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 )
143 DALI_ANIMATABLE_PROPERTY_REGISTRATION_WITH_DEFAULT(Toolkit, TextLabel, "textColor", Color::BLACK, TEXT_COLOR )
144 DALI_ANIMATABLE_PROPERTY_COMPONENT_REGISTRATION(Toolkit, TextLabel, "textColorRed", TEXT_COLOR_RED, TEXT_COLOR, 0)
145 DALI_ANIMATABLE_PROPERTY_COMPONENT_REGISTRATION(Toolkit, TextLabel, "textColorGreen", TEXT_COLOR_GREEN, TEXT_COLOR, 1)
146 DALI_ANIMATABLE_PROPERTY_COMPONENT_REGISTRATION(Toolkit, TextLabel, "textColorBlue", TEXT_COLOR_BLUE, TEXT_COLOR, 2)
147 DALI_ANIMATABLE_PROPERTY_COMPONENT_REGISTRATION(Toolkit, TextLabel, "textColorAlpha", TEXT_COLOR_ALPHA, TEXT_COLOR, 3)
149 DALI_SIGNAL_REGISTRATION(Toolkit, TextLabel, "anchorClicked", SIGNAL_ANCHOR_CLICKED)
150 DALI_SIGNAL_REGISTRATION(Toolkit, TextLabel, "textFitChanged", SIGNAL_TEXT_FIT_CHANGED)
152 DALI_TYPE_REGISTRATION_END()
155 /// Parses the property map for the TEXT_FIT property
156 void ParseTextFitProperty(Text::ControllerPtr& controller, const Property::Map* propertiesMap)
158 if(propertiesMap && !propertiesMap->Empty())
160 bool enabled = false;
163 float stepSize = 0.f;
164 bool isMinSizeSet = false, isMaxSizeSet = false, isStepSizeSet = false;
165 Controller::FontSizeType type = Controller::FontSizeType::POINT_SIZE;
167 const unsigned int numberOfItems = propertiesMap->Count();
169 // Parses and applies
170 for(unsigned int index = 0u; index < numberOfItems; ++index)
172 const KeyValuePair& valueGet = propertiesMap->GetKeyValue(index);
174 if((Controller::TextFitInfo::Property::TEXT_FIT_ENABLE == valueGet.first.indexKey) || (TEXT_FIT_ENABLE_KEY == valueGet.first.stringKey))
177 enabled = valueGet.second.Get<bool>();
179 else if((Controller::TextFitInfo::Property::TEXT_FIT_MIN_SIZE == valueGet.first.indexKey) || (TEXT_FIT_MIN_SIZE_KEY == valueGet.first.stringKey))
182 minSize = valueGet.second.Get<float>();
185 else if((Controller::TextFitInfo::Property::TEXT_FIT_MAX_SIZE == valueGet.first.indexKey) || (TEXT_FIT_MAX_SIZE_KEY == valueGet.first.stringKey))
188 maxSize = valueGet.second.Get<float>();
191 else if((Controller::TextFitInfo::Property::TEXT_FIT_STEP_SIZE == valueGet.first.indexKey) || (TEXT_FIT_STEP_SIZE_KEY == valueGet.first.stringKey))
194 stepSize = valueGet.second.Get<float>();
195 isStepSizeSet = true;
197 else if((Controller::TextFitInfo::Property::TEXT_FIT_FONT_SIZE_TYPE == valueGet.first.indexKey) || (TEXT_FIT_FONT_SIZE_TYPE_KEY == valueGet.first.stringKey))
199 if("pixelSize" == valueGet.second.Get<std::string>())
201 type = Controller::FontSizeType::PIXEL_SIZE;
206 controller->SetTextFitEnabled(enabled);
209 controller->SetTextFitMinSize(minSize, type);
213 controller->SetTextFitMaxSize(maxSize, type);
217 controller->SetTextFitStepSize(stepSize, type);
224 Toolkit::TextLabel TextLabel::New()
226 // Create the implementation, temporarily owned by this handle on stack
227 IntrusivePtr<TextLabel> impl = new TextLabel();
229 // Pass ownership to CustomActor handle
230 Toolkit::TextLabel handle(*impl);
232 // Second-phase init of the implementation
233 // This can only be done after the CustomActor connection has been made...
239 void TextLabel::SetProperty(BaseObject* object, Property::Index index, const Property::Value& value)
241 Toolkit::TextLabel label = Toolkit::TextLabel::DownCast(Dali::BaseHandle(object));
245 TextLabel& impl(GetImpl(label));
246 DALI_ASSERT_ALWAYS(impl.mController && "No text contoller");
250 case Toolkit::DevelTextLabel::Property::RENDERING_BACKEND:
252 int backend = value.Get<int>();
254 #ifndef ENABLE_VECTOR_BASED_TEXT_RENDERING
255 if(DevelText::RENDERING_VECTOR_BASED == backend)
257 backend = TextAbstraction::BITMAP_GLYPH; // Fallback to bitmap-based rendering
260 if(impl.mRenderingBackend != backend)
262 impl.mRenderingBackend = backend;
263 impl.mTextUpdateNeeded = true;
265 // When using the vector-based rendering, the size of the GLyphs are different
266 TextAbstraction::GlyphType glyphType = (DevelText::RENDERING_VECTOR_BASED == impl.mRenderingBackend) ? TextAbstraction::VECTOR_GLYPH : TextAbstraction::BITMAP_GLYPH;
267 impl.mController->SetGlyphType(glyphType);
271 case Toolkit::TextLabel::Property::TEXT:
273 impl.mController->SetText(value.Get<std::string>());
275 if(impl.mController->HasAnchors())
277 // Forward input events to controller
278 impl.EnableGestureDetection(static_cast<GestureType::Value>(GestureType::TAP));
282 impl.DisableGestureDetection(static_cast<GestureType::Value>(GestureType::TAP));
287 case Toolkit::TextLabel::Property::FONT_FAMILY:
289 const std::string& fontFamily = value.Get<std::string>();
291 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "TextLabel::SetProperty Property::FONT_FAMILY newFont(%s)\n", fontFamily.c_str());
292 impl.mController->SetDefaultFontFamily(fontFamily);
295 case Toolkit::TextLabel::Property::FONT_STYLE:
297 SetFontStyleProperty(impl.mController, value, Text::FontStyle::DEFAULT);
300 case Toolkit::TextLabel::Property::POINT_SIZE:
302 const float pointSize = value.Get<float>();
304 if(!Equals(impl.mController->GetDefaultFontSize(Text::Controller::POINT_SIZE), pointSize))
306 impl.mController->SetDefaultFontSize(pointSize, Text::Controller::POINT_SIZE);
310 case Toolkit::TextLabel::Property::MULTI_LINE:
312 impl.mController->SetMultiLineEnabled(value.Get<bool>());
315 case Toolkit::TextLabel::Property::HORIZONTAL_ALIGNMENT:
317 Text::HorizontalAlignment::Type alignment(static_cast<Text::HorizontalAlignment::Type>(-1)); // Set to invalid value to ensure a valid mode does get set
318 if(Text::GetHorizontalAlignmentEnumeration(value, alignment))
320 impl.mController->SetHorizontalAlignment(alignment);
324 case Toolkit::TextLabel::Property::VERTICAL_ALIGNMENT:
326 Toolkit::Text::VerticalAlignment::Type alignment(static_cast<Text::VerticalAlignment::Type>(-1)); // Set to invalid value to ensure a valid mode does get set
327 if(Text::GetVerticalAlignmentEnumeration(value, alignment))
329 impl.mController->SetVerticalAlignment(alignment);
333 case Toolkit::TextLabel::Property::ENABLE_MARKUP:
335 const bool enableMarkup = value.Get<bool>();
336 impl.mController->SetMarkupProcessorEnabled(enableMarkup);
338 if(impl.mController->HasAnchors())
340 // Forward input events to controller
341 impl.EnableGestureDetection(static_cast<GestureType::Value>(GestureType::TAP));
345 impl.DisableGestureDetection(static_cast<GestureType::Value>(GestureType::TAP));
349 case Toolkit::TextLabel::Property::ENABLE_AUTO_SCROLL:
351 const bool enableAutoScroll = value.Get<bool>();
352 // If request to auto scroll is the same as current state then do nothing.
353 if(enableAutoScroll != impl.mController->IsAutoScrollEnabled())
355 // If request is disable (false) and auto scrolling is enabled then need to stop it
356 if(enableAutoScroll == false)
358 if(impl.mTextScroller)
360 impl.mTextScroller->StopScrolling();
363 // If request is enable (true) then start autoscroll as not already running
366 impl.mController->SetAutoScrollEnabled(enableAutoScroll);
371 case Toolkit::TextLabel::Property::AUTO_SCROLL_STOP_MODE:
373 Text::TextScrollerPtr textScroller = impl.GetTextScroller();
374 Toolkit::TextLabel::AutoScrollStopMode::Type stopMode = textScroller->GetStopMode();
375 if(Scripting::GetEnumerationProperty<Toolkit::TextLabel::AutoScrollStopMode::Type>(value,
376 AUTO_SCROLL_STOP_MODE_TABLE,
377 AUTO_SCROLL_STOP_MODE_TABLE_COUNT,
380 textScroller->SetStopMode(stopMode);
384 case Toolkit::TextLabel::Property::AUTO_SCROLL_SPEED:
386 impl.GetTextScroller()->SetSpeed(value.Get<int>());
389 case Toolkit::TextLabel::Property::AUTO_SCROLL_LOOP_COUNT:
391 impl.GetTextScroller()->SetLoopCount(value.Get<int>());
394 case Toolkit::TextLabel::Property::AUTO_SCROLL_LOOP_DELAY:
396 impl.GetTextScroller()->SetLoopDelay(value.Get<float>());
399 case Toolkit::TextLabel::Property::AUTO_SCROLL_GAP:
401 impl.GetTextScroller()->SetGap(value.Get<float>());
404 case Toolkit::TextLabel::Property::LINE_SPACING:
406 const float lineSpacing = value.Get<float>();
407 impl.mTextUpdateNeeded = impl.mController->SetDefaultLineSpacing(lineSpacing) || impl.mTextUpdateNeeded;
410 case Toolkit::TextLabel::Property::UNDERLINE:
412 impl.mTextUpdateNeeded = SetUnderlineProperties(impl.mController, value, Text::EffectStyle::DEFAULT) || impl.mTextUpdateNeeded;
415 case Toolkit::TextLabel::Property::SHADOW:
417 impl.mTextUpdateNeeded = SetShadowProperties(impl.mController, value, Text::EffectStyle::DEFAULT) || impl.mTextUpdateNeeded;
420 case Toolkit::TextLabel::Property::EMBOSS:
422 impl.mTextUpdateNeeded = SetEmbossProperties(impl.mController, value, Text::EffectStyle::DEFAULT) || impl.mTextUpdateNeeded;
425 case Toolkit::TextLabel::Property::OUTLINE:
427 impl.mTextUpdateNeeded = SetOutlineProperties(impl.mController, value, Text::EffectStyle::DEFAULT) || impl.mTextUpdateNeeded;
430 case Toolkit::TextLabel::Property::PIXEL_SIZE:
432 const float pixelSize = value.Get<float>();
433 DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel %p PIXEL_SIZE %f\n", impl.mController.Get(), pixelSize);
435 if(!Equals(impl.mController->GetDefaultFontSize(Text::Controller::PIXEL_SIZE), pixelSize))
437 impl.mController->SetDefaultFontSize(pixelSize, Text::Controller::PIXEL_SIZE);
441 case Toolkit::TextLabel::Property::ELLIPSIS:
443 const bool ellipsis = value.Get<bool>();
444 DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel %p ELLIPSIS %d\n", impl.mController.Get(), ellipsis);
446 impl.mController->SetTextElideEnabled(ellipsis);
449 case Toolkit::TextLabel::Property::LINE_WRAP_MODE:
451 Text::LineWrap::Mode lineWrapMode(static_cast<Text::LineWrap::Mode>(-1)); // Set to invalid value to ensure a valid mode does get set
452 if(GetLineWrapModeEnumeration(value, lineWrapMode))
454 DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel %p LineWrap::MODE %d\n", impl.mController.Get(), lineWrapMode);
455 impl.mController->SetLineWrapMode(lineWrapMode);
459 case Toolkit::DevelTextLabel::Property::VERTICAL_LINE_ALIGNMENT:
461 if(impl.mController->GetTextModel())
463 DevelText::VerticalLineAlignment::Type alignment = static_cast<DevelText::VerticalLineAlignment::Type>(value.Get<int>());
465 impl.mController->SetVerticalLineAlignment(alignment);
467 // Property doesn't affect the layout, only Visual must be updated
468 TextVisual::EnableRendererUpdate(impl.mVisual);
470 // No need to trigger full re-layout. Instead call UpdateRenderer() directly
471 TextVisual::UpdateRenderer(impl.mVisual);
475 case Toolkit::DevelTextLabel::Property::BACKGROUND:
477 impl.mTextUpdateNeeded = SetBackgroundProperties(impl.mController, value, Text::EffectStyle::DEFAULT) || impl.mTextUpdateNeeded;
480 case Toolkit::DevelTextLabel::Property::IGNORE_SPACES_AFTER_TEXT:
482 impl.mController->SetIgnoreSpacesAfterText(value.Get<bool>());
485 case Toolkit::DevelTextLabel::Property::MATCH_SYSTEM_LANGUAGE_DIRECTION:
487 impl.mController->SetMatchLayoutDirection(value.Get<bool>() ? DevelText::MatchLayoutDirection::LOCALE : DevelText::MatchLayoutDirection::CONTENTS);
490 case Toolkit::DevelTextLabel::Property::TEXT_FIT:
492 ParseTextFitProperty(impl.mController, value.GetMap());
493 impl.mController->SetTextFitChanged(true);
496 case Toolkit::DevelTextLabel::Property::MIN_LINE_SIZE:
498 const float lineSize = value.Get<float>();
499 impl.mTextUpdateNeeded = impl.mController->SetDefaultLineSize(lineSize) || impl.mTextUpdateNeeded;
502 case Toolkit::DevelTextLabel::Property::FONT_SIZE_SCALE:
504 const float scale = value.Get<float>();
505 DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel %p FONT_SIZE_SCALE %f\n", impl.mController.Get(), scale);
507 if(!Equals(impl.mController->GetFontSizeScale(), scale))
509 impl.mController->SetFontSizeScale(scale);
513 case Toolkit::DevelTextLabel::Property::ENABLE_FONT_SIZE_SCALE:
515 const bool enableFontSizeScale = value.Get<bool>();
516 if(!Equals(impl.mController->IsFontSizeScaleEnabled(), enableFontSizeScale))
518 impl.mController->SetFontSizeScaleEnabled(enableFontSizeScale);
522 case Toolkit::DevelTextLabel::Property::ELLIPSIS_POSITION:
524 DevelText::EllipsisPosition::Type ellipsisPositionType(static_cast<DevelText::EllipsisPosition::Type>(-1)); // Set to invalid value to ensure a valid mode does get set
525 if(GetEllipsisPositionTypeEnumeration(value, ellipsisPositionType))
527 DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel %p EllipsisPosition::Type %d\n", impl.mController.Get(), ellipsisPositionType);
528 impl.mController->SetEllipsisPosition(ellipsisPositionType);
532 case Toolkit::DevelTextLabel::Property::STRIKETHROUGH:
534 impl.mTextUpdateNeeded = SetStrikethroughProperties(impl.mController, value, Text::EffectStyle::DEFAULT) || impl.mTextUpdateNeeded;
539 // Request relayout when text update is needed. It's necessary to call it
540 // as changing the property not via UI interaction brings no effect if only
541 // the mTextUpdateNeeded is changed.
542 if(impl.mTextUpdateNeeded)
544 // need to request relayout as size of text may have changed
545 impl.RequestTextRelayout();
550 Text::ControllerPtr TextLabel::GetTextController()
555 Property::Value TextLabel::GetProperty(BaseObject* object, Property::Index index)
557 Property::Value value;
559 Toolkit::TextLabel label = Toolkit::TextLabel::DownCast(Dali::BaseHandle(object));
563 TextLabel& impl(GetImpl(label));
564 DALI_ASSERT_DEBUG(impl.mController && "No text contoller");
568 case Toolkit::DevelTextLabel::Property::RENDERING_BACKEND:
570 value = impl.mRenderingBackend;
573 case Toolkit::TextLabel::Property::TEXT:
576 impl.mController->GetText(text);
580 case Toolkit::TextLabel::Property::FONT_FAMILY:
582 value = impl.mController->GetDefaultFontFamily();
585 case Toolkit::TextLabel::Property::FONT_STYLE:
587 GetFontStyleProperty(impl.mController, value, Text::FontStyle::DEFAULT);
590 case Toolkit::TextLabel::Property::POINT_SIZE:
592 value = impl.mController->GetDefaultFontSize(Text::Controller::POINT_SIZE);
595 case Toolkit::TextLabel::Property::MULTI_LINE:
597 value = impl.mController->IsMultiLineEnabled();
600 case Toolkit::TextLabel::Property::HORIZONTAL_ALIGNMENT:
602 const char* name = Text::GetHorizontalAlignmentString(impl.mController->GetHorizontalAlignment());
606 value = std::string(name);
610 case Toolkit::TextLabel::Property::VERTICAL_ALIGNMENT:
612 const char* name = Text::GetVerticalAlignmentString(impl.mController->GetVerticalAlignment());
615 value = std::string(name);
619 case Toolkit::TextLabel::Property::ENABLE_MARKUP:
621 value = impl.mController->IsMarkupProcessorEnabled();
624 case Toolkit::TextLabel::Property::ENABLE_AUTO_SCROLL:
626 value = impl.mController->IsAutoScrollEnabled();
629 case Toolkit::TextLabel::Property::AUTO_SCROLL_STOP_MODE:
631 if(impl.mTextScroller)
633 const char* mode = Scripting::GetEnumerationName<Toolkit::TextLabel::AutoScrollStopMode::Type>(impl.mTextScroller->GetStopMode(),
634 AUTO_SCROLL_STOP_MODE_TABLE,
635 AUTO_SCROLL_STOP_MODE_TABLE_COUNT);
638 value = std::string(mode);
643 case Toolkit::TextLabel::Property::AUTO_SCROLL_SPEED:
645 if(impl.mTextScroller)
647 value = impl.mTextScroller->GetSpeed();
651 case Toolkit::TextLabel::Property::AUTO_SCROLL_LOOP_COUNT:
653 if(impl.mTextScroller)
655 value = impl.mTextScroller->GetLoopCount();
659 case Toolkit::TextLabel::Property::AUTO_SCROLL_LOOP_DELAY:
661 if(impl.mTextScroller)
663 value = impl.mTextScroller->GetLoopDelay();
667 case Toolkit::TextLabel::Property::AUTO_SCROLL_GAP:
669 if(impl.mTextScroller)
671 value = impl.mTextScroller->GetGap();
675 case Toolkit::TextLabel::Property::LINE_SPACING:
677 value = impl.mController->GetDefaultLineSpacing();
680 case Toolkit::TextLabel::Property::UNDERLINE:
682 GetUnderlineProperties(impl.mController, value, Text::EffectStyle::DEFAULT);
685 case Toolkit::TextLabel::Property::SHADOW:
687 GetShadowProperties(impl.mController, value, Text::EffectStyle::DEFAULT);
690 case Toolkit::TextLabel::Property::EMBOSS:
692 GetEmbossProperties(impl.mController, value, Text::EffectStyle::DEFAULT);
695 case Toolkit::TextLabel::Property::OUTLINE:
697 GetOutlineProperties(impl.mController, value, Text::EffectStyle::DEFAULT);
700 case Toolkit::TextLabel::Property::PIXEL_SIZE:
702 value = impl.mController->GetDefaultFontSize(Text::Controller::PIXEL_SIZE);
705 case Toolkit::TextLabel::Property::ELLIPSIS:
707 value = impl.mController->IsTextElideEnabled();
710 case Toolkit::TextLabel::Property::LINE_WRAP_MODE:
712 value = impl.mController->GetLineWrapMode();
715 case Toolkit::TextLabel::Property::LINE_COUNT:
717 float width = label.GetProperty(Actor::Property::SIZE_WIDTH).Get<float>();
718 value = impl.mController->GetLineCount(width);
721 case Toolkit::DevelTextLabel::Property::TEXT_DIRECTION:
723 value = impl.mController->GetTextDirection();
726 case Toolkit::DevelTextLabel::Property::VERTICAL_LINE_ALIGNMENT:
728 value = impl.mController->GetVerticalLineAlignment();
731 case Toolkit::DevelTextLabel::Property::BACKGROUND:
733 GetBackgroundProperties(impl.mController, value, Text::EffectStyle::DEFAULT);
736 case Toolkit::DevelTextLabel::Property::IGNORE_SPACES_AFTER_TEXT:
738 value = impl.mController->IsIgnoreSpacesAfterText();
741 case Toolkit::DevelTextLabel::Property::MATCH_SYSTEM_LANGUAGE_DIRECTION:
743 value = impl.mController->GetMatchLayoutDirection() != DevelText::MatchLayoutDirection::CONTENTS;
746 case Toolkit::DevelTextLabel::Property::TEXT_FIT:
748 const bool enabled = impl.mController->IsTextFitEnabled();
749 const float minSize = impl.mController->GetTextFitMinSize();
750 const float maxSize = impl.mController->GetTextFitMaxSize();
751 const float stepSize = impl.mController->GetTextFitStepSize();
752 const float pointSize = impl.mController->GetTextFitPointSize();
755 map.Insert(TEXT_FIT_ENABLE_KEY, enabled);
756 map.Insert(TEXT_FIT_MIN_SIZE_KEY, minSize);
757 map.Insert(TEXT_FIT_MAX_SIZE_KEY, maxSize);
758 map.Insert(TEXT_FIT_STEP_SIZE_KEY, stepSize);
759 map.Insert(TEXT_FIT_FONT_SIZE_KEY, pointSize);
760 map.Insert(TEXT_FIT_FONT_SIZE_TYPE_KEY, "pointSize");
765 case Toolkit::DevelTextLabel::Property::MIN_LINE_SIZE:
767 value = impl.mController->GetDefaultLineSize();
770 case Toolkit::DevelTextLabel::Property::FONT_SIZE_SCALE:
772 value = impl.mController->GetFontSizeScale();
775 case Toolkit::DevelTextLabel::Property::ENABLE_FONT_SIZE_SCALE:
777 value = impl.mController->IsFontSizeScaleEnabled();
780 case Toolkit::DevelTextLabel::Property::ELLIPSIS_POSITION:
782 value = impl.mController->GetEllipsisPosition();
785 case Toolkit::DevelTextLabel::Property::STRIKETHROUGH:
787 GetStrikethroughProperties(impl.mController, value, Text::EffectStyle::DEFAULT);
796 bool TextLabel::DoConnectSignal(BaseObject* object, ConnectionTrackerInterface* tracker, const std::string& signalName, FunctorDelegate* functor)
798 Dali::BaseHandle handle(object);
800 bool connected(true);
801 Toolkit::TextLabel label = Toolkit::TextLabel::DownCast(handle);
803 if(0 == strcmp(signalName.c_str(), SIGNAL_ANCHOR_CLICKED))
807 Internal::TextLabel& labelImpl(GetImpl(label));
808 labelImpl.AnchorClickedSignal().Connect(tracker, functor);
811 else if(0 == strcmp(signalName.c_str(), SIGNAL_TEXT_FIT_CHANGED))
815 Internal::TextLabel& labelImpl(GetImpl(label));
816 labelImpl.TextFitChangedSignal().Connect(tracker, functor);
821 // signalName does not match any signal
828 DevelTextLabel::AnchorClickedSignalType& TextLabel::AnchorClickedSignal()
830 return mAnchorClickedSignal;
833 DevelTextLabel::TextFitChangedSignalType& TextLabel::TextFitChangedSignal()
835 return mTextFitChangedSignal;
838 void TextLabel::OnInitialize()
842 Property::Map propertyMap;
843 propertyMap.Add(Toolkit::Visual::Property::TYPE, Toolkit::Visual::TEXT);
845 mVisual = Toolkit::VisualFactory::Get().CreateVisual(propertyMap);
846 DevelControl::RegisterVisual(*this, Toolkit::TextLabel::Property::TEXT, mVisual);
848 TextVisual::SetAnimatableTextColorProperty(mVisual, Toolkit::TextLabel::Property::TEXT_COLOR);
850 mController = TextVisual::GetController(mVisual);
851 DALI_ASSERT_DEBUG(mController && "Invalid Text Controller")
853 mController->SetControlInterface(this);
854 mController->SetAnchorControlInterface(this);
856 // Use height-for-width negotiation by default
857 self.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH);
858 self.SetResizePolicy(ResizePolicy::DIMENSION_DEPENDENCY, Dimension::HEIGHT);
860 // Enable highlightability
861 self.SetProperty(Toolkit::DevelControl::Property::ACCESSIBILITY_HIGHLIGHTABLE, true);
863 // Enable the text ellipsis.
864 mController->SetTextElideEnabled(true); // If false then text larger than control will overflow
866 // Sets layoutDirection value
867 Dali::Stage stage = Dali::Stage::GetCurrent();
868 Dali::LayoutDirection::Type layoutDirection = static_cast<Dali::LayoutDirection::Type>(stage.GetRootLayer().GetProperty(Dali::Actor::Property::LAYOUT_DIRECTION).Get<int>());
869 mController->SetLayoutDirection(layoutDirection);
871 self.LayoutDirectionChangedSignal().Connect(this, &TextLabel::OnLayoutDirectionChanged);
873 Layout::Engine& engine = mController->GetLayoutEngine();
874 engine.SetCursorWidth(0u); // Do not layout space for the cursor.
876 DevelControl::SetAccessibilityConstructor(self, [](Dali::Actor actor) {
877 return std::unique_ptr<Dali::Accessibility::Accessible>(
878 new AccessibleImpl(actor, Dali::Accessibility::Role::LABEL));
881 Accessibility::Bridge::EnabledSignal().Connect(this, &TextLabel::OnAccessibilityStatusChanged);
882 Accessibility::Bridge::DisabledSignal().Connect(this, &TextLabel::OnAccessibilityStatusChanged);
885 void TextLabel::OnStyleChange(Toolkit::StyleManager styleManager, StyleChange::Type change)
887 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "TextLabel::OnStyleChange\n");
891 case StyleChange::DEFAULT_FONT_CHANGE:
893 // Property system did not set the font so should update it.
894 const std::string& newFont = GetImpl(styleManager).GetDefaultFontFamily();
895 DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel::OnStyleChange StyleChange::DEFAULT_FONT_CHANGE newFont(%s)\n", newFont.c_str());
896 mController->UpdateAfterFontChange(newFont);
900 case StyleChange::DEFAULT_FONT_SIZE_CHANGE:
902 GetImpl(styleManager).ApplyThemeStyle(Toolkit::Control(GetOwner()));
906 case StyleChange::THEME_CHANGE:
908 // Nothing to do, let control base class handle this
913 // Up call to Control
914 Control::OnStyleChange(styleManager, change);
917 void TextLabel::OnTap(const TapGesture& gesture)
919 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "TextLabel::OnTap %p\n", mController.Get());
921 // Deliver the tap before the focus event to controller; this allows us to detect when focus is gained due to tap-gestures
923 padding = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
924 const Vector2& localPoint = gesture.GetLocalPoint();
925 mController->AnchorEvent(localPoint.x - padding.start, localPoint.y - padding.top);
928 void TextLabel::AnchorClicked(const std::string& href)
930 Dali::Toolkit::TextLabel handle(GetOwner());
931 mAnchorClickedSignal.Emit(handle, href.c_str(), href.length());
934 Vector3 TextLabel::GetNaturalSize()
937 padding = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
939 Vector3 naturalSize = mController->GetNaturalSize();
940 naturalSize.width += (padding.start + padding.end);
941 naturalSize.height += (padding.top + padding.bottom);
946 float TextLabel::GetHeightForWidth(float width)
949 padding = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
951 return mController->GetHeightForWidth(width) + padding.top + padding.bottom;
954 void TextLabel::OnPropertySet(Property::Index index, const Property::Value& propertyValue)
956 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "TextLabel::OnPropertySet index[%d]\n", index);
960 case Toolkit::TextLabel::Property::TEXT_COLOR:
962 const Vector4& textColor = propertyValue.Get<Vector4>();
963 if(mController->GetDefaultColor() != textColor)
965 mController->SetDefaultColor(textColor);
966 mTextUpdateNeeded = true;
970 case Toolkit::TextLabel::Property::TEXT:
971 case Toolkit::TextLabel::Property::ENABLE_MARKUP:
973 CommonTextUtils::SynchronizeTextAnchorsInParent(Self(), mController, mAnchorActors);
978 Control::OnPropertySet(index, propertyValue); // up call to control for non-handled properties
984 void TextLabel::OnRelayout(const Vector2& size, RelayoutContainer& container)
986 DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel::OnRelayout\n");
991 padding = self.GetProperty<Extents>(Toolkit::Control::Property::PADDING);
993 Vector2 contentSize(size.x - (padding.start + padding.end), size.y - (padding.top + padding.bottom));
995 if(mController->IsTextFitEnabled())
997 mController->FitPointSizeforLayout(contentSize);
998 mController->SetTextFitContentSize(contentSize);
1001 // Support Right-To-Left
1002 Dali::LayoutDirection::Type layoutDirection = mController->GetLayoutDirection(self);
1004 const Text::Controller::UpdateTextType updateTextType = mController->Relayout(contentSize, layoutDirection);
1006 if((Text::Controller::NONE_UPDATED != (Text::Controller::MODEL_UPDATED & updateTextType)) || mTextUpdateNeeded)
1008 DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel::OnRelayout IsAutoScrollEnabled[%s] [%p]\n", (mController->IsAutoScrollEnabled()) ? "true" : "false", this);
1010 // Update the visual
1011 TextVisual::EnableRendererUpdate(mVisual);
1013 // Support Right-To-Left of padding
1014 if(Dali::LayoutDirection::RIGHT_TO_LEFT == layoutDirection)
1016 std::swap(padding.start, padding.end);
1019 // Calculate the size of the visual that can fit the text
1020 Size layoutSize = mController->GetTextModel()->GetLayoutSize();
1021 layoutSize.x = contentSize.x;
1023 const Vector2& shadowOffset = mController->GetTextModel()->GetShadowOffset();
1024 if(shadowOffset.y > Math::MACHINE_EPSILON_1)
1026 layoutSize.y += shadowOffset.y;
1029 float outlineWidth = mController->GetTextModel()->GetOutlineWidth();
1030 layoutSize.y += outlineWidth * 2.0f;
1031 layoutSize.y = std::min(layoutSize.y, contentSize.y);
1033 // Calculate the offset for vertical alignment only, as the layout engine will do the horizontal alignment.
1034 Vector2 alignmentOffset;
1035 alignmentOffset.x = 0.0f;
1036 alignmentOffset.y = (contentSize.y - layoutSize.y) * VERTICAL_ALIGNMENT_TABLE[mController->GetVerticalAlignment()];
1038 Property::Map visualTransform;
1039 visualTransform.Add(Toolkit::Visual::Transform::Property::SIZE, layoutSize)
1040 .Add(Toolkit::Visual::Transform::Property::SIZE_POLICY, Vector2(Toolkit::Visual::Transform::Policy::ABSOLUTE, Toolkit::Visual::Transform::Policy::ABSOLUTE))
1041 .Add(Toolkit::Visual::Transform::Property::OFFSET, Vector2(padding.start, padding.top) + alignmentOffset)
1042 .Add(Toolkit::Visual::Transform::Property::OFFSET_POLICY, Vector2(Toolkit::Visual::Transform::Policy::ABSOLUTE, Toolkit::Visual::Transform::Policy::ABSOLUTE))
1043 .Add(Toolkit::Visual::Transform::Property::ORIGIN, Toolkit::Align::TOP_BEGIN)
1044 .Add(Toolkit::Visual::Transform::Property::ANCHOR_POINT, Toolkit::Align::TOP_BEGIN);
1045 mVisual.SetTransformAndSize(visualTransform, size);
1047 if(mController->IsAutoScrollEnabled())
1049 SetUpAutoScrolling();
1052 mTextUpdateNeeded = false;
1055 if(mController->IsTextFitChanged())
1057 EmitTextFitChangedSignal();
1058 mController->SetTextFitChanged(false);
1062 void TextLabel::RequestTextRelayout()
1065 // Signal that a Relayout may be needed
1068 void TextLabel::SetUpAutoScrolling()
1070 const Size& controlSize = mController->GetView().GetControlSize();
1071 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.
1072 const Text::CharacterDirection direction = mController->GetAutoScrollDirection();
1074 DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel::SetUpAutoScrolling textNaturalSize[%f,%f] controlSize[%f,%f]\n", textNaturalSize.x, textNaturalSize.y, controlSize.x, controlSize.y);
1078 DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel::SetUpAutoScrolling Creating default TextScoller\n");
1080 // If speed, loopCount or gap not set via property system then will need to create a TextScroller with defaults
1081 mTextScroller = Text::TextScroller::New(*this);
1084 // Calculate the actual gap before scrolling wraps.
1085 int textPadding = std::max(controlSize.x - textNaturalSize.x, 0.0f);
1086 float wrapGap = std::max(mTextScroller->GetGap(), textPadding);
1087 Vector2 textureSize = textNaturalSize + Vector2(wrapGap, 0.0f); // Add the gap as a part of the texture
1089 // Create a texture of the text for scrolling
1090 Size verifiedSize = textureSize;
1091 const int maxTextureSize = Dali::GetMaxTextureSize();
1093 //if the texture size width exceed maxTextureSize, modify the visual model size and enabled the ellipsis
1094 bool actualellipsis = mController->IsTextElideEnabled();
1095 if(verifiedSize.width > maxTextureSize)
1097 verifiedSize.width = maxTextureSize;
1098 if(textNaturalSize.width > maxTextureSize)
1100 mController->SetTextElideEnabled(true);
1102 GetHeightForWidth(maxTextureSize);
1103 wrapGap = std::max(maxTextureSize - textNaturalSize.width, 0.0f);
1106 Text::TypesetterPtr typesetter = Text::Typesetter::New(mController->GetTextModel());
1108 PixelData data = typesetter->Render(verifiedSize, mController->GetTextDirection(), Text::Typesetter::RENDER_TEXT_AND_STYLES, true, Pixel::RGBA8888); // ignore the horizontal alignment
1109 Texture texture = Texture::New(Dali::TextureType::TEXTURE_2D,
1110 data.GetPixelFormat(),
1113 texture.Upload(data);
1115 TextureSet textureSet = TextureSet::New();
1116 textureSet.SetTexture(0u, texture);
1118 // Filter mode needs to be set to linear to produce better quality while scaling.
1119 Sampler sampler = Sampler::New();
1120 sampler.SetFilterMode(FilterMode::LINEAR, FilterMode::LINEAR);
1121 sampler.SetWrapMode(Dali::WrapMode::DEFAULT, Dali::WrapMode::REPEAT, Dali::WrapMode::DEFAULT); // Wrap the texture in the x direction
1122 textureSet.SetSampler(0u, sampler);
1124 // Set parameters for scrolling
1125 Renderer renderer = static_cast<Internal::Visual::Base&>(GetImplementation(mVisual)).GetRenderer();
1126 mTextScroller->SetParameters(Self(), renderer, textureSet, controlSize, verifiedSize, wrapGap, direction, mController->GetHorizontalAlignment(), mController->GetVerticalAlignment());
1127 mController->SetTextElideEnabled(actualellipsis);
1130 void TextLabel::ScrollingFinished()
1132 // Pure Virtual from TextScroller Interface
1133 DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel::ScrollingFinished\n");
1134 mController->SetAutoScrollEnabled(false);
1135 RequestTextRelayout();
1138 void TextLabel::OnLayoutDirectionChanged(Actor actor, LayoutDirection::Type type)
1140 mController->ChangedLayoutDirection();
1143 void TextLabel::EmitTextFitChangedSignal()
1145 Dali::Toolkit::TextLabel handle(GetOwner());
1146 mTextFitChangedSignal.Emit(handle);
1149 void TextLabel::OnAccessibilityStatusChanged()
1151 CommonTextUtils::SynchronizeTextAnchorsInParent(Self(), mController, mAnchorActors);
1154 TextLabel::TextLabel()
1155 : Control(ControlBehaviour(CONTROL_BEHAVIOUR_DEFAULT)),
1156 mRenderingBackend(DEFAULT_RENDERING_BACKEND),
1157 mTextUpdateNeeded(false)
1161 TextLabel::~TextLabel()
1165 Vector<Vector2> TextLabel::GetTextSize(const uint32_t startIndex, const uint32_t endIndex) const
1167 return mController->GetTextSize(startIndex, endIndex);
1170 Vector<Vector2> TextLabel::GetTextPosition(const uint32_t startIndex, const uint32_t endIndex) const
1172 return mController->GetTextPosition(startIndex, endIndex);
1175 std::string TextLabel::AccessibleImpl::GetNameRaw() const
1177 auto self = Toolkit::TextLabel::DownCast(Self());
1178 return self.GetProperty(Toolkit::TextLabel::Property::TEXT).Get<std::string>();
1181 Property::Index TextLabel::AccessibleImpl::GetNamePropertyIndex()
1183 return Toolkit::TextLabel::Property::TEXT;
1186 std::string TextLabel::AccessibleImpl::GetText(size_t startOffset, size_t endOffset) const
1188 if(endOffset <= startOffset)
1193 auto self = Toolkit::TextLabel::DownCast(Self());
1194 auto text = self.GetProperty(Toolkit::TextLabel::Property::TEXT).Get<std::string>();
1196 if(startOffset > text.size() || endOffset > text.size())
1201 return text.substr(startOffset, endOffset - startOffset);
1204 size_t TextLabel::AccessibleImpl::GetCharacterCount() const
1206 auto self = Toolkit::TextLabel::DownCast(Self());
1207 auto text = self.GetProperty(Toolkit::TextLabel::Property::TEXT).Get<std::string>();
1212 size_t TextLabel::AccessibleImpl::GetCursorOffset() const
1217 bool TextLabel::AccessibleImpl::SetCursorOffset(size_t offset)
1222 Dali::Accessibility::Range TextLabel::AccessibleImpl::GetTextAtOffset(size_t offset, Dali::Accessibility::TextBoundary boundary) const
1224 auto self = Toolkit::TextLabel::DownCast(Self());
1225 auto text = self.GetProperty(Toolkit::TextLabel::Property::TEXT).Get<std::string>();
1226 auto textSize = text.size();
1228 auto range = Dali::Accessibility::Range{};
1232 case Dali::Accessibility::TextBoundary::CHARACTER:
1234 if(offset < textSize)
1236 range.content = text[offset];
1237 range.startOffset = offset;
1238 range.endOffset = offset + 1;
1242 case Dali::Accessibility::TextBoundary::WORD:
1243 case Dali::Accessibility::TextBoundary::LINE:
1245 auto textString = text.c_str();
1246 auto breaks = std::vector<char>(textSize, 0);
1248 if(boundary == Dali::Accessibility::TextBoundary::WORD)
1250 Accessibility::Accessible::FindWordSeparationsUtf8(reinterpret_cast<const utf8_t*>(textString), textSize, "", breaks.data());
1254 Accessibility::Accessible::FindLineSeparationsUtf8(reinterpret_cast<const utf8_t*>(textString), textSize, "", breaks.data());
1259 while(index < textSize && counter <= offset)
1264 while(breaks[index])
1272 if(boundary == Dali::Accessibility::TextBoundary::WORD)
1276 if(boundary == Dali::Accessibility::TextBoundary::LINE)
1282 if((counter > 0) && ((counter - 1) == offset))
1284 range.content = text.substr(start, index - start + 1);
1285 range.startOffset = start;
1286 range.endOffset = index + 1;
1289 if(boundary == Dali::Accessibility::TextBoundary::LINE)
1296 case Dali::Accessibility::TextBoundary::SENTENCE:
1298 /* not supported by default */
1301 case Dali::Accessibility::TextBoundary::PARAGRAPH:
1303 /* Paragraph is not supported by libunibreak library */
1313 Dali::Accessibility::Range TextLabel::AccessibleImpl::GetRangeOfSelection(size_t selectionIndex) const
1315 // Since DALi supports only one selection indexes higher than 0 are ignored
1316 if(selectionIndex > 0)
1321 auto self = Toolkit::TextLabel::DownCast(Self());
1322 auto controller = Dali::Toolkit::GetImpl(self).GetTextController();
1323 std::string value{};
1324 controller->RetrieveSelection(value);
1325 auto indices = controller->GetSelectionIndexes();
1327 return {static_cast<size_t>(indices.first), static_cast<size_t>(indices.second), value};
1330 bool TextLabel::AccessibleImpl::RemoveSelection(size_t selectionIndex)
1332 // Since DALi supports only one selection indexes higher than 0 are ignored
1333 if(selectionIndex > 0)
1338 auto self = Toolkit::TextLabel::DownCast(Self());
1339 Dali::Toolkit::GetImpl(self).GetTextController()->SetSelection(0, 0);
1343 bool TextLabel::AccessibleImpl::SetRangeOfSelection(size_t selectionIndex, size_t startOffset, size_t endOffset)
1345 // Since DALi supports only one selection indexes higher than 0 are ignored
1346 if(selectionIndex > 0)
1351 auto self = Toolkit::TextLabel::DownCast(Self());
1352 Dali::Toolkit::GetImpl(self).GetTextController()->SetSelection(startOffset, endOffset);
1356 int32_t TextLabel::AccessibleImpl::GetLinkCount() const
1358 auto self = Toolkit::TextLabel::DownCast(Self());
1359 return Dali::Toolkit::GetImpl(self).mAnchorActors.size();
1362 Accessibility::Hyperlink* TextLabel::AccessibleImpl::GetLink(int32_t linkIndex) const
1364 if(linkIndex < 0 || linkIndex >= GetLinkCount())
1368 auto self = Toolkit::TextLabel::DownCast(Self());
1369 auto anchorActor = Dali::Toolkit::GetImpl(self).mAnchorActors[linkIndex];
1370 return dynamic_cast<Accessibility::Hyperlink*>(Dali::Accessibility::Accessible::Get(anchorActor));
1373 int32_t TextLabel::AccessibleImpl::GetLinkIndex(int32_t characterOffset) const
1375 auto self = Toolkit::TextLabel::DownCast(Self());
1376 auto controller = Dali::Toolkit::GetImpl(self).GetTextController();
1377 return controller->GetAnchorIndex(static_cast<size_t>(characterOffset));
1380 } // namespace Internal
1382 } // namespace Toolkit