padding*);
114 TTKAPI int Ttk_GetBorderFromObj(Tcl_Interp*,Tcl_Obj*,Ttk_Padding*);
116 TTKAPI Ttk_Padding Ttk_MakePadding(short l, short t, short r, short b);
117 TTKAPI Ttk_Padding Ttk_UniformPadding(short borderWidth);
118 TTKAPI Ttk_Padding Ttk_AddPadding(Ttk_Padding, Ttk_Padding);
119 TTKAPI Ttk_Padding Ttk_RelievePadding(Ttk_Padding, int relief, int n);
121 #define Ttk_PaddingWidth(p) ((p).left + (p).right)
122 #define Ttk_PaddingHeight(p) ((p).top + (p).bottom)
124 #define Ttk_SetMargins(tkwin, pad) \
125 Tk_SetInternalBorderEx(tkwin, pad.left, pad.right, pad.top, pad.bottom)
127 /*------------------------------------------------------------------------
129 * Used to represent rectangular regions
131 typedef struct /* Hey, this is an XRectangle! */
139 TTKAPI Ttk_Box Ttk_MakeBox(int x, int y, int width, int height);
140 TTKAPI int Ttk_BoxContains(Ttk_Box, int x, int y);
142 #define Ttk_WinBox(tkwin) Ttk_MakeBox(0,0,Tk_Width(tkwin),Tk_Height(tkwin))
144 /*------------------------------------------------------------------------
145 * +++ Layout utilities.
148 TTK_SIDE_LEFT, TTK_SIDE_TOP, TTK_SIDE_RIGHT, TTK_SIDE_BOTTOM
151 typedef unsigned int Ttk_Sticky;
154 * -sticky bits for Ttk_StickBox:
156 #define TTK_STICK_W (0x1)
157 #define TTK_STICK_E (0x2)
158 #define TTK_STICK_N (0x4)
159 #define TTK_STICK_S (0x8)
162 * Aliases and useful combinations:
164 #define TTK_FILL_X (0x3) /* -sticky ew */
165 #define TTK_FILL_Y (0xC) /* -sticky ns */
166 #define TTK_FILL_BOTH (0xF) /* -sticky nswe */
168 TTKAPI int Ttk_GetStickyFromObj(Tcl_Interp *, Tcl_Obj *, Ttk_Sticky *);
169 TTKAPI Tcl_Obj *Ttk_NewStickyObj(Ttk_Sticky);
172 * Extra bits for position specifications (combine -side and -sticky)
175 typedef unsigned int Ttk_PositionSpec; /* See below */
177 #define TTK_PACK_LEFT (0x10) /* pack at left of current parcel */
178 #define TTK_PACK_RIGHT (0x20) /* pack at right of current parcel */
179 #define TTK_PACK_TOP (0x40) /* pack at top of current parcel */
180 #define TTK_PACK_BOTTOM (0x80) /* pack at bottom of current parcel */
181 #define TTK_EXPAND (0x100) /* use entire parcel */
182 #define TTK_BORDER (0x200) /* draw this element after children */
183 #define TTK_UNIT (0x400) /* treat descendants as a part of element */
186 * Extra bits for layout specifications
188 #define _TTK_CHILDREN (0x1000)/* for LayoutSpecs -- children follow */
189 #define _TTK_LAYOUT_END (0x2000)/* for LayoutSpecs -- end of child list */
190 #define _TTK_LAYOUT (0x4000)/* for LayoutSpec tables -- define layout */
192 #define _TTK_MASK_STICK (0x0F) /* See Ttk_UnparseLayout() */
193 #define _TTK_MASK_PACK (0xF0) /* See Ttk_UnparseLayout(), packStrings */
195 TTKAPI Ttk_Box Ttk_PackBox(Ttk_Box *cavity, int w, int h, Ttk_Side side);
196 TTKAPI Ttk_Box Ttk_StickBox(Ttk_Box parcel, int w, int h, Ttk_Sticky sticky);
197 TTKAPI Ttk_Box Ttk_AnchorBox(Ttk_Box parcel, int w, int h, Tk_Anchor anchor);
198 TTKAPI Ttk_Box Ttk_PadBox(Ttk_Box b, Ttk_Padding p);
199 TTKAPI Ttk_Box Ttk_ExpandBox(Ttk_Box b, Ttk_Padding p);
200 TTKAPI Ttk_Box Ttk_PlaceBox(Ttk_Box *cavity, int w,int h, Ttk_Side,Ttk_Sticky);
201 TTKAPI Ttk_Box Ttk_PositionBox(Ttk_Box *cavity, int w, int h, Ttk_PositionSpec);
203 /*------------------------------------------------------------------------
206 MODULE_SCOPE void Ttk_StylePkgInit(Tcl_Interp *);
208 typedef struct Ttk_Theme_ *Ttk_Theme;
209 typedef struct Ttk_ElementClass_ Ttk_ElementClass;
210 typedef struct Ttk_Layout_ *Ttk_Layout;
211 typedef struct Ttk_LayoutNode_ *Ttk_Element;
212 typedef struct Ttk_Style_ *Ttk_Style;
214 TTKAPI Ttk_Theme Ttk_GetTheme(Tcl_Interp *interp, const char *name);
215 TTKAPI Ttk_Theme Ttk_GetDefaultTheme(Tcl_Interp *interp);
216 TTKAPI Ttk_Theme Ttk_GetCurrentTheme(Tcl_Interp *interp);
218 TTKAPI Ttk_Theme Ttk_CreateTheme(
219 Tcl_Interp *interp, const char *name, Ttk_Theme parent);
221 typedef int (Ttk_ThemeEnabledProc)(Ttk_Theme theme, void *clientData);
222 MODULE_SCOPE void Ttk_SetThemeEnabledProc(Ttk_Theme, Ttk_ThemeEnabledProc, void *);
224 MODULE_SCOPE int Ttk_UseTheme(Tcl_Interp *, Ttk_Theme);
226 typedef void (Ttk_CleanupProc)(void *clientData);
227 TTKAPI void Ttk_RegisterCleanup(
228 Tcl_Interp *interp, void *deleteData, Ttk_CleanupProc *cleanupProc);
230 /*------------------------------------------------------------------------
234 enum TTKStyleVersion2 { TK_STYLE_VERSION_2 = 2 };
236 typedef void (Ttk_ElementSizeProc)(void *clientData, void *elementRecord,
237 Tk_Window tkwin, int *widthPtr, int *heightPtr, Ttk_Padding*);
238 typedef void (Ttk_ElementDrawProc)(void *clientData, void *elementRecord,
239 Tk_Window tkwin, Drawable d, Ttk_Box b, Ttk_State state);
241 typedef struct Ttk_ElementOptionSpec
243 const char *optionName; /* Command-line name of the widget option */
244 Tk_OptionType type; /* Accepted option types */
245 int offset; /* Offset of Tcl_Obj* field in element record */
246 const char *defaultValue; /* Default value to used if resource missing */
247 } Ttk_ElementOptionSpec;
249 #define TK_OPTION_ANY TK_OPTION_STRING
251 typedef struct Ttk_ElementSpec {
252 enum TTKStyleVersion2 version; /* Version of the style support. */
253 size_t elementSize; /* Size of element record */
254 Ttk_ElementOptionSpec *options; /* List of options, NULL-terminated */
255 Ttk_ElementSizeProc *size; /* Compute min size and padding */
256 Ttk_ElementDrawProc *draw; /* Draw the element */
259 TTKAPI Ttk_ElementClass *Ttk_RegisterElement(
260 Tcl_Interp *interp, Ttk_Theme theme, const char *elementName,
261 Ttk_ElementSpec *, void *clientData);
263 typedef int (*Ttk_ElementFactory)
264 (Tcl_Interp *, void *clientData,
265 Ttk_Theme, const char *elementName, int objc, Tcl_Obj *const objv[]);
267 TTKAPI int Ttk_RegisterElementFactory(
268 Tcl_Interp *, const char *name, Ttk_ElementFactory, void *clientData);
271 * Null element implementation:
272 * has no geometry or layout; may be used as a stub or placeholder.
279 MODULE_SCOPE void TtkNullElementSize
280 (void *, void *, Tk_Window, int *, int *, Ttk_Padding *);
281 MODULE_SCOPE void TtkNullElementDraw
282 (void *, void *, Tk_Window, Drawable, Ttk_Box, Ttk_State);
283 MODULE_SCOPE Ttk_ElementOptionSpec TtkNullElementOptions[];
284 MODULE_SCOPE Ttk_ElementSpec ttkNullElementSpec;
286 /*------------------------------------------------------------------------
287 * +++ Layout templates.
290 const char * elementName;
292 } TTKLayoutInstruction, *Ttk_LayoutSpec;
294 #define TTK_BEGIN_LAYOUT_TABLE(name) \
295 static TTKLayoutInstruction name[] = {
296 #define TTK_LAYOUT(name, content) \
297 { name, _TTK_CHILDREN|_TTK_LAYOUT }, \
299 { 0, _TTK_LAYOUT_END },
300 #define TTK_GROUP(name, flags, children) \
301 { name, flags | _TTK_CHILDREN }, \
303 { 0, _TTK_LAYOUT_END },
304 #define TTK_NODE(name, flags) { name, flags },
305 #define TTK_END_LAYOUT_TABLE { 0, _TTK_LAYOUT | _TTK_LAYOUT_END } };
307 #define TTK_BEGIN_LAYOUT(name) static TTKLayoutInstruction name[] = {
308 #define TTK_END_LAYOUT { 0, _TTK_LAYOUT_END } };
310 TTKAPI void Ttk_RegisterLayout(
311 Ttk_Theme theme, const char *className, Ttk_LayoutSpec layoutSpec);
313 TTKAPI void Ttk_RegisterLayouts(
314 Ttk_Theme theme, Ttk_LayoutSpec layoutTable);
316 /*------------------------------------------------------------------------
317 * +++ Layout instances.
320 MODULE_SCOPE Ttk_Layout Ttk_CreateLayout(
321 Tcl_Interp *, Ttk_Theme, const char *name,
322 void *recordPtr, Tk_OptionTable, Tk_Window tkwin);
324 MODULE_SCOPE Ttk_Layout Ttk_CreateSublayout(
325 Tcl_Interp *, Ttk_Theme, Ttk_Layout, const char *name, Tk_OptionTable);
327 MODULE_SCOPE void Ttk_FreeLayout(Ttk_Layout);
329 MODULE_SCOPE void Ttk_LayoutSize(Ttk_Layout,Ttk_State,int *widthPtr,int *heightPtr);
330 MODULE_SCOPE void Ttk_PlaceLayout(Ttk_Layout, Ttk_State, Ttk_Box);
331 MODULE_SCOPE void Ttk_DrawLayout(Ttk_Layout, Ttk_State, Drawable);
333 MODULE_SCOPE void Ttk_RebindSublayout(Ttk_Layout, void *recordPtr);
335 MODULE_SCOPE Ttk_Element Ttk_IdentifyElement(Ttk_Layout, int x, int y);
336 MODULE_SCOPE Ttk_Element Ttk_FindElement(Ttk_Layout, const char *nodeName);
338 MODULE_SCOPE const char *Ttk_ElementName(Ttk_Element);
339 MODULE_SCOPE Ttk_Box Ttk_ElementParcel(Ttk_Element);
341 MODULE_SCOPE Ttk_Box Ttk_ClientRegion(Ttk_Layout, const char *elementName);
343 MODULE_SCOPE Ttk_Box Ttk_LayoutNodeInternalParcel(Ttk_Layout,Ttk_Element);
344 MODULE_SCOPE Ttk_Padding Ttk_LayoutNodeInternalPadding(Ttk_Layout,Ttk_Element);
345 MODULE_SCOPE void Ttk_LayoutNodeReqSize(Ttk_Layout, Ttk_Element, int *w, int *h);
347 MODULE_SCOPE void Ttk_PlaceElement(Ttk_Layout, Ttk_Element, Ttk_Box);
348 MODULE_SCOPE void Ttk_ChangeElementState(Ttk_Element,unsigned set,unsigned clr);
350 MODULE_SCOPE Tcl_Obj *Ttk_QueryOption(Ttk_Layout, const char *, Ttk_State);
352 TTKAPI Ttk_Style Ttk_LayoutStyle(Ttk_Layout);
353 TTKAPI Tcl_Obj *Ttk_StyleDefault(Ttk_Style, const char *optionName);
354 TTKAPI Tcl_Obj *Ttk_StyleMap(Ttk_Style, const char *optionName, Ttk_State);
356 /*------------------------------------------------------------------------
357 * +++ Resource cache.
358 * See resource.c for explanation.
361 typedef struct Ttk_ResourceCache_ *Ttk_ResourceCache;
362 MODULE_SCOPE Ttk_ResourceCache Ttk_CreateResourceCache(Tcl_Interp *);
363 MODULE_SCOPE void Ttk_FreeResourceCache(Ttk_ResourceCache);
365 MODULE_SCOPE Ttk_ResourceCache Ttk_GetResourceCache(Tcl_Interp*);
366 MODULE_SCOPE Tcl_Obj *Ttk_UseFont(Ttk_ResourceCache, Tk_Window, Tcl_Obj *);
367 MODULE_SCOPE Tcl_Obj *Ttk_UseColor(Ttk_ResourceCache, Tk_Window, Tcl_Obj *);
368 MODULE_SCOPE Tcl_Obj *Ttk_UseBorder(Ttk_ResourceCache, Tk_Window, Tcl_Obj *);
369 MODULE_SCOPE Tk_Image Ttk_UseImage(Ttk_ResourceCache, Tk_Window, Tcl_Obj *);
371 MODULE_SCOPE void Ttk_RegisterNamedColor(Ttk_ResourceCache, const char *, XColor *);
373 /*------------------------------------------------------------------------
374 * +++ Image specifications.
377 typedef struct TtkImageSpec Ttk_ImageSpec;
378 TTKAPI Ttk_ImageSpec *TtkGetImageSpec(Tcl_Interp *, Tk_Window, Tcl_Obj *);
379 TTKAPI Ttk_ImageSpec *TtkGetImageSpecEx(Tcl_Interp *, Tk_Window, Tcl_Obj *,
380 Tk_ImageChangedProc *, ClientData);
381 TTKAPI void TtkFreeImageSpec(Ttk_ImageSpec *);
382 TTKAPI Tk_Image TtkSelectImage(Ttk_ImageSpec *, Ttk_State);
384 /*------------------------------------------------------------------------
385 * +++ Miscellaneous enumerations.
386 * Other stuff that element implementations need to know about.
388 typedef enum /* -default option values */
390 TTK_BUTTON_DEFAULT_NORMAL, /* widget defaultable */
391 TTK_BUTTON_DEFAULT_ACTIVE, /* currently the default widget */
392 TTK_BUTTON_DEFAULT_DISABLED /* not defaultable */
393 } Ttk_ButtonDefaultState;
395 TTKAPI int Ttk_GetButtonDefaultStateFromObj(Tcl_Interp *, Tcl_Obj *, int *);
397 typedef enum /* -compound option values */
399 TTK_COMPOUND_NONE, /* image if specified, otherwise text */
400 TTK_COMPOUND_TEXT, /* text only */
401 TTK_COMPOUND_IMAGE, /* image only */
402 TTK_COMPOUND_CENTER, /* text overlays image */
403 TTK_COMPOUND_TOP, /* image above text */
404 TTK_COMPOUND_BOTTOM, /* image below text */
405 TTK_COMPOUND_LEFT, /* image to left of text */
406 TTK_COMPOUND_RIGHT /* image to right of text */
409 TTKAPI int Ttk_GetCompoundFromObj(Tcl_Interp *, Tcl_Obj *, int *);
411 typedef enum { /* -orient option values */
412 TTK_ORIENT_HORIZONTAL,
416 /*------------------------------------------------------------------------
420 typedef struct TtkEnsemble {
421 const char *name; /* subcommand name */
422 Tcl_ObjCmdProc *command; /* subcommand implementation, OR: */
423 const struct TtkEnsemble *ensemble; /* subcommand ensemble */
426 MODULE_SCOPE int Ttk_InvokeEnsemble( /* Run an ensemble command */
427 const Ttk_Ensemble *commands, int cmdIndex,
428 void *clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]);
430 MODULE_SCOPE int TtkEnumerateHashTable(Tcl_Interp *, Tcl_HashTable *);
432 /*------------------------------------------------------------------------
433 * +++ Stub table declarations.
436 #include "ttkDecls.h"
439 * Drawing utilities for theme code:
440 * (@@@ find a better home for this)
442 typedef enum { ARROW_UP, ARROW_DOWN, ARROW_LEFT, ARROW_RIGHT } ArrowDirection;
443 MODULE_SCOPE void TtkArrowSize(int h, ArrowDirection, int *widthPtr, int *heightPtr);
444 MODULE_SCOPE void TtkDrawArrow(Display *, Drawable, GC, Ttk_Box, ArrowDirection);
445 MODULE_SCOPE void TtkFillArrow(Display *, Drawable, GC, Ttk_Box, ArrowDirection);
450 #endif /* _TTKTHEME */