1 /* 2 * This file is part of gtkD. 3 * 4 * gtkD is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU Lesser General Public License 6 * as published by the Free Software Foundation; either version 3 7 * of the License, or (at your option) any later version, with 8 * some exceptions, please read the COPYING file. 9 * 10 * gtkD is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU Lesser General Public License for more details. 14 * 15 * You should have received a copy of the GNU Lesser General Public License 16 * along with gtkD; if not, write to the Free Software 17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA 18 */ 19 20 // generated automatically - do not change 21 // find conversion definition on APILookup.txt 22 // implement new conversion functionalities on the wrap.utils pakage 23 24 /* 25 * Conversion parameters: 26 * inFile = pango-Layout-Objects.html 27 * outPack = pango 28 * outFile = PgLayout 29 * strct = PangoLayout 30 * realStrct= 31 * ctorStrct= 32 * clss = PgLayout 33 * interf = 34 * class Code: Yes 35 * interface Code: No 36 * template for: 37 * extend = 38 * implements: 39 * prefixes: 40 * - pango_layout_ 41 * omit structs: 42 * omit prefixes: 43 * - pango_layout_iter_ 44 * - pango_layout_line_ 45 * omit code: 46 * - pango_layout_set_text 47 * omit signals: 48 * imports: 49 * - glib.Str 50 * - pango.PgLayoutLine 51 * - pango.PgContext 52 * - pango.PgAttributeList 53 * - pango.PgFontDescription 54 * - pango.PgTabArray 55 * - pango.PgLayoutIter 56 * - glib.ListSG 57 * structWrap: 58 * - GSList* -> ListSG 59 * - PangoAttrList* -> PgAttributeList 60 * - PangoContext* -> PgContext 61 * - PangoFontDescription* -> PgFontDescription 62 * - PangoLayout* -> PgLayout 63 * - PangoLayoutIter* -> PgLayoutIter 64 * - PangoLayoutLine* -> PgLayoutLine 65 * - PangoTabArray* -> PgTabArray 66 * module aliases: 67 * local aliases: 68 * overrides: 69 */ 70 71 module pango.PgLayout; 72 73 public import gtkc.pangotypes; 74 75 private import gtkc.pango; 76 private import glib.ConstructionException; 77 private import gobject.ObjectG; 78 79 private import glib.Str; 80 private import pango.PgLayoutLine; 81 private import pango.PgContext; 82 private import pango.PgAttributeList; 83 private import pango.PgFontDescription; 84 private import pango.PgTabArray; 85 private import pango.PgLayoutIter; 86 private import glib.ListSG; 87 88 89 private import gobject.ObjectG; 90 91 /** 92 * While complete access to the layout capabilities of Pango is provided 93 * using the detailed interfaces for itemization and shaping, using 94 * that functionality directly involves writing a fairly large amount 95 * of code. The objects and functions in this section provide a 96 * high-level driver for formatting entire paragraphs of text 97 * at once. 98 */ 99 public class PgLayout : ObjectG 100 { 101 102 /** the main Gtk struct */ 103 protected PangoLayout* pangoLayout; 104 105 106 /** Get the main Gtk struct */ 107 public PangoLayout* getPgLayoutStruct() 108 { 109 return pangoLayout; 110 } 111 112 113 /** the main Gtk struct as a void* */ 114 protected override void* getStruct() 115 { 116 return cast(void*)pangoLayout; 117 } 118 119 /** 120 * Sets our main struct and passes it to the parent class 121 */ 122 public this (PangoLayout* pangoLayout) 123 { 124 super(cast(GObject*)pangoLayout); 125 this.pangoLayout = pangoLayout; 126 } 127 128 protected override void setStruct(GObject* obj) 129 { 130 super.setStruct(obj); 131 pangoLayout = cast(PangoLayout*)obj; 132 } 133 134 /** 135 * Sets the text of the layout. 136 * Params: 137 * text = a UTF-8 string 138 */ 139 public void setText(string text) 140 { 141 // void pango_layout_set_text (PangoLayout *layout, const char *text, int length); 142 pango_layout_set_text(pangoLayout, Str.toStringz(text), cast(int) text.length); 143 } 144 145 146 /** 147 */ 148 149 /** 150 * Create a new PangoLayout object with attributes initialized to 151 * default values for a particular PangoContext. 152 * Params: 153 * context = a PangoContext 154 * Throws: ConstructionException GTK+ fails to create the object. 155 */ 156 public this (PgContext context) 157 { 158 // PangoLayout * pango_layout_new (PangoContext *context); 159 auto p = pango_layout_new((context is null) ? null : context.getPgContextStruct()); 160 if(p is null) 161 { 162 throw new ConstructionException("null returned by pango_layout_new((context is null) ? null : context.getPgContextStruct())"); 163 } 164 this(cast(PangoLayout*) p); 165 } 166 167 /** 168 * Does a deep copy-by-value of the src layout. The attribute list, 169 * tab array, and text from the original layout are all copied by 170 * value. 171 * Returns: the newly allocated PangoLayout, with a reference count of one, which should be freed with g_object_unref(). [transfer full] 172 */ 173 public PgLayout copy() 174 { 175 // PangoLayout * pango_layout_copy (PangoLayout *src); 176 auto p = pango_layout_copy(pangoLayout); 177 178 if(p is null) 179 { 180 return null; 181 } 182 183 return ObjectG.getDObject!(PgLayout)(cast(PangoLayout*) p); 184 } 185 186 /** 187 * Retrieves the PangoContext used for this layout. 188 * Returns: the PangoContext for the layout. This does not have an additional refcount added, so if you want to keep a copy of this around, you must reference it yourself. [transfer none] 189 */ 190 public PgContext getContext() 191 { 192 // PangoContext * pango_layout_get_context (PangoLayout *layout); 193 auto p = pango_layout_get_context(pangoLayout); 194 195 if(p is null) 196 { 197 return null; 198 } 199 200 return ObjectG.getDObject!(PgContext)(cast(PangoContext*) p); 201 } 202 203 /** 204 * Forces recomputation of any state in the PangoLayout that 205 * might depend on the layout's context. This function should 206 * be called if you make changes to the context subsequent 207 * to creating the layout. 208 */ 209 public void contextChanged() 210 { 211 // void pango_layout_context_changed (PangoLayout *layout); 212 pango_layout_context_changed(pangoLayout); 213 } 214 215 /** 216 * Returns the current serial number of layout. The serial number is 217 * initialized to an small number larger than zero when a new layout 218 * is created and is increased whenever the layout is changed using any 219 * of the setter functions, or the PangoContext it uses has changed. 220 * The serial may wrap, but will never have the value 0. Since it 221 * can wrap, never compare it with "less than", always use "not equals". 222 * This can be used to automatically detect changes to a PangoLayout, and 223 * is useful for example to decide whether a layout needs redrawing. 224 * To force the serial to be increased, use pango_layout_context_changed(). 225 * Since 1.32.4 226 * Returns: The current serial number of layout. 227 */ 228 public uint getSerial() 229 { 230 // guint pango_layout_get_serial (PangoLayout *layout); 231 return pango_layout_get_serial(pangoLayout); 232 } 233 234 /** 235 * Gets the text in the layout. The returned text should not 236 * be freed or modified. 237 * Returns: the text in the layout. 238 */ 239 public string getText() 240 { 241 // const char * pango_layout_get_text (PangoLayout *layout); 242 return Str.toString(pango_layout_get_text(pangoLayout)); 243 } 244 245 /** 246 * Returns the number of Unicode characters in the 247 * the text of layout. 248 * Since 1.30 249 * Returns: the number of Unicode characters in the text of layout 250 */ 251 public int getCharacterCount() 252 { 253 // gint pango_layout_get_character_count (PangoLayout *layout); 254 return pango_layout_get_character_count(pangoLayout); 255 } 256 257 /** 258 * Same as pango_layout_set_markup_with_accel(), but 259 * the markup text isn't scanned for accelerators. 260 * Params: 261 * markup = marked-up text 262 * length = length of marked-up text in bytes, or -1 if markup is 263 * null-terminated 264 */ 265 public void setMarkup(string markup, int length) 266 { 267 // void pango_layout_set_markup (PangoLayout *layout, const char *markup, int length); 268 pango_layout_set_markup(pangoLayout, Str.toStringz(markup), length); 269 } 270 271 /** 272 * Sets the layout text and attribute list from marked-up text (see 273 * markup format). Replaces 274 * the current text and attribute list. 275 * If accel_marker is nonzero, the given character will mark the 276 * character following it as an accelerator. For example, accel_marker 277 * might be an ampersand or underscore. All characters marked 278 * as an accelerator will receive a PANGO_UNDERLINE_LOW attribute, 279 * and the first character so marked will be returned in accel_char. 280 * Two accel_marker characters following each other produce a single 281 * literal accel_marker character. 282 * Params: 283 * markup = marked-up text 284 * (see markup format) 285 * length = length of marked-up text in bytes, or -1 if markup is 286 * null-terminated 287 * accelMarker = marker for accelerators in the text 288 * accelChar = return location 289 * for first located accelerator, or NULL. [out caller-allocates][allow-none] 290 */ 291 public void setMarkupWithAccel(string markup, int length, gunichar accelMarker, gunichar* accelChar) 292 { 293 // void pango_layout_set_markup_with_accel (PangoLayout *layout, const char *markup, int length, gunichar accel_marker, gunichar *accel_char); 294 pango_layout_set_markup_with_accel(pangoLayout, Str.toStringz(markup), length, accelMarker, accelChar); 295 } 296 297 /** 298 * Sets the text attributes for a layout object. 299 * References attrs, so the caller can unref its reference. 300 * Params: 301 * attrs = a PangoAttrList, can be NULL. [allow-none][transfer none] 302 */ 303 public void setAttributes(PgAttributeList attrs) 304 { 305 // void pango_layout_set_attributes (PangoLayout *layout, PangoAttrList *attrs); 306 pango_layout_set_attributes(pangoLayout, (attrs is null) ? null : attrs.getPgAttributeListStruct()); 307 } 308 309 /** 310 * Gets the attribute list for the layout, if any. 311 * Returns: a PangoAttrList. [transfer none] 312 */ 313 public PgAttributeList getAttributes() 314 { 315 // PangoAttrList * pango_layout_get_attributes (PangoLayout *layout); 316 auto p = pango_layout_get_attributes(pangoLayout); 317 318 if(p is null) 319 { 320 return null; 321 } 322 323 return ObjectG.getDObject!(PgAttributeList)(cast(PangoAttrList*) p); 324 } 325 326 /** 327 * Sets the default font description for the layout. If no font 328 * description is set on the layout, the font description from 329 * the layout's context is used. 330 * Params: 331 * desc = the new PangoFontDescription, or NULL to unset the 332 * current font description. [allow-none] 333 */ 334 public void setFontDescription(PgFontDescription desc) 335 { 336 // void pango_layout_set_font_description (PangoLayout *layout, const PangoFontDescription *desc); 337 pango_layout_set_font_description(pangoLayout, (desc is null) ? null : desc.getPgFontDescriptionStruct()); 338 } 339 340 /** 341 * Gets the font description for the layout, if any. 342 * Since 1.8 343 * Returns: a pointer to the layout's font description, or NULL if the font description from the layout's context is inherited. This value is owned by the layout and must not be modified or freed. 344 */ 345 public PgFontDescription getFontDescription() 346 { 347 // const PangoFontDescription * pango_layout_get_font_description (PangoLayout *layout); 348 auto p = pango_layout_get_font_description(pangoLayout); 349 350 if(p is null) 351 { 352 return null; 353 } 354 355 return ObjectG.getDObject!(PgFontDescription)(cast(PangoFontDescription*) p); 356 } 357 358 /** 359 * Sets the width to which the lines of the PangoLayout should wrap or 360 * ellipsized. The default value is -1: no width set. 361 * Params: 362 * width = the desired width in Pango units, or -1 to indicate that no 363 * wrapping or ellipsization should be performed. 364 */ 365 public void setWidth(int width) 366 { 367 // void pango_layout_set_width (PangoLayout *layout, int width); 368 pango_layout_set_width(pangoLayout, width); 369 } 370 371 /** 372 * Gets the width to which the lines of the PangoLayout should wrap. 373 * Returns: the width in Pango units, or -1 if no width set. 374 */ 375 public int getWidth() 376 { 377 // int pango_layout_get_width (PangoLayout *layout); 378 return pango_layout_get_width(pangoLayout); 379 } 380 381 /** 382 * Sets the height to which the PangoLayout should be ellipsized at. There 383 * are two different behaviors, based on whether height is positive or 384 * negative. 385 * If height is positive, it will be the maximum height of the layout. Only 386 * lines would be shown that would fit, and if there is any text omitted, 387 * an ellipsis added. At least one line is included in each paragraph regardless 388 * of how small the height value is. A value of zero will render exactly one 389 * line for the entire layout. 390 * If height is negative, it will be the (negative of) maximum number of lines per 391 * paragraph. That is, the total number of lines shown may well be more than 392 * this value if the layout contains multiple paragraphs of text. 393 * The default value of -1 means that first line of each paragraph is ellipsized. 394 * This behvaior may be changed in the future to act per layout instead of per 395 * paragraph. File a bug against pango at http://bugzilla.gnome.org/ if your 396 * code relies on this behavior. 397 * Height setting only has effect if a positive width is set on 398 * layout and ellipsization mode of layout is not PANGO_ELLIPSIZE_NONE. 399 * The behavior is undefined if a height other than -1 is set and 400 * ellipsization mode is set to PANGO_ELLIPSIZE_NONE, and may change in the 401 * future. 402 * Since 1.20 403 * Params: 404 * height = the desired height of the layout in Pango units if positive, 405 * or desired number of lines if negative. 406 */ 407 public void setHeight(int height) 408 { 409 // void pango_layout_set_height (PangoLayout *layout, int height); 410 pango_layout_set_height(pangoLayout, height); 411 } 412 413 /** 414 * Gets the height of layout used for ellipsization. See 415 * pango_layout_set_height() for details. 416 * Since 1.20 417 * Returns: the height, in Pango units if positive, or number of lines if negative. 418 */ 419 public int getHeight() 420 { 421 // int pango_layout_get_height (PangoLayout *layout); 422 return pango_layout_get_height(pangoLayout); 423 } 424 425 /** 426 * Sets the wrap mode; the wrap mode only has effect if a width 427 * is set on the layout with pango_layout_set_width(). 428 * To turn off wrapping, set the width to -1. 429 * Params: 430 * wrap = the wrap mode 431 */ 432 public void setWrap(PangoWrapMode wrap) 433 { 434 // void pango_layout_set_wrap (PangoLayout *layout, PangoWrapMode wrap); 435 pango_layout_set_wrap(pangoLayout, wrap); 436 } 437 438 /** 439 * Gets the wrap mode for the layout. 440 * Use pango_layout_is_wrapped() to query whether any paragraphs 441 * were actually wrapped. 442 * Returns: active wrap mode. 443 */ 444 public PangoWrapMode getWrap() 445 { 446 // PangoWrapMode pango_layout_get_wrap (PangoLayout *layout); 447 return pango_layout_get_wrap(pangoLayout); 448 } 449 450 /** 451 * Queries whether the layout had to wrap any paragraphs. 452 * This returns TRUE if a positive width is set on layout, 453 * ellipsization mode of layout is set to PANGO_ELLIPSIZE_NONE, 454 * and there are paragraphs exceeding the layout width that have 455 * to be wrapped. 456 * Since 1.16 457 * Returns: TRUE if any paragraphs had to be wrapped, FALSE otherwise. 458 */ 459 public int isWrapped() 460 { 461 // gboolean pango_layout_is_wrapped (PangoLayout *layout); 462 return pango_layout_is_wrapped(pangoLayout); 463 } 464 465 /** 466 * Sets the type of ellipsization being performed for layout. 467 * Depending on the ellipsization mode ellipsize text is 468 * removed from the start, middle, or end of text so they 469 * fit within the width and height of layout set with 470 * pango_layout_set_width() and pango_layout_set_height(). 471 * If the layout contains characters such as newlines that 472 * force it to be layed out in multiple paragraphs, then whether 473 * each paragraph is ellipsized separately or the entire layout 474 * is ellipsized as a whole depends on the set height of the layout. 475 * See pango_layout_set_height() for details. 476 * Since 1.6 477 * Params: 478 * ellipsize = the new ellipsization mode for layout 479 */ 480 public void setEllipsize(PangoEllipsizeMode ellipsize) 481 { 482 // void pango_layout_set_ellipsize (PangoLayout *layout, PangoEllipsizeMode ellipsize); 483 pango_layout_set_ellipsize(pangoLayout, ellipsize); 484 } 485 486 /** 487 * Gets the type of ellipsization being performed for layout. 488 * See pango_layout_set_ellipsize() 489 * Since 1.6 490 * Returns: the current ellipsization mode for layout. Use pango_layout_is_ellipsized() to query whether any paragraphs were actually ellipsized. 491 */ 492 public PangoEllipsizeMode getEllipsize() 493 { 494 // PangoEllipsizeMode pango_layout_get_ellipsize (PangoLayout *layout); 495 return pango_layout_get_ellipsize(pangoLayout); 496 } 497 498 /** 499 * Queries whether the layout had to ellipsize any paragraphs. 500 * This returns TRUE if the ellipsization mode for layout 501 * is not PANGO_ELLIPSIZE_NONE, a positive width is set on layout, 502 * and there are paragraphs exceeding that width that have to be 503 * ellipsized. 504 * Since 1.16 505 * Returns: TRUE if any paragraphs had to be ellipsized, FALSE otherwise. 506 */ 507 public int isEllipsized() 508 { 509 // gboolean pango_layout_is_ellipsized (PangoLayout *layout); 510 return pango_layout_is_ellipsized(pangoLayout); 511 } 512 513 /** 514 * Sets the width in Pango units to indent each paragraph. A negative value 515 * of indent will produce a hanging indentation. That is, the first line will 516 * have the full width, and subsequent lines will be indented by the 517 * absolute value of indent. 518 * The indent setting is ignored if layout alignment is set to 519 * PANGO_ALIGN_CENTER. 520 * Params: 521 * indent = the amount by which to indent. 522 */ 523 public void setIndent(int indent) 524 { 525 // void pango_layout_set_indent (PangoLayout *layout, int indent); 526 pango_layout_set_indent(pangoLayout, indent); 527 } 528 529 /** 530 * Gets the paragraph indent width in Pango units. A negative value 531 * indicates a hanging indentation. 532 * Returns: the indent in Pango units. 533 */ 534 public int getIndent() 535 { 536 // int pango_layout_get_indent (PangoLayout *layout); 537 return pango_layout_get_indent(pangoLayout); 538 } 539 540 /** 541 * Gets the amount of spacing between the lines of the layout. 542 * Returns: the spacing in Pango units. 543 */ 544 public int getSpacing() 545 { 546 // int pango_layout_get_spacing (PangoLayout *layout); 547 return pango_layout_get_spacing(pangoLayout); 548 } 549 550 /** 551 * Sets the amount of spacing in Pango unit between the lines of the 552 * layout. 553 * Params: 554 * spacing = the amount of spacing 555 */ 556 public void setSpacing(int spacing) 557 { 558 // void pango_layout_set_spacing (PangoLayout *layout, int spacing); 559 pango_layout_set_spacing(pangoLayout, spacing); 560 } 561 562 /** 563 * Sets whether each complete line should be stretched to 564 * fill the entire width of the layout. This stretching is typically 565 * done by adding whitespace, but for some scripts (such as Arabic), 566 * the justification may be done in more complex ways, like extending 567 * the characters. 568 * Note that this setting is not implemented and so is ignored in Pango 569 * older than 1.18. 570 * Params: 571 * justify = whether the lines in the layout should be justified. 572 */ 573 public void setJustify(int justify) 574 { 575 // void pango_layout_set_justify (PangoLayout *layout, gboolean justify); 576 pango_layout_set_justify(pangoLayout, justify); 577 } 578 579 /** 580 * Gets whether each complete line should be stretched to fill the entire 581 * width of the layout. 582 * Returns: the justify. 583 */ 584 public int getJustify() 585 { 586 // gboolean pango_layout_get_justify (PangoLayout *layout); 587 return pango_layout_get_justify(pangoLayout); 588 } 589 590 /** 591 * Sets whether to calculate the bidirectional base direction 592 * for the layout according to the contents of the layout; 593 * when this flag is on (the default), then paragraphs in 594 * layout that begin with strong right-to-left characters 595 * (Arabic and Hebrew principally), will have right-to-left 596 * layout, paragraphs with letters from other scripts will 597 * have left-to-right layout. Paragraphs with only neutral 598 * characters get their direction from the surrounding paragraphs. 599 * When FALSE, the choice between left-to-right and 600 * right-to-left layout is done according to the base direction 601 * of the layout's PangoContext. (See pango_context_set_base_dir()). 602 * When the auto-computed direction of a paragraph differs from the 603 * base direction of the context, the interpretation of 604 * PANGO_ALIGN_LEFT and PANGO_ALIGN_RIGHT are swapped. 605 * Since 1.4 606 * Params: 607 * autoDir = if TRUE, compute the bidirectional base direction 608 * from the layout's contents. 609 */ 610 public void setAutoDir(int autoDir) 611 { 612 // void pango_layout_set_auto_dir (PangoLayout *layout, gboolean auto_dir); 613 pango_layout_set_auto_dir(pangoLayout, autoDir); 614 } 615 616 /** 617 * Gets whether to calculate the bidirectional base direction 618 * for the layout according to the contents of the layout. 619 * See pango_layout_set_auto_dir(). 620 * Since 1.4 621 * Returns: TRUE if the bidirectional base direction is computed from the layout's contents, FALSE otherwise. 622 */ 623 public int getAutoDir() 624 { 625 // gboolean pango_layout_get_auto_dir (PangoLayout *layout); 626 return pango_layout_get_auto_dir(pangoLayout); 627 } 628 629 /** 630 * Sets the alignment for the layout: how partial lines are 631 * positioned within the horizontal space available. 632 * Params: 633 * alignment = the alignment 634 */ 635 public void setAlignment(PangoAlignment alignment) 636 { 637 // void pango_layout_set_alignment (PangoLayout *layout, PangoAlignment alignment); 638 pango_layout_set_alignment(pangoLayout, alignment); 639 } 640 641 /** 642 * Gets the alignment for the layout: how partial lines are 643 * positioned within the horizontal space available. 644 * Returns: the alignment. 645 */ 646 public PangoAlignment getAlignment() 647 { 648 // PangoAlignment pango_layout_get_alignment (PangoLayout *layout); 649 return pango_layout_get_alignment(pangoLayout); 650 } 651 652 /** 653 * Sets the tabs to use for layout, overriding the default tabs 654 * (by default, tabs are every 8 spaces). If tabs is NULL, the default 655 * tabs are reinstated. tabs is copied into the layout; you must 656 * free your copy of tabs yourself. 657 * Params: 658 * tabs = a PangoTabArray, or NULL. [allow-none] 659 */ 660 public void setTabs(PgTabArray tabs) 661 { 662 // void pango_layout_set_tabs (PangoLayout *layout, PangoTabArray *tabs); 663 pango_layout_set_tabs(pangoLayout, (tabs is null) ? null : tabs.getPgTabArrayStruct()); 664 } 665 666 /** 667 * Gets the current PangoTabArray used by this layout. If no 668 * PangoTabArray has been set, then the default tabs are in use 669 * and NULL is returned. Default tabs are every 8 spaces. 670 * The return value should be freed with pango_tab_array_free(). 671 * Returns: a copy of the tabs for this layout, or NULL. 672 */ 673 public PgTabArray getTabs() 674 { 675 // PangoTabArray * pango_layout_get_tabs (PangoLayout *layout); 676 auto p = pango_layout_get_tabs(pangoLayout); 677 678 if(p is null) 679 { 680 return null; 681 } 682 683 return ObjectG.getDObject!(PgTabArray)(cast(PangoTabArray*) p); 684 } 685 686 /** 687 * If setting is TRUE, do not treat newlines and similar characters 688 * as paragraph separators; instead, keep all text in a single paragraph, 689 * and display a glyph for paragraph separator characters. Used when 690 * you want to allow editing of newlines on a single text line. 691 * Params: 692 * setting = new setting 693 */ 694 public void setSingleParagraphMode(int setting) 695 { 696 // void pango_layout_set_single_paragraph_mode (PangoLayout *layout, gboolean setting); 697 pango_layout_set_single_paragraph_mode(pangoLayout, setting); 698 } 699 700 /** 701 * Obtains the value set by pango_layout_set_single_paragraph_mode(). 702 * Returns: TRUE if the layout does not break paragraphs at paragraph separator characters, FALSE otherwise. 703 */ 704 public int getSingleParagraphMode() 705 { 706 // gboolean pango_layout_get_single_paragraph_mode (PangoLayout *layout); 707 return pango_layout_get_single_paragraph_mode(pangoLayout); 708 } 709 710 /** 711 * Counts the number unknown glyphs in layout. That is, zero if 712 * glyphs for all characters in the layout text were found, or more 713 * than zero otherwise. 714 * This function can be used to determine if there are any fonts 715 * available to render all characters in a certain string, or when 716 * used in combination with PANGO_ATTR_FALLBACK, to check if a 717 * certain font supports all the characters in the string. 718 * Since 1.16 719 * Returns: The number of unknown glyphs in layout. 720 */ 721 public int getUnknownGlyphsCount() 722 { 723 // int pango_layout_get_unknown_glyphs_count (PangoLayout *layout); 724 return pango_layout_get_unknown_glyphs_count(pangoLayout); 725 } 726 727 /** 728 * Retrieves an array of logical attributes for each character in 729 * the layout. 730 * Params: 731 * attrs = location to store a pointer to an array of logical attributes 732 * This value must be freed with g_free(). [out][array length=n_attrs][transfer container] 733 */ 734 public void getLogAttrs(out PangoLogAttr[] attrs) 735 { 736 // void pango_layout_get_log_attrs (PangoLayout *layout, PangoLogAttr **attrs, gint *n_attrs); 737 PangoLogAttr* outattrs = null; 738 int nAttrs; 739 740 pango_layout_get_log_attrs(pangoLayout, &outattrs, &nAttrs); 741 742 attrs = outattrs[0 .. nAttrs]; 743 } 744 745 /** 746 * Retrieves an array of logical attributes for each character in 747 * the layout. 748 * This is a faster alternative to pango_layout_get_log_attrs(). 749 * The returned array is part of layout and must not be modified. 750 * Modifying the layout will invalidate the returned array. 751 * The number of attributes returned in n_attrs will be one more 752 * than the total number of characters in the layout, since there 753 * need to be attributes corresponding to both the position before 754 * the first character and the position after the last character. 755 * Since 1.30 756 * Returns: an array of logical attributes. [array length=n_attrs] 757 */ 758 public PangoLogAttr[] getLogAttrsReadonly() 759 { 760 // const PangoLogAttr * pango_layout_get_log_attrs_readonly (PangoLayout *layout, gint *n_attrs); 761 int nAttrs; 762 auto p = pango_layout_get_log_attrs_readonly(pangoLayout, &nAttrs); 763 764 if(p is null) 765 { 766 return null; 767 } 768 769 return p[0 .. nAttrs]; 770 } 771 772 /** 773 * Converts from an index within a PangoLayout to the onscreen position 774 * corresponding to the grapheme at that index, which is represented 775 * as rectangle. Note that pos->x is always the leading 776 * edge of the grapheme and pos->x + pos->width the trailing 777 * edge of the grapheme. If the directionality of the grapheme is right-to-left, 778 * then pos->width will be negative. 779 * Params: 780 * index = byte index within layout 781 * pos = rectangle in which to store the position of the grapheme. [out] 782 */ 783 public void indexToPos(int index, PangoRectangle* pos) 784 { 785 // void pango_layout_index_to_pos (PangoLayout *layout, int index_, PangoRectangle *pos); 786 pango_layout_index_to_pos(pangoLayout, index, pos); 787 } 788 789 /** 790 * Converts from byte index_ within the layout to line and X position. 791 * (X position is measured from the left edge of the line) 792 * Params: 793 * index = the byte index of a grapheme within the layout. 794 * trailing = an integer indicating the edge of the grapheme to retrieve the 795 * position of. If 0, the trailing edge of the grapheme, if > 0, 796 * the leading of the grapheme. 797 * line = location to store resulting line index. (which will 798 * between 0 and pango_layout_get_line_count(layout) - 1), or NULL. [out][allow-none] 799 * xPos = location to store resulting position within line 800 * (PANGO_SCALE units per device unit), or NULL. [out][allow-none] 801 */ 802 public void indexToLineX(int index, int trailing, out int line, out int xPos) 803 { 804 // void pango_layout_index_to_line_x (PangoLayout *layout, int index_, gboolean trailing, int *line, int *x_pos); 805 pango_layout_index_to_line_x(pangoLayout, index, trailing, &line, &xPos); 806 } 807 808 /** 809 * Converts from X and Y position within a layout to the byte 810 * index to the character at that logical position. If the 811 * Y position is not inside the layout, the closest position is chosen 812 * (the position will be clamped inside the layout). If the 813 * X position is not within the layout, then the start or the 814 * end of the line is chosen as described for pango_layout_x_to_index(). 815 * If either the X or Y positions were not inside the layout, then the 816 * function returns FALSE; on an exact hit, it returns TRUE. 817 * Params: 818 * x = the X offset (in Pango units) 819 * from the left edge of the layout. 820 * y = the Y offset (in Pango units) 821 * from the top edge of the layout 822 * index = location to store calculated byte index. [out] 823 * trailing = location to store a integer indicating where 824 * in the grapheme the user clicked. It will either 825 * be zero, or the number of characters in the 826 * grapheme. 0 represents the trailing edge of the grapheme. [out] 827 * Returns: TRUE if the coordinates were inside text, FALSE otherwise. 828 */ 829 public int xyToIndex(int x, int y, out int index, out int trailing) 830 { 831 // gboolean pango_layout_xy_to_index (PangoLayout *layout, int x, int y, int *index_, int *trailing); 832 return pango_layout_xy_to_index(pangoLayout, x, y, &index, &trailing); 833 } 834 835 /** 836 * Given an index within a layout, determines the positions that of the 837 * strong and weak cursors if the insertion point is at that 838 * index. The position of each cursor is stored as a zero-width 839 * rectangle. The strong cursor location is the location where 840 * characters of the directionality equal to the base direction of the 841 * layout are inserted. The weak cursor location is the location 842 * where characters of the directionality opposite to the base 843 * direction of the layout are inserted. 844 * Params: 845 * index = the byte index of the cursor 846 * strongPos = location to store the strong cursor position 847 * (may be NULL). [out][allow-none] 848 * weakPos = location to store the weak cursor position (may be NULL). [out][allow-none] 849 */ 850 public void getCursorPos(int index, PangoRectangle* strongPos, PangoRectangle* weakPos) 851 { 852 // void pango_layout_get_cursor_pos (PangoLayout *layout, int index_, PangoRectangle *strong_pos, PangoRectangle *weak_pos); 853 pango_layout_get_cursor_pos(pangoLayout, index, strongPos, weakPos); 854 } 855 856 /** 857 * Computes a new cursor position from an old position and 858 * a count of positions to move visually. If direction is positive, 859 * then the new strong cursor position will be one position 860 * to the right of the old cursor position. If direction is negative, 861 * then the new strong cursor position will be one position 862 * to the left of the old cursor position. 863 * In the presence of bidirectional text, the correspondence 864 * between logical and visual order will depend on the direction 865 * of the current run, and there may be jumps when the cursor 866 * is moved off of the end of a run. 867 * Motion here is in cursor positions, not in characters, so a 868 * single call to pango_layout_move_cursor_visually() may move the 869 * cursor over multiple characters when multiple characters combine 870 * to form a single grapheme. 871 * Params: 872 * strong = whether the moving cursor is the strong cursor or the 873 * weak cursor. The strong cursor is the cursor corresponding 874 * to text insertion in the base direction for the layout. 875 * oldIndex = the byte index of the grapheme for the old index 876 * oldTrailing = if 0, the cursor was at the trailing edge of the 877 * grapheme indicated by old_index, if > 0, the cursor 878 * was at the leading edge. 879 * direction = direction to move cursor. A negative 880 * value indicates motion to the left. 881 * newIndex = location to store the new cursor byte index. A value of -1 882 * indicates that the cursor has been moved off the beginning 883 * of the layout. A value of G_MAXINT indicates that 884 * the cursor has been moved off the end of the layout. [out] 885 * newTrailing = number of characters to move forward from the 886 * location returned for new_index to get the position 887 * where the cursor should be displayed. This allows 888 * distinguishing the position at the beginning of one 889 * line from the position at the end of the preceding 890 * line. new_index is always on the line where the 891 * cursor should be displayed. [out] 892 */ 893 public void moveCursorVisually(int strong, int oldIndex, int oldTrailing, int direction, out int newIndex, out int newTrailing) 894 { 895 // void pango_layout_move_cursor_visually (PangoLayout *layout, gboolean strong, int old_index, int old_trailing, int direction, int *new_index, int *new_trailing); 896 pango_layout_move_cursor_visually(pangoLayout, strong, oldIndex, oldTrailing, direction, &newIndex, &newTrailing); 897 } 898 899 /** 900 * Computes the logical and ink extents of layout. Logical extents 901 * are usually what you want for positioning things. Note that both extents 902 * may have non-zero x and y. You may want to use those to offset where you 903 * render the layout. Not doing that is a very typical bug that shows up as 904 * right-to-left layouts not being correctly positioned in a layout with 905 * a set width. 906 * The extents are given in layout coordinates and in Pango units; layout 907 * coordinates begin at the top left corner of the layout. 908 * Params: 909 * inkRect = rectangle used to store the extents of the 910 * layout as drawn or NULL to indicate that the result is 911 * not needed. [out][allow-none] 912 * logicalRect = rectangle used to store the logical 913 * extents of the layout or NULL to indicate that the 914 * result is not needed. [out][allow-none] 915 */ 916 public void getExtents(PangoRectangle* inkRect, PangoRectangle* logicalRect) 917 { 918 // void pango_layout_get_extents (PangoLayout *layout, PangoRectangle *ink_rect, PangoRectangle *logical_rect); 919 pango_layout_get_extents(pangoLayout, inkRect, logicalRect); 920 } 921 922 /** 923 * Computes the logical and ink extents of layout in device units. 924 * This function just calls pango_layout_get_extents() followed by 925 * two pango_extents_to_pixels() calls, rounding ink_rect and logical_rect 926 * such that the rounded rectangles fully contain the unrounded one (that is, 927 * passes them as first argument to pango_extents_to_pixels()). 928 * Params: 929 * inkRect = rectangle used to store the extents of the 930 * layout as drawn or NULL to indicate that the result is 931 * not needed. [out][allow-none] 932 * logicalRect = rectangle used to store the logical 933 * extents of the layout or NULL to indicate that the 934 * result is not needed. [out][allow-none] 935 */ 936 public void getPixelExtents(PangoRectangle* inkRect, PangoRectangle* logicalRect) 937 { 938 // void pango_layout_get_pixel_extents (PangoLayout *layout, PangoRectangle *ink_rect, PangoRectangle *logical_rect); 939 pango_layout_get_pixel_extents(pangoLayout, inkRect, logicalRect); 940 } 941 942 /** 943 * Determines the logical width and height of a PangoLayout 944 * in Pango units (device units scaled by PANGO_SCALE). This 945 * is simply a convenience function around pango_layout_get_extents(). 946 * Params: 947 * width = location to store the logical width, or NULL. [out caller-allocates][allow-none] 948 * height = location to store the logical height, or NULL. [out caller-allocates][allow-none] 949 */ 950 public void getSize(out int width, out int height) 951 { 952 // void pango_layout_get_size (PangoLayout *layout, int *width, int *height); 953 pango_layout_get_size(pangoLayout, &width, &height); 954 } 955 956 /** 957 * Determines the logical width and height of a PangoLayout 958 * in device units. (pango_layout_get_size() returns the width 959 * and height scaled by PANGO_SCALE.) This 960 * is simply a convenience function around 961 * pango_layout_get_pixel_extents(). 962 * Params: 963 * width = location to store the logical width, or NULL. [out][allow-none] 964 * height = location to store the logical height, or NULL. [out][allow-none] 965 */ 966 public void getPixelSize(out int width, out int height) 967 { 968 // void pango_layout_get_pixel_size (PangoLayout *layout, int *width, int *height); 969 pango_layout_get_pixel_size(pangoLayout, &width, &height); 970 } 971 972 /** 973 * Gets the Y position of baseline of the first line in layout. 974 * Since 1.22 975 * Returns: baseline of first line, from top of layout. 976 */ 977 public int getBaseline() 978 { 979 // int pango_layout_get_baseline (PangoLayout *layout); 980 return pango_layout_get_baseline(pangoLayout); 981 } 982 983 /** 984 * Retrieves the count of lines for the layout. 985 * Returns: the line count. 986 */ 987 public int getLineCount() 988 { 989 // int pango_layout_get_line_count (PangoLayout *layout); 990 return pango_layout_get_line_count(pangoLayout); 991 } 992 993 /** 994 * Retrieves a particular line from a PangoLayout. 995 * Use the faster pango_layout_get_line_readonly() if you do not plan 996 * to modify the contents of the line (glyphs, glyph widths, etc.). 997 * Params: 998 * line = the index of a line, which must be between 0 and 999 * pango_layout_get_line_count(layout) - 1, inclusive. 1000 * Returns: the requested PangoLayoutLine, or NULL if the index is out of range. This layout line can be ref'ed and retained, but will become invalid if changes are made to the PangoLayout. [transfer none] 1001 */ 1002 public PgLayoutLine getLine(int line) 1003 { 1004 // PangoLayoutLine * pango_layout_get_line (PangoLayout *layout, int line); 1005 auto p = pango_layout_get_line(pangoLayout, line); 1006 1007 if(p is null) 1008 { 1009 return null; 1010 } 1011 1012 return ObjectG.getDObject!(PgLayoutLine)(cast(PangoLayoutLine*) p); 1013 } 1014 1015 /** 1016 * Retrieves a particular line from a PangoLayout. 1017 * This is a faster alternative to pango_layout_get_line(), 1018 * but the user is not expected 1019 * to modify the contents of the line (glyphs, glyph widths, etc.). 1020 * Since 1.16 1021 * Params: 1022 * line = the index of a line, which must be between 0 and 1023 * pango_layout_get_line_count(layout) - 1, inclusive. 1024 * Returns: the requested PangoLayoutLine, or NULL if the index is out of range. This layout line can be ref'ed and retained, but will become invalid if changes are made to the PangoLayout. No changes should be made to the line. [transfer none] 1025 */ 1026 public PgLayoutLine getLineReadonly(int line) 1027 { 1028 // PangoLayoutLine * pango_layout_get_line_readonly (PangoLayout *layout, int line); 1029 auto p = pango_layout_get_line_readonly(pangoLayout, line); 1030 1031 if(p is null) 1032 { 1033 return null; 1034 } 1035 1036 return ObjectG.getDObject!(PgLayoutLine)(cast(PangoLayoutLine*) p); 1037 } 1038 1039 /** 1040 * Returns the lines of the layout as a list. 1041 * Use the faster pango_layout_get_lines_readonly() if you do not plan 1042 * to modify the contents of the lines (glyphs, glyph widths, etc.). 1043 * Returns: a GSList containing the lines in the layout. This points to internal data of the PangoLayout and must be used with care. It will become invalid on any change to the layout's text or properties. [element-type Pango.LayoutLine][transfer none] 1044 */ 1045 public ListSG getLines() 1046 { 1047 // GSList * pango_layout_get_lines (PangoLayout *layout); 1048 auto p = pango_layout_get_lines(pangoLayout); 1049 1050 if(p is null) 1051 { 1052 return null; 1053 } 1054 1055 return ObjectG.getDObject!(ListSG)(cast(GSList*) p); 1056 } 1057 1058 /** 1059 * Returns the lines of the layout as a list. 1060 * This is a faster alternative to pango_layout_get_lines(), 1061 * but the user is not expected 1062 * to modify the contents of the lines (glyphs, glyph widths, etc.). 1063 * Since 1.16 1064 * Returns: a GSList containing the lines in the layout. This points to internal data of the PangoLayout and must be used with care. It will become invalid on any change to the layout's text or properties. No changes should be made to the lines. [element-type Pango.LayoutLine][transfer none] 1065 */ 1066 public ListSG getLinesReadonly() 1067 { 1068 // GSList * pango_layout_get_lines_readonly (PangoLayout *layout); 1069 auto p = pango_layout_get_lines_readonly(pangoLayout); 1070 1071 if(p is null) 1072 { 1073 return null; 1074 } 1075 1076 return ObjectG.getDObject!(ListSG)(cast(GSList*) p); 1077 } 1078 1079 /** 1080 * Returns an iterator to iterate over the visual extents of the layout. 1081 * Returns: the new PangoLayoutIter that should be freed using pango_layout_iter_free(). 1082 */ 1083 public PgLayoutIter getIter() 1084 { 1085 // PangoLayoutIter * pango_layout_get_iter (PangoLayout *layout); 1086 auto p = pango_layout_get_iter(pangoLayout); 1087 1088 if(p is null) 1089 { 1090 return null; 1091 } 1092 1093 return ObjectG.getDObject!(PgLayoutIter)(cast(PangoLayoutIter*) p); 1094 } 1095 }