dali-toolkit/internal/controls/text-controls/text-label-impl.cpp

   1 /*
   2  * Copyright (c) 2022 Samsung Electronics Co., Ltd.
   3  *
   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
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  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.
  15  *
  16  */
  17
  18 // CLASS HEADER
  19 #include <dali-toolkit/internal/controls/text-controls/text-label-impl.h>
  20
  21 // EXTERNAL INCLUDES
  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>
  29
  30 // INTERNAL INCLUDES
  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>
  42
  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>
  50
  51 // DEVEL INCLUDES
  52 #include <dali-toolkit/devel-api/controls/text-controls/text-label-devel.h>
  53
  54 using namespace Dali::Toolkit::Text;
  55
  56 namespace Dali
  57 {
  58 namespace Toolkit
  59 {
  60 namespace Internal
  61 {
  62 namespace
  63 {
  64 const unsigned int DEFAULT_RENDERING_BACKEND = Dali::Toolkit::DevelText::DEFAULT_RENDERING_BACKEND;
  65
  66 /**
  67  * @brief How the text visual should be aligned vertically inside the control.
  68  *
  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).
  71  */
  72 const float VERTICAL_ALIGNMENT_TABLE[Text::VerticalAlignment::BOTTOM + 1] =
  73 {
  74     0.0f, // VerticalAlignment::TOP
  75     0.5f, // VerticalAlignment::CENTER
  76     1.0f  // VerticalAlignment::BOTTOM
  77 };
  78
  79 const char* TEXT_FIT_ENABLE_KEY("enable");
  80 const char* TEXT_FIT_MIN_SIZE_KEY("minSize");
  81 const char* TEXT_FIT_MAX_SIZE_KEY("maxSize");
  82 const char* TEXT_FIT_STEP_SIZE_KEY("stepSize");
  83 const char* TEXT_FIT_FONT_SIZE_KEY("fontSize");
  84 const char* TEXT_FIT_FONT_SIZE_TYPE_KEY("fontSizeType");
  85
  86 #if defined(DEBUG_ENABLED)
  87 Debug::Filter* gLogFilter = Debug::Filter::New(Debug::NoLogging, true, "LOG_TEXT_CONTROLS");
  88 #endif
  89
  90 const Scripting::StringEnum AUTO_SCROLL_STOP_MODE_TABLE[] =
  91 {
  92     {"IMMEDIATE", Toolkit::TextLabel::AutoScrollStopMode::IMMEDIATE},
  93     {"FINISH_LOOP", Toolkit::TextLabel::AutoScrollStopMode::FINISH_LOOP},
  94 };
  95 const unsigned int AUTO_SCROLL_STOP_MODE_TABLE_COUNT = sizeof(AUTO_SCROLL_STOP_MODE_TABLE) / sizeof(AUTO_SCROLL_STOP_MODE_TABLE[0]);
  96
  97 // Type registration
  98 BaseHandle Create()
  99 {
 100   return Toolkit::TextLabel::New();
 101 }
 102
 103 // clang-format off
 104 // Setup properties, signals and actions using the type-registry.
 105 DALI_TYPE_REGISTRATION_BEGIN(Toolkit::TextLabel, Toolkit::Control, Create);
 106
 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              )
 143 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextLabel, "relativeLineSize",             FLOAT,   RELATIVE_LINE_SIZE             )
 144 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextLabel, "anchorColor",                  VECTOR4, ANCHOR_COLOR                   )
 145 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextLabel, "anchorClickedColor",           VECTOR4, ANCHOR_CLICKED_COLOR           )
 146
 147 DALI_ANIMATABLE_PROPERTY_REGISTRATION_WITH_DEFAULT(Toolkit, TextLabel, "textColor",      Color::BLACK,     TEXT_COLOR   )
 148 DALI_ANIMATABLE_PROPERTY_COMPONENT_REGISTRATION(Toolkit,    TextLabel, "textColorRed",   TEXT_COLOR_RED,   TEXT_COLOR, 0)
 149 DALI_ANIMATABLE_PROPERTY_COMPONENT_REGISTRATION(Toolkit,    TextLabel, "textColorGreen", TEXT_COLOR_GREEN, TEXT_COLOR, 1)
 150 DALI_ANIMATABLE_PROPERTY_COMPONENT_REGISTRATION(Toolkit,    TextLabel, "textColorBlue",  TEXT_COLOR_BLUE,  TEXT_COLOR, 2)
 151 DALI_ANIMATABLE_PROPERTY_COMPONENT_REGISTRATION(Toolkit,    TextLabel, "textColorAlpha", TEXT_COLOR_ALPHA, TEXT_COLOR, 3)
 152
 153 DALI_SIGNAL_REGISTRATION(Toolkit, TextLabel, "anchorClicked", SIGNAL_ANCHOR_CLICKED)
 154 DALI_SIGNAL_REGISTRATION(Toolkit, TextLabel, "textFitChanged", SIGNAL_TEXT_FIT_CHANGED)
 155
 156 DALI_TYPE_REGISTRATION_END()
 157 // clang-format on
 158
 159 /// Parses the property map for the TEXT_FIT property
 160 void ParseTextFitProperty(Text::ControllerPtr& controller, const Property::Map* propertiesMap)
 161 {
 162   if(propertiesMap && !propertiesMap->Empty())
 163   {
 164     bool                     enabled      = false;
 165     float                    minSize      = 0.f;
 166     float                    maxSize      = 0.f;
 167     float                    stepSize     = 0.f;
 168     bool                     isMinSizeSet = false, isMaxSizeSet = false, isStepSizeSet = false;
 169     Controller::FontSizeType type = Controller::FontSizeType::POINT_SIZE;
 170
 171     const unsigned int numberOfItems = propertiesMap->Count();
 172
 173     // Parses and applies
 174     for(unsigned int index = 0u; index < numberOfItems; ++index)
 175     {
 176       const KeyValuePair& valueGet = propertiesMap->GetKeyValue(index);
 177
 178       if((Controller::TextFitInfo::Property::TEXT_FIT_ENABLE == valueGet.first.indexKey) || (TEXT_FIT_ENABLE_KEY == valueGet.first.stringKey))
 179       {
 180         /// Enable key.
 181         enabled = valueGet.second.Get<bool>();
 182       }
 183       else if((Controller::TextFitInfo::Property::TEXT_FIT_MIN_SIZE == valueGet.first.indexKey) || (TEXT_FIT_MIN_SIZE_KEY == valueGet.first.stringKey))
 184       {
 185         /// min size.
 186         minSize      = valueGet.second.Get<float>();
 187         isMinSizeSet = true;
 188       }
 189       else if((Controller::TextFitInfo::Property::TEXT_FIT_MAX_SIZE == valueGet.first.indexKey) || (TEXT_FIT_MAX_SIZE_KEY == valueGet.first.stringKey))
 190       {
 191         /// max size.
 192         maxSize      = valueGet.second.Get<float>();
 193         isMaxSizeSet = true;
 194       }
 195       else if((Controller::TextFitInfo::Property::TEXT_FIT_STEP_SIZE == valueGet.first.indexKey) || (TEXT_FIT_STEP_SIZE_KEY == valueGet.first.stringKey))
 196       {
 197         /// step size.
 198         stepSize      = valueGet.second.Get<float>();
 199         isStepSizeSet = true;
 200       }
 201       else if((Controller::TextFitInfo::Property::TEXT_FIT_FONT_SIZE_TYPE == valueGet.first.indexKey) || (TEXT_FIT_FONT_SIZE_TYPE_KEY == valueGet.first.stringKey))
 202       {
 203         if("pixelSize" == valueGet.second.Get<std::string>())
 204         {
 205           type = Controller::FontSizeType::PIXEL_SIZE;
 206         }
 207       }
 208     }
 209
 210     controller->SetTextFitEnabled(enabled);
 211     // The TextFit operation is performed based on the MinLineSize set in the TextLabel at the moment when the TextFit property is set.
 212     // So, if you change the TextLabel's MinLineSize after setting the TextFit property, it does not affect the operation of TextFit.
 213     // This may require a new LineSize item in TextFit.
 214     controller->SetTextFitLineSize(controller->GetDefaultLineSize());
 215     if(isMinSizeSet)
 216     {
 217       controller->SetTextFitMinSize(minSize, type);
 218     }
 219     if(isMaxSizeSet)
 220     {
 221       controller->SetTextFitMaxSize(maxSize, type);
 222     }
 223     if(isStepSizeSet)
 224     {
 225       controller->SetTextFitStepSize(stepSize, type);
 226     }
 227   }
 228 }
 229
 230 } // namespace
 231
 232 Toolkit::TextLabel TextLabel::New(ControlBehaviour additionalBehaviour)
 233 {
 234   // Create the implementation, temporarily owned by this handle on stack
 235   IntrusivePtr<TextLabel> impl = new TextLabel(additionalBehaviour);
 236
 237   // Pass ownership to CustomActor handle
 238   Toolkit::TextLabel handle(*impl);
 239
 240   // Second-phase init of the implementation
 241   // This can only be done after the CustomActor connection has been made...
 242   impl->Initialize();
 243
 244   return handle;
 245 }
 246
 247 void TextLabel::SetProperty(BaseObject* object, Property::Index index, const Property::Value& value)
 248 {
 249   Toolkit::TextLabel label = Toolkit::TextLabel::DownCast(Dali::BaseHandle(object));
 250
 251   if(label)
 252   {
 253     TextLabel& impl(GetImpl(label));
 254     DALI_ASSERT_ALWAYS(impl.mController && "No text contoller");
 255
 256     switch(index)
 257     {
 258       case Toolkit::DevelTextLabel::Property::RENDERING_BACKEND:
 259       {
 260         int backend = value.Get<int>();
 261
 262 #ifndef ENABLE_VECTOR_BASED_TEXT_RENDERING
 263         if(DevelText::RENDERING_VECTOR_BASED == backend)
 264         {
 265           backend = TextAbstraction::BITMAP_GLYPH; // Fallback to bitmap-based rendering
 266         }
 267 #endif
 268         if(impl.mRenderingBackend != backend)
 269         {
 270           impl.mRenderingBackend = backend;
 271           impl.mTextUpdateNeeded = true;
 272
 273           // When using the vector-based rendering, the size of the GLyphs are different
 274           TextAbstraction::GlyphType glyphType = (DevelText::RENDERING_VECTOR_BASED == impl.mRenderingBackend) ? TextAbstraction::VECTOR_GLYPH : TextAbstraction::BITMAP_GLYPH;
 275           impl.mController->SetGlyphType(glyphType);
 276         }
 277         break;
 278       }
 279       case Toolkit::TextLabel::Property::TEXT:
 280       {
 281         impl.mController->SetText(value.Get<std::string>());
 282
 283         if(impl.mController->HasAnchors())
 284         {
 285           // Forward input events to controller
 286           impl.EnableGestureDetection(static_cast<GestureType::Value>(GestureType::TAP));
 287         }
 288         else
 289         {
 290           impl.DisableGestureDetection(static_cast<GestureType::Value>(GestureType::TAP));
 291         }
 292
 293         break;
 294       }
 295       case Toolkit::TextLabel::Property::FONT_FAMILY:
 296       {
 297         const std::string& fontFamily = value.Get<std::string>();
 298
 299         DALI_LOG_INFO(gLogFilter, Debug::Verbose, "TextLabel::SetProperty Property::FONT_FAMILY newFont(%s)\n", fontFamily.c_str());
 300         impl.mController->SetDefaultFontFamily(fontFamily);
 301         break;
 302       }
 303       case Toolkit::TextLabel::Property::FONT_STYLE:
 304       {
 305         SetFontStyleProperty(impl.mController, value, Text::FontStyle::DEFAULT);
 306         break;
 307       }
 308       case Toolkit::TextLabel::Property::POINT_SIZE:
 309       {
 310         const float pointSize = value.Get<float>();
 311
 312         if(!Equals(impl.mController->GetDefaultFontSize(Text::Controller::POINT_SIZE), pointSize))
 313         {
 314           impl.mController->SetDefaultFontSize(pointSize, Text::Controller::POINT_SIZE);
 315         }
 316         break;
 317       }
 318       case Toolkit::TextLabel::Property::MULTI_LINE:
 319       {
 320         impl.mController->SetMultiLineEnabled(value.Get<bool>());
 321         break;
 322       }
 323       case Toolkit::TextLabel::Property::HORIZONTAL_ALIGNMENT:
 324       {
 325         Text::HorizontalAlignment::Type alignment(static_cast<Text::HorizontalAlignment::Type>(-1)); // Set to invalid value to ensure a valid mode does get set
 326         if(Text::GetHorizontalAlignmentEnumeration(value, alignment))
 327         {
 328           impl.mController->SetHorizontalAlignment(alignment);
 329         }
 330         break;
 331       }
 332       case Toolkit::TextLabel::Property::VERTICAL_ALIGNMENT:
 333       {
 334         Toolkit::Text::VerticalAlignment::Type alignment(static_cast<Text::VerticalAlignment::Type>(-1)); // Set to invalid value to ensure a valid mode does get set
 335         if(Text::GetVerticalAlignmentEnumeration(value, alignment))
 336         {
 337           impl.mController->SetVerticalAlignment(alignment);
 338         }
 339         break;
 340       }
 341       case Toolkit::TextLabel::Property::ENABLE_MARKUP:
 342       {
 343         const bool enableMarkup = value.Get<bool>();
 344         impl.mController->SetMarkupProcessorEnabled(enableMarkup);
 345
 346         if(impl.mController->HasAnchors())
 347         {
 348           // Forward input events to controller
 349           impl.EnableGestureDetection(static_cast<GestureType::Value>(GestureType::TAP));
 350         }
 351         else
 352         {
 353           impl.DisableGestureDetection(static_cast<GestureType::Value>(GestureType::TAP));
 354         }
 355         break;
 356       }
 357       case Toolkit::TextLabel::Property::ENABLE_AUTO_SCROLL:
 358       {
 359         const bool enableAutoScroll = value.Get<bool>();
 360         impl.mLastAutoScrollEnabled = enableAutoScroll;
 361         // If request to auto scroll is the same as current state then do nothing.
 362         if(enableAutoScroll != impl.mController->IsAutoScrollEnabled())
 363         {
 364           // If request is disable (false) and auto scrolling is enabled then need to stop it
 365           if(enableAutoScroll == false)
 366           {
 367             if(impl.mTextScroller)
 368             {
 369               impl.mTextScroller->StopScrolling();
 370             }
 371           }
 372           // If request is enable (true) then start autoscroll as not already running
 373           else
 374           {
 375             impl.mController->SetAutoScrollEnabled(enableAutoScroll);
 376           }
 377         }
 378         break;
 379       }
 380       case Toolkit::TextLabel::Property::AUTO_SCROLL_STOP_MODE:
 381       {
 382         Text::TextScrollerPtr                        textScroller = impl.GetTextScroller();
 383         Toolkit::TextLabel::AutoScrollStopMode::Type stopMode     = textScroller->GetStopMode();
 384         if(Scripting::GetEnumerationProperty<Toolkit::TextLabel::AutoScrollStopMode::Type>(value,
 385                                                                                            AUTO_SCROLL_STOP_MODE_TABLE,
 386                                                                                            AUTO_SCROLL_STOP_MODE_TABLE_COUNT,
 387                                                                                            stopMode))
 388         {
 389           textScroller->SetStopMode(stopMode);
 390         }
 391         break;
 392       }
 393       case Toolkit::TextLabel::Property::AUTO_SCROLL_SPEED:
 394       {
 395         impl.GetTextScroller()->SetSpeed(value.Get<int>());
 396         break;
 397       }
 398       case Toolkit::TextLabel::Property::AUTO_SCROLL_LOOP_COUNT:
 399       {
 400         impl.GetTextScroller()->SetLoopCount(value.Get<int>());
 401         break;
 402       }
 403       case Toolkit::TextLabel::Property::AUTO_SCROLL_LOOP_DELAY:
 404       {
 405         impl.GetTextScroller()->SetLoopDelay(value.Get<float>());
 406         break;
 407       }
 408       case Toolkit::TextLabel::Property::AUTO_SCROLL_GAP:
 409       {
 410         impl.GetTextScroller()->SetGap(value.Get<float>());
 411         break;
 412       }
 413       case Toolkit::TextLabel::Property::LINE_SPACING:
 414       {
 415         const float lineSpacing = value.Get<float>();
 416         impl.mTextUpdateNeeded  = impl.mController->SetDefaultLineSpacing(lineSpacing) || impl.mTextUpdateNeeded;
 417         break;
 418       }
 419       case Toolkit::TextLabel::Property::UNDERLINE:
 420       {
 421         impl.mTextUpdateNeeded = SetUnderlineProperties(impl.mController, value, Text::EffectStyle::DEFAULT) || impl.mTextUpdateNeeded;
 422         break;
 423       }
 424       case Toolkit::TextLabel::Property::SHADOW:
 425       {
 426         impl.mTextUpdateNeeded = SetShadowProperties(impl.mController, value, Text::EffectStyle::DEFAULT) || impl.mTextUpdateNeeded;
 427         break;
 428       }
 429       case Toolkit::TextLabel::Property::EMBOSS:
 430       {
 431         impl.mTextUpdateNeeded = SetEmbossProperties(impl.mController, value, Text::EffectStyle::DEFAULT) || impl.mTextUpdateNeeded;
 432         break;
 433       }
 434       case Toolkit::TextLabel::Property::OUTLINE:
 435       {
 436         impl.mTextUpdateNeeded = SetOutlineProperties(impl.mController, value, Text::EffectStyle::DEFAULT) || impl.mTextUpdateNeeded;
 437         break;
 438       }
 439       case Toolkit::TextLabel::Property::PIXEL_SIZE:
 440       {
 441         const float pixelSize = value.Get<float>();
 442         DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel %p PIXEL_SIZE %f\n", impl.mController.Get(), pixelSize);
 443
 444         if(!Equals(impl.mController->GetDefaultFontSize(Text::Controller::PIXEL_SIZE), pixelSize))
 445         {
 446           impl.mController->SetDefaultFontSize(pixelSize, Text::Controller::PIXEL_SIZE);
 447         }
 448         break;
 449       }
 450       case Toolkit::TextLabel::Property::ELLIPSIS:
 451       {
 452         const bool ellipsis = value.Get<bool>();
 453         DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel %p ELLIPSIS %d\n", impl.mController.Get(), ellipsis);
 454
 455         impl.mController->SetTextElideEnabled(ellipsis);
 456         break;
 457       }
 458       case Toolkit::TextLabel::Property::LINE_WRAP_MODE:
 459       {
 460         Text::LineWrap::Mode lineWrapMode(static_cast<Text::LineWrap::Mode>(-1)); // Set to invalid value to ensure a valid mode does get set
 461         if(GetLineWrapModeEnumeration(value, lineWrapMode))
 462         {
 463           DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel %p LineWrap::MODE %d\n", impl.mController.Get(), lineWrapMode);
 464           impl.mController->SetLineWrapMode(lineWrapMode);
 465         }
 466         break;
 467       }
 468       case Toolkit::DevelTextLabel::Property::VERTICAL_LINE_ALIGNMENT:
 469       {
 470         if(impl.mController->GetTextModel())
 471         {
 472           DevelText::VerticalLineAlignment::Type alignment = static_cast<DevelText::VerticalLineAlignment::Type>(value.Get<int>());
 473
 474           impl.mController->SetVerticalLineAlignment(alignment);
 475
 476           // Property doesn't affect the layout, only Visual must be updated
 477           TextVisual::EnableRendererUpdate(impl.mVisual);
 478
 479           // No need to trigger full re-layout. Instead call UpdateRenderer() directly
 480           TextVisual::UpdateRenderer(impl.mVisual);
 481         }
 482         break;
 483       }
 484       case Toolkit::DevelTextLabel::Property::BACKGROUND:
 485       {
 486         impl.mTextUpdateNeeded = SetBackgroundProperties(impl.mController, value, Text::EffectStyle::DEFAULT) || impl.mTextUpdateNeeded;
 487         break;
 488       }
 489       case Toolkit::DevelTextLabel::Property::IGNORE_SPACES_AFTER_TEXT:
 490       {
 491         impl.mController->SetIgnoreSpacesAfterText(value.Get<bool>());
 492         break;
 493       }
 494       case Toolkit::DevelTextLabel::Property::MATCH_SYSTEM_LANGUAGE_DIRECTION:
 495       {
 496         impl.mController->SetMatchLayoutDirection(value.Get<bool>() ? DevelText::MatchLayoutDirection::LOCALE : DevelText::MatchLayoutDirection::CONTENTS);
 497         break;
 498       }
 499       case Toolkit::DevelTextLabel::Property::TEXT_FIT:
 500       {
 501         // If TextFitArray is enabled, this should be disabled.
 502         if(impl.mController->IsTextFitArrayEnabled())
 503         {
 504           impl.mController->SetDefaultLineSize(impl.mController->GetCurrentLineSize());
 505           impl.mController->SetTextFitArrayEnabled(false);
 506         }
 507
 508         ParseTextFitProperty(impl.mController, value.GetMap());
 509         impl.mController->SetTextFitChanged(true);
 510         break;
 511       }
 512       case Toolkit::DevelTextLabel::Property::MIN_LINE_SIZE:
 513       {
 514         const float lineSize = value.Get<float>();
 515         // If TextFitArray is enabled, do not update the default line size.
 516         if(!impl.mController->IsTextFitArrayEnabled())
 517         {
 518           impl.mTextUpdateNeeded = impl.mController->SetDefaultLineSize(lineSize) || impl.mTextUpdateNeeded;
 519         }
 520         impl.mController->SetCurrentLineSize(lineSize);
 521         break;
 522       }
 523       case Toolkit::DevelTextLabel::Property::FONT_SIZE_SCALE:
 524       {
 525         const float scale = value.Get<float>();
 526         DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel %p FONT_SIZE_SCALE %f\n", impl.mController.Get(), scale);
 527
 528         if(!Equals(impl.mController->GetFontSizeScale(), scale))
 529         {
 530           impl.mController->SetFontSizeScale(scale);
 531         }
 532         break;
 533       }
 534       case Toolkit::DevelTextLabel::Property::ENABLE_FONT_SIZE_SCALE:
 535       {
 536         const bool enableFontSizeScale = value.Get<bool>();
 537         if(!Equals(impl.mController->IsFontSizeScaleEnabled(), enableFontSizeScale))
 538         {
 539           impl.mController->SetFontSizeScaleEnabled(enableFontSizeScale);
 540         }
 541         break;
 542       }
 543       case Toolkit::DevelTextLabel::Property::ELLIPSIS_POSITION:
 544       {
 545         DevelText::EllipsisPosition::Type ellipsisPositionType(static_cast<DevelText::EllipsisPosition::Type>(-1)); // Set to invalid value to ensure a valid mode does get set
 546         if(GetEllipsisPositionTypeEnumeration(value, ellipsisPositionType))
 547         {
 548           DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel %p EllipsisPosition::Type %d\n", impl.mController.Get(), ellipsisPositionType);
 549           impl.mController->SetEllipsisPosition(ellipsisPositionType);
 550         }
 551         break;
 552       }
 553       case Toolkit::DevelTextLabel::Property::STRIKETHROUGH:
 554       {
 555         impl.mTextUpdateNeeded = SetStrikethroughProperties(impl.mController, value, Text::EffectStyle::DEFAULT) || impl.mTextUpdateNeeded;
 556         break;
 557       }
 558       case Toolkit::DevelTextLabel::Property::CHARACTER_SPACING:
 559       {
 560         const float characterSpacing = value.Get<float>();
 561         impl.mController->SetCharacterSpacing(characterSpacing);
 562         break;
 563       }
 564       case Toolkit::DevelTextLabel::Property::RELATIVE_LINE_SIZE:
 565       {
 566         const float relativeLineSize = value.Get<float>();
 567         DALI_LOG_INFO(gLogFilter, Debug::Verbose, "TextLabel %p RELATIVE_LINE_SIZE %f\n", impl.mController.Get(), relativeLineSize);
 568
 569         impl.mController->SetRelativeLineSize(relativeLineSize);
 570         break;
 571       }
 572       case Toolkit::DevelTextLabel::Property::ANCHOR_COLOR:
 573       {
 574         const Vector4& anchorColor = value.Get<Vector4>();
 575         if(impl.mController->GetAnchorColor() != anchorColor)
 576         {
 577           impl.mController->SetAnchorColor(anchorColor);
 578           impl.mTextUpdateNeeded = true;
 579         }
 580         break;
 581       }
 582       case Toolkit::DevelTextLabel::Property::ANCHOR_CLICKED_COLOR:
 583       {
 584         const Vector4& anchorClickedColor = value.Get<Vector4>();
 585         if(impl.mController->GetAnchorClickedColor() != anchorClickedColor)
 586         {
 587           impl.mController->SetAnchorClickedColor(anchorClickedColor);
 588           impl.mTextUpdateNeeded = true;
 589         }
 590         break;
 591       }
 592     }
 593
 594     // Request relayout when text update is needed. It's necessary to call it
 595     // as changing the property not via UI interaction brings no effect if only
 596     // the mTextUpdateNeeded is changed.
 597     if(impl.mTextUpdateNeeded)
 598     {
 599       // need to request relayout as size of text may have changed
 600       impl.RequestTextRelayout();
 601     }
 602   }
 603 }
 604
 605 Text::ControllerPtr TextLabel::GetTextController()
 606 {
 607   return mController;
 608 }
 609
 610 Property::Value TextLabel::GetProperty(BaseObject* object, Property::Index index)
 611 {
 612   Property::Value value;
 613
 614   Toolkit::TextLabel label = Toolkit::TextLabel::DownCast(Dali::BaseHandle(object));
 615
 616   if(label)
 617   {
 618     TextLabel& impl(GetImpl(label));
 619     DALI_ASSERT_DEBUG(impl.mController && "No text contoller");
 620
 621     switch(index)
 622     {
 623       case Toolkit::DevelTextLabel::Property::RENDERING_BACKEND:
 624       {
 625         value = impl.mRenderingBackend;
 626         break;
 627       }
 628       case Toolkit::TextLabel::Property::TEXT:
 629       {
 630         std::string text;
 631         impl.mController->GetText(text);
 632         value = text;
 633         break;
 634       }
 635       case Toolkit::TextLabel::Property::FONT_FAMILY:
 636       {
 637         value = impl.mController->GetDefaultFontFamily();
 638         break;
 639       }
 640       case Toolkit::TextLabel::Property::FONT_STYLE:
 641       {
 642         GetFontStyleProperty(impl.mController, value, Text::FontStyle::DEFAULT);
 643         break;
 644       }
 645       case Toolkit::TextLabel::Property::POINT_SIZE:
 646       {
 647         value = impl.mController->GetDefaultFontSize(Text::Controller::POINT_SIZE);
 648         break;
 649       }
 650       case Toolkit::TextLabel::Property::MULTI_LINE:
 651       {
 652         value = impl.mController->IsMultiLineEnabled();
 653         break;
 654       }
 655       case Toolkit::TextLabel::Property::HORIZONTAL_ALIGNMENT:
 656       {
 657         const char* name = Text::GetHorizontalAlignmentString(impl.mController->GetHorizontalAlignment());
 658
 659         if(name)
 660         {
 661           value = std::string(name);
 662         }
 663         break;
 664       }
 665       case Toolkit::TextLabel::Property::VERTICAL_ALIGNMENT:
 666       {
 667         const char* name = Text::GetVerticalAlignmentString(impl.mController->GetVerticalAlignment());
 668         if(name)
 669         {
 670           value = std::string(name);
 671         }
 672         break;
 673       }
 674       case Toolkit::TextLabel::Property::ENABLE_MARKUP:
 675       {
 676         value = impl.mController->IsMarkupProcessorEnabled();
 677         break;
 678       }
 679       case Toolkit::TextLabel::Property::ENABLE_AUTO_SCROLL:
 680       {
 681         value = impl.mController->IsAutoScrollEnabled();
 682         break;
 683       }
 684       case Toolkit::TextLabel::Property::AUTO_SCROLL_STOP_MODE:
 685       {
 686         if(impl.mTextScroller)
 687         {
 688           const char* mode = Scripting::GetEnumerationName<Toolkit::TextLabel::AutoScrollStopMode::Type>(impl.mTextScroller->GetStopMode(),
 689                                                                                                          AUTO_SCROLL_STOP_MODE_TABLE,
 690                                                                                                          AUTO_SCROLL_STOP_MODE_TABLE_COUNT);
 691           if(mode)
 692           {
 693             value = std::string(mode);
 694           }
 695         }
 696         break;
 697       }
 698       case Toolkit::TextLabel::Property::AUTO_SCROLL_SPEED:
 699       {
 700         if(impl.mTextScroller)
 701         {
 702           value = impl.mTextScroller->GetSpeed();
 703         }
 704         break;
 705       }
 706       case Toolkit::TextLabel::Property::AUTO_SCROLL_LOOP_COUNT:
 707       {
 708         if(impl.mTextScroller)
 709         {
 710           value = impl.mTextScroller->GetLoopCount();
 711         }
 712         break;
 713       }
 714       case Toolkit::TextLabel::Property::AUTO_SCROLL_LOOP_DELAY:
 715       {
 716         if(impl.mTextScroller)
 717         {
 718           value = impl.mTextScroller->GetLoopDelay();
 719         }
 720         break;
 721       }
 722       case Toolkit::TextLabel::Property::AUTO_SCROLL_GAP:
 723       {
 724         if(impl.mTextScroller)
 725         {
 726           value = impl.mTextScroller->GetGap();
 727         }
 728         break;
 729       }
 730       case Toolkit::TextLabel::Property::LINE_SPACING:
 731       {
 732         value = impl.mController->GetDefaultLineSpacing();
 733         break;
 734       }
 735       case Toolkit::TextLabel::Property::UNDERLINE:
 736       {
 737         GetUnderlineProperties(impl.mController, value, Text::EffectStyle::DEFAULT);
 738         break;
 739       }
 740       case Toolkit::TextLabel::Property::SHADOW:
 741       {
 742         GetShadowProperties(impl.mController, value, Text::EffectStyle::DEFAULT);
 743         break;
 744       }
 745       case Toolkit::TextLabel::Property::EMBOSS:
 746       {
 747         GetEmbossProperties(impl.mController, value, Text::EffectStyle::DEFAULT);
 748         break;
 749       }
 750       case Toolkit::TextLabel::Property::OUTLINE:
 751       {
 752         GetOutlineProperties(impl.mController, value, Text::EffectStyle::DEFAULT);
 753         break;
 754       }
 755       case Toolkit::TextLabel::Property::PIXEL_SIZE:
 756       {
 757         value = impl.mController->GetDefaultFontSize(Text::Controller::PIXEL_SIZE);
 758         break;
 759       }
 760       case Toolkit::TextLabel::Property::ELLIPSIS:
 761       {
 762         value = impl.mController->IsTextElideEnabled();
 763         break;
 764       }
 765       case Toolkit::TextLabel::Property::LINE_WRAP_MODE:
 766       {
 767         value = impl.mController->GetLineWrapMode();
 768         break;
 769       }
 770       case Toolkit::TextLabel::Property::LINE_COUNT:
 771       {
 772         float width = label.GetProperty(Actor::Property::SIZE_WIDTH).Get<float>();
 773         value       = impl.mController->GetLineCount(width);
 774         break;
 775       }
 776       case Toolkit::DevelTextLabel::Property::TEXT_DIRECTION:
 777       {
 778         value = impl.mController->GetTextDirection();
 779         break;
 780       }
 781       case Toolkit::DevelTextLabel::Property::VERTICAL_LINE_ALIGNMENT:
 782       {
 783         value = impl.mController->GetVerticalLineAlignment();
 784         break;
 785       }
 786       case Toolkit::DevelTextLabel::Property::BACKGROUND:
 787       {
 788         GetBackgroundProperties(impl.mController, value, Text::EffectStyle::DEFAULT);
 789         break;
 790       }
 791       case Toolkit::DevelTextLabel::Property::IGNORE_SPACES_AFTER_TEXT:
 792       {
 793         value = impl.mController->IsIgnoreSpacesAfterText();
 794         break;
 795       }
 796       case Toolkit::DevelTextLabel::Property::MATCH_SYSTEM_LANGUAGE_DIRECTION:
 797       {
 798         value = impl.mController->GetMatchLayoutDirection() != DevelText::MatchLayoutDirection::CONTENTS;
 799         break;
 800       }
 801       case Toolkit::DevelTextLabel::Property::TEXT_FIT:
 802       {
 803         const bool  enabled   = impl.mController->IsTextFitEnabled();
 804         const float minSize   = impl.mController->GetTextFitMinSize();
 805         const float maxSize   = impl.mController->GetTextFitMaxSize();
 806         const float stepSize  = impl.mController->GetTextFitStepSize();
 807         const float pointSize = impl.mController->GetTextFitPointSize();
 808
 809         Property::Map map;
 810         map.Insert(TEXT_FIT_ENABLE_KEY, enabled);
 811         map.Insert(TEXT_FIT_MIN_SIZE_KEY, minSize);
 812         map.Insert(TEXT_FIT_MAX_SIZE_KEY, maxSize);
 813         map.Insert(TEXT_FIT_STEP_SIZE_KEY, stepSize);
 814         map.Insert(TEXT_FIT_FONT_SIZE_KEY, pointSize);
 815         map.Insert(TEXT_FIT_FONT_SIZE_TYPE_KEY, "pointSize");
 816
 817         value = map;
 818         break;
 819       }
 820       case Toolkit::DevelTextLabel::Property::MIN_LINE_SIZE:
 821       {
 822         // If TextFitArray is enabled, the stored value (MIN_LINE_SIZE set by the user) is retrun.
 823         value = impl.mController->IsTextFitArrayEnabled() ? impl.mController->GetCurrentLineSize() : impl.mController->GetDefaultLineSize();
 824         break;
 825       }
 826       case Toolkit::DevelTextLabel::Property::FONT_SIZE_SCALE:
 827       {
 828         value = impl.mController->GetFontSizeScale();
 829         break;
 830       }
 831       case Toolkit::DevelTextLabel::Property::ENABLE_FONT_SIZE_SCALE:
 832       {
 833         value = impl.mController->IsFontSizeScaleEnabled();
 834         break;
 835       }
 836       case Toolkit::DevelTextLabel::Property::ELLIPSIS_POSITION:
 837       {
 838         value = impl.mController->GetEllipsisPosition();
 839         break;
 840       }
 841       case Toolkit::DevelTextLabel::Property::STRIKETHROUGH:
 842       {
 843         GetStrikethroughProperties(impl.mController, value, Text::EffectStyle::DEFAULT);
 844         break;
 845       }
 846       case Toolkit::DevelTextLabel::Property::CHARACTER_SPACING:
 847       {
 848         value = impl.mController->GetCharacterSpacing();
 849         break;
 850       }
 851       case Toolkit::DevelTextLabel::Property::RELATIVE_LINE_SIZE:
 852       {
 853         value = impl.mController->GetRelativeLineSize();
 854         break;
 855       }
 856       case Toolkit::DevelTextLabel::Property::ANCHOR_COLOR:
 857       {
 858         value = impl.mController->GetAnchorColor();
 859         break;
 860       }
 861       case Toolkit::DevelTextLabel::Property::ANCHOR_CLICKED_COLOR:
 862       {
 863         value = impl.mController->GetAnchorClickedColor();
 864         break;
 865       }
 866     }
 867   }
 868
 869   return value;
 870 }
 871
 872 bool TextLabel::DoConnectSignal(BaseObject* object, ConnectionTrackerInterface* tracker, const std::string& signalName, FunctorDelegate* functor)
 873 {
 874   Dali::BaseHandle handle(object);
 875
 876   bool               connected(true);
 877   Toolkit::TextLabel label = Toolkit::TextLabel::DownCast(handle);
 878
 879   if(0 == strcmp(signalName.c_str(), SIGNAL_ANCHOR_CLICKED))
 880   {
 881     if(label)
 882     {
 883       Internal::TextLabel& labelImpl(GetImpl(label));
 884       labelImpl.AnchorClickedSignal().Connect(tracker, functor);
 885     }
 886   }
 887   else if(0 == strcmp(signalName.c_str(), SIGNAL_TEXT_FIT_CHANGED))
 888   {
 889     if(label)
 890     {
 891       Internal::TextLabel& labelImpl(GetImpl(label));
 892       labelImpl.TextFitChangedSignal().Connect(tracker, functor);
 893     }
 894   }
 895   else
 896   {
 897     // signalName does not match any signal
 898     connected = false;
 899   }
 900
 901   return connected;
 902 }
 903
 904 DevelTextLabel::AnchorClickedSignalType& TextLabel::AnchorClickedSignal()
 905 {
 906   return mAnchorClickedSignal;
 907 }
 908
 909 DevelTextLabel::TextFitChangedSignalType& TextLabel::TextFitChangedSignal()
 910 {
 911   return mTextFitChangedSignal;
 912 }
 913
 914 void TextLabel::OnInitialize()
 915 {
 916   Actor self = Self();
 917
 918   Property::Map propertyMap;
 919   propertyMap.Add(Toolkit::Visual::Property::TYPE, Toolkit::Visual::TEXT);
 920
 921   mVisual = Toolkit::VisualFactory::Get().CreateVisual(propertyMap);
 922   DevelControl::RegisterVisual(*this, Toolkit::TextLabel::Property::TEXT, mVisual);
 923
 924   TextVisual::SetAnimatableTextColorProperty(mVisual, Toolkit::TextLabel::Property::TEXT_COLOR);
 925
 926   mController = TextVisual::GetController(mVisual);
 927   DALI_ASSERT_DEBUG(mController && "Invalid Text Controller")
 928
 929   mController->SetControlInterface(this);
 930   mController->SetAnchorControlInterface(this);
 931
 932   // Use height-for-width negotiation by default
 933   self.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH);
 934   self.SetResizePolicy(ResizePolicy::DIMENSION_DEPENDENCY, Dimension::HEIGHT);
 935
 936   // Enable the text ellipsis.
 937   mController->SetTextElideEnabled(true); // If false then text larger than control will overflow
 938
 939   // Sets layoutDirection value
 940   Dali::Stage                 stage           = Dali::Stage::GetCurrent();
 941   Dali::LayoutDirection::Type layoutDirection = static_cast<Dali::LayoutDirection::Type>(stage.GetRootLayer().GetProperty(Dali::Actor::Property::LAYOUT_DIRECTION).Get<int>());
 942   mController->SetLayoutDirection(layoutDirection);
 943
 944   self.LayoutDirectionChangedSignal().Connect(this, &TextLabel::OnLayoutDirectionChanged);
 945
 946   Layout::Engine& engine = mController->GetLayoutEngine();
 947   engine.SetCursorWidth(0u); // Do not layout space for the cursor.
 948
 949   // Accessibility
 950   self.SetProperty(DevelControl::Property::ACCESSIBILITY_ROLE, Dali::Accessibility::Role::LABEL);
 951   self.SetProperty(DevelControl::Property::ACCESSIBILITY_HIGHLIGHTABLE, true);
 952
 953   Accessibility::Bridge::EnabledSignal().Connect(this, &TextLabel::OnAccessibilityStatusChanged);
 954   Accessibility::Bridge::DisabledSignal().Connect(this, &TextLabel::OnAccessibilityStatusChanged);
 955 }
 956
 957 DevelControl::ControlAccessible* TextLabel::CreateAccessibleObject()
 958 {
 959   return new TextLabelAccessible(Self());
 960 }
 961
 962 void TextLabel::OnStyleChange(Toolkit::StyleManager styleManager, StyleChange::Type change)
 963 {
 964   DALI_LOG_INFO(gLogFilter, Debug::Verbose, "TextLabel::OnStyleChange\n");
 965
 966   switch(change)
 967   {
 968     case StyleChange::DEFAULT_FONT_CHANGE:
 969     {
 970       // Property system did not set the font so should update it.
 971       const std::string& newFont = GetImpl(styleManager).GetDefaultFontFamily();
 972       DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel::OnStyleChange StyleChange::DEFAULT_FONT_CHANGE newFont(%s)\n", newFont.c_str());
 973       mController->UpdateAfterFontChange(newFont);
 974       RelayoutRequest();
 975       break;
 976     }
 977     case StyleChange::DEFAULT_FONT_SIZE_CHANGE:
 978     {
 979       GetImpl(styleManager).ApplyThemeStyle(Toolkit::Control(GetOwner()));
 980       RelayoutRequest();
 981       break;
 982     }
 983     case StyleChange::THEME_CHANGE:
 984     {
 985       // Nothing to do, let control base class handle this
 986       break;
 987     }
 988   }
 989
 990   // Up call to Control
 991   Control::OnStyleChange(styleManager, change);
 992 }
 993
 994 void TextLabel::OnTap(const TapGesture& gesture)
 995 {
 996   DALI_LOG_INFO(gLogFilter, Debug::Verbose, "TextLabel::OnTap %p\n", mController.Get());
 997
 998   // Deliver the tap before the focus event to controller; this allows us to detect when focus is gained due to tap-gestures
 999   Extents padding;
1000   padding                   = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
1001   const Vector2& localPoint = gesture.GetLocalPoint();
1002   mController->AnchorEvent(localPoint.x - padding.start, localPoint.y - padding.top);
1003 }
1004
1005 void TextLabel::AnchorClicked(const std::string& href)
1006 {
1007   Dali::Toolkit::TextLabel handle(GetOwner());
1008   mAnchorClickedSignal.Emit(handle, href.c_str(), href.length());
1009 }
1010
1011 Vector3 TextLabel::GetNaturalSize()
1012 {
1013   Extents padding;
1014   padding = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
1015
1016   Vector3 naturalSize = mController->GetNaturalSize();
1017   naturalSize.width += (padding.start + padding.end);
1018   naturalSize.height += (padding.top + padding.bottom);
1019
1020   return naturalSize;
1021 }
1022
1023 float TextLabel::GetHeightForWidth(float width)
1024 {
1025   Extents padding;
1026   padding = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
1027
1028   return mController->GetHeightForWidth(width) + padding.top + padding.bottom;
1029 }
1030
1031 void TextLabel::OnPropertySet(Property::Index index, const Property::Value& propertyValue)
1032 {
1033   DALI_LOG_INFO(gLogFilter, Debug::Verbose, "TextLabel::OnPropertySet index[%d]\n", index);
1034
1035   switch(index)
1036   {
1037     case Toolkit::TextLabel::Property::TEXT_COLOR:
1038     {
1039       const Vector4& textColor = propertyValue.Get<Vector4>();
1040       if(mController->GetDefaultColor() != textColor)
1041       {
1042         mController->SetDefaultColor(textColor);
1043         mTextUpdateNeeded = true;
1044       }
1045       break;
1046     }
1047     case Toolkit::TextLabel::Property::TEXT:
1048     case Toolkit::TextLabel::Property::ENABLE_MARKUP:
1049     {
1050       CommonTextUtils::SynchronizeTextAnchorsInParent(Self(), mController, mAnchorActors);
1051       break;
1052     }
1053     default:
1054     {
1055       Control::OnPropertySet(index, propertyValue); // up call to control for non-handled properties
1056       break;
1057     }
1058   }
1059 }
1060
1061 void TextLabel::OnSceneConnection(int depth)
1062 {
1063   if(mController->IsAutoScrollEnabled() || mLastAutoScrollEnabled)
1064   {
1065     mController->SetAutoScrollEnabled(true);
1066   }
1067   Control::OnSceneConnection(depth);
1068 }
1069
1070 void TextLabel::OnSceneDisconnection()
1071 {
1072   if(mTextScroller)
1073   {
1074     if(mLastAutoScrollEnabled && !mController->IsAutoScrollEnabled())
1075     {
1076       mLastAutoScrollEnabled = false;
1077     }
1078
1079     const Toolkit::TextLabel::AutoScrollStopMode::Type stopMode = mTextScroller->GetStopMode();
1080     mTextScroller->SetStopMode(Toolkit::TextLabel::AutoScrollStopMode::IMMEDIATE);
1081     mTextScroller->StopScrolling();
1082     mTextScroller->SetStopMode(stopMode);
1083   }
1084   Control::OnSceneDisconnection();
1085 }
1086
1087 void TextLabel::OnRelayout(const Vector2& size, RelayoutContainer& container)
1088 {
1089   DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel::OnRelayout\n");
1090
1091   Actor self = Self();
1092
1093   Extents padding;
1094   padding = self.GetProperty<Extents>(Toolkit::Control::Property::PADDING);
1095
1096   Vector2 contentSize(size.x - (padding.start + padding.end), size.y - (padding.top + padding.bottom));
1097
1098   if(mController->IsTextFitArrayEnabled())
1099   {
1100     mController->FitArrayPointSizeforLayout(contentSize);
1101     mController->SetTextFitContentSize(contentSize);
1102   }
1103   else if(mController->IsTextFitEnabled())
1104   {
1105     mController->FitPointSizeforLayout(contentSize);
1106     mController->SetTextFitContentSize(contentSize);
1107   }
1108
1109   // Support Right-To-Left
1110   Dali::LayoutDirection::Type layoutDirection = mController->GetLayoutDirection(self);
1111
1112   const Text::Controller::UpdateTextType updateTextType = mController->Relayout(contentSize, layoutDirection);
1113
1114   if((Text::Controller::NONE_UPDATED != (Text::Controller::MODEL_UPDATED & updateTextType)) || mTextUpdateNeeded)
1115   {
1116     DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel::OnRelayout IsAutoScrollEnabled[%s] [%p]\n", (mController->IsAutoScrollEnabled()) ? "true" : "false", this);
1117
1118     // Update the visual
1119     TextVisual::EnableRendererUpdate(mVisual);
1120
1121     // Support Right-To-Left of padding
1122     if(Dali::LayoutDirection::RIGHT_TO_LEFT == layoutDirection)
1123     {
1124       std::swap(padding.start, padding.end);
1125     }
1126
1127     // Calculate the size of the visual that can fit the text
1128     Size layoutSize = mController->GetTextModel()->GetLayoutSize();
1129     layoutSize.x    = contentSize.x;
1130
1131     const Vector2& shadowOffset = mController->GetTextModel()->GetShadowOffset();
1132     if(shadowOffset.y > Math::MACHINE_EPSILON_1)
1133     {
1134       layoutSize.y += shadowOffset.y;
1135     }
1136
1137     float outlineWidth = mController->GetTextModel()->GetOutlineWidth();
1138     layoutSize.y += outlineWidth * 2.0f;
1139     layoutSize.y = std::min(layoutSize.y, contentSize.y);
1140
1141     // Calculate the offset for vertical alignment only, as the layout engine will do the horizontal alignment.
1142     Vector2 alignmentOffset;
1143     alignmentOffset.x = 0.0f;
1144     alignmentOffset.y = (contentSize.y - layoutSize.y) * VERTICAL_ALIGNMENT_TABLE[mController->GetVerticalAlignment()];
1145
1146     const int maxTextureSize = Dali::GetMaxTextureSize();
1147     if(layoutSize.width > maxTextureSize)
1148     {
1149       DALI_LOG_WARNING("layoutSize(%f) > maxTextureSize(%d): To guarantee the behavior of Texture::New, layoutSize must not be bigger than maxTextureSize\n", layoutSize.width, maxTextureSize);
1150       layoutSize.width = maxTextureSize;
1151     }
1152
1153     // This affects font rendering quality.
1154     // It need to be integerized.
1155     Vector2 visualTransformOffset;
1156     visualTransformOffset.x = roundf(padding.start + alignmentOffset.x);
1157     visualTransformOffset.y = roundf(padding.top + alignmentOffset.y);
1158
1159     Property::Map visualTransform;
1160     visualTransform.Add(Toolkit::Visual::Transform::Property::SIZE, layoutSize)
1161       .Add(Toolkit::Visual::Transform::Property::SIZE_POLICY, Vector2(Toolkit::Visual::Transform::Policy::ABSOLUTE, Toolkit::Visual::Transform::Policy::ABSOLUTE))
1162       .Add(Toolkit::Visual::Transform::Property::OFFSET, visualTransformOffset)
1163       .Add(Toolkit::Visual::Transform::Property::OFFSET_POLICY, Vector2(Toolkit::Visual::Transform::Policy::ABSOLUTE, Toolkit::Visual::Transform::Policy::ABSOLUTE))
1164       .Add(Toolkit::Visual::Transform::Property::ORIGIN, Toolkit::Align::TOP_BEGIN)
1165       .Add(Toolkit::Visual::Transform::Property::ANCHOR_POINT, Toolkit::Align::TOP_BEGIN);
1166     mVisual.SetTransformAndSize(visualTransform, size);
1167
1168     if(mController->IsAutoScrollEnabled())
1169     {
1170       SetUpAutoScrolling();
1171     }
1172
1173     mTextUpdateNeeded = false;
1174   }
1175
1176   if(mController->IsTextFitChanged())
1177   {
1178     EmitTextFitChangedSignal();
1179     mController->SetTextFitChanged(false);
1180   }
1181 }
1182
1183 void TextLabel::RequestTextRelayout()
1184 {
1185   RelayoutRequest();
1186   // Signal that a Relayout may be needed
1187 }
1188
1189 void TextLabel::SetUpAutoScrolling()
1190 {
1191   const Size&                    controlSize     = mController->GetView().GetControlSize();
1192   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.
1193   const Text::CharacterDirection direction       = mController->GetAutoScrollDirection();
1194
1195   DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel::SetUpAutoScrolling textNaturalSize[%f,%f] controlSize[%f,%f]\n", textNaturalSize.x, textNaturalSize.y, controlSize.x, controlSize.y);
1196
1197   if(!mTextScroller)
1198   {
1199     DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel::SetUpAutoScrolling Creating default TextScoller\n");
1200
1201     // If speed, loopCount or gap not set via property system then will need to create a TextScroller with defaults
1202     mTextScroller = Text::TextScroller::New(*this);
1203   }
1204
1205   // Calculate the actual gap before scrolling wraps.
1206   int     textPadding = std::max(controlSize.x - textNaturalSize.x, 0.0f);
1207   float   wrapGap     = std::max(mTextScroller->GetGap(), textPadding);
1208   Vector2 textureSize = textNaturalSize + Vector2(wrapGap, 0.0f); // Add the gap as a part of the texture
1209
1210   // Create a texture of the text for scrolling
1211   Size      verifiedSize   = textureSize;
1212   const int maxTextureSize = Dali::GetMaxTextureSize();
1213
1214   //if the texture size width exceed maxTextureSize, modify the visual model size and enabled the ellipsis
1215   bool actualellipsis = mController->IsTextElideEnabled();
1216   if(verifiedSize.width > maxTextureSize)
1217   {
1218     verifiedSize.width = maxTextureSize;
1219     if(textNaturalSize.width > maxTextureSize)
1220     {
1221       mController->SetTextElideEnabled(true);
1222       mController->SetAutoScrollMaxTextureExceeded(true);
1223     }
1224     GetHeightForWidth(maxTextureSize);
1225     wrapGap = std::max(maxTextureSize - textNaturalSize.width, 0.0f);
1226   }
1227
1228   Text::TypesetterPtr typesetter = Text::Typesetter::New(mController->GetTextModel());
1229
1230   PixelData data    = typesetter->Render(verifiedSize, mController->GetTextDirection(), Text::Typesetter::RENDER_TEXT_AND_STYLES, true, Pixel::RGBA8888); // ignore the horizontal alignment
1231   Texture   texture = Texture::New(Dali::TextureType::TEXTURE_2D,
1232                                  data.GetPixelFormat(),
1233                                  data.GetWidth(),
1234                                  data.GetHeight());
1235   texture.Upload(data);
1236
1237   TextureSet textureSet = TextureSet::New();
1238   textureSet.SetTexture(0u, texture);
1239
1240   // Filter mode needs to be set to linear to produce better quality while scaling.
1241   Sampler sampler = Sampler::New();
1242   sampler.SetFilterMode(FilterMode::LINEAR, FilterMode::LINEAR);
1243   sampler.SetWrapMode(Dali::WrapMode::DEFAULT, Dali::WrapMode::REPEAT, Dali::WrapMode::DEFAULT); // Wrap the texture in the x direction
1244   textureSet.SetSampler(0u, sampler);
1245
1246   // Set parameters for scrolling
1247   Renderer renderer = static_cast<Internal::Visual::Base&>(GetImplementation(mVisual)).GetRenderer();
1248   mTextScroller->SetParameters(Self(), renderer, textureSet, controlSize, verifiedSize, wrapGap, direction, mController->GetHorizontalAlignment(), mController->GetVerticalAlignment());
1249   mController->SetTextElideEnabled(actualellipsis);
1250   mController->SetAutoScrollMaxTextureExceeded(false);
1251 }
1252
1253 void TextLabel::ScrollingFinished()
1254 {
1255   // Pure Virtual from TextScroller Interface
1256   DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel::ScrollingFinished\n");
1257
1258   if(mController->IsAutoScrollEnabled() || !mController->IsMultiLineEnabled())
1259   {
1260     mController->SetAutoScrollEnabled(false);
1261     RequestTextRelayout();
1262   }
1263 }
1264
1265 void TextLabel::OnLayoutDirectionChanged(Actor actor, LayoutDirection::Type type)
1266 {
1267   mController->ChangedLayoutDirection();
1268 }
1269
1270 void TextLabel::EmitTextFitChangedSignal()
1271 {
1272   Dali::Toolkit::TextLabel handle(GetOwner());
1273   mTextFitChangedSignal.Emit(handle);
1274 }
1275
1276 void TextLabel::OnAccessibilityStatusChanged()
1277 {
1278   CommonTextUtils::SynchronizeTextAnchorsInParent(Self(), mController, mAnchorActors);
1279 }
1280
1281 TextLabel::TextLabel(ControlBehaviour additionalBehaviour)
1282 : Control(ControlBehaviour(CONTROL_BEHAVIOUR_DEFAULT | additionalBehaviour)),
1283   mRenderingBackend(DEFAULT_RENDERING_BACKEND),
1284   mTextUpdateNeeded(false),
1285   mLastAutoScrollEnabled(false)
1286 {
1287 }
1288
1289 TextLabel::~TextLabel()
1290 {
1291 }
1292
1293 Vector<Vector2> TextLabel::GetTextSize(const uint32_t startIndex, const uint32_t endIndex) const
1294 {
1295   return mController->GetTextSize(startIndex, endIndex);
1296 }
1297
1298 Vector<Vector2> TextLabel::GetTextPosition(const uint32_t startIndex, const uint32_t endIndex) const
1299 {
1300   return mController->GetTextPosition(startIndex, endIndex);
1301 }
1302
1303 Rect<float> TextLabel::GetLineBoundingRectangle(const uint32_t lineIndex) const
1304 {
1305   return mController->GetLineBoundingRectangle(lineIndex);
1306 }
1307
1308 Rect<float> TextLabel::GetCharacterBoundingRectangle(const uint32_t charIndex) const
1309 {
1310   return mController->GetCharacterBoundingRectangle(charIndex);
1311 }
1312
1313 int TextLabel::GetCharacterIndexAtPosition(float visualX, float visualY) const
1314 {
1315   return mController->GetCharacterIndexAtPosition(visualX, visualY);
1316 }
1317
1318 Rect<> TextLabel::GetTextBoundingRectangle(uint32_t startIndex, uint32_t endIndex) const
1319 {
1320   return mController->GetTextBoundingRectangle(startIndex, endIndex);
1321 }
1322
1323 void TextLabel::SetSpannedText(const Text::Spanned& spannedText)
1324 {
1325   mController->SetSpannedText(spannedText);
1326 }
1327
1328 void TextLabel::SetTextFitArray(const bool enable, std::vector<Toolkit::DevelTextLabel::FitOption>& fitOptions)
1329 {
1330   if(!enable)
1331   {
1332     // If TextFitArray is disabled, MinLineSize shoud be restored to its original size.
1333     mController->SetDefaultLineSize(mController->GetCurrentLineSize());
1334   }
1335   mController->SetTextFitArrayEnabled(enable);
1336   mController->SetTextFitArray(fitOptions);
1337 }
1338
1339 std::vector<Toolkit::DevelTextLabel::FitOption>& TextLabel::GetTextFitArray()
1340 {
1341   return mController->GetTextFitArray();
1342 }
1343
1344 bool TextLabel::IsTextFitArrayEnabled() const
1345 {
1346   return mController->IsTextFitArrayEnabled();
1347 }
1348
1349 std::string TextLabel::TextLabelAccessible::GetNameRaw() const
1350 {
1351   return GetWholeText();
1352 }
1353
1354 Property::Index TextLabel::TextLabelAccessible::GetNamePropertyIndex()
1355 {
1356   return Toolkit::TextLabel::Property::TEXT;
1357 }
1358
1359 const std::vector<Toolkit::TextAnchor>& TextLabel::TextLabelAccessible::GetTextAnchors() const
1360 {
1361   auto self = Toolkit::TextLabel::DownCast(Self());
1362
1363   return Toolkit::GetImpl(self).mAnchorActors;
1364 }
1365
1366 Toolkit::Text::ControllerPtr TextLabel::TextLabelAccessible::GetTextController() const
1367 {
1368   auto self = Toolkit::TextLabel::DownCast(Self());
1369
1370   return Toolkit::GetImpl(self).GetTextController();
1371 }
1372
1373 } // namespace Internal
1374
1375 } // namespace Toolkit
1376
1377 } // namespace Dali