System font family change to update font in TextField

[platform/core/uifw/dali-toolkit.git] / dali-toolkit / internal / text / text-controller-impl.h

diff --git a/dali-toolkit/internal/text/text-controller-impl.h b/dali-toolkit/internal/text/text-controller-impl.h
index 880004a..e60fe37 100644 (file)
--- a/dali-toolkit/internal/text/text-controller-impl.h
+++ b/dali-toolkit/internal/text/text-controller-impl.h
@@ -20,13 +20,14 @@
 
 // EXTERNAL INCLUDES
 #include <dali/devel-api/adaptor-framework/clipboard.h>
-#include <dali/devel-api/adaptor-framework/imf-manager.h>
 #include <dali/devel-api/text-abstraction/font-client.h>
+#include <iostream>
 
 // INTERNAL INCLUDES
 #include <dali-toolkit/internal/text/layouts/layout-engine.h>
 #include <dali-toolkit/internal/text/logical-model-impl.h>
 #include <dali-toolkit/internal/text/text-controller.h>
+#include <dali-toolkit/internal/text/text-view.h>
 #include <dali-toolkit/internal/text/visual-model-impl.h>
 
 namespace Dali
@@ -46,6 +47,7 @@ struct Event
     CURSOR_KEY_EVENT,
     TAP_EVENT,
     PAN_EVENT,
+    LONG_PRESS_EVENT,
     GRAB_HANDLE_EVENT,
     LEFT_SELECTION_HANDLE_EVENT,
     RIGHT_SELECTION_HANDLE_EVENT,
@@ -101,10 +103,12 @@ struct EventData
   enum State
   {
     INACTIVE,
+    INTERRUPTED,
     SELECTING,
     SELECTION_CHANGED,
     EDITING,
     EDITING_WITH_POPUP,
+    EDITING_WITH_GRAB_HANDLE,
     GRAB_HANDLE_PANNING,
     SELECTION_HANDLE_PANNING
   };
@@ -153,6 +157,7 @@ struct EventData
   bool mUpdateRightSelectionPosition    : 1;   ///< True if the visual position of the right selection handle must be recalculated.
   bool mScrollAfterUpdatePosition       : 1;   ///< Whether to scroll after the cursor position is updated.
   bool mScrollAfterDelete               : 1;   ///< Whether to scroll after delete characters.
+  bool mAllTextSelected                 : 1;   ///< True if the selection handles are selecting all the text
 };
 
 struct ModifyEvent
@@ -170,7 +175,9 @@ struct ModifyEvent
 struct FontDefaults
 {
   FontDefaults()
-  : mDefaultPointSize(0.0f),
+  : mDefaultFontFamily(""),
+    mDefaultFontStyle(""),
+    mDefaultPointSize(0.0f),
     mFontId(0u)
   {
   }
@@ -203,14 +210,15 @@ struct Controller::Impl
     mFontClient(),
     mClipboard(),
     mView(),
+    mMetrics(),
     mLayoutEngine(),
     mModifyEvents(),
-    mControlSize(),
     mTextColor( Color::BLACK ),
     mAlignmentOffset(),
     mOperationsPending( NO_OPERATION ),
     mMaximumNumberOfCharacters( 50 ),
-    mRecalculateNaturalSize( true )
+    mRecalculateNaturalSize( true ),
+    mUserDefinedFontFamily( false)
   {
     mLogicalModel = LogicalModel::New();
     mVisualModel  = VisualModel::New();
@@ -220,6 +228,10 @@ struct Controller::Impl
 
     mView.SetVisualModel( mVisualModel );
 
+    // Use this to access FontClient i.e. to get down-scaled Emoji metrics.
+    mMetrics = Metrics::New( mFontClient );
+    mLayoutEngine.SetMetrics( mMetrics );
+
     // Set the text properties to default
     mVisualModel->SetUnderlineEnabled( false );
     mVisualModel->SetUnderlineHeight( 0.0f );
@@ -227,6 +239,7 @@ struct Controller::Impl
 
   ~Impl()
   {
+    delete mFontDefaults;
     delete mEventData;
   }
 
@@ -275,6 +288,12 @@ struct Controller::Impl
     return ( mEventData && mEventData->mIsShowingPlaceholderText );
   }
 
+  bool IsShowingRealText() const
+  {
+    return ( !IsShowingPlaceholderText() &&
+             0u != mLogicalModel->mText.Count() );
+  }
+
   /**
    * @brief Called when placeholder-text is hidden
    */
@@ -327,12 +346,19 @@ struct Controller::Impl
    */
   void GetDefaultFonts( Dali::Vector<FontRun>& fonts, Length numberOfCharacters );
 
+  /**
+   * @brief Retrieve the line height of the default font.
+   */
+  float GetDefaultFontLineHeight();
+
   void OnCursorKeyEvent( const Event& event );
 
   void OnTapEvent( const Event& event );
 
   void OnPanEvent( const Event& event );
 
+  void OnLongPressEvent( const Event& event );
+
   void OnHandleEvent( const Event& event );
 
   void OnSelectEvent( const Event& event );
@@ -341,6 +367,10 @@ struct Controller::Impl
 
   void RetrieveSelection( std::string& selectedText, bool deleteAfterRetreival );
 
+  void ShowClipboard();
+
+  void HideClipboard();
+
   bool CopyStringToClipboard( std::string& source );
 
   void SendSelectionToClipboard( bool deleteAfterSending );
@@ -350,8 +380,9 @@ struct Controller::Impl
   void RepositionSelectionHandles( CharacterIndex selectionStart, CharacterIndex selectionEnd );
   void RepositionSelectionHandles( float visualX, float visualY );
 
-  void ChangeState( EventData::State newState );
+  void SetPopupButtons();
 
+  void ChangeState( EventData::State newState );
   LineIndex GetClosestLine( float y ) const;
 
   void FindSelectionIndices( float visualX, float visualY, CharacterIndex& startIndex, CharacterIndex& endIndex );
@@ -446,16 +477,18 @@ struct Controller::Impl
   FontDefaults* mFontDefaults;             ///< Avoid allocating this when the user does not specify a font.
   EventData* mEventData;                   ///< Avoid allocating everything for text input until EnableTextInput().
   TextAbstraction::FontClient mFontClient; ///< Handle to the font client.
-  Clipboard mClipboard;                   ///< Handle to the system clipboard
+  Clipboard mClipboard;                    ///< Handle to the system clipboard
   View mView;                              ///< The view interface to the rendering back-end.
+  MetricsPtr mMetrics;                     ///< A wrapper around FontClient used to get metrics & potentially down-scaled Emoji metrics.
   LayoutEngine mLayoutEngine;              ///< The layout engine.
   std::vector<ModifyEvent> mModifyEvents;  ///< Temporary stores the text set until the next relayout.
-  Size mControlSize;                       ///< The size of the control.
   Vector4 mTextColor;                      ///< The regular text color
   Vector2 mAlignmentOffset;                ///< Vertical and horizontal offset of the whole text inside the control due to alignment.
   OperationsMask mOperationsPending;       ///< Operations pending to be done to layout the text.
   Length mMaximumNumberOfCharacters;       ///< Maximum number of characters that can be inserted.
+
   bool mRecalculateNaturalSize:1;          ///< Whether the natural size needs to be recalculated.
+  bool mUserDefinedFontFamily:1;           ///< Whether the Font family was Set by the user instead of being left as sytem default
 };
 
 } // namespace Text