2 * Copyright (c) 2021 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, "ellipsisPosition", INTEGER, ELLIPSIS_POSITION )
141 DALI_ANIMATABLE_PROPERTY_REGISTRATION_WITH_DEFAULT(Toolkit, TextLabel, "textColor", Color::BLACK, TEXT_COLOR )
142 DALI_ANIMATABLE_PROPERTY_COMPONENT_REGISTRATION(Toolkit, TextLabel, "textColorRed", TEXT_COLOR_RED, TEXT_COLOR, 0)
143 DALI_ANIMATABLE_PROPERTY_COMPONENT_REGISTRATION(Toolkit, TextLabel, "textColorGreen", TEXT_COLOR_GREEN, TEXT_COLOR, 1)
144 DALI_ANIMATABLE_PROPERTY_COMPONENT_REGISTRATION(Toolkit, TextLabel, "textColorBlue", TEXT_COLOR_BLUE, TEXT_COLOR, 2)
145 DALI_ANIMATABLE_PROPERTY_COMPONENT_REGISTRATION(Toolkit, TextLabel, "textColorAlpha", TEXT_COLOR_ALPHA, TEXT_COLOR, 3)
147 DALI_SIGNAL_REGISTRATION(Toolkit, TextLabel, "anchorClicked", SIGNAL_ANCHOR_CLICKED)
148 DALI_SIGNAL_REGISTRATION(Toolkit, TextLabel, "textFitChanged", SIGNAL_TEXT_FIT_CHANGED)
150 DALI_TYPE_REGISTRATION_END()
153 /// Parses the property map for the TEXT_FIT property
154 void ParseTextFitProperty(Text::ControllerPtr& controller, const Property::Map* propertiesMap)
156 if(propertiesMap && !propertiesMap->Empty())
158 bool enabled = false;
161 float stepSize = 0.f;
162 bool isMinSizeSet = false, isMaxSizeSet = false, isStepSizeSet = false;
163 Controller::FontSizeType type = Controller::FontSizeType::POINT_SIZE;
165 const unsigned int numberOfItems = propertiesMap->Count();
167 // Parses and applies
168 for(unsigned int index = 0u; index < numberOfItems; ++index)
170 const KeyValuePair& valueGet = propertiesMap->GetKeyValue(index);
172 if((Controller::TextFitInfo::Property::TEXT_FIT_ENABLE == valueGet.first.indexKey) || (TEXT_FIT_ENABLE_KEY == valueGet.first.stringKey))
175 enabled = valueGet.second.Get<bool>();
177 else if((Controller::TextFitInfo::Property::TEXT_FIT_MIN_SIZE == valueGet.first.indexKey) || (TEXT_FIT_MIN_SIZE_KEY == valueGet.first.stringKey))
180 minSize = valueGet.second.Get<float>();
183 else if((Controller::TextFitInfo::Property::TEXT_FIT_MAX_SIZE == valueGet.first.indexKey) || (TEXT_FIT_MAX_SIZE_KEY == valueGet.first.stringKey))
186 maxSize = valueGet.second.Get<float>();
189 else if((Controller::TextFitInfo::Property::TEXT_FIT_STEP_SIZE == valueGet.first.indexKey) || (TEXT_FIT_STEP_SIZE_KEY == valueGet.first.stringKey))
192 stepSize = valueGet.second.Get<float>();
193 isStepSizeSet = true;
195 else if((Controller::TextFitInfo::Property::TEXT_FIT_FONT_SIZE_TYPE == valueGet.first.indexKey) || (TEXT_FIT_FONT_SIZE_TYPE_KEY == valueGet.first.stringKey))
197 if("pixelSize" == valueGet.second.Get<std::string>())
199 type = Controller::FontSizeType::PIXEL_SIZE;
204 controller->SetTextFitEnabled(enabled);
207 controller->SetTextFitMinSize(minSize, type);
211 controller->SetTextFitMaxSize(maxSize, type);
215 controller->SetTextFitStepSize(stepSize, type);
222 Toolkit::TextLabel TextLabel::New()
224 // Create the implementation, temporarily owned by this handle on stack
225 IntrusivePtr<TextLabel> impl = new TextLabel();
227 // Pass ownership to CustomActor handle
228 Toolkit::TextLabel handle(*impl);
230 // Second-phase init of the implementation
231 // This can only be done after the CustomActor connection has been made...
237 void TextLabel::SetProperty(BaseObject* object, Property::Index index, const Property::Value& value)
239 Toolkit::TextLabel label = Toolkit::TextLabel::DownCast(Dali::BaseHandle(object));
243 TextLabel& impl(GetImpl(label));
244 DALI_ASSERT_ALWAYS(impl.mController && "No text contoller");
248 case Toolkit::DevelTextLabel::Property::RENDERING_BACKEND:
250 int backend = value.Get<int>();
252 #ifndef ENABLE_VECTOR_BASED_TEXT_RENDERING
253 if(DevelText::RENDERING_VECTOR_BASED == backend)
255 backend = TextAbstraction::BITMAP_GLYPH; // Fallback to bitmap-based rendering
258 if(impl.mRenderingBackend != backend)
260 impl.mRenderingBackend = backend;
261 impl.mTextUpdateNeeded = true;
263 // When using the vector-based rendering, the size of the GLyphs are different
264 TextAbstraction::GlyphType glyphType = (DevelText::RENDERING_VECTOR_BASED == impl.mRenderingBackend) ? TextAbstraction::VECTOR_GLYPH : TextAbstraction::BITMAP_GLYPH;
265 impl.mController->SetGlyphType(glyphType);
269 case Toolkit::TextLabel::Property::TEXT:
271 impl.mController->SetText(value.Get<std::string>());
273 if(impl.mController->HasAnchors())
275 // Forward input events to controller
276 impl.EnableGestureDetection(static_cast<GestureType::Value>(GestureType::TAP));
280 impl.DisableGestureDetection(static_cast<GestureType::Value>(GestureType::TAP));
285 case Toolkit::TextLabel::Property::FONT_FAMILY:
287 const std::string& fontFamily = value.Get<std::string>();
289 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "TextLabel::SetProperty Property::FONT_FAMILY newFont(%s)\n", fontFamily.c_str());
290 impl.mController->SetDefaultFontFamily(fontFamily);
293 case Toolkit::TextLabel::Property::FONT_STYLE:
295 SetFontStyleProperty(impl.mController, value, Text::FontStyle::DEFAULT);
298 case Toolkit::TextLabel::Property::POINT_SIZE:
300 const float pointSize = value.Get<float>();
302 if(!Equals(impl.mController->GetDefaultFontSize(Text::Controller::POINT_SIZE), pointSize))
304 impl.mController->SetDefaultFontSize(pointSize, Text::Controller::POINT_SIZE);
308 case Toolkit::TextLabel::Property::MULTI_LINE:
310 impl.mController->SetMultiLineEnabled(value.Get<bool>());
313 case Toolkit::TextLabel::Property::HORIZONTAL_ALIGNMENT:
315 Text::HorizontalAlignment::Type alignment(static_cast<Text::HorizontalAlignment::Type>(-1)); // Set to invalid value to ensure a valid mode does get set
316 if(Text::GetHorizontalAlignmentEnumeration(value, alignment))
318 impl.mController->SetHorizontalAlignment(alignment);
322 case Toolkit::TextLabel::Property::VERTICAL_ALIGNMENT:
324 Toolkit::Text::VerticalAlignment::Type alignment(static_cast<Text::VerticalAlignment::Type>(-1)); // Set to invalid value to ensure a valid mode does get set
325 if(Text::GetVerticalAlignmentEnumeration(value, alignment))
327 impl.mController->SetVerticalAlignment(alignment);
331 case Toolkit::TextLabel::Property::ENABLE_MARKUP:
333 const bool enableMarkup = value.Get<bool>();
334 impl.mController->SetMarkupProcessorEnabled(enableMarkup);
336 if(impl.mController->HasAnchors())
338 // Forward input events to controller
339 impl.EnableGestureDetection(static_cast<GestureType::Value>(GestureType::TAP));
343 impl.DisableGestureDetection(static_cast<GestureType::Value>(GestureType::TAP));
347 case Toolkit::TextLabel::Property::ENABLE_AUTO_SCROLL:
349 const bool enableAutoScroll = value.Get<bool>();
350 // If request to auto scroll is the same as current state then do nothing.
351 if(enableAutoScroll != impl.mController->IsAutoScrollEnabled())
353 // If request is disable (false) and auto scrolling is enabled then need to stop it
354 if(enableAutoScroll == false)
356 if(impl.mTextScroller)
358 impl.mTextScroller->StopScrolling();
361 // If request is enable (true) then start autoscroll as not already running
364 impl.mController->SetAutoScrollEnabled(enableAutoScroll);
369 case Toolkit::TextLabel::Property::AUTO_SCROLL_STOP_MODE:
371 Text::TextScrollerPtr textScroller = impl.GetTextScroller();
372 Toolkit::TextLabel::AutoScrollStopMode::Type stopMode = textScroller->GetStopMode();
373 if(Scripting::GetEnumerationProperty<Toolkit::TextLabel::AutoScrollStopMode::Type>(value,
374 AUTO_SCROLL_STOP_MODE_TABLE,
375 AUTO_SCROLL_STOP_MODE_TABLE_COUNT,
378 textScroller->SetStopMode(stopMode);
382 case Toolkit::TextLabel::Property::AUTO_SCROLL_SPEED:
384 impl.GetTextScroller()->SetSpeed(value.Get<int>());
387 case Toolkit::TextLabel::Property::AUTO_SCROLL_LOOP_COUNT:
389 impl.GetTextScroller()->SetLoopCount(value.Get<int>());
392 case Toolkit::TextLabel::Property::AUTO_SCROLL_LOOP_DELAY:
394 impl.GetTextScroller()->SetLoopDelay(value.Get<float>());
397 case Toolkit::TextLabel::Property::AUTO_SCROLL_GAP:
399 impl.GetTextScroller()->SetGap(value.Get<float>());
402 case Toolkit::TextLabel::Property::LINE_SPACING:
404 const float lineSpacing = value.Get<float>();
405 impl.mTextUpdateNeeded = impl.mController->SetDefaultLineSpacing(lineSpacing) || impl.mTextUpdateNeeded;
408 case Toolkit::TextLabel::Property::UNDERLINE:
410 impl.mTextUpdateNeeded = SetUnderlineProperties(impl.mController, value, Text::EffectStyle::DEFAULT) || impl.mTextUpdateNeeded;
413 case Toolkit::TextLabel::Property::SHADOW:
415 impl.mTextUpdateNeeded = SetShadowProperties(impl.mController, value, Text::EffectStyle::DEFAULT) || impl.mTextUpdateNeeded;
418 case Toolkit::TextLabel::Property::EMBOSS:
420 impl.mTextUpdateNeeded = SetEmbossProperties(impl.mController, value, Text::EffectStyle::DEFAULT) || impl.mTextUpdateNeeded;
423 case Toolkit::TextLabel::Property::OUTLINE:
425 impl.mTextUpdateNeeded = SetOutlineProperties(impl.mController, value, Text::EffectStyle::DEFAULT) || impl.mTextUpdateNeeded;
428 case Toolkit::TextLabel::Property::PIXEL_SIZE:
430 const float pixelSize = value.Get<float>();
431 DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel %p PIXEL_SIZE %f\n", impl.mController.Get(), pixelSize);
433 if(!Equals(impl.mController->GetDefaultFontSize(Text::Controller::PIXEL_SIZE), pixelSize))
435 impl.mController->SetDefaultFontSize(pixelSize, Text::Controller::PIXEL_SIZE);
439 case Toolkit::TextLabel::Property::ELLIPSIS:
441 const bool ellipsis = value.Get<bool>();
442 DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel %p ELLIPSIS %d\n", impl.mController.Get(), ellipsis);
444 impl.mController->SetTextElideEnabled(ellipsis);
447 case Toolkit::TextLabel::Property::LINE_WRAP_MODE:
449 Text::LineWrap::Mode lineWrapMode(static_cast<Text::LineWrap::Mode>(-1)); // Set to invalid value to ensure a valid mode does get set
450 if(GetLineWrapModeEnumeration(value, lineWrapMode))
452 DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel %p LineWrap::MODE %d\n", impl.mController.Get(), lineWrapMode);
453 impl.mController->SetLineWrapMode(lineWrapMode);
457 case Toolkit::DevelTextLabel::Property::VERTICAL_LINE_ALIGNMENT:
459 if(impl.mController->GetTextModel())
461 DevelText::VerticalLineAlignment::Type alignment = static_cast<DevelText::VerticalLineAlignment::Type>(value.Get<int>());
463 impl.mController->SetVerticalLineAlignment(alignment);
465 // Property doesn't affect the layout, only Visual must be updated
466 TextVisual::EnableRendererUpdate(impl.mVisual);
468 // No need to trigger full re-layout. Instead call UpdateRenderer() directly
469 TextVisual::UpdateRenderer(impl.mVisual);
473 case Toolkit::DevelTextLabel::Property::BACKGROUND:
475 impl.mTextUpdateNeeded = SetBackgroundProperties(impl.mController, value, Text::EffectStyle::DEFAULT) || impl.mTextUpdateNeeded;
478 case Toolkit::DevelTextLabel::Property::IGNORE_SPACES_AFTER_TEXT:
480 impl.mController->SetIgnoreSpacesAfterText(value.Get<bool>());
483 case Toolkit::DevelTextLabel::Property::MATCH_SYSTEM_LANGUAGE_DIRECTION:
485 impl.mController->SetMatchLayoutDirection(value.Get<bool>() ? DevelText::MatchLayoutDirection::LOCALE : DevelText::MatchLayoutDirection::CONTENTS);
488 case Toolkit::DevelTextLabel::Property::TEXT_FIT:
490 ParseTextFitProperty(impl.mController, value.GetMap());
491 impl.mController->SetTextFitChanged(true);
494 case Toolkit::DevelTextLabel::Property::MIN_LINE_SIZE:
496 const float lineSize = value.Get<float>();
497 impl.mTextUpdateNeeded = impl.mController->SetDefaultLineSize(lineSize) || impl.mTextUpdateNeeded;
500 case Toolkit::DevelTextLabel::Property::FONT_SIZE_SCALE:
502 const float scale = value.Get<float>();
503 DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel %p FONT_SIZE_SCALE %f\n", impl.mController.Get(), scale);
505 if(!Equals(impl.mController->GetFontSizeScale(), scale))
507 impl.mController->SetFontSizeScale(scale);
511 case Toolkit::DevelTextLabel::Property::ELLIPSIS_POSITION:
513 DevelText::EllipsisPosition::Type ellipsisPositionType(static_cast<DevelText::EllipsisPosition::Type>(-1)); // Set to invalid value to ensure a valid mode does get set
514 if(GetEllipsisPositionTypeEnumeration(value, ellipsisPositionType))
516 DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel %p EllipsisPosition::Type %d\n", impl.mController.Get(), ellipsisPositionType);
517 impl.mController->SetEllipsisPosition(ellipsisPositionType);
523 // Request relayout when text update is needed. It's necessary to call it
524 // as changing the property not via UI interaction brings no effect if only
525 // the mTextUpdateNeeded is changed.
526 if(impl.mTextUpdateNeeded)
528 // need to request relayout as size of text may have changed
529 impl.RequestTextRelayout();
534 Text::ControllerPtr TextLabel::GetTextController()
539 Property::Value TextLabel::GetProperty(BaseObject* object, Property::Index index)
541 Property::Value value;
543 Toolkit::TextLabel label = Toolkit::TextLabel::DownCast(Dali::BaseHandle(object));
547 TextLabel& impl(GetImpl(label));
548 DALI_ASSERT_DEBUG(impl.mController && "No text contoller");
552 case Toolkit::DevelTextLabel::Property::RENDERING_BACKEND:
554 value = impl.mRenderingBackend;
557 case Toolkit::TextLabel::Property::TEXT:
560 impl.mController->GetText(text);
564 case Toolkit::TextLabel::Property::FONT_FAMILY:
566 value = impl.mController->GetDefaultFontFamily();
569 case Toolkit::TextLabel::Property::FONT_STYLE:
571 GetFontStyleProperty(impl.mController, value, Text::FontStyle::DEFAULT);
574 case Toolkit::TextLabel::Property::POINT_SIZE:
576 value = impl.mController->GetDefaultFontSize(Text::Controller::POINT_SIZE);
579 case Toolkit::TextLabel::Property::MULTI_LINE:
581 value = impl.mController->IsMultiLineEnabled();
584 case Toolkit::TextLabel::Property::HORIZONTAL_ALIGNMENT:
586 const char* name = Text::GetHorizontalAlignmentString(impl.mController->GetHorizontalAlignment());
590 value = std::string(name);
594 case Toolkit::TextLabel::Property::VERTICAL_ALIGNMENT:
596 const char* name = Text::GetVerticalAlignmentString(impl.mController->GetVerticalAlignment());
599 value = std::string(name);
603 case Toolkit::TextLabel::Property::ENABLE_MARKUP:
605 value = impl.mController->IsMarkupProcessorEnabled();
608 case Toolkit::TextLabel::Property::ENABLE_AUTO_SCROLL:
610 value = impl.mController->IsAutoScrollEnabled();
613 case Toolkit::TextLabel::Property::AUTO_SCROLL_STOP_MODE:
615 if(impl.mTextScroller)
617 const char* mode = Scripting::GetEnumerationName<Toolkit::TextLabel::AutoScrollStopMode::Type>(impl.mTextScroller->GetStopMode(),
618 AUTO_SCROLL_STOP_MODE_TABLE,
619 AUTO_SCROLL_STOP_MODE_TABLE_COUNT);
622 value = std::string(mode);
627 case Toolkit::TextLabel::Property::AUTO_SCROLL_SPEED:
629 if(impl.mTextScroller)
631 value = impl.mTextScroller->GetSpeed();
635 case Toolkit::TextLabel::Property::AUTO_SCROLL_LOOP_COUNT:
637 if(impl.mTextScroller)
639 value = impl.mTextScroller->GetLoopCount();
643 case Toolkit::TextLabel::Property::AUTO_SCROLL_LOOP_DELAY:
645 if(impl.mTextScroller)
647 value = impl.mTextScroller->GetLoopDelay();
651 case Toolkit::TextLabel::Property::AUTO_SCROLL_GAP:
653 if(impl.mTextScroller)
655 value = impl.mTextScroller->GetGap();
659 case Toolkit::TextLabel::Property::LINE_SPACING:
661 value = impl.mController->GetDefaultLineSpacing();
664 case Toolkit::TextLabel::Property::UNDERLINE:
666 GetUnderlineProperties(impl.mController, value, Text::EffectStyle::DEFAULT);
669 case Toolkit::TextLabel::Property::SHADOW:
671 GetShadowProperties(impl.mController, value, Text::EffectStyle::DEFAULT);
674 case Toolkit::TextLabel::Property::EMBOSS:
676 GetEmbossProperties(impl.mController, value, Text::EffectStyle::DEFAULT);
679 case Toolkit::TextLabel::Property::OUTLINE:
681 GetOutlineProperties(impl.mController, value, Text::EffectStyle::DEFAULT);
684 case Toolkit::TextLabel::Property::PIXEL_SIZE:
686 value = impl.mController->GetDefaultFontSize(Text::Controller::PIXEL_SIZE);
689 case Toolkit::TextLabel::Property::ELLIPSIS:
691 value = impl.mController->IsTextElideEnabled();
694 case Toolkit::TextLabel::Property::LINE_WRAP_MODE:
696 value = impl.mController->GetLineWrapMode();
699 case Toolkit::TextLabel::Property::LINE_COUNT:
701 float width = label.GetProperty(Actor::Property::SIZE_WIDTH).Get<float>();
702 value = impl.mController->GetLineCount(width);
705 case Toolkit::DevelTextLabel::Property::TEXT_DIRECTION:
707 value = impl.mController->GetTextDirection();
710 case Toolkit::DevelTextLabel::Property::VERTICAL_LINE_ALIGNMENT:
712 value = impl.mController->GetVerticalLineAlignment();
715 case Toolkit::DevelTextLabel::Property::BACKGROUND:
717 GetBackgroundProperties(impl.mController, value, Text::EffectStyle::DEFAULT);
720 case Toolkit::DevelTextLabel::Property::IGNORE_SPACES_AFTER_TEXT:
722 value = impl.mController->IsIgnoreSpacesAfterText();
725 case Toolkit::DevelTextLabel::Property::MATCH_SYSTEM_LANGUAGE_DIRECTION:
727 value = impl.mController->GetMatchLayoutDirection() != DevelText::MatchLayoutDirection::CONTENTS;
730 case Toolkit::DevelTextLabel::Property::TEXT_FIT:
732 const bool enabled = impl.mController->IsTextFitEnabled();
733 const float minSize = impl.mController->GetTextFitMinSize();
734 const float maxSize = impl.mController->GetTextFitMaxSize();
735 const float stepSize = impl.mController->GetTextFitStepSize();
736 const float pointSize = impl.mController->GetTextFitPointSize();
739 map.Insert(TEXT_FIT_ENABLE_KEY, enabled);
740 map.Insert(TEXT_FIT_MIN_SIZE_KEY, minSize);
741 map.Insert(TEXT_FIT_MAX_SIZE_KEY, maxSize);
742 map.Insert(TEXT_FIT_STEP_SIZE_KEY, stepSize);
743 map.Insert(TEXT_FIT_FONT_SIZE_KEY, pointSize);
744 map.Insert(TEXT_FIT_FONT_SIZE_TYPE_KEY, "pointSize");
749 case Toolkit::DevelTextLabel::Property::MIN_LINE_SIZE:
751 value = impl.mController->GetDefaultLineSize();
754 case Toolkit::DevelTextLabel::Property::FONT_SIZE_SCALE:
756 value = impl.mController->GetFontSizeScale();
759 case Toolkit::DevelTextLabel::Property::ELLIPSIS_POSITION:
761 value = impl.mController->GetEllipsisPosition();
770 bool TextLabel::DoConnectSignal(BaseObject* object, ConnectionTrackerInterface* tracker, const std::string& signalName, FunctorDelegate* functor)
772 Dali::BaseHandle handle(object);
774 bool connected(true);
775 Toolkit::TextLabel label = Toolkit::TextLabel::DownCast(handle);
777 if(0 == strcmp(signalName.c_str(), SIGNAL_ANCHOR_CLICKED))
781 Internal::TextLabel& labelImpl(GetImpl(label));
782 labelImpl.AnchorClickedSignal().Connect(tracker, functor);
785 else if(0 == strcmp(signalName.c_str(), SIGNAL_TEXT_FIT_CHANGED))
789 Internal::TextLabel& labelImpl(GetImpl(label));
790 labelImpl.TextFitChangedSignal().Connect(tracker, functor);
795 // signalName does not match any signal
802 DevelTextLabel::AnchorClickedSignalType& TextLabel::AnchorClickedSignal()
804 return mAnchorClickedSignal;
807 DevelTextLabel::TextFitChangedSignalType& TextLabel::TextFitChangedSignal()
809 return mTextFitChangedSignal;
812 void TextLabel::OnInitialize()
816 Property::Map propertyMap;
817 propertyMap.Add(Toolkit::Visual::Property::TYPE, Toolkit::Visual::TEXT);
819 mVisual = Toolkit::VisualFactory::Get().CreateVisual(propertyMap);
820 DevelControl::RegisterVisual(*this, Toolkit::TextLabel::Property::TEXT, mVisual);
822 TextVisual::SetAnimatableTextColorProperty(mVisual, Toolkit::TextLabel::Property::TEXT_COLOR);
824 mController = TextVisual::GetController(mVisual);
825 DALI_ASSERT_DEBUG(mController && "Invalid Text Controller")
827 mController->SetControlInterface(this);
828 mController->SetAnchorControlInterface(this);
830 // Use height-for-width negotiation by default
831 self.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH);
832 self.SetResizePolicy(ResizePolicy::DIMENSION_DEPENDENCY, Dimension::HEIGHT);
834 // Enable highlightability
835 self.SetProperty(Toolkit::DevelControl::Property::ACCESSIBILITY_HIGHLIGHTABLE, true);
837 // Enable the text ellipsis.
838 mController->SetTextElideEnabled(true); // If false then text larger than control will overflow
840 // Sets layoutDirection value
841 Dali::Stage stage = Dali::Stage::GetCurrent();
842 Dali::LayoutDirection::Type layoutDirection = static_cast<Dali::LayoutDirection::Type>(stage.GetRootLayer().GetProperty(Dali::Actor::Property::LAYOUT_DIRECTION).Get<int>());
843 mController->SetLayoutDirection(layoutDirection);
845 self.LayoutDirectionChangedSignal().Connect(this, &TextLabel::OnLayoutDirectionChanged);
847 Layout::Engine& engine = mController->GetLayoutEngine();
848 engine.SetCursorWidth(0u); // Do not layout space for the cursor.
850 DevelControl::SetAccessibilityConstructor(self, [](Dali::Actor actor) {
851 return std::unique_ptr<Dali::Accessibility::Accessible>(
852 new AccessibleImpl(actor, Dali::Accessibility::Role::LABEL));
855 Accessibility::Bridge::EnabledSignal().Connect(this, &TextLabel::OnAccessibilityStatusChanged);
856 Accessibility::Bridge::DisabledSignal().Connect(this, &TextLabel::OnAccessibilityStatusChanged);
859 void TextLabel::OnStyleChange(Toolkit::StyleManager styleManager, StyleChange::Type change)
861 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "TextLabel::OnStyleChange\n");
865 case StyleChange::DEFAULT_FONT_CHANGE:
867 // Property system did not set the font so should update it.
868 const std::string& newFont = GetImpl(styleManager).GetDefaultFontFamily();
869 DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel::OnStyleChange StyleChange::DEFAULT_FONT_CHANGE newFont(%s)\n", newFont.c_str());
870 mController->UpdateAfterFontChange(newFont);
874 case StyleChange::DEFAULT_FONT_SIZE_CHANGE:
876 GetImpl(styleManager).ApplyThemeStyle(Toolkit::Control(GetOwner()));
880 case StyleChange::THEME_CHANGE:
882 // Nothing to do, let control base class handle this
887 // Up call to Control
888 Control::OnStyleChange(styleManager, change);
891 void TextLabel::OnTap(const TapGesture& gesture)
893 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "TextLabel::OnTap %p\n", mController.Get());
895 // Deliver the tap before the focus event to controller; this allows us to detect when focus is gained due to tap-gestures
897 padding = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
898 const Vector2& localPoint = gesture.GetLocalPoint();
899 mController->AnchorEvent(localPoint.x - padding.start, localPoint.y - padding.top);
902 void TextLabel::AnchorClicked(const std::string& href)
904 Dali::Toolkit::TextLabel handle(GetOwner());
905 mAnchorClickedSignal.Emit(handle, href.c_str(), href.length());
908 Vector3 TextLabel::GetNaturalSize()
911 padding = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
913 Vector3 naturalSize = mController->GetNaturalSize();
914 naturalSize.width += (padding.start + padding.end);
915 naturalSize.height += (padding.top + padding.bottom);
920 float TextLabel::GetHeightForWidth(float width)
923 padding = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
925 return mController->GetHeightForWidth(width) + padding.top + padding.bottom;
928 void TextLabel::OnPropertySet(Property::Index index, const Property::Value& propertyValue)
930 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "TextLabel::OnPropertySet index[%d]\n", index);
934 case Toolkit::TextLabel::Property::TEXT_COLOR:
936 const Vector4& textColor = propertyValue.Get<Vector4>();
937 if(mController->GetDefaultColor() != textColor)
939 mController->SetDefaultColor(textColor);
940 mTextUpdateNeeded = true;
944 case Toolkit::TextLabel::Property::TEXT:
945 case Toolkit::TextLabel::Property::ENABLE_MARKUP:
947 CommonTextUtils::SynchronizeTextAnchorsInParent(Self(), mController, mAnchorActors);
952 Control::OnPropertySet(index, propertyValue); // up call to control for non-handled properties
958 void TextLabel::OnRelayout(const Vector2& size, RelayoutContainer& container)
960 DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel::OnRelayout\n");
965 padding = self.GetProperty<Extents>(Toolkit::Control::Property::PADDING);
967 Vector2 contentSize(size.x - (padding.start + padding.end), size.y - (padding.top + padding.bottom));
969 if(mController->IsTextFitEnabled())
971 mController->FitPointSizeforLayout(contentSize);
972 mController->SetTextFitContentSize(contentSize);
975 // Support Right-To-Left
976 Dali::LayoutDirection::Type layoutDirection = mController->GetLayoutDirection(self);
978 const Text::Controller::UpdateTextType updateTextType = mController->Relayout(contentSize, layoutDirection);
980 if((Text::Controller::NONE_UPDATED != (Text::Controller::MODEL_UPDATED & updateTextType)) || mTextUpdateNeeded)
982 DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel::OnRelayout IsAutoScrollEnabled[%s] [%p]\n", (mController->IsAutoScrollEnabled()) ? "true" : "false", this);
985 TextVisual::EnableRendererUpdate(mVisual);
987 // Support Right-To-Left of padding
988 if(Dali::LayoutDirection::RIGHT_TO_LEFT == layoutDirection)
990 std::swap(padding.start, padding.end);
993 // Calculate the size of the visual that can fit the text
994 Size layoutSize = mController->GetTextModel()->GetLayoutSize();
995 layoutSize.x = contentSize.x;
997 const Vector2& shadowOffset = mController->GetTextModel()->GetShadowOffset();
998 if(shadowOffset.y > Math::MACHINE_EPSILON_1)
1000 layoutSize.y += shadowOffset.y;
1003 float outlineWidth = mController->GetTextModel()->GetOutlineWidth();
1004 layoutSize.y += outlineWidth * 2.0f;
1005 layoutSize.y = std::min(layoutSize.y, contentSize.y);
1007 // Calculate the offset for vertical alignment only, as the layout engine will do the horizontal alignment.
1008 Vector2 alignmentOffset;
1009 alignmentOffset.x = 0.0f;
1010 alignmentOffset.y = (contentSize.y - layoutSize.y) * VERTICAL_ALIGNMENT_TABLE[mController->GetVerticalAlignment()];
1012 Property::Map visualTransform;
1013 visualTransform.Add(Toolkit::Visual::Transform::Property::SIZE, layoutSize)
1014 .Add(Toolkit::Visual::Transform::Property::SIZE_POLICY, Vector2(Toolkit::Visual::Transform::Policy::ABSOLUTE, Toolkit::Visual::Transform::Policy::ABSOLUTE))
1015 .Add(Toolkit::Visual::Transform::Property::OFFSET, Vector2(padding.start, padding.top) + alignmentOffset)
1016 .Add(Toolkit::Visual::Transform::Property::OFFSET_POLICY, Vector2(Toolkit::Visual::Transform::Policy::ABSOLUTE, Toolkit::Visual::Transform::Policy::ABSOLUTE))
1017 .Add(Toolkit::Visual::Transform::Property::ORIGIN, Toolkit::Align::TOP_BEGIN)
1018 .Add(Toolkit::Visual::Transform::Property::ANCHOR_POINT, Toolkit::Align::TOP_BEGIN);
1019 mVisual.SetTransformAndSize(visualTransform, size);
1021 if(mController->IsAutoScrollEnabled())
1023 SetUpAutoScrolling();
1026 mTextUpdateNeeded = false;
1029 if(mController->IsTextFitChanged())
1031 EmitTextFitChangedSignal();
1032 mController->SetTextFitChanged(false);
1036 void TextLabel::RequestTextRelayout()
1039 // Signal that a Relayout may be needed
1042 void TextLabel::SetUpAutoScrolling()
1044 const Size& controlSize = mController->GetView().GetControlSize();
1045 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.
1046 const Text::CharacterDirection direction = mController->GetAutoScrollDirection();
1048 DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel::SetUpAutoScrolling textNaturalSize[%f,%f] controlSize[%f,%f]\n", textNaturalSize.x, textNaturalSize.y, controlSize.x, controlSize.y);
1052 DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel::SetUpAutoScrolling Creating default TextScoller\n");
1054 // If speed, loopCount or gap not set via property system then will need to create a TextScroller with defaults
1055 mTextScroller = Text::TextScroller::New(*this);
1058 // Calculate the actual gap before scrolling wraps.
1059 int textPadding = std::max(controlSize.x - textNaturalSize.x, 0.0f);
1060 float wrapGap = std::max(mTextScroller->GetGap(), textPadding);
1061 Vector2 textureSize = textNaturalSize + Vector2(wrapGap, 0.0f); // Add the gap as a part of the texture
1063 // Create a texture of the text for scrolling
1064 Size verifiedSize = textureSize;
1065 const int maxTextureSize = Dali::GetMaxTextureSize();
1067 //if the texture size width exceed maxTextureSize, modify the visual model size and enabled the ellipsis
1068 bool actualellipsis = mController->IsTextElideEnabled();
1069 if(verifiedSize.width > maxTextureSize)
1071 verifiedSize.width = maxTextureSize;
1072 if(textNaturalSize.width > maxTextureSize)
1074 mController->SetTextElideEnabled(true);
1076 GetHeightForWidth(maxTextureSize);
1077 wrapGap = std::max(maxTextureSize - textNaturalSize.width, 0.0f);
1080 Text::TypesetterPtr typesetter = Text::Typesetter::New(mController->GetTextModel());
1082 PixelData data = typesetter->Render(verifiedSize, mController->GetTextDirection(), Text::Typesetter::RENDER_TEXT_AND_STYLES, true, Pixel::RGBA8888); // ignore the horizontal alignment
1083 Texture texture = Texture::New(Dali::TextureType::TEXTURE_2D,
1084 data.GetPixelFormat(),
1087 texture.Upload(data);
1089 TextureSet textureSet = TextureSet::New();
1090 textureSet.SetTexture(0u, texture);
1092 // Filter mode needs to be set to linear to produce better quality while scaling.
1093 Sampler sampler = Sampler::New();
1094 sampler.SetFilterMode(FilterMode::LINEAR, FilterMode::LINEAR);
1095 sampler.SetWrapMode(Dali::WrapMode::DEFAULT, Dali::WrapMode::REPEAT, Dali::WrapMode::DEFAULT); // Wrap the texture in the x direction
1096 textureSet.SetSampler(0u, sampler);
1098 // Set parameters for scrolling
1099 Renderer renderer = static_cast<Internal::Visual::Base&>(GetImplementation(mVisual)).GetRenderer();
1100 mTextScroller->SetParameters(Self(), renderer, textureSet, controlSize, verifiedSize, wrapGap, direction, mController->GetHorizontalAlignment(), mController->GetVerticalAlignment());
1101 mController->SetTextElideEnabled(actualellipsis);
1104 void TextLabel::ScrollingFinished()
1106 // Pure Virtual from TextScroller Interface
1107 DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel::ScrollingFinished\n");
1108 mController->SetAutoScrollEnabled(false);
1109 RequestTextRelayout();
1112 void TextLabel::OnLayoutDirectionChanged(Actor actor, LayoutDirection::Type type)
1114 mController->ChangedLayoutDirection();
1117 void TextLabel::EmitTextFitChangedSignal()
1119 Dali::Toolkit::TextLabel handle(GetOwner());
1120 mTextFitChangedSignal.Emit(handle);
1123 void TextLabel::OnAccessibilityStatusChanged()
1125 CommonTextUtils::SynchronizeTextAnchorsInParent(Self(), mController, mAnchorActors);
1128 TextLabel::TextLabel()
1129 : Control(ControlBehaviour(CONTROL_BEHAVIOUR_DEFAULT)),
1130 mRenderingBackend(DEFAULT_RENDERING_BACKEND),
1131 mTextUpdateNeeded(false)
1135 TextLabel::~TextLabel()
1139 Vector<Vector2> TextLabel::GetTextSize(const uint32_t startIndex, const uint32_t endIndex) const
1141 return mController->GetTextSize(startIndex, endIndex);
1144 Vector<Vector2> TextLabel::GetTextPosition(const uint32_t startIndex, const uint32_t endIndex) const
1146 return mController->GetTextPosition(startIndex, endIndex);
1149 std::string TextLabel::AccessibleImpl::GetNameRaw() const
1151 auto self = Toolkit::TextLabel::DownCast(Self());
1152 return self.GetProperty(Toolkit::TextLabel::Property::TEXT).Get<std::string>();
1155 Property::Index TextLabel::AccessibleImpl::GetNamePropertyIndex()
1157 return Toolkit::TextLabel::Property::TEXT;
1160 std::string TextLabel::AccessibleImpl::GetText(size_t startOffset, size_t endOffset) const
1162 if(endOffset <= startOffset)
1167 auto self = Toolkit::TextLabel::DownCast(Self());
1168 auto text = self.GetProperty(Toolkit::TextLabel::Property::TEXT).Get<std::string>();
1170 if(startOffset > text.size() || endOffset > text.size())
1175 return text.substr(startOffset, endOffset - startOffset);
1178 size_t TextLabel::AccessibleImpl::GetCharacterCount() const
1180 auto self = Toolkit::TextLabel::DownCast(Self());
1181 auto text = self.GetProperty(Toolkit::TextLabel::Property::TEXT).Get<std::string>();
1186 size_t TextLabel::AccessibleImpl::GetCursorOffset() const
1191 bool TextLabel::AccessibleImpl::SetCursorOffset(size_t offset)
1196 Dali::Accessibility::Range TextLabel::AccessibleImpl::GetTextAtOffset(size_t offset, Dali::Accessibility::TextBoundary boundary) const
1198 auto self = Toolkit::TextLabel::DownCast(Self());
1199 auto text = self.GetProperty(Toolkit::TextLabel::Property::TEXT).Get<std::string>();
1200 auto textSize = text.size();
1202 auto range = Dali::Accessibility::Range{};
1206 case Dali::Accessibility::TextBoundary::CHARACTER:
1208 if(offset < textSize)
1210 range.content = text[offset];
1211 range.startOffset = offset;
1212 range.endOffset = offset + 1;
1216 case Dali::Accessibility::TextBoundary::WORD:
1217 case Dali::Accessibility::TextBoundary::LINE:
1219 auto textString = text.c_str();
1220 auto breaks = std::vector<char>(textSize, 0);
1222 if(boundary == Dali::Accessibility::TextBoundary::WORD)
1224 Accessibility::Accessible::FindWordSeparationsUtf8(reinterpret_cast<const utf8_t*>(textString), textSize, "", breaks.data());
1228 Accessibility::Accessible::FindLineSeparationsUtf8(reinterpret_cast<const utf8_t*>(textString), textSize, "", breaks.data());
1233 while(index < textSize && counter <= offset)
1238 while(breaks[index])
1246 if(boundary == Dali::Accessibility::TextBoundary::WORD)
1250 if(boundary == Dali::Accessibility::TextBoundary::LINE)
1256 if((counter > 0) && ((counter - 1) == offset))
1258 range.content = text.substr(start, index - start + 1);
1259 range.startOffset = start;
1260 range.endOffset = index + 1;
1263 if(boundary == Dali::Accessibility::TextBoundary::LINE)
1270 case Dali::Accessibility::TextBoundary::SENTENCE:
1272 /* not supported by default */
1275 case Dali::Accessibility::TextBoundary::PARAGRAPH:
1277 /* Paragraph is not supported by libunibreak library */
1287 Dali::Accessibility::Range TextLabel::AccessibleImpl::GetRangeOfSelection(size_t selectionIndex) const
1289 // Since DALi supports only one selection indexes higher than 0 are ignored
1290 if(selectionIndex > 0)
1295 auto self = Toolkit::TextLabel::DownCast(Self());
1296 auto controller = Dali::Toolkit::GetImpl(self).GetTextController();
1297 std::string value{};
1298 controller->RetrieveSelection(value);
1299 auto indices = controller->GetSelectionIndexes();
1301 return {static_cast<size_t>(indices.first), static_cast<size_t>(indices.second), value};
1304 bool TextLabel::AccessibleImpl::RemoveSelection(size_t selectionIndex)
1306 // Since DALi supports only one selection indexes higher than 0 are ignored
1307 if(selectionIndex > 0)
1312 auto self = Toolkit::TextLabel::DownCast(Self());
1313 Dali::Toolkit::GetImpl(self).GetTextController()->SetSelection(0, 0);
1317 bool TextLabel::AccessibleImpl::SetRangeOfSelection(size_t selectionIndex, size_t startOffset, size_t endOffset)
1319 // Since DALi supports only one selection indexes higher than 0 are ignored
1320 if(selectionIndex > 0)
1325 auto self = Toolkit::TextLabel::DownCast(Self());
1326 Dali::Toolkit::GetImpl(self).GetTextController()->SetSelection(startOffset, endOffset);
1330 int32_t TextLabel::AccessibleImpl::GetLinkCount() const
1332 auto self = Toolkit::TextLabel::DownCast(Self());
1333 return Dali::Toolkit::GetImpl(self).mAnchorActors.size();
1336 Accessibility::Hyperlink* TextLabel::AccessibleImpl::GetLink(int32_t linkIndex) const
1338 if(linkIndex < 0 || linkIndex >= GetLinkCount())
1342 auto self = Toolkit::TextLabel::DownCast(Self());
1343 auto anchorActor = Dali::Toolkit::GetImpl(self).mAnchorActors[linkIndex];
1344 return dynamic_cast<Accessibility::Hyperlink*>(Dali::Accessibility::Accessible::Get(anchorActor));
1347 int32_t TextLabel::AccessibleImpl::GetLinkIndex(int32_t characterOffset) const
1349 auto self = Toolkit::TextLabel::DownCast(Self());
1350 auto controller = Dali::Toolkit::GetImpl(self).GetTextController();
1351 return controller->GetAnchorIndex(static_cast<size_t>(characterOffset));
1354 } // namespace Internal
1356 } // namespace Toolkit