2 * Copyright (c) 2022 Samsung Electronics Co., Ltd.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
19 #include <dali-toolkit/internal/controls/text-controls/text-label-impl.h>
22 #include <dali/devel-api/actors/actor-devel.h>
23 #include <dali/devel-api/adaptor-framework/image-loading.h>
24 #include <dali/devel-api/common/stage.h>
25 #include <dali/devel-api/object/property-helper-devel.h>
26 #include <dali/integration-api/debug.h>
27 #include <dali/public-api/common/dali-common.h>
28 #include <dali/public-api/object/type-registry-helper.h>
31 #include <dali-toolkit/devel-api/controls/control-depth-index-ranges.h>
32 #include <dali-toolkit/devel-api/text/rendering-backend.h>
33 #include <dali-toolkit/internal/controls/text-controls/common-text-utils.h>
34 #include <dali-toolkit/internal/styling/style-manager-impl.h>
35 #include <dali-toolkit/internal/text/property-string-parser.h>
36 #include <dali-toolkit/internal/text/rendering/text-backend.h>
37 #include <dali-toolkit/internal/text/text-definitions.h>
38 #include <dali-toolkit/internal/text/text-effects-style.h>
39 #include <dali-toolkit/internal/text/text-font-style.h>
40 #include <dali-toolkit/internal/text/text-view.h>
41 #include <dali-toolkit/public-api/text/text-enumerations.h>
43 #include <dali-toolkit/devel-api/controls/control-devel.h>
44 #include <dali-toolkit/devel-api/visual-factory/visual-base.h>
45 #include <dali-toolkit/devel-api/visual-factory/visual-factory.h>
46 #include <dali-toolkit/internal/text/text-enumerations-impl.h>
47 #include <dali-toolkit/public-api/align-enumerations.h>
48 #include <dali-toolkit/public-api/visuals/text-visual-properties.h>
49 #include <dali-toolkit/public-api/visuals/visual-properties.h>
52 #include <dali-toolkit/devel-api/controls/text-controls/text-label-devel.h>
54 using namespace Dali::Toolkit::Text;
64 const unsigned int DEFAULT_RENDERING_BACKEND = Dali::Toolkit::DevelText::DEFAULT_RENDERING_BACKEND;
67 * @brief How the text visual should be aligned vertically inside the control.
69 * 0.0f aligns the text to the top, 0.5f aligns the text to the center, 1.0f aligns the text to the bottom.
70 * The alignment depends on the alignment value of the text label (Use Text::VerticalAlignment enumerations).
72 const float VERTICAL_ALIGNMENT_TABLE[Text::VerticalAlignment::BOTTOM + 1] =
74 0.0f, // VerticalAlignment::TOP
75 0.5f, // VerticalAlignment::CENTER
76 1.0f // VerticalAlignment::BOTTOM
79 const std::string TEXT_FIT_ENABLE_KEY("enable");
80 const std::string TEXT_FIT_MIN_SIZE_KEY("minSize");
81 const std::string TEXT_FIT_MAX_SIZE_KEY("maxSize");
82 const std::string TEXT_FIT_STEP_SIZE_KEY("stepSize");
83 const std::string TEXT_FIT_FONT_SIZE_KEY("fontSize");
84 const std::string TEXT_FIT_FONT_SIZE_TYPE_KEY("fontSizeType");
86 #if defined(DEBUG_ENABLED)
87 Debug::Filter* gLogFilter = Debug::Filter::New(Debug::NoLogging, true, "LOG_TEXT_CONTROLS");
90 const Scripting::StringEnum AUTO_SCROLL_STOP_MODE_TABLE[] =
92 {"IMMEDIATE", Toolkit::TextLabel::AutoScrollStopMode::IMMEDIATE},
93 {"FINISH_LOOP", Toolkit::TextLabel::AutoScrollStopMode::FINISH_LOOP},
95 const unsigned int AUTO_SCROLL_STOP_MODE_TABLE_COUNT = sizeof(AUTO_SCROLL_STOP_MODE_TABLE) / sizeof(AUTO_SCROLL_STOP_MODE_TABLE[0]);
100 return Toolkit::TextLabel::New();
104 // Setup properties, signals and actions using the type-registry.
105 DALI_TYPE_REGISTRATION_BEGIN(Toolkit::TextLabel, Toolkit::Control, Create);
107 DALI_PROPERTY_REGISTRATION(Toolkit, TextLabel, "text", STRING, TEXT )
108 DALI_PROPERTY_REGISTRATION(Toolkit, TextLabel, "fontFamily", STRING, FONT_FAMILY )
109 DALI_PROPERTY_REGISTRATION(Toolkit, TextLabel, "fontStyle", MAP, FONT_STYLE )
110 DALI_PROPERTY_REGISTRATION(Toolkit, TextLabel, "pointSize", FLOAT, POINT_SIZE )
111 DALI_PROPERTY_REGISTRATION(Toolkit, TextLabel, "multiLine", BOOLEAN, MULTI_LINE )
112 DALI_PROPERTY_REGISTRATION(Toolkit, TextLabel, "horizontalAlignment", STRING, HORIZONTAL_ALIGNMENT )
113 DALI_PROPERTY_REGISTRATION(Toolkit, TextLabel, "verticalAlignment", STRING, VERTICAL_ALIGNMENT )
114 DALI_PROPERTY_REGISTRATION(Toolkit, TextLabel, "enableMarkup", BOOLEAN, ENABLE_MARKUP )
115 DALI_PROPERTY_REGISTRATION(Toolkit, TextLabel, "enableAutoScroll", BOOLEAN, ENABLE_AUTO_SCROLL )
116 DALI_PROPERTY_REGISTRATION(Toolkit, TextLabel, "autoScrollSpeed", INTEGER, AUTO_SCROLL_SPEED )
117 DALI_PROPERTY_REGISTRATION(Toolkit, TextLabel, "autoScrollLoopCount", INTEGER, AUTO_SCROLL_LOOP_COUNT )
118 DALI_PROPERTY_REGISTRATION(Toolkit, TextLabel, "autoScrollGap", FLOAT, AUTO_SCROLL_GAP )
119 DALI_PROPERTY_REGISTRATION(Toolkit, TextLabel, "lineSpacing", FLOAT, LINE_SPACING )
120 DALI_PROPERTY_REGISTRATION(Toolkit, TextLabel, "underline", MAP, UNDERLINE )
121 DALI_PROPERTY_REGISTRATION(Toolkit, TextLabel, "shadow", MAP, SHADOW )
122 DALI_PROPERTY_REGISTRATION(Toolkit, TextLabel, "emboss", MAP, EMBOSS )
123 DALI_PROPERTY_REGISTRATION(Toolkit, TextLabel, "outline", MAP, OUTLINE )
124 DALI_PROPERTY_REGISTRATION(Toolkit, TextLabel, "pixelSize", FLOAT, PIXEL_SIZE )
125 DALI_PROPERTY_REGISTRATION(Toolkit, TextLabel, "ellipsis", BOOLEAN, ELLIPSIS )
126 DALI_PROPERTY_REGISTRATION(Toolkit, TextLabel, "autoScrollLoopDelay", FLOAT, AUTO_SCROLL_LOOP_DELAY )
127 DALI_PROPERTY_REGISTRATION(Toolkit, TextLabel, "autoScrollStopMode", STRING, AUTO_SCROLL_STOP_MODE )
128 DALI_PROPERTY_REGISTRATION_READ_ONLY(Toolkit, TextLabel, "lineCount", INTEGER, LINE_COUNT )
129 DALI_PROPERTY_REGISTRATION(Toolkit, TextLabel, "lineWrapMode", INTEGER, LINE_WRAP_MODE )
130 DALI_DEVEL_PROPERTY_REGISTRATION_READ_ONLY(Toolkit, TextLabel, "textDirection", INTEGER, TEXT_DIRECTION )
131 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit, TextLabel, "verticalLineAlignment", INTEGER, VERTICAL_LINE_ALIGNMENT )
132 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit, TextLabel, "textBackground", MAP, BACKGROUND )
133 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit, TextLabel, "ignoreSpacesAfterText", BOOLEAN, IGNORE_SPACES_AFTER_TEXT )
134 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit, TextLabel, "matchSystemLanguageDirection", BOOLEAN, MATCH_SYSTEM_LANGUAGE_DIRECTION)
135 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit, TextLabel, "textFit", MAP, TEXT_FIT )
136 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit, TextLabel, "minLineSize", FLOAT, MIN_LINE_SIZE )
137 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit, TextLabel, "renderingBackend", INTEGER, RENDERING_BACKEND )
138 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit, TextLabel, "fontSizeScale", FLOAT, FONT_SIZE_SCALE )
139 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit, TextLabel, "enableFontSizeScale", BOOLEAN, ENABLE_FONT_SIZE_SCALE )
140 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit, TextLabel, "ellipsisPosition", INTEGER, ELLIPSIS_POSITION )
141 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit, TextLabel, "strikethrough", MAP, STRIKETHROUGH )
142 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit, TextLabel, "characterSpacing", FLOAT, CHARACTER_SPACING )
144 DALI_ANIMATABLE_PROPERTY_REGISTRATION_WITH_DEFAULT(Toolkit, TextLabel, "textColor", Color::BLACK, TEXT_COLOR )
145 DALI_ANIMATABLE_PROPERTY_COMPONENT_REGISTRATION(Toolkit, TextLabel, "textColorRed", TEXT_COLOR_RED, TEXT_COLOR, 0)
146 DALI_ANIMATABLE_PROPERTY_COMPONENT_REGISTRATION(Toolkit, TextLabel, "textColorGreen", TEXT_COLOR_GREEN, TEXT_COLOR, 1)
147 DALI_ANIMATABLE_PROPERTY_COMPONENT_REGISTRATION(Toolkit, TextLabel, "textColorBlue", TEXT_COLOR_BLUE, TEXT_COLOR, 2)
148 DALI_ANIMATABLE_PROPERTY_COMPONENT_REGISTRATION(Toolkit, TextLabel, "textColorAlpha", TEXT_COLOR_ALPHA, TEXT_COLOR, 3)
150 DALI_SIGNAL_REGISTRATION(Toolkit, TextLabel, "anchorClicked", SIGNAL_ANCHOR_CLICKED)
151 DALI_SIGNAL_REGISTRATION(Toolkit, TextLabel, "textFitChanged", SIGNAL_TEXT_FIT_CHANGED)
153 DALI_TYPE_REGISTRATION_END()
156 /// Parses the property map for the TEXT_FIT property
157 void ParseTextFitProperty(Text::ControllerPtr& controller, const Property::Map* propertiesMap)
159 if(propertiesMap && !propertiesMap->Empty())
161 bool enabled = false;
164 float stepSize = 0.f;
165 bool isMinSizeSet = false, isMaxSizeSet = false, isStepSizeSet = false;
166 Controller::FontSizeType type = Controller::FontSizeType::POINT_SIZE;
168 const unsigned int numberOfItems = propertiesMap->Count();
170 // Parses and applies
171 for(unsigned int index = 0u; index < numberOfItems; ++index)
173 const KeyValuePair& valueGet = propertiesMap->GetKeyValue(index);
175 if((Controller::TextFitInfo::Property::TEXT_FIT_ENABLE == valueGet.first.indexKey) || (TEXT_FIT_ENABLE_KEY == valueGet.first.stringKey))
178 enabled = valueGet.second.Get<bool>();
180 else if((Controller::TextFitInfo::Property::TEXT_FIT_MIN_SIZE == valueGet.first.indexKey) || (TEXT_FIT_MIN_SIZE_KEY == valueGet.first.stringKey))
183 minSize = valueGet.second.Get<float>();
186 else if((Controller::TextFitInfo::Property::TEXT_FIT_MAX_SIZE == valueGet.first.indexKey) || (TEXT_FIT_MAX_SIZE_KEY == valueGet.first.stringKey))
189 maxSize = valueGet.second.Get<float>();
192 else if((Controller::TextFitInfo::Property::TEXT_FIT_STEP_SIZE == valueGet.first.indexKey) || (TEXT_FIT_STEP_SIZE_KEY == valueGet.first.stringKey))
195 stepSize = valueGet.second.Get<float>();
196 isStepSizeSet = true;
198 else if((Controller::TextFitInfo::Property::TEXT_FIT_FONT_SIZE_TYPE == valueGet.first.indexKey) || (TEXT_FIT_FONT_SIZE_TYPE_KEY == valueGet.first.stringKey))
200 if("pixelSize" == valueGet.second.Get<std::string>())
202 type = Controller::FontSizeType::PIXEL_SIZE;
207 controller->SetTextFitEnabled(enabled);
210 controller->SetTextFitMinSize(minSize, type);
214 controller->SetTextFitMaxSize(maxSize, type);
218 controller->SetTextFitStepSize(stepSize, type);
225 Toolkit::TextLabel TextLabel::New()
227 // Create the implementation, temporarily owned by this handle on stack
228 IntrusivePtr<TextLabel> impl = new TextLabel();
230 // Pass ownership to CustomActor handle
231 Toolkit::TextLabel handle(*impl);
233 // Second-phase init of the implementation
234 // This can only be done after the CustomActor connection has been made...
240 void TextLabel::SetProperty(BaseObject* object, Property::Index index, const Property::Value& value)
242 Toolkit::TextLabel label = Toolkit::TextLabel::DownCast(Dali::BaseHandle(object));
246 TextLabel& impl(GetImpl(label));
247 DALI_ASSERT_ALWAYS(impl.mController && "No text contoller");
251 case Toolkit::DevelTextLabel::Property::RENDERING_BACKEND:
253 int backend = value.Get<int>();
255 #ifndef ENABLE_VECTOR_BASED_TEXT_RENDERING
256 if(DevelText::RENDERING_VECTOR_BASED == backend)
258 backend = TextAbstraction::BITMAP_GLYPH; // Fallback to bitmap-based rendering
261 if(impl.mRenderingBackend != backend)
263 impl.mRenderingBackend = backend;
264 impl.mTextUpdateNeeded = true;
266 // When using the vector-based rendering, the size of the GLyphs are different
267 TextAbstraction::GlyphType glyphType = (DevelText::RENDERING_VECTOR_BASED == impl.mRenderingBackend) ? TextAbstraction::VECTOR_GLYPH : TextAbstraction::BITMAP_GLYPH;
268 impl.mController->SetGlyphType(glyphType);
272 case Toolkit::TextLabel::Property::TEXT:
274 impl.mController->SetText(value.Get<std::string>());
276 if(impl.mController->HasAnchors())
278 // Forward input events to controller
279 impl.EnableGestureDetection(static_cast<GestureType::Value>(GestureType::TAP));
283 impl.DisableGestureDetection(static_cast<GestureType::Value>(GestureType::TAP));
288 case Toolkit::TextLabel::Property::FONT_FAMILY:
290 const std::string& fontFamily = value.Get<std::string>();
292 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "TextLabel::SetProperty Property::FONT_FAMILY newFont(%s)\n", fontFamily.c_str());
293 impl.mController->SetDefaultFontFamily(fontFamily);
296 case Toolkit::TextLabel::Property::FONT_STYLE:
298 SetFontStyleProperty(impl.mController, value, Text::FontStyle::DEFAULT);
301 case Toolkit::TextLabel::Property::POINT_SIZE:
303 const float pointSize = value.Get<float>();
305 if(!Equals(impl.mController->GetDefaultFontSize(Text::Controller::POINT_SIZE), pointSize))
307 impl.mController->SetDefaultFontSize(pointSize, Text::Controller::POINT_SIZE);
311 case Toolkit::TextLabel::Property::MULTI_LINE:
313 impl.mController->SetMultiLineEnabled(value.Get<bool>());
316 case Toolkit::TextLabel::Property::HORIZONTAL_ALIGNMENT:
318 Text::HorizontalAlignment::Type alignment(static_cast<Text::HorizontalAlignment::Type>(-1)); // Set to invalid value to ensure a valid mode does get set
319 if(Text::GetHorizontalAlignmentEnumeration(value, alignment))
321 impl.mController->SetHorizontalAlignment(alignment);
325 case Toolkit::TextLabel::Property::VERTICAL_ALIGNMENT:
327 Toolkit::Text::VerticalAlignment::Type alignment(static_cast<Text::VerticalAlignment::Type>(-1)); // Set to invalid value to ensure a valid mode does get set
328 if(Text::GetVerticalAlignmentEnumeration(value, alignment))
330 impl.mController->SetVerticalAlignment(alignment);
334 case Toolkit::TextLabel::Property::ENABLE_MARKUP:
336 const bool enableMarkup = value.Get<bool>();
337 impl.mController->SetMarkupProcessorEnabled(enableMarkup);
339 if(impl.mController->HasAnchors())
341 // Forward input events to controller
342 impl.EnableGestureDetection(static_cast<GestureType::Value>(GestureType::TAP));
346 impl.DisableGestureDetection(static_cast<GestureType::Value>(GestureType::TAP));
350 case Toolkit::TextLabel::Property::ENABLE_AUTO_SCROLL:
352 const bool enableAutoScroll = value.Get<bool>();
353 // If request to auto scroll is the same as current state then do nothing.
354 if(enableAutoScroll != impl.mController->IsAutoScrollEnabled())
356 // If request is disable (false) and auto scrolling is enabled then need to stop it
357 if(enableAutoScroll == false)
359 if(impl.mTextScroller)
361 impl.mTextScroller->StopScrolling();
364 // If request is enable (true) then start autoscroll as not already running
367 impl.mController->SetAutoScrollEnabled(enableAutoScroll);
372 case Toolkit::TextLabel::Property::AUTO_SCROLL_STOP_MODE:
374 Text::TextScrollerPtr textScroller = impl.GetTextScroller();
375 Toolkit::TextLabel::AutoScrollStopMode::Type stopMode = textScroller->GetStopMode();
376 if(Scripting::GetEnumerationProperty<Toolkit::TextLabel::AutoScrollStopMode::Type>(value,
377 AUTO_SCROLL_STOP_MODE_TABLE,
378 AUTO_SCROLL_STOP_MODE_TABLE_COUNT,
381 textScroller->SetStopMode(stopMode);
385 case Toolkit::TextLabel::Property::AUTO_SCROLL_SPEED:
387 impl.GetTextScroller()->SetSpeed(value.Get<int>());
390 case Toolkit::TextLabel::Property::AUTO_SCROLL_LOOP_COUNT:
392 impl.GetTextScroller()->SetLoopCount(value.Get<int>());
395 case Toolkit::TextLabel::Property::AUTO_SCROLL_LOOP_DELAY:
397 impl.GetTextScroller()->SetLoopDelay(value.Get<float>());
400 case Toolkit::TextLabel::Property::AUTO_SCROLL_GAP:
402 impl.GetTextScroller()->SetGap(value.Get<float>());
405 case Toolkit::TextLabel::Property::LINE_SPACING:
407 const float lineSpacing = value.Get<float>();
408 impl.mTextUpdateNeeded = impl.mController->SetDefaultLineSpacing(lineSpacing) || impl.mTextUpdateNeeded;
411 case Toolkit::TextLabel::Property::UNDERLINE:
413 impl.mTextUpdateNeeded = SetUnderlineProperties(impl.mController, value, Text::EffectStyle::DEFAULT) || impl.mTextUpdateNeeded;
416 case Toolkit::TextLabel::Property::SHADOW:
418 impl.mTextUpdateNeeded = SetShadowProperties(impl.mController, value, Text::EffectStyle::DEFAULT) || impl.mTextUpdateNeeded;
421 case Toolkit::TextLabel::Property::EMBOSS:
423 impl.mTextUpdateNeeded = SetEmbossProperties(impl.mController, value, Text::EffectStyle::DEFAULT) || impl.mTextUpdateNeeded;
426 case Toolkit::TextLabel::Property::OUTLINE:
428 impl.mTextUpdateNeeded = SetOutlineProperties(impl.mController, value, Text::EffectStyle::DEFAULT) || impl.mTextUpdateNeeded;
431 case Toolkit::TextLabel::Property::PIXEL_SIZE:
433 const float pixelSize = value.Get<float>();
434 DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel %p PIXEL_SIZE %f\n", impl.mController.Get(), pixelSize);
436 if(!Equals(impl.mController->GetDefaultFontSize(Text::Controller::PIXEL_SIZE), pixelSize))
438 impl.mController->SetDefaultFontSize(pixelSize, Text::Controller::PIXEL_SIZE);
442 case Toolkit::TextLabel::Property::ELLIPSIS:
444 const bool ellipsis = value.Get<bool>();
445 DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel %p ELLIPSIS %d\n", impl.mController.Get(), ellipsis);
447 impl.mController->SetTextElideEnabled(ellipsis);
450 case Toolkit::TextLabel::Property::LINE_WRAP_MODE:
452 Text::LineWrap::Mode lineWrapMode(static_cast<Text::LineWrap::Mode>(-1)); // Set to invalid value to ensure a valid mode does get set
453 if(GetLineWrapModeEnumeration(value, lineWrapMode))
455 DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel %p LineWrap::MODE %d\n", impl.mController.Get(), lineWrapMode);
456 impl.mController->SetLineWrapMode(lineWrapMode);
460 case Toolkit::DevelTextLabel::Property::VERTICAL_LINE_ALIGNMENT:
462 if(impl.mController->GetTextModel())
464 DevelText::VerticalLineAlignment::Type alignment = static_cast<DevelText::VerticalLineAlignment::Type>(value.Get<int>());
466 impl.mController->SetVerticalLineAlignment(alignment);
468 // Property doesn't affect the layout, only Visual must be updated
469 TextVisual::EnableRendererUpdate(impl.mVisual);
471 // No need to trigger full re-layout. Instead call UpdateRenderer() directly
472 TextVisual::UpdateRenderer(impl.mVisual);
476 case Toolkit::DevelTextLabel::Property::BACKGROUND:
478 impl.mTextUpdateNeeded = SetBackgroundProperties(impl.mController, value, Text::EffectStyle::DEFAULT) || impl.mTextUpdateNeeded;
481 case Toolkit::DevelTextLabel::Property::IGNORE_SPACES_AFTER_TEXT:
483 impl.mController->SetIgnoreSpacesAfterText(value.Get<bool>());
486 case Toolkit::DevelTextLabel::Property::MATCH_SYSTEM_LANGUAGE_DIRECTION:
488 impl.mController->SetMatchLayoutDirection(value.Get<bool>() ? DevelText::MatchLayoutDirection::LOCALE : DevelText::MatchLayoutDirection::CONTENTS);
491 case Toolkit::DevelTextLabel::Property::TEXT_FIT:
493 ParseTextFitProperty(impl.mController, value.GetMap());
494 impl.mController->SetTextFitChanged(true);
497 case Toolkit::DevelTextLabel::Property::MIN_LINE_SIZE:
499 const float lineSize = value.Get<float>();
500 impl.mTextUpdateNeeded = impl.mController->SetDefaultLineSize(lineSize) || impl.mTextUpdateNeeded;
503 case Toolkit::DevelTextLabel::Property::FONT_SIZE_SCALE:
505 const float scale = value.Get<float>();
506 DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel %p FONT_SIZE_SCALE %f\n", impl.mController.Get(), scale);
508 if(!Equals(impl.mController->GetFontSizeScale(), scale))
510 impl.mController->SetFontSizeScale(scale);
514 case Toolkit::DevelTextLabel::Property::ENABLE_FONT_SIZE_SCALE:
516 const bool enableFontSizeScale = value.Get<bool>();
517 if(!Equals(impl.mController->IsFontSizeScaleEnabled(), enableFontSizeScale))
519 impl.mController->SetFontSizeScaleEnabled(enableFontSizeScale);
523 case Toolkit::DevelTextLabel::Property::ELLIPSIS_POSITION:
525 DevelText::EllipsisPosition::Type ellipsisPositionType(static_cast<DevelText::EllipsisPosition::Type>(-1)); // Set to invalid value to ensure a valid mode does get set
526 if(GetEllipsisPositionTypeEnumeration(value, ellipsisPositionType))
528 DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel %p EllipsisPosition::Type %d\n", impl.mController.Get(), ellipsisPositionType);
529 impl.mController->SetEllipsisPosition(ellipsisPositionType);
533 case Toolkit::DevelTextLabel::Property::STRIKETHROUGH:
535 impl.mTextUpdateNeeded = SetStrikethroughProperties(impl.mController, value, Text::EffectStyle::DEFAULT) || impl.mTextUpdateNeeded;
538 case Toolkit::DevelTextLabel::Property::CHARACTER_SPACING:
540 const float characterSpacing = value.Get<float>();
541 impl.mController->SetCharacterSpacing(characterSpacing);
546 // Request relayout when text update is needed. It's necessary to call it
547 // as changing the property not via UI interaction brings no effect if only
548 // the mTextUpdateNeeded is changed.
549 if(impl.mTextUpdateNeeded)
551 // need to request relayout as size of text may have changed
552 impl.RequestTextRelayout();
557 Text::ControllerPtr TextLabel::GetTextController()
562 Property::Value TextLabel::GetProperty(BaseObject* object, Property::Index index)
564 Property::Value value;
566 Toolkit::TextLabel label = Toolkit::TextLabel::DownCast(Dali::BaseHandle(object));
570 TextLabel& impl(GetImpl(label));
571 DALI_ASSERT_DEBUG(impl.mController && "No text contoller");
575 case Toolkit::DevelTextLabel::Property::RENDERING_BACKEND:
577 value = impl.mRenderingBackend;
580 case Toolkit::TextLabel::Property::TEXT:
583 impl.mController->GetText(text);
587 case Toolkit::TextLabel::Property::FONT_FAMILY:
589 value = impl.mController->GetDefaultFontFamily();
592 case Toolkit::TextLabel::Property::FONT_STYLE:
594 GetFontStyleProperty(impl.mController, value, Text::FontStyle::DEFAULT);
597 case Toolkit::TextLabel::Property::POINT_SIZE:
599 value = impl.mController->GetDefaultFontSize(Text::Controller::POINT_SIZE);
602 case Toolkit::TextLabel::Property::MULTI_LINE:
604 value = impl.mController->IsMultiLineEnabled();
607 case Toolkit::TextLabel::Property::HORIZONTAL_ALIGNMENT:
609 const char* name = Text::GetHorizontalAlignmentString(impl.mController->GetHorizontalAlignment());
613 value = std::string(name);
617 case Toolkit::TextLabel::Property::VERTICAL_ALIGNMENT:
619 const char* name = Text::GetVerticalAlignmentString(impl.mController->GetVerticalAlignment());
622 value = std::string(name);
626 case Toolkit::TextLabel::Property::ENABLE_MARKUP:
628 value = impl.mController->IsMarkupProcessorEnabled();
631 case Toolkit::TextLabel::Property::ENABLE_AUTO_SCROLL:
633 value = impl.mController->IsAutoScrollEnabled();
636 case Toolkit::TextLabel::Property::AUTO_SCROLL_STOP_MODE:
638 if(impl.mTextScroller)
640 const char* mode = Scripting::GetEnumerationName<Toolkit::TextLabel::AutoScrollStopMode::Type>(impl.mTextScroller->GetStopMode(),
641 AUTO_SCROLL_STOP_MODE_TABLE,
642 AUTO_SCROLL_STOP_MODE_TABLE_COUNT);
645 value = std::string(mode);
650 case Toolkit::TextLabel::Property::AUTO_SCROLL_SPEED:
652 if(impl.mTextScroller)
654 value = impl.mTextScroller->GetSpeed();
658 case Toolkit::TextLabel::Property::AUTO_SCROLL_LOOP_COUNT:
660 if(impl.mTextScroller)
662 value = impl.mTextScroller->GetLoopCount();
666 case Toolkit::TextLabel::Property::AUTO_SCROLL_LOOP_DELAY:
668 if(impl.mTextScroller)
670 value = impl.mTextScroller->GetLoopDelay();
674 case Toolkit::TextLabel::Property::AUTO_SCROLL_GAP:
676 if(impl.mTextScroller)
678 value = impl.mTextScroller->GetGap();
682 case Toolkit::TextLabel::Property::LINE_SPACING:
684 value = impl.mController->GetDefaultLineSpacing();
687 case Toolkit::TextLabel::Property::UNDERLINE:
689 GetUnderlineProperties(impl.mController, value, Text::EffectStyle::DEFAULT);
692 case Toolkit::TextLabel::Property::SHADOW:
694 GetShadowProperties(impl.mController, value, Text::EffectStyle::DEFAULT);
697 case Toolkit::TextLabel::Property::EMBOSS:
699 GetEmbossProperties(impl.mController, value, Text::EffectStyle::DEFAULT);
702 case Toolkit::TextLabel::Property::OUTLINE:
704 GetOutlineProperties(impl.mController, value, Text::EffectStyle::DEFAULT);
707 case Toolkit::TextLabel::Property::PIXEL_SIZE:
709 value = impl.mController->GetDefaultFontSize(Text::Controller::PIXEL_SIZE);
712 case Toolkit::TextLabel::Property::ELLIPSIS:
714 value = impl.mController->IsTextElideEnabled();
717 case Toolkit::TextLabel::Property::LINE_WRAP_MODE:
719 value = impl.mController->GetLineWrapMode();
722 case Toolkit::TextLabel::Property::LINE_COUNT:
724 float width = label.GetProperty(Actor::Property::SIZE_WIDTH).Get<float>();
725 value = impl.mController->GetLineCount(width);
728 case Toolkit::DevelTextLabel::Property::TEXT_DIRECTION:
730 value = impl.mController->GetTextDirection();
733 case Toolkit::DevelTextLabel::Property::VERTICAL_LINE_ALIGNMENT:
735 value = impl.mController->GetVerticalLineAlignment();
738 case Toolkit::DevelTextLabel::Property::BACKGROUND:
740 GetBackgroundProperties(impl.mController, value, Text::EffectStyle::DEFAULT);
743 case Toolkit::DevelTextLabel::Property::IGNORE_SPACES_AFTER_TEXT:
745 value = impl.mController->IsIgnoreSpacesAfterText();
748 case Toolkit::DevelTextLabel::Property::MATCH_SYSTEM_LANGUAGE_DIRECTION:
750 value = impl.mController->GetMatchLayoutDirection() != DevelText::MatchLayoutDirection::CONTENTS;
753 case Toolkit::DevelTextLabel::Property::TEXT_FIT:
755 const bool enabled = impl.mController->IsTextFitEnabled();
756 const float minSize = impl.mController->GetTextFitMinSize();
757 const float maxSize = impl.mController->GetTextFitMaxSize();
758 const float stepSize = impl.mController->GetTextFitStepSize();
759 const float pointSize = impl.mController->GetTextFitPointSize();
762 map.Insert(TEXT_FIT_ENABLE_KEY, enabled);
763 map.Insert(TEXT_FIT_MIN_SIZE_KEY, minSize);
764 map.Insert(TEXT_FIT_MAX_SIZE_KEY, maxSize);
765 map.Insert(TEXT_FIT_STEP_SIZE_KEY, stepSize);
766 map.Insert(TEXT_FIT_FONT_SIZE_KEY, pointSize);
767 map.Insert(TEXT_FIT_FONT_SIZE_TYPE_KEY, "pointSize");
772 case Toolkit::DevelTextLabel::Property::MIN_LINE_SIZE:
774 value = impl.mController->GetDefaultLineSize();
777 case Toolkit::DevelTextLabel::Property::FONT_SIZE_SCALE:
779 value = impl.mController->GetFontSizeScale();
782 case Toolkit::DevelTextLabel::Property::ENABLE_FONT_SIZE_SCALE:
784 value = impl.mController->IsFontSizeScaleEnabled();
787 case Toolkit::DevelTextLabel::Property::ELLIPSIS_POSITION:
789 value = impl.mController->GetEllipsisPosition();
792 case Toolkit::DevelTextLabel::Property::STRIKETHROUGH:
794 GetStrikethroughProperties(impl.mController, value, Text::EffectStyle::DEFAULT);
797 case Toolkit::DevelTextLabel::Property::CHARACTER_SPACING:
799 value = impl.mController->GetCharacterSpacing();
808 bool TextLabel::DoConnectSignal(BaseObject* object, ConnectionTrackerInterface* tracker, const std::string& signalName, FunctorDelegate* functor)
810 Dali::BaseHandle handle(object);
812 bool connected(true);
813 Toolkit::TextLabel label = Toolkit::TextLabel::DownCast(handle);
815 if(0 == strcmp(signalName.c_str(), SIGNAL_ANCHOR_CLICKED))
819 Internal::TextLabel& labelImpl(GetImpl(label));
820 labelImpl.AnchorClickedSignal().Connect(tracker, functor);
823 else if(0 == strcmp(signalName.c_str(), SIGNAL_TEXT_FIT_CHANGED))
827 Internal::TextLabel& labelImpl(GetImpl(label));
828 labelImpl.TextFitChangedSignal().Connect(tracker, functor);
833 // signalName does not match any signal
840 DevelTextLabel::AnchorClickedSignalType& TextLabel::AnchorClickedSignal()
842 return mAnchorClickedSignal;
845 DevelTextLabel::TextFitChangedSignalType& TextLabel::TextFitChangedSignal()
847 return mTextFitChangedSignal;
850 void TextLabel::OnInitialize()
854 Property::Map propertyMap;
855 propertyMap.Add(Toolkit::Visual::Property::TYPE, Toolkit::Visual::TEXT);
857 mVisual = Toolkit::VisualFactory::Get().CreateVisual(propertyMap);
858 DevelControl::RegisterVisual(*this, Toolkit::TextLabel::Property::TEXT, mVisual);
860 TextVisual::SetAnimatableTextColorProperty(mVisual, Toolkit::TextLabel::Property::TEXT_COLOR);
862 mController = TextVisual::GetController(mVisual);
863 DALI_ASSERT_DEBUG(mController && "Invalid Text Controller")
865 mController->SetControlInterface(this);
866 mController->SetAnchorControlInterface(this);
868 // Use height-for-width negotiation by default
869 self.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH);
870 self.SetResizePolicy(ResizePolicy::DIMENSION_DEPENDENCY, Dimension::HEIGHT);
872 // Enable highlightability
873 self.SetProperty(Toolkit::DevelControl::Property::ACCESSIBILITY_HIGHLIGHTABLE, true);
875 // Enable the text ellipsis.
876 mController->SetTextElideEnabled(true); // If false then text larger than control will overflow
878 // Sets layoutDirection value
879 Dali::Stage stage = Dali::Stage::GetCurrent();
880 Dali::LayoutDirection::Type layoutDirection = static_cast<Dali::LayoutDirection::Type>(stage.GetRootLayer().GetProperty(Dali::Actor::Property::LAYOUT_DIRECTION).Get<int>());
881 mController->SetLayoutDirection(layoutDirection);
883 self.LayoutDirectionChangedSignal().Connect(this, &TextLabel::OnLayoutDirectionChanged);
885 Layout::Engine& engine = mController->GetLayoutEngine();
886 engine.SetCursorWidth(0u); // Do not layout space for the cursor.
888 DevelControl::SetAccessibilityConstructor(self, [](Dali::Actor actor) {
889 return std::unique_ptr<Dali::Accessibility::Accessible>(
890 new AccessibleImpl(actor, Dali::Accessibility::Role::LABEL));
893 Accessibility::Bridge::EnabledSignal().Connect(this, &TextLabel::OnAccessibilityStatusChanged);
894 Accessibility::Bridge::DisabledSignal().Connect(this, &TextLabel::OnAccessibilityStatusChanged);
897 void TextLabel::OnStyleChange(Toolkit::StyleManager styleManager, StyleChange::Type change)
899 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "TextLabel::OnStyleChange\n");
903 case StyleChange::DEFAULT_FONT_CHANGE:
905 // Property system did not set the font so should update it.
906 const std::string& newFont = GetImpl(styleManager).GetDefaultFontFamily();
907 DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel::OnStyleChange StyleChange::DEFAULT_FONT_CHANGE newFont(%s)\n", newFont.c_str());
908 mController->UpdateAfterFontChange(newFont);
912 case StyleChange::DEFAULT_FONT_SIZE_CHANGE:
914 GetImpl(styleManager).ApplyThemeStyle(Toolkit::Control(GetOwner()));
918 case StyleChange::THEME_CHANGE:
920 // Nothing to do, let control base class handle this
925 // Up call to Control
926 Control::OnStyleChange(styleManager, change);
929 void TextLabel::OnTap(const TapGesture& gesture)
931 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "TextLabel::OnTap %p\n", mController.Get());
933 // Deliver the tap before the focus event to controller; this allows us to detect when focus is gained due to tap-gestures
935 padding = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
936 const Vector2& localPoint = gesture.GetLocalPoint();
937 mController->AnchorEvent(localPoint.x - padding.start, localPoint.y - padding.top);
940 void TextLabel::AnchorClicked(const std::string& href)
942 Dali::Toolkit::TextLabel handle(GetOwner());
943 mAnchorClickedSignal.Emit(handle, href.c_str(), href.length());
946 Vector3 TextLabel::GetNaturalSize()
949 padding = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
951 Vector3 naturalSize = mController->GetNaturalSize();
952 naturalSize.width += (padding.start + padding.end);
953 naturalSize.height += (padding.top + padding.bottom);
958 float TextLabel::GetHeightForWidth(float width)
961 padding = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
963 return mController->GetHeightForWidth(width) + padding.top + padding.bottom;
966 void TextLabel::OnPropertySet(Property::Index index, const Property::Value& propertyValue)
968 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "TextLabel::OnPropertySet index[%d]\n", index);
972 case Toolkit::TextLabel::Property::TEXT_COLOR:
974 const Vector4& textColor = propertyValue.Get<Vector4>();
975 if(mController->GetDefaultColor() != textColor)
977 mController->SetDefaultColor(textColor);
978 mTextUpdateNeeded = true;
982 case Toolkit::TextLabel::Property::TEXT:
983 case Toolkit::TextLabel::Property::ENABLE_MARKUP:
985 CommonTextUtils::SynchronizeTextAnchorsInParent(Self(), mController, mAnchorActors);
990 Control::OnPropertySet(index, propertyValue); // up call to control for non-handled properties
996 void TextLabel::OnRelayout(const Vector2& size, RelayoutContainer& container)
998 DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel::OnRelayout\n");
1000 Actor self = Self();
1003 padding = self.GetProperty<Extents>(Toolkit::Control::Property::PADDING);
1005 Vector2 contentSize(size.x - (padding.start + padding.end), size.y - (padding.top + padding.bottom));
1007 if(mController->IsTextFitEnabled())
1009 mController->FitPointSizeforLayout(contentSize);
1010 mController->SetTextFitContentSize(contentSize);
1013 // Support Right-To-Left
1014 Dali::LayoutDirection::Type layoutDirection = mController->GetLayoutDirection(self);
1016 const Text::Controller::UpdateTextType updateTextType = mController->Relayout(contentSize, layoutDirection);
1018 if((Text::Controller::NONE_UPDATED != (Text::Controller::MODEL_UPDATED & updateTextType)) || mTextUpdateNeeded)
1020 DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel::OnRelayout IsAutoScrollEnabled[%s] [%p]\n", (mController->IsAutoScrollEnabled()) ? "true" : "false", this);
1022 // Update the visual
1023 TextVisual::EnableRendererUpdate(mVisual);
1025 // Support Right-To-Left of padding
1026 if(Dali::LayoutDirection::RIGHT_TO_LEFT == layoutDirection)
1028 std::swap(padding.start, padding.end);
1031 // Calculate the size of the visual that can fit the text
1032 Size layoutSize = mController->GetTextModel()->GetLayoutSize();
1033 layoutSize.x = contentSize.x;
1035 const Vector2& shadowOffset = mController->GetTextModel()->GetShadowOffset();
1036 if(shadowOffset.y > Math::MACHINE_EPSILON_1)
1038 layoutSize.y += shadowOffset.y;
1041 float outlineWidth = mController->GetTextModel()->GetOutlineWidth();
1042 layoutSize.y += outlineWidth * 2.0f;
1043 layoutSize.y = std::min(layoutSize.y, contentSize.y);
1045 // Calculate the offset for vertical alignment only, as the layout engine will do the horizontal alignment.
1046 Vector2 alignmentOffset;
1047 alignmentOffset.x = 0.0f;
1048 alignmentOffset.y = (contentSize.y - layoutSize.y) * VERTICAL_ALIGNMENT_TABLE[mController->GetVerticalAlignment()];
1050 Property::Map visualTransform;
1051 visualTransform.Add(Toolkit::Visual::Transform::Property::SIZE, layoutSize)
1052 .Add(Toolkit::Visual::Transform::Property::SIZE_POLICY, Vector2(Toolkit::Visual::Transform::Policy::ABSOLUTE, Toolkit::Visual::Transform::Policy::ABSOLUTE))
1053 .Add(Toolkit::Visual::Transform::Property::OFFSET, Vector2(padding.start, padding.top) + alignmentOffset)
1054 .Add(Toolkit::Visual::Transform::Property::OFFSET_POLICY, Vector2(Toolkit::Visual::Transform::Policy::ABSOLUTE, Toolkit::Visual::Transform::Policy::ABSOLUTE))
1055 .Add(Toolkit::Visual::Transform::Property::ORIGIN, Toolkit::Align::TOP_BEGIN)
1056 .Add(Toolkit::Visual::Transform::Property::ANCHOR_POINT, Toolkit::Align::TOP_BEGIN);
1057 mVisual.SetTransformAndSize(visualTransform, size);
1059 if(mController->IsAutoScrollEnabled())
1061 SetUpAutoScrolling();
1064 mTextUpdateNeeded = false;
1067 if(mController->IsTextFitChanged())
1069 EmitTextFitChangedSignal();
1070 mController->SetTextFitChanged(false);
1074 void TextLabel::RequestTextRelayout()
1077 // Signal that a Relayout may be needed
1080 void TextLabel::SetUpAutoScrolling()
1082 const Size& controlSize = mController->GetView().GetControlSize();
1083 const Size textNaturalSize = GetNaturalSize().GetVectorXY(); // As relayout of text may not be done at this point natural size is used to get size. Single line scrolling only.
1084 const Text::CharacterDirection direction = mController->GetAutoScrollDirection();
1086 DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel::SetUpAutoScrolling textNaturalSize[%f,%f] controlSize[%f,%f]\n", textNaturalSize.x, textNaturalSize.y, controlSize.x, controlSize.y);
1090 DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel::SetUpAutoScrolling Creating default TextScoller\n");
1092 // If speed, loopCount or gap not set via property system then will need to create a TextScroller with defaults
1093 mTextScroller = Text::TextScroller::New(*this);
1096 // Calculate the actual gap before scrolling wraps.
1097 int textPadding = std::max(controlSize.x - textNaturalSize.x, 0.0f);
1098 float wrapGap = std::max(mTextScroller->GetGap(), textPadding);
1099 Vector2 textureSize = textNaturalSize + Vector2(wrapGap, 0.0f); // Add the gap as a part of the texture
1101 // Create a texture of the text for scrolling
1102 Size verifiedSize = textureSize;
1103 const int maxTextureSize = Dali::GetMaxTextureSize();
1105 //if the texture size width exceed maxTextureSize, modify the visual model size and enabled the ellipsis
1106 bool actualellipsis = mController->IsTextElideEnabled();
1107 if(verifiedSize.width > maxTextureSize)
1109 verifiedSize.width = maxTextureSize;
1110 if(textNaturalSize.width > maxTextureSize)
1112 mController->SetTextElideEnabled(true);
1114 GetHeightForWidth(maxTextureSize);
1115 wrapGap = std::max(maxTextureSize - textNaturalSize.width, 0.0f);
1118 Text::TypesetterPtr typesetter = Text::Typesetter::New(mController->GetTextModel());
1120 PixelData data = typesetter->Render(verifiedSize, mController->GetTextDirection(), Text::Typesetter::RENDER_TEXT_AND_STYLES, true, Pixel::RGBA8888); // ignore the horizontal alignment
1121 Texture texture = Texture::New(Dali::TextureType::TEXTURE_2D,
1122 data.GetPixelFormat(),
1125 texture.Upload(data);
1127 TextureSet textureSet = TextureSet::New();
1128 textureSet.SetTexture(0u, texture);
1130 // Filter mode needs to be set to linear to produce better quality while scaling.
1131 Sampler sampler = Sampler::New();
1132 sampler.SetFilterMode(FilterMode::LINEAR, FilterMode::LINEAR);
1133 sampler.SetWrapMode(Dali::WrapMode::DEFAULT, Dali::WrapMode::REPEAT, Dali::WrapMode::DEFAULT); // Wrap the texture in the x direction
1134 textureSet.SetSampler(0u, sampler);
1136 // Set parameters for scrolling
1137 Renderer renderer = static_cast<Internal::Visual::Base&>(GetImplementation(mVisual)).GetRenderer();
1138 mTextScroller->SetParameters(Self(), renderer, textureSet, controlSize, verifiedSize, wrapGap, direction, mController->GetHorizontalAlignment(), mController->GetVerticalAlignment());
1139 mController->SetTextElideEnabled(actualellipsis);
1142 void TextLabel::ScrollingFinished()
1144 // Pure Virtual from TextScroller Interface
1145 DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel::ScrollingFinished\n");
1146 mController->SetAutoScrollEnabled(false);
1147 RequestTextRelayout();
1150 void TextLabel::OnLayoutDirectionChanged(Actor actor, LayoutDirection::Type type)
1152 mController->ChangedLayoutDirection();
1155 void TextLabel::EmitTextFitChangedSignal()
1157 Dali::Toolkit::TextLabel handle(GetOwner());
1158 mTextFitChangedSignal.Emit(handle);
1161 void TextLabel::OnAccessibilityStatusChanged()
1163 CommonTextUtils::SynchronizeTextAnchorsInParent(Self(), mController, mAnchorActors);
1166 TextLabel::TextLabel()
1167 : Control(ControlBehaviour(CONTROL_BEHAVIOUR_DEFAULT)),
1168 mRenderingBackend(DEFAULT_RENDERING_BACKEND),
1169 mTextUpdateNeeded(false)
1173 TextLabel::~TextLabel()
1177 Vector<Vector2> TextLabel::GetTextSize(const uint32_t startIndex, const uint32_t endIndex) const
1179 return mController->GetTextSize(startIndex, endIndex);
1182 Vector<Vector2> TextLabel::GetTextPosition(const uint32_t startIndex, const uint32_t endIndex) const
1184 return mController->GetTextPosition(startIndex, endIndex);
1187 std::string TextLabel::AccessibleImpl::GetNameRaw() const
1189 auto self = Toolkit::TextLabel::DownCast(Self());
1190 return self.GetProperty(Toolkit::TextLabel::Property::TEXT).Get<std::string>();
1193 Property::Index TextLabel::AccessibleImpl::GetNamePropertyIndex()
1195 return Toolkit::TextLabel::Property::TEXT;
1198 std::string TextLabel::AccessibleImpl::GetText(size_t startOffset, size_t endOffset) const
1200 if(endOffset <= startOffset)
1205 auto self = Toolkit::TextLabel::DownCast(Self());
1206 auto text = self.GetProperty(Toolkit::TextLabel::Property::TEXT).Get<std::string>();
1208 if(startOffset > text.size() || endOffset > text.size())
1213 return text.substr(startOffset, endOffset - startOffset);
1216 size_t TextLabel::AccessibleImpl::GetCharacterCount() const
1218 auto self = Toolkit::TextLabel::DownCast(Self());
1219 auto text = self.GetProperty(Toolkit::TextLabel::Property::TEXT).Get<std::string>();
1224 size_t TextLabel::AccessibleImpl::GetCursorOffset() const
1229 bool TextLabel::AccessibleImpl::SetCursorOffset(size_t offset)
1234 Dali::Accessibility::Range TextLabel::AccessibleImpl::GetTextAtOffset(size_t offset, Dali::Accessibility::TextBoundary boundary) const
1236 auto self = Toolkit::TextLabel::DownCast(Self());
1237 auto text = self.GetProperty(Toolkit::TextLabel::Property::TEXT).Get<std::string>();
1238 auto textSize = text.size();
1240 auto range = Dali::Accessibility::Range{};
1244 case Dali::Accessibility::TextBoundary::CHARACTER:
1246 if(offset < textSize)
1248 range.content = text[offset];
1249 range.startOffset = offset;
1250 range.endOffset = offset + 1;
1254 case Dali::Accessibility::TextBoundary::WORD:
1255 case Dali::Accessibility::TextBoundary::LINE:
1257 auto textString = text.c_str();
1258 auto breaks = std::vector<char>(textSize, 0);
1260 if(boundary == Dali::Accessibility::TextBoundary::WORD)
1262 Accessibility::Accessible::FindWordSeparationsUtf8(reinterpret_cast<const utf8_t*>(textString), textSize, "", breaks.data());
1266 Accessibility::Accessible::FindLineSeparationsUtf8(reinterpret_cast<const utf8_t*>(textString), textSize, "", breaks.data());
1271 while(index < textSize && counter <= offset)
1276 while(breaks[index])
1284 if(boundary == Dali::Accessibility::TextBoundary::WORD)
1288 if(boundary == Dali::Accessibility::TextBoundary::LINE)
1294 if((counter > 0) && ((counter - 1) == offset))
1296 range.content = text.substr(start, index - start + 1);
1297 range.startOffset = start;
1298 range.endOffset = index + 1;
1301 if(boundary == Dali::Accessibility::TextBoundary::LINE)
1308 case Dali::Accessibility::TextBoundary::SENTENCE:
1310 /* not supported by default */
1313 case Dali::Accessibility::TextBoundary::PARAGRAPH:
1315 /* Paragraph is not supported by libunibreak library */
1325 Dali::Accessibility::Range TextLabel::AccessibleImpl::GetRangeOfSelection(size_t selectionIndex) const
1327 // Since DALi supports only one selection indexes higher than 0 are ignored
1328 if(selectionIndex > 0)
1333 auto self = Toolkit::TextLabel::DownCast(Self());
1334 auto controller = Dali::Toolkit::GetImpl(self).GetTextController();
1335 std::string value{};
1336 controller->RetrieveSelection(value);
1337 auto indices = controller->GetSelectionIndexes();
1339 return {static_cast<size_t>(indices.first), static_cast<size_t>(indices.second), value};
1342 bool TextLabel::AccessibleImpl::RemoveSelection(size_t selectionIndex)
1344 // Since DALi supports only one selection indexes higher than 0 are ignored
1345 if(selectionIndex > 0)
1350 auto self = Toolkit::TextLabel::DownCast(Self());
1351 Dali::Toolkit::GetImpl(self).GetTextController()->SetSelection(0, 0);
1355 bool TextLabel::AccessibleImpl::SetRangeOfSelection(size_t selectionIndex, size_t startOffset, size_t endOffset)
1357 // Since DALi supports only one selection indexes higher than 0 are ignored
1358 if(selectionIndex > 0)
1363 auto self = Toolkit::TextLabel::DownCast(Self());
1364 Dali::Toolkit::GetImpl(self).GetTextController()->SetSelection(startOffset, endOffset);
1368 int32_t TextLabel::AccessibleImpl::GetLinkCount() const
1370 auto self = Toolkit::TextLabel::DownCast(Self());
1371 return Dali::Toolkit::GetImpl(self).mAnchorActors.size();
1374 Accessibility::Hyperlink* TextLabel::AccessibleImpl::GetLink(int32_t linkIndex) const
1376 if(linkIndex < 0 || linkIndex >= GetLinkCount())
1380 auto self = Toolkit::TextLabel::DownCast(Self());
1381 auto anchorActor = Dali::Toolkit::GetImpl(self).mAnchorActors[linkIndex];
1382 return dynamic_cast<Accessibility::Hyperlink*>(Dali::Accessibility::Accessible::Get(anchorActor));
1385 int32_t TextLabel::AccessibleImpl::GetLinkIndex(int32_t characterOffset) const
1387 auto self = Toolkit::TextLabel::DownCast(Self());
1388 auto controller = Dali::Toolkit::GetImpl(self).GetTextController();
1389 return controller->GetAnchorIndex(static_cast<size_t>(characterOffset));
1392 } // namespace Internal
1394 } // namespace Toolkit