Merge "Fixed SVACE error in WebView" into devel/master
[platform/core/uifw/dali-toolkit.git] / dali-toolkit / internal / controls / text-controls / text-label-impl.cpp
1 /*
2  * Copyright (c) 2018 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/public-api/object/type-registry-helper.h>
23 #include <dali/devel-api/object/property-helper-devel.h>
24 #include <dali/devel-api/adaptor-framework/image-loading.h>
25 #include <dali/integration-api/debug.h>
26
27 // INTERNAL INCLUDES
28 #include <dali-toolkit/public-api/text/rendering-backend.h>
29 #include <dali-toolkit/public-api/text/text-enumerations.h>
30 #include <dali-toolkit/devel-api/controls/control-depth-index-ranges.h>
31 #include <dali-toolkit/internal/text/property-string-parser.h>
32 #include <dali-toolkit/internal/text/rendering/text-backend.h>
33 #include <dali-toolkit/internal/text/text-effects-style.h>
34 #include <dali-toolkit/internal/text/text-font-style.h>
35 #include <dali-toolkit/internal/text/text-view.h>
36 #include <dali-toolkit/internal/text/text-definitions.h>
37 #include <dali-toolkit/internal/styling/style-manager-impl.h>
38
39 #include <dali-toolkit/public-api/align-enumerations.h>
40 #include <dali-toolkit/internal/text/text-enumerations-impl.h>
41 #include <dali-toolkit/devel-api/controls/control-devel.h>
42 #include <dali-toolkit/devel-api/visual-factory/visual-base.h>
43 #include <dali-toolkit/public-api/visuals/text-visual-properties.h>
44 #include <dali-toolkit/public-api/visuals/visual-properties.h>
45 #include <dali-toolkit/devel-api/visual-factory/visual-factory.h>
46
47 #include <dali-toolkit/devel-api/controls/text-controls/text-label-devel.h>
48
49 using namespace Dali::Toolkit::Text;
50
51 namespace Dali
52 {
53
54 namespace Toolkit
55 {
56
57 namespace Internal
58 {
59
60 namespace
61 {
62   const unsigned int DEFAULT_RENDERING_BACKEND = Dali::Toolkit::Text::DEFAULT_RENDERING_BACKEND;
63
64   /**
65    * @brief How the text visual should be aligned vertically inside the control.
66    *
67    * 0.0f aligns the text to the top, 0.5f aligns the text to the center, 1.0f aligns the text to the bottom.
68    * The alignment depends on the alignment value of the text label (Use Text::VerticalAlignment enumerations).
69    */
70   const float VERTICAL_ALIGNMENT_TABLE[ Text::VerticalAlignment::BOTTOM + 1 ] =
71   {
72     0.0f,  // VerticalAlignment::TOP
73     0.5f,  // VerticalAlignment::CENTER
74     1.0f   // VerticalAlignment::BOTTOM
75   };
76 }
77
78 namespace
79 {
80
81 #if defined ( DEBUG_ENABLED )
82   Debug::Filter* gLogFilter = Debug::Filter::New(Debug::NoLogging, true, "LOG_TEXT_CONTROLS");
83 #endif
84
85 const Scripting::StringEnum AUTO_SCROLL_STOP_MODE_TABLE[] =
86 {
87   { "IMMEDIATE", Toolkit::TextLabel::AutoScrollStopMode::IMMEDIATE },
88   { "FINISH_LOOP",  Toolkit::TextLabel::AutoScrollStopMode::FINISH_LOOP  },
89 };
90 const unsigned int AUTO_SCROLL_STOP_MODE_TABLE_COUNT = sizeof( AUTO_SCROLL_STOP_MODE_TABLE ) / sizeof( AUTO_SCROLL_STOP_MODE_TABLE[0] );
91
92 // Type registration
93 BaseHandle Create()
94 {
95   return Toolkit::TextLabel::New();
96 }
97
98 // Setup properties, signals and actions using the type-registry.
99 DALI_TYPE_REGISTRATION_BEGIN( Toolkit::TextLabel, Toolkit::Control, Create );
100
101 DALI_PROPERTY_REGISTRATION( Toolkit,           TextLabel, "renderingBackend",          INTEGER, RENDERING_BACKEND          )
102 DALI_PROPERTY_REGISTRATION( Toolkit,           TextLabel, "text",                      STRING,  TEXT                       )
103 DALI_PROPERTY_REGISTRATION( Toolkit,           TextLabel, "fontFamily",                STRING,  FONT_FAMILY                )
104 DALI_PROPERTY_REGISTRATION( Toolkit,           TextLabel, "fontStyle",                 MAP,     FONT_STYLE                 )
105 DALI_PROPERTY_REGISTRATION( Toolkit,           TextLabel, "pointSize",                 FLOAT,   POINT_SIZE                 )
106 DALI_PROPERTY_REGISTRATION( Toolkit,           TextLabel, "multiLine",                 BOOLEAN, MULTI_LINE                 )
107 DALI_PROPERTY_REGISTRATION( Toolkit,           TextLabel, "horizontalAlignment",       STRING,  HORIZONTAL_ALIGNMENT       )
108 DALI_PROPERTY_REGISTRATION( Toolkit,           TextLabel, "verticalAlignment",         STRING,  VERTICAL_ALIGNMENT         )
109 DALI_PROPERTY_REGISTRATION( Toolkit,           TextLabel, "unusedPropertyTextColor",   VECTOR4, UNUSED_PROPERTY_TEXT_COLOR )
110 DALI_PROPERTY_REGISTRATION( Toolkit,           TextLabel, "shadowOffset",              VECTOR2, SHADOW_OFFSET              )
111 DALI_PROPERTY_REGISTRATION( Toolkit,           TextLabel, "shadowColor",               VECTOR4, SHADOW_COLOR               )
112 DALI_PROPERTY_REGISTRATION( Toolkit,           TextLabel, "underlineEnabled",          BOOLEAN, UNDERLINE_ENABLED          )
113 DALI_PROPERTY_REGISTRATION( Toolkit,           TextLabel, "underlineColor",            VECTOR4, UNDERLINE_COLOR            )
114 DALI_PROPERTY_REGISTRATION( Toolkit,           TextLabel, "underlineHeight",           FLOAT,   UNDERLINE_HEIGHT           )
115 DALI_PROPERTY_REGISTRATION( Toolkit,           TextLabel, "enableMarkup",              BOOLEAN, ENABLE_MARKUP              )
116 DALI_PROPERTY_REGISTRATION( Toolkit,           TextLabel, "enableAutoScroll",          BOOLEAN, ENABLE_AUTO_SCROLL         )
117 DALI_PROPERTY_REGISTRATION( Toolkit,           TextLabel, "autoScrollSpeed",           INTEGER, AUTO_SCROLL_SPEED          )
118 DALI_PROPERTY_REGISTRATION( Toolkit,           TextLabel, "autoScrollLoopCount",       INTEGER, AUTO_SCROLL_LOOP_COUNT     )
119 DALI_PROPERTY_REGISTRATION( Toolkit,           TextLabel, "autoScrollGap",             FLOAT,   AUTO_SCROLL_GAP            )
120 DALI_PROPERTY_REGISTRATION( Toolkit,           TextLabel, "lineSpacing",               FLOAT,   LINE_SPACING               )
121 DALI_PROPERTY_REGISTRATION( Toolkit,           TextLabel, "underline",                 MAP,     UNDERLINE                  )
122 DALI_PROPERTY_REGISTRATION( Toolkit,           TextLabel, "shadow",                    MAP,     SHADOW                     )
123 DALI_PROPERTY_REGISTRATION( Toolkit,           TextLabel, "emboss",                    MAP,     EMBOSS                     )
124 DALI_PROPERTY_REGISTRATION( Toolkit,           TextLabel, "outline",                   MAP,     OUTLINE                    )
125 DALI_PROPERTY_REGISTRATION( Toolkit,           TextLabel, "pixelSize",                 FLOAT,   PIXEL_SIZE                 )
126 DALI_PROPERTY_REGISTRATION( Toolkit,           TextLabel, "ellipsis",                  BOOLEAN, ELLIPSIS                   )
127 DALI_PROPERTY_REGISTRATION( Toolkit,           TextLabel, "autoScrollLoopDelay",       FLOAT,   AUTO_SCROLL_LOOP_DELAY     )
128 DALI_PROPERTY_REGISTRATION( Toolkit,           TextLabel, "autoScrollStopMode",        STRING,  AUTO_SCROLL_STOP_MODE      )
129 DALI_PROPERTY_REGISTRATION_READ_ONLY( Toolkit, TextLabel, "lineCount",                 INTEGER, LINE_COUNT                 )
130 DALI_PROPERTY_REGISTRATION( Toolkit,           TextLabel, "lineWrapMode",              INTEGER, LINE_WRAP_MODE             )
131 DALI_DEVEL_PROPERTY_REGISTRATION_READ_ONLY( Toolkit, TextLabel, "textDirection",       INTEGER, TEXT_DIRECTION             )
132 DALI_DEVEL_PROPERTY_REGISTRATION( Toolkit,     TextLabel, "verticalLineAlignment",     INTEGER, VERTICAL_LINE_ALIGNMENT    )
133 DALI_DEVEL_PROPERTY_REGISTRATION( Toolkit,     TextLabel, "textBackground",            MAP,     BACKGROUND                 )
134 DALI_DEVEL_PROPERTY_REGISTRATION( Toolkit,     TextLabel, "ignoreSpacesAfterText",     BOOLEAN, IGNORE_SPACES_AFTER_TEXT   )
135 DALI_DEVEL_PROPERTY_REGISTRATION( Toolkit,     TextLabel, "matchSystemLanguageDirection", BOOLEAN, MATCH_SYSTEM_LANGUAGE_DIRECTION )
136 DALI_ANIMATABLE_PROPERTY_REGISTRATION_WITH_DEFAULT( Toolkit, TextLabel, "textColor",      Color::BLACK,     TEXT_COLOR     )
137 DALI_ANIMATABLE_PROPERTY_COMPONENT_REGISTRATION( Toolkit,    TextLabel, "textColorRed",   TEXT_COLOR_RED,   TEXT_COLOR, 0  )
138 DALI_ANIMATABLE_PROPERTY_COMPONENT_REGISTRATION( Toolkit,    TextLabel, "textColorGreen", TEXT_COLOR_GREEN, TEXT_COLOR, 1  )
139 DALI_ANIMATABLE_PROPERTY_COMPONENT_REGISTRATION( Toolkit,    TextLabel, "textColorBlue",  TEXT_COLOR_BLUE,  TEXT_COLOR, 2  )
140 DALI_ANIMATABLE_PROPERTY_COMPONENT_REGISTRATION( Toolkit,    TextLabel, "textColorAlpha", TEXT_COLOR_ALPHA, TEXT_COLOR, 3  )
141 DALI_TYPE_REGISTRATION_END()
142
143 } // namespace
144
145 Toolkit::TextLabel TextLabel::New()
146 {
147   // Create the implementation, temporarily owned by this handle on stack
148   IntrusivePtr< TextLabel > impl = new TextLabel();
149
150   // Pass ownership to CustomActor handle
151   Toolkit::TextLabel handle( *impl );
152
153   // Second-phase init of the implementation
154   // This can only be done after the CustomActor connection has been made...
155   impl->Initialize();
156
157   return handle;
158 }
159
160 void TextLabel::SetProperty( BaseObject* object, Property::Index index, const Property::Value& value )
161 {
162   Toolkit::TextLabel label = Toolkit::TextLabel::DownCast( Dali::BaseHandle( object ) );
163
164   if( label )
165   {
166     TextLabel& impl( GetImpl( label ) );
167     switch( index )
168     {
169       case Toolkit::TextLabel::Property::RENDERING_BACKEND:
170       {
171         DALI_LOG_WARNING("[%s] Using deprecated Property TextLabel::Property::RENDERING_BACKEND which is no longer supported and will be ignored\n", __FUNCTION__);
172
173         int backend = value.Get< int >();
174
175 #ifndef ENABLE_VECTOR_BASED_TEXT_RENDERING
176         if( Text::RENDERING_VECTOR_BASED == backend )
177         {
178           backend = TextAbstraction::BITMAP_GLYPH; // Fallback to bitmap-based rendering
179         }
180 #endif
181         if( impl.mRenderingBackend != backend )
182         {
183           impl.mRenderingBackend = backend;
184           impl.mTextUpdateNeeded = true;
185
186           if( impl.mController )
187           {
188             // When using the vector-based rendering, the size of the GLyphs are different
189             TextAbstraction::GlyphType glyphType = (Text::RENDERING_VECTOR_BASED == impl.mRenderingBackend) ? TextAbstraction::VECTOR_GLYPH : TextAbstraction::BITMAP_GLYPH;
190             impl.mController->SetGlyphType( glyphType );
191           }
192         }
193         break;
194       }
195       case Toolkit::TextLabel::Property::TEXT:
196       {
197         if( impl.mController )
198         {
199           impl.mController->SetText( value.Get< std::string >() );
200         }
201         break;
202       }
203       case Toolkit::TextLabel::Property::FONT_FAMILY:
204       {
205         if( impl.mController )
206         {
207           const std::string& fontFamily = value.Get< std::string >();
208
209           DALI_LOG_INFO( gLogFilter, Debug::Verbose, "TextLabel::SetProperty Property::FONT_FAMILY newFont(%s)\n", fontFamily.c_str() );
210           impl.mController->SetDefaultFontFamily( fontFamily );
211         }
212         break;
213       }
214       case Toolkit::TextLabel::Property::FONT_STYLE:
215       {
216         SetFontStyleProperty( impl.mController, value, Text::FontStyle::DEFAULT );
217         break;
218       }
219       case Toolkit::TextLabel::Property::POINT_SIZE:
220       {
221         if( impl.mController )
222         {
223           const float pointSize = value.Get< float >();
224
225           if( !Equals( impl.mController->GetDefaultFontSize( Text::Controller::POINT_SIZE ), pointSize ) )
226           {
227             impl.mController->SetDefaultFontSize( pointSize, Text::Controller::POINT_SIZE );
228           }
229         }
230         break;
231       }
232       case Toolkit::TextLabel::Property::MULTI_LINE:
233       {
234         if( impl.mController )
235         {
236           impl.mController->SetMultiLineEnabled( value.Get< bool >() );
237         }
238         break;
239       }
240       case Toolkit::TextLabel::Property::HORIZONTAL_ALIGNMENT:
241       {
242         if( impl.mController )
243         {
244           Text::HorizontalAlignment::Type alignment( static_cast< Text::HorizontalAlignment::Type >( -1 ) ); // Set to invalid value to ensure a valid mode does get set
245           if( Text::GetHorizontalAlignmentEnumeration( value, alignment ) )
246           {
247             impl.mController->SetHorizontalAlignment( alignment );
248           }
249         }
250         break;
251       }
252       case Toolkit::TextLabel::Property::VERTICAL_ALIGNMENT:
253       {
254         if( impl.mController )
255         {
256           Toolkit::Text::VerticalAlignment::Type alignment( static_cast< Text::VerticalAlignment::Type >( -1 ) ); // Set to invalid value to ensure a valid mode does get set
257           if( Text::GetVerticalAlignmentEnumeration( value, alignment ) )
258           {
259             impl.mController->SetVerticalAlignment( alignment );
260           }
261         }
262         break;
263       }
264
265       case Toolkit::TextLabel::Property::UNUSED_PROPERTY_TEXT_COLOR:
266       {
267         label.SetProperty( Toolkit::TextLabel::Property::TEXT_COLOR, value );
268         impl.mTextUpdateNeeded = true;
269         break;
270       }
271
272       case Toolkit::TextLabel::Property::SHADOW_OFFSET:
273       {
274         if( impl.mController )
275         {
276           const Vector2& shadowOffset = value.Get< Vector2 >();
277           if ( impl.mController->GetShadowOffset() != shadowOffset )
278           {
279             impl.mController->SetShadowOffset( shadowOffset );
280             impl.mTextUpdateNeeded = true;
281           }
282         }
283         break;
284       }
285       case Toolkit::TextLabel::Property::SHADOW_COLOR:
286       {
287         if( impl.mController )
288         {
289           const Vector4& shadowColor = value.Get< Vector4 >();
290           if ( impl.mController->GetShadowColor() != shadowColor )
291           {
292             impl.mController->SetShadowColor( shadowColor );
293             impl.mTextUpdateNeeded = true;
294           }
295         }
296         break;
297       }
298       case Toolkit::TextLabel::Property::UNDERLINE_COLOR:
299       {
300         if( impl.mController )
301         {
302           const Vector4& color = value.Get< Vector4 >();
303           if ( impl.mController->GetUnderlineColor() != color )
304           {
305             impl.mController->SetUnderlineColor( color );
306             impl.mTextUpdateNeeded = true;
307           }
308         }
309         break;
310       }
311       case Toolkit::TextLabel::Property::UNDERLINE_ENABLED:
312       {
313         if( impl.mController )
314         {
315           const bool enabled = value.Get< bool >();
316           if ( impl.mController->IsUnderlineEnabled() != enabled )
317           {
318             impl.mController->SetUnderlineEnabled( enabled );
319             impl.mTextUpdateNeeded = true;
320           }
321         }
322         break;
323       }
324
325       case Toolkit::TextLabel::Property::UNDERLINE_HEIGHT:
326       {
327         if( impl.mController )
328         {
329           float height = value.Get< float >();
330           if( fabsf( impl.mController->GetUnderlineHeight() - height ) > Math::MACHINE_EPSILON_1000 )
331           {
332             impl.mController->SetUnderlineHeight( height );
333             impl.mTextUpdateNeeded = true;
334           }
335         }
336         break;
337       }
338       case Toolkit::TextLabel::Property::ENABLE_MARKUP:
339       {
340         if( impl.mController )
341         {
342           const bool enableMarkup = value.Get<bool>();
343           impl.mController->SetMarkupProcessorEnabled( enableMarkup );
344         }
345         break;
346       }
347       case Toolkit::TextLabel::Property::ENABLE_AUTO_SCROLL:
348       {
349         if( impl.mController )
350         {
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() )
354           {
355              // If request is disable (false) and auto scrolling is enabled then need to stop it
356              if ( enableAutoScroll == false )
357              {
358                if( impl.mTextScroller )
359                {
360                  impl.mTextScroller->StopScrolling();
361                }
362              }
363              // If request is enable (true) then start autoscroll as not already running
364              else
365              {
366                impl.mController->SetTextElideEnabled( false );
367                impl.mController->SetAutoScrollEnabled( enableAutoScroll );
368              }
369           }
370         }
371         break;
372       }
373       case Toolkit::TextLabel::Property::AUTO_SCROLL_STOP_MODE:
374       {
375         if( !impl.mTextScroller )
376         {
377           impl.mTextScroller = Text::TextScroller::New( impl );
378         }
379         Toolkit::TextLabel::AutoScrollStopMode::Type stopMode = impl.mTextScroller->GetStopMode();
380         if( Scripting::GetEnumerationProperty< Toolkit::TextLabel::AutoScrollStopMode::Type >( value,
381                                                                                                     AUTO_SCROLL_STOP_MODE_TABLE,
382                                                                                                     AUTO_SCROLL_STOP_MODE_TABLE_COUNT,
383                                                                                                     stopMode ) )
384         {
385             impl.mTextScroller->SetStopMode( stopMode );
386         }
387         break;
388       }
389       case Toolkit::TextLabel::Property::AUTO_SCROLL_SPEED:
390       {
391         if( !impl.mTextScroller )
392         {
393           impl.mTextScroller = Text::TextScroller::New( impl );
394         }
395         impl.mTextScroller->SetSpeed( value.Get<int>() );
396         break;
397       }
398       case Toolkit::TextLabel::Property::AUTO_SCROLL_LOOP_COUNT:
399       {
400         if( !impl.mTextScroller )
401         {
402           impl.mTextScroller = Text::TextScroller::New( impl );
403         }
404         impl.mTextScroller->SetLoopCount( value.Get<int>() );
405         break;
406       }
407       case Toolkit::TextLabel::Property::AUTO_SCROLL_LOOP_DELAY:
408       {
409          if( !impl.mTextScroller )
410         {
411           impl.mTextScroller = Text::TextScroller::New( impl );
412         }
413         impl.mTextScroller->SetLoopDelay( value.Get<float>() );
414         break;
415       }
416       case Toolkit::TextLabel::Property::AUTO_SCROLL_GAP:
417       {
418         if( !impl.mTextScroller )
419         {
420           impl.mTextScroller = Text::TextScroller::New( impl );
421         }
422         impl.mTextScroller->SetGap( value.Get<float>() );
423         break;
424       }
425       case Toolkit::TextLabel::Property::LINE_SPACING:
426       {
427         if( impl.mController )
428         {
429           const float lineSpacing = value.Get<float>();
430
431           // Don't trigger anything if the line spacing didn't change
432           if( impl.mController->SetDefaultLineSpacing( lineSpacing ) )
433           {
434             impl.mTextUpdateNeeded = true;
435           }
436         }
437         break;
438       }
439       case Toolkit::TextLabel::Property::UNDERLINE:
440       {
441         const bool update = SetUnderlineProperties( impl.mController, value, Text::EffectStyle::DEFAULT );
442         if( update )
443         {
444           impl.mTextUpdateNeeded = true;
445         }
446         break;
447       }
448       case Toolkit::TextLabel::Property::SHADOW:
449       {
450         const bool update = SetShadowProperties( impl.mController, value, Text::EffectStyle::DEFAULT );
451         if( update )
452         {
453           impl.mTextUpdateNeeded = true;
454         }
455         break;
456       }
457       case Toolkit::TextLabel::Property::EMBOSS:
458       {
459         const bool update = SetEmbossProperties( impl.mController, value, Text::EffectStyle::DEFAULT );
460         if( update )
461         {
462           impl.mTextUpdateNeeded = true;
463         }
464         break;
465       }
466       case Toolkit::TextLabel::Property::OUTLINE:
467       {
468         const bool update = SetOutlineProperties( impl.mController, value, Text::EffectStyle::DEFAULT );
469         if( update )
470         {
471           impl.mTextUpdateNeeded = true;
472         }
473         break;
474       }
475       case Toolkit::TextLabel::Property::PIXEL_SIZE:
476       {
477         if( impl.mController )
478         {
479           const float pixelSize = value.Get< float >();
480           DALI_LOG_INFO( gLogFilter, Debug::General, "TextLabel %p PIXEL_SIZE %f\n", impl.mController.Get(), pixelSize );
481
482           if( !Equals( impl.mController->GetDefaultFontSize( Text::Controller::PIXEL_SIZE ), pixelSize ) )
483           {
484             impl.mController->SetDefaultFontSize( pixelSize, Text::Controller::PIXEL_SIZE );
485           }
486         }
487         break;
488       }
489       case Toolkit::TextLabel::Property::ELLIPSIS:
490       {
491         if( impl.mController )
492         {
493           const bool ellipsis = value.Get<bool>();
494           DALI_LOG_INFO( gLogFilter, Debug::General, "TextLabel %p ELLIPSIS %d\n", impl.mController.Get(), ellipsis );
495
496           impl.mController->SetTextElideEnabled( ellipsis );
497         }
498         break;
499       }
500       case Toolkit::TextLabel::Property::LINE_WRAP_MODE:
501       {
502         if( impl.mController )
503         {
504           Text::LineWrap::Mode lineWrapMode( static_cast< Text::LineWrap::Mode >( -1 ) ); // Set to invalid value to ensure a valid mode does get set
505           if( GetLineWrapModeEnumeration( value, lineWrapMode ) )
506           {
507             DALI_LOG_INFO( gLogFilter, Debug::General, "TextLabel %p LineWrap::MODE %d\n", impl.mController.Get(), lineWrapMode );
508             impl.mController->SetLineWrapMode( lineWrapMode );
509           }
510         }
511         break;
512       }
513       case Toolkit::DevelTextLabel::Property::VERTICAL_LINE_ALIGNMENT:
514       {
515         if( impl.mController && impl.mController->GetTextModel() )
516         {
517           DevelText::VerticalLineAlignment::Type alignment = static_cast<DevelText::VerticalLineAlignment::Type>( value.Get<int>() );
518
519           impl.mController->SetVerticalLineAlignment( alignment );
520
521           // Property doesn't affect the layout, only Visual must be updated
522           TextVisual::EnableRendererUpdate( impl.mVisual );
523
524           // No need to trigger full re-layout. Instead call UpdateRenderer() directly
525           TextVisual::UpdateRenderer( impl.mVisual );
526         }
527         break;
528       }
529       case Toolkit::DevelTextLabel::Property::BACKGROUND:
530       {
531         const bool update = SetBackgroundProperties( impl.mController, value, Text::EffectStyle::DEFAULT );
532         if( update )
533         {
534           impl.mTextUpdateNeeded = true;
535         }
536         break;
537       }
538       case Toolkit::DevelTextLabel::Property::IGNORE_SPACES_AFTER_TEXT:
539       {
540         impl.mController->SetIgnoreSpacesAfterText(value.Get< bool >());
541         break;
542       }
543       case Toolkit::DevelTextLabel::Property::MATCH_SYSTEM_LANGUAGE_DIRECTION:
544       {
545         impl.mController->SetMatchSystemLanguageDirection(value.Get< bool >());
546         break;
547       }
548     }
549
550     // Request relayout when text update is needed. It's necessary to call it
551     // as changing the property not via UI interaction brings no effect if only
552     // the mTextUpdateNeeded is changed.
553     if( impl.mTextUpdateNeeded )
554     {
555       // need to request relayout as size of text may have changed
556       impl.RequestTextRelayout();
557     }
558   }
559
560
561
562
563 }
564
565 Property::Value TextLabel::GetProperty( BaseObject* object, Property::Index index )
566 {
567   Property::Value value;
568
569   Toolkit::TextLabel label = Toolkit::TextLabel::DownCast( Dali::BaseHandle( object ) );
570
571   if( label )
572   {
573     TextLabel& impl( GetImpl( label ) );
574     switch( index )
575     {
576       case Toolkit::TextLabel::Property::RENDERING_BACKEND:
577       {
578         DALI_LOG_WARNING("[%s] Using deprecated Property TextLabel::Property::RENDERING_BACKEND which is no longer supported and will be ignored\n", __FUNCTION__);
579
580         value = impl.mRenderingBackend;
581         break;
582       }
583       case Toolkit::TextLabel::Property::TEXT:
584       {
585         if( impl.mController )
586         {
587           std::string text;
588           impl.mController->GetText( text );
589           value = text;
590         }
591         break;
592       }
593       case Toolkit::TextLabel::Property::FONT_FAMILY:
594       {
595         if( impl.mController )
596         {
597           value = impl.mController->GetDefaultFontFamily();
598         }
599         break;
600       }
601       case Toolkit::TextLabel::Property::FONT_STYLE:
602       {
603         GetFontStyleProperty( impl.mController, value, Text::FontStyle::DEFAULT );
604         break;
605       }
606       case Toolkit::TextLabel::Property::POINT_SIZE:
607       {
608         if( impl.mController )
609         {
610           value = impl.mController->GetDefaultFontSize( Text::Controller::POINT_SIZE );
611         }
612         break;
613       }
614       case Toolkit::TextLabel::Property::MULTI_LINE:
615       {
616         if( impl.mController )
617         {
618           value = impl.mController->IsMultiLineEnabled();
619         }
620         break;
621       }
622       case Toolkit::TextLabel::Property::HORIZONTAL_ALIGNMENT:
623       {
624         if( impl.mController )
625         {
626           const char* name = Text::GetHorizontalAlignmentString( impl.mController->GetHorizontalAlignment() );
627
628            if ( name )
629            {
630              value = std::string( name );
631            }
632         }
633         break;
634       }
635       case Toolkit::TextLabel::Property::VERTICAL_ALIGNMENT:
636       {
637         if( impl.mController )
638         {
639           const char* name = Text::GetVerticalAlignmentString( impl.mController->GetVerticalAlignment() );
640           if( name )
641           {
642             value = std::string( name );
643           }
644         }
645         break;
646       }
647       case Toolkit::TextLabel::Property::UNUSED_PROPERTY_TEXT_COLOR:
648       {
649         value = label.GetProperty( Toolkit::TextLabel::Property::TEXT_COLOR );
650         break;
651       }
652       case Toolkit::TextLabel::Property::SHADOW_OFFSET:
653       {
654         if ( impl.mController )
655         {
656           value = impl.mController->GetShadowOffset();
657         }
658         break;
659       }
660       case Toolkit::TextLabel::Property::SHADOW_COLOR:
661       {
662         if ( impl.mController )
663         {
664           value = impl.mController->GetShadowColor();
665         }
666         break;
667       }
668       case Toolkit::TextLabel::Property::UNDERLINE_COLOR:
669       {
670         if ( impl.mController )
671         {
672           value = impl.mController->GetUnderlineColor();
673         }
674         break;
675       }
676       case Toolkit::TextLabel::Property::UNDERLINE_ENABLED:
677       {
678         if ( impl.mController )
679         {
680           value = impl.mController->IsUnderlineEnabled();
681         }
682         break;
683       }
684       case Toolkit::TextLabel::Property::UNDERLINE_HEIGHT:
685       {
686         if ( impl.mController )
687         {
688           value = impl.mController->GetUnderlineHeight();
689         }
690         break;
691       }
692       case Toolkit::TextLabel::Property::ENABLE_MARKUP:
693       {
694         if( impl.mController )
695         {
696           value = impl.mController->IsMarkupProcessorEnabled();
697         }
698         break;
699       }
700       case Toolkit::TextLabel::Property::ENABLE_AUTO_SCROLL:
701       {
702         if( impl.mController )
703         {
704           value = impl.mController->IsAutoScrollEnabled();
705         }
706         break;
707       }
708       case Toolkit::TextLabel::Property::AUTO_SCROLL_STOP_MODE:
709       {
710         if( impl.mTextScroller )
711         {
712           const char* mode = Scripting::GetEnumerationName< Toolkit::TextLabel::AutoScrollStopMode::Type >( impl.mTextScroller->GetStopMode(),
713                                                                                                                  AUTO_SCROLL_STOP_MODE_TABLE,
714                                                                                                                  AUTO_SCROLL_STOP_MODE_TABLE_COUNT );
715           if( mode )
716           {
717             value = std::string( mode );
718           }
719         }
720         break;
721       }
722       case Toolkit::TextLabel::Property::AUTO_SCROLL_SPEED:
723       {
724         TextLabel& impl( GetImpl( label ) );
725         if ( impl.mTextScroller )
726         {
727           value = impl.mTextScroller->GetSpeed();
728         }
729         break;
730       }
731       case Toolkit::TextLabel::Property::AUTO_SCROLL_LOOP_COUNT:
732       {
733         if( impl.mController )
734         {
735           TextLabel& impl( GetImpl( label ) );
736           if ( impl.mTextScroller )
737           {
738             value = impl.mTextScroller->GetLoopCount();
739           }
740         }
741         break;
742       }
743       case Toolkit::TextLabel::Property::AUTO_SCROLL_LOOP_DELAY:
744       {
745         if( impl.mController )
746         {
747           TextLabel& impl( GetImpl( label ) );
748           if ( impl.mTextScroller )
749           {
750             value = impl.mTextScroller->GetLoopDelay();
751           }
752         }
753         break;
754       }
755       case Toolkit::TextLabel::Property::AUTO_SCROLL_GAP:
756       {
757         TextLabel& impl( GetImpl( label ) );
758         if ( impl.mTextScroller )
759         {
760           value = impl.mTextScroller->GetGap();
761         }
762         break;
763       }
764       case Toolkit::TextLabel::Property::LINE_SPACING:
765       {
766         if( impl.mController )
767         {
768           value = impl.mController->GetDefaultLineSpacing();
769         }
770         break;
771       }
772       case Toolkit::TextLabel::Property::UNDERLINE:
773       {
774         GetUnderlineProperties( impl.mController, value, Text::EffectStyle::DEFAULT );
775         break;
776       }
777       case Toolkit::TextLabel::Property::SHADOW:
778       {
779         GetShadowProperties( impl.mController, value, Text::EffectStyle::DEFAULT );
780         break;
781       }
782       case Toolkit::TextLabel::Property::EMBOSS:
783       {
784         GetEmbossProperties( impl.mController, value, Text::EffectStyle::DEFAULT );
785         break;
786       }
787       case Toolkit::TextLabel::Property::OUTLINE:
788       {
789         GetOutlineProperties( impl.mController, value, Text::EffectStyle::DEFAULT );
790         break;
791       }
792       case Toolkit::TextLabel::Property::PIXEL_SIZE:
793       {
794         if( impl.mController )
795         {
796           value = impl.mController->GetDefaultFontSize( Text::Controller::PIXEL_SIZE );
797         }
798         break;
799       }
800       case Toolkit::TextLabel::Property::ELLIPSIS:
801       {
802         if( impl.mController )
803         {
804           value = impl.mController->IsTextElideEnabled();
805         }
806         break;
807       }
808       case Toolkit::TextLabel::Property::LINE_WRAP_MODE:
809       {
810         if( impl.mController )
811         {
812           value = impl.mController->GetLineWrapMode();
813         }
814         break;
815       }
816       case Toolkit::TextLabel::Property::LINE_COUNT:
817       {
818         if( impl.mController )
819         {
820           float width = label.GetProperty( Actor::Property::SIZE_WIDTH ).Get<float>();
821           value = impl.mController->GetLineCount( width );
822         }
823         break;
824       }
825       case Toolkit::DevelTextLabel::Property::TEXT_DIRECTION:
826       {
827         if( impl.mController )
828         {
829           value = impl.mController->GetTextDirection();
830         }
831         break;
832       }
833       case Toolkit::DevelTextLabel::Property::VERTICAL_LINE_ALIGNMENT:
834       {
835         if( impl.mController )
836         {
837           value = impl.mController->GetVerticalLineAlignment();
838         }
839         break;
840       }
841       case Toolkit::DevelTextLabel::Property::BACKGROUND:
842       {
843         GetBackgroundProperties( impl.mController, value, Text::EffectStyle::DEFAULT );
844         break;
845       }
846       case Toolkit::DevelTextLabel::Property::IGNORE_SPACES_AFTER_TEXT:
847       {
848         value = impl.mController->IsIgnoreSpacesAfterText();
849         break;
850       }
851       case Toolkit::DevelTextLabel::Property::MATCH_SYSTEM_LANGUAGE_DIRECTION:
852       {
853         value = impl.mController->IsMatchSystemLanguageDirection();
854         break;
855       }
856     }
857   }
858
859   return value;
860 }
861
862 void TextLabel::OnInitialize()
863 {
864   Actor self = Self();
865
866   Property::Map propertyMap;
867   propertyMap.Add( Toolkit::Visual::Property::TYPE, Toolkit::Visual::TEXT );
868
869   mVisual =  Toolkit::VisualFactory::Get().CreateVisual( propertyMap );
870   DevelControl::RegisterVisual( *this, Toolkit::TextLabel::Property::TEXT, mVisual  );
871
872   TextVisual::SetAnimatableTextColorProperty( mVisual, Toolkit::TextLabel::Property::TEXT_COLOR );
873
874   mController = TextVisual::GetController(mVisual);
875   if( mController )
876   {
877     mController->SetControlInterface(this);
878   }
879
880   // Use height-for-width negotiation by default
881   self.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
882   self.SetResizePolicy( ResizePolicy::DIMENSION_DEPENDENCY, Dimension::HEIGHT );
883
884   // Enable the text ellipsis.
885   mController->SetTextElideEnabled( true );   // If false then text larger than control will overflow
886
887   Layout::Engine& engine = mController->GetLayoutEngine();
888   engine.SetCursorWidth( 0u ); // Do not layout space for the cursor.
889 }
890
891 void TextLabel::OnStyleChange( Toolkit::StyleManager styleManager, StyleChange::Type change )
892 {
893   DALI_LOG_INFO( gLogFilter, Debug::Verbose, "TextLabel::OnStyleChange\n");
894
895   switch ( change )
896   {
897     case StyleChange::DEFAULT_FONT_CHANGE:
898     {
899       // Property system did not set the font so should update it.
900       const std::string& newFont = GetImpl( styleManager ).GetDefaultFontFamily();
901       DALI_LOG_INFO( gLogFilter, Debug::General, "TextLabel::OnStyleChange StyleChange::DEFAULT_FONT_CHANGE newFont(%s)\n", newFont.c_str() );
902       mController->UpdateAfterFontChange( newFont );
903       RelayoutRequest();
904       break;
905     }
906     case StyleChange::DEFAULT_FONT_SIZE_CHANGE:
907     {
908       GetImpl( styleManager ).ApplyThemeStyle( Toolkit::Control( GetOwner() ) );
909       RelayoutRequest();
910       break;
911     }
912     case StyleChange::THEME_CHANGE:
913     {
914       // Nothing to do, let control base class handle this
915       break;
916     }
917   }
918
919   // Up call to Control
920   Control::OnStyleChange( styleManager, change );
921 }
922
923 Vector3 TextLabel::GetNaturalSize()
924 {
925   Extents padding;
926   padding = Self().GetProperty<Extents>( Toolkit::Control::Property::PADDING );
927
928   Vector3 naturalSize = mController->GetNaturalSize();
929   naturalSize.width += ( padding.start + padding.end );
930   naturalSize.height += ( padding.top + padding.bottom );
931
932   return naturalSize;
933 }
934
935 float TextLabel::GetHeightForWidth( float width )
936 {
937   Extents padding;
938   padding = Self().GetProperty<Extents>( Toolkit::Control::Property::PADDING );
939
940   return mController->GetHeightForWidth( width ) + padding.top + padding.bottom;
941 }
942
943 void TextLabel::OnPropertySet( Property::Index index, Property::Value propertyValue )
944 {
945   DALI_LOG_INFO( gLogFilter, Debug::Verbose, "TextLabel::OnPropertySet index[%d]\n", index );
946
947   switch ( index )
948   {
949     case Toolkit::TextLabel::Property::TEXT_COLOR:
950     {
951       const Vector4& textColor = propertyValue.Get< Vector4 >();
952       if( mController->GetDefaultColor() != textColor )
953       {
954          mController->SetDefaultColor( textColor );
955          mTextUpdateNeeded = true;
956       }
957       break;
958     }
959     default:
960     {
961       Control::OnPropertySet( index, propertyValue ); // up call to control for non-handled properties
962       break;
963     }
964   }
965 }
966
967 void TextLabel::OnRelayout( const Vector2& size, RelayoutContainer& container )
968 {
969   DALI_LOG_INFO( gLogFilter, Debug::General, "TextLabel::OnRelayout\n" );
970
971   Extents padding;
972   padding = Self().GetProperty<Extents>( Toolkit::Control::Property::PADDING );
973
974   Vector2 contentSize( size.x - ( padding.start + padding.end ), size.y - ( padding.top + padding.bottom ) );
975
976   // Support Right-To-Left
977   Dali::LayoutDirection::Type layoutDirection = static_cast<Dali::LayoutDirection::Type>( Self().GetProperty( Dali::Actor::Property::LAYOUT_DIRECTION ).Get<int>() );
978
979   const Text::Controller::UpdateTextType updateTextType = mController->Relayout( contentSize, layoutDirection );
980
981   if( ( Text::Controller::NONE_UPDATED != ( Text::Controller::MODEL_UPDATED & updateTextType ) )
982      || mTextUpdateNeeded )
983   {
984     DALI_LOG_INFO( gLogFilter, Debug::General, "TextLabel::OnRelayout IsAutoScrollEnabled[%s] [%p]\n", ( mController->IsAutoScrollEnabled())?"true":"false", this );
985
986     // Update the visual
987     TextVisual::EnableRendererUpdate( mVisual );
988
989     // Support Right-To-Left of padding
990     if( Dali::LayoutDirection::RIGHT_TO_LEFT == layoutDirection )
991     {
992       std::swap( padding.start, padding.end );
993     }
994
995     // Calculate the size of the visual that can fit the text
996     Size layoutSize = mController->GetTextModel()->GetLayoutSize();
997     layoutSize.x = contentSize.x;
998
999     const Vector2& shadowOffset = mController->GetTextModel()->GetShadowOffset();
1000     if ( shadowOffset.y > Math::MACHINE_EPSILON_1 )
1001     {
1002       layoutSize.y += shadowOffset.y;
1003     }
1004
1005     float outlineWidth = mController->GetTextModel()->GetOutlineWidth();
1006     layoutSize.y += outlineWidth * 2.0f;
1007     layoutSize.y = std::min( layoutSize.y, contentSize.y );
1008
1009     // Calculate the offset for vertical alignment only, as the layout engine will do the horizontal alignment.
1010     Vector2 alignmentOffset;
1011     alignmentOffset.x = 0.0f;
1012     alignmentOffset.y = ( contentSize.y - layoutSize.y ) * VERTICAL_ALIGNMENT_TABLE[mController->GetVerticalAlignment()];
1013
1014     Property::Map visualTransform;
1015     visualTransform.Add( Toolkit::Visual::Transform::Property::SIZE, layoutSize )
1016                    .Add( Toolkit::Visual::Transform::Property::SIZE_POLICY, Vector2( Toolkit::Visual::Transform::Policy::ABSOLUTE, Toolkit::Visual::Transform::Policy::ABSOLUTE ) )
1017                    .Add( Toolkit::Visual::Transform::Property::OFFSET, Vector2( padding.start, padding.top ) + alignmentOffset )
1018                    .Add( Toolkit::Visual::Transform::Property::OFFSET_POLICY, Vector2( Toolkit::Visual::Transform::Policy::ABSOLUTE, Toolkit::Visual::Transform::Policy::ABSOLUTE ) )
1019                    .Add( Toolkit::Visual::Transform::Property::ORIGIN, Toolkit::Align::TOP_BEGIN )
1020                    .Add( Toolkit::Visual::Transform::Property::ANCHOR_POINT, Toolkit::Align::TOP_BEGIN );
1021     mVisual.SetTransformAndSize( visualTransform, size );
1022
1023     if ( mController->IsAutoScrollEnabled() )
1024     {
1025       SetUpAutoScrolling();
1026     }
1027
1028     mTextUpdateNeeded = false;
1029   }
1030 }
1031
1032 void TextLabel::RequestTextRelayout()
1033 {
1034   RelayoutRequest();
1035   Toolkit::DevelControl::RequestLayout( *this );
1036 }
1037
1038 void TextLabel::SetUpAutoScrolling()
1039 {
1040   const Size& controlSize = mController->GetView().GetControlSize();
1041   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.
1042   const Text::CharacterDirection direction = mController->GetAutoScrollDirection();
1043
1044   DALI_LOG_INFO( gLogFilter, Debug::General, "TextLabel::SetUpAutoScrolling textNaturalSize[%f,%f] controlSize[%f,%f]\n",
1045                  textNaturalSize.x,textNaturalSize.y , controlSize.x,controlSize.y );
1046
1047   if ( !mTextScroller )
1048   {
1049     DALI_LOG_INFO( gLogFilter, Debug::General, "TextLabel::SetUpAutoScrolling Creating default TextScoller\n" );
1050
1051     // If speed, loopCount or gap not set via property system then will need to create a TextScroller with defaults
1052     mTextScroller = Text::TextScroller::New( *this );
1053   }
1054
1055   // Calculate the actual gap before scrolling wraps.
1056   int textPadding = std::max( controlSize.x - textNaturalSize.x, 0.0f );
1057   float wrapGap = std::max( mTextScroller->GetGap(), textPadding );
1058   Vector2 textureSize = textNaturalSize + Vector2(wrapGap, 0.0f); // Add the gap as a part of the texture
1059
1060   // Create a texture of the text for scrolling
1061   Size verifiedSize = textureSize;
1062   const int maxTextureSize = Dali::GetMaxTextureSize();
1063
1064   //if the texture size width exceed maxTextureSize, modify the visual model size and enabled the ellipsis
1065   if( verifiedSize.width > maxTextureSize )
1066   {
1067     verifiedSize.width = maxTextureSize;
1068     if( textNaturalSize.width > maxTextureSize )
1069     {
1070       mController->SetTextElideEnabled( true );
1071     }
1072     GetHeightForWidth( maxTextureSize );
1073     wrapGap = std::max( maxTextureSize - textNaturalSize.width, 0.0f );
1074   }
1075
1076   Text::TypesetterPtr typesetter = Text::Typesetter::New( mController->GetTextModel() );
1077
1078   PixelData data = typesetter->Render( verifiedSize, mController->GetTextDirection(), Text::Typesetter::RENDER_TEXT_AND_STYLES, true, Pixel::RGBA8888 ); // ignore the horizontal alignment
1079   Texture texture = Texture::New( Dali::TextureType::TEXTURE_2D,
1080                                   data.GetPixelFormat(),
1081                                   data.GetWidth(),
1082                                   data.GetHeight() );
1083   texture.Upload( data );
1084
1085   TextureSet textureSet = TextureSet::New();
1086   textureSet.SetTexture( 0u, texture );
1087
1088   // Filter mode needs to be set to linear to produce better quality while scaling.
1089   Sampler sampler = Sampler::New();
1090   sampler.SetFilterMode( FilterMode::LINEAR, FilterMode::LINEAR );
1091   sampler.SetWrapMode( Dali::WrapMode::DEFAULT, Dali::WrapMode::REPEAT, Dali::WrapMode::DEFAULT ); // Wrap the texture in the x direction
1092   textureSet.SetSampler( 0u, sampler );
1093
1094   // Set parameters for scrolling
1095   Renderer renderer = static_cast<Internal::Visual::Base&>( GetImplementation( mVisual ) ).GetRenderer();
1096   mTextScroller->SetParameters( Self(), renderer, textureSet, controlSize, verifiedSize, wrapGap, direction, mController->GetHorizontalAlignment(), mController->GetVerticalAlignment() );
1097 }
1098
1099 void TextLabel::ScrollingFinished()
1100 {
1101   // Pure Virtual from TextScroller Interface
1102   DALI_LOG_INFO( gLogFilter, Debug::General, "TextLabel::ScrollingFinished\n");
1103   mController->SetAutoScrollEnabled( false );
1104   mController->SetTextElideEnabled( true );
1105   RequestTextRelayout();
1106 }
1107
1108 TextLabel::TextLabel()
1109 : Control( ControlBehaviour( CONTROL_BEHAVIOUR_DEFAULT ) ),
1110   mRenderingBackend( DEFAULT_RENDERING_BACKEND ),
1111   mTextUpdateNeeded( false )
1112 {
1113 }
1114
1115 TextLabel::~TextLabel()
1116 {
1117 }
1118
1119 } // namespace Internal
1120
1121 } // namespace Toolkit
1122
1123 } // namespace Dali