Fix cursor's position when there is no text and the width is > 1.
[platform/core/uifw/dali-toolkit.git] / dali-toolkit / internal / text / decorator / text-decorator.cpp
index d75df7b..2f8d0e4 100644 (file)
 
 // EXTERNAL INCLUDES
 #include <dali/integration-api/debug.h>
-#include <dali/public-api/actors/actor.h>
+
 #include <dali/public-api/adaptor-framework/timer.h>
-#include <dali/public-api/actors/image-actor.h>
 #include <dali/public-api/actors/layer.h>
-#include <dali/public-api/animation/constraint.h>
-#include <dali/public-api/common/constants.h>
 #include <dali/public-api/common/stage.h>
-#include <dali/public-api/events/tap-gesture.h>
-#include <dali/public-api/events/tap-gesture-detector.h>
 #include <dali/public-api/events/touch-event.h>
 #include <dali/public-api/events/pan-gesture.h>
-#include <dali/public-api/events/pan-gesture-detector.h>
 #include <dali/public-api/images/resource-image.h>
-#include <dali/public-api/math/rect.h>
-#include <dali/public-api/math/vector2.h>
-#include <dali/public-api/math/vector4.h>
 #include <dali/public-api/object/property-notification.h>
-#include <dali/public-api/signals/connection-tracker.h>
 
-#include <dali/devel-api/object/property-buffer.h>
 #include <dali/devel-api/rendering/geometry.h>
-#include <dali/devel-api/rendering/material.h>
 #include <dali/devel-api/rendering/renderer.h>
-#include <dali/devel-api/rendering/shader.h>
 
 // INTERNAL INCLUDES
-#include <dali-toolkit/public-api/controls/control.h>
 #include <dali-toolkit/public-api/controls/control-depth-index-ranges.h>
-#include <dali-toolkit/public-api/controls/control-impl.h>
-#include <dali-toolkit/public-api/controls/buttons/push-button.h>
 #include <dali-toolkit/public-api/controls/default-controls/solid-color-actor.h>
-#include <dali-toolkit/public-api/controls/text-controls/text-label.h>
-#include <dali-toolkit/devel-api/controls/text-controls/text-selection-popup.h>
 
 #ifdef DEBUG_ENABLED
 #define DECORATOR_DEBUG
@@ -105,8 +87,6 @@ namespace
 {
 
 const char* DEFAULT_GRAB_HANDLE_IMAGE_RELEASED( DALI_IMAGE_DIR "cursor_handler_center.png" );
-const char* DEFAULT_SELECTION_HANDLE_ONE_RELEASED( DALI_IMAGE_DIR "selection_handle_left.png" );
-const char* DEFAULT_SELECTION_HANDLE_TWO_RELEASED( DALI_IMAGE_DIR "selection_handle_right.png" );
 
 const int DEFAULT_POPUP_OFFSET( -100.0f ); // Vertical offset of Popup from cursor or handles position.
 
@@ -127,6 +107,8 @@ const float SCROLL_THRESHOLD = 10.f;
 const float SCROLL_SPEED = 300.f;
 const float SCROLL_DISTANCE = SCROLL_SPEED * SCROLL_TICK_INTERVAL * TO_SECONDS;
 
+const float CURSOR_WIDTH = 1.f;
+
 /**
  * structure to hold coordinates of each quad, which will make up the mesh.
  */
@@ -232,6 +214,7 @@ struct Decorator::Impl : public ConnectionTracker
 
     ImageActor actor;
     Actor grabArea;
+    ImageActor markerActor;
 
     Vector2 position;
     float lineHeight; ///< Not the handle height
@@ -268,11 +251,13 @@ struct Decorator::Impl : public ConnectionTracker
     mActiveCursor( ACTIVE_CURSOR_NONE ),
     mCursorBlinkInterval( CURSOR_BLINK_INTERVAL ),
     mCursorBlinkDuration( 0.0f ),
+    mCursorWidth( CURSOR_WIDTH ),
     mHandleScrolling( HANDLE_TYPE_COUNT ),
     mScrollDirection( SCROLL_NONE ),
     mScrollThreshold( SCROLL_THRESHOLD ),
     mScrollSpeed( SCROLL_SPEED ),
     mScrollDistance( SCROLL_DISTANCE ),
+    mTextDepth( 0u ),
     mActiveCopyPastePopup( false ),
     mCursorBlinkStatus( true ),
     mPrimaryCursorVisible( false ),
@@ -307,7 +292,7 @@ struct Decorator::Impl : public ConnectionTracker
 
         mPrimaryCursor.SetPosition( position.x,
                                     position.y );
-        mPrimaryCursor.SetSize( Size( 1.0f, cursor.cursorHeight ) );
+        mPrimaryCursor.SetSize( Size( mCursorWidth, cursor.cursorHeight ) );
       }
       mPrimaryCursor.SetVisible( mPrimaryCursorVisible );
     }
@@ -319,7 +304,7 @@ struct Decorator::Impl : public ConnectionTracker
       {
         mSecondaryCursor.SetPosition( cursor.position.x,
                                       cursor.position.y );
-        mSecondaryCursor.SetSize( Size( 1.0f, cursor.cursorHeight ) );
+        mSecondaryCursor.SetSize( Size( mCursorWidth, cursor.cursorHeight ) );
       }
       mSecondaryCursor.SetVisible( mSecondaryCursorVisible );
     }
@@ -338,8 +323,8 @@ struct Decorator::Impl : public ConnectionTracker
 
         CreateGrabHandle();
 
-        grabHandle.actor.SetPosition( position.x,
-                                      grabHandle.lineHeight ); // TODO : Fix for multiline.
+        grabHandle.actor.SetPosition( position.x - floor( 0.5f * mCursorWidth ),
+                                      position.y + grabHandle.lineHeight ); // TODO : Fix for multiline.
       }
       grabHandle.actor.SetVisible( isVisible );
     }
@@ -368,13 +353,17 @@ struct Decorator::Impl : public ConnectionTracker
         if( isPrimaryVisible )
         {
           primary.actor.SetPosition( primaryPosition.x,
-                                     primary.lineHeight ); // TODO : Fix for multiline.
+                                     primaryPosition.y + primary.lineHeight ); // TODO : Fix for multiline.
+
+          SetSelectionHandleMarkerSize( primary );
         }
 
         if( isSecondaryVisible )
         {
           secondary.actor.SetPosition( secondaryPosition.x,
-                                       secondary.lineHeight ); // TODO : Fix for multiline.
+                                       secondaryPosition.y + secondary.lineHeight ); // TODO : Fix for multiline.
+
+          SetSelectionHandleMarkerSize( secondary );
         }
       }
       primary.actor.SetVisible( isPrimaryVisible );
@@ -401,18 +390,13 @@ struct Decorator::Impl : public ConnectionTracker
 
     if( mActiveCopyPastePopup )
     {
-      if( !mCopyPastePopup.actor.GetParent() )
-      {
-        mActiveLayer.Add( mCopyPastePopup.actor );
-      }
-
-      mCopyPastePopup.actor.RaiseAbove( mActiveLayer );
+      ShowPopup();
     }
     else
     {
       if( mCopyPastePopup.actor )
       {
-        mCopyPastePopup.actor.Unparent();
+        mCopyPastePopup.actor.HidePopup();
       }
     }
   }
@@ -428,6 +412,22 @@ struct Decorator::Impl : public ConnectionTracker
     DeterminePositionPopup();
   }
 
+  void ShowPopup()
+  {
+    if ( !mCopyPastePopup.actor )
+    {
+      return;
+    }
+
+    if( !mCopyPastePopup.actor.GetParent() )
+    {
+      mActiveLayer.Add( mCopyPastePopup.actor );
+    }
+
+    mCopyPastePopup.actor.RaiseAbove( mActiveLayer );
+    mCopyPastePopup.actor.ShowPopup();
+  }
+
   void DeterminePositionPopup()
   {
     if ( !mActiveCopyPastePopup )
@@ -462,7 +462,6 @@ struct Decorator::Impl : public ConnectionTracker
   void PopupRelayoutComplete( Actor actor )
   {
     // Size negotiation for CopyPastePopup complete so can get the size and constrain position within bounding box.
-    mCopyPastePopup.actor.OnRelayoutSignal().Disconnect( this, &Decorator::Impl::PopupRelayoutComplete  );
 
     DeterminePositionPopup();
   }
@@ -472,7 +471,7 @@ struct Decorator::Impl : public ConnectionTracker
     cursor = CreateSolidColorActor( color );
     cursor.SetSortModifier( DECORATION_DEPTH_INDEX );
     cursor.SetParentOrigin( ParentOrigin::TOP_LEFT ); // Need to set the default parent origin as CreateSolidColorActor() sets a different one.
-    cursor.SetAnchorPoint( AnchorPoint::TOP_CENTER );
+    cursor.SetAnchorPoint( AnchorPoint::TOP_RIGHT );
   }
 
   // Add or Remove cursor(s) from parent
@@ -586,6 +585,15 @@ struct Decorator::Impl : public ConnectionTracker
     mActiveLayer.RaiseToTop();
   }
 
+  void SetSelectionHandleMarkerSize( HandleImpl& handle )
+  {
+    if ( handle.markerActor )
+    {
+      handle.markerActor.SetResizePolicy ( ResizePolicy::FIXED, Dimension::HEIGHT );
+      handle.markerActor.SetSize( 0, handle.lineHeight );
+    }
+  }
+
   void CreateGrabHandle()
   {
     HandleImpl& grabHandle = mHandle[GRAB_HANDLE];
@@ -636,16 +644,32 @@ struct Decorator::Impl : public ConnectionTracker
     }
   }
 
-  void CreateSelectionHandles()
+  void CreateHandleMarker( HandleImpl& handle, Image& image, HandleType handleType )
   {
-    HandleImpl& primary = mHandle[ LEFT_SELECTION_HANDLE ];
-    if( !primary.actor )
+    if ( image)
     {
-      if( !mHandleImages[LEFT_SELECTION_HANDLE][HANDLE_IMAGE_RELEASED] )
+      handle.markerActor = ImageActor::New( image );
+      handle.markerActor.SetColor( mHandleColor );
+      handle.actor.Add( handle.markerActor );
+
+      if ( LEFT_SELECTION_HANDLE == handleType )
+      {
+        handle.markerActor.SetAnchorPoint( AnchorPoint::BOTTOM_RIGHT );
+        handle.markerActor.SetParentOrigin( ParentOrigin::TOP_RIGHT );
+      }
+      else if ( RIGHT_SELECTION_HANDLE == handleType )
       {
-        mHandleImages[LEFT_SELECTION_HANDLE][HANDLE_IMAGE_RELEASED] = ResourceImage::New( DEFAULT_SELECTION_HANDLE_ONE_RELEASED );
+        handle.markerActor.SetAnchorPoint( AnchorPoint::BOTTOM_LEFT );
+        handle.markerActor.SetParentOrigin( ParentOrigin::TOP_LEFT );
       }
+    }
+  }
 
+  void CreateSelectionHandles()
+  {
+    HandleImpl& primary = mHandle[ LEFT_SELECTION_HANDLE ];
+    if( !primary.actor )
+    {
       primary.actor = ImageActor::New( mHandleImages[LEFT_SELECTION_HANDLE][HANDLE_IMAGE_RELEASED] );
 #ifdef DECORATOR_DEBUG
       primary.actor.SetName("SelectionHandleOne");
@@ -669,6 +693,8 @@ struct Decorator::Impl : public ConnectionTracker
       primary.grabArea.TouchedSignal().Connect( this, &Decorator::Impl::OnHandleOneTouched );
 
       primary.actor.Add( primary.grabArea );
+
+      CreateHandleMarker( primary, mHandleImages[LEFT_SELECTION_HANDLE_MARKER][HANDLE_IMAGE_RELEASED], LEFT_SELECTION_HANDLE );
     }
 
     if( !primary.actor.GetParent() )
@@ -679,11 +705,6 @@ struct Decorator::Impl : public ConnectionTracker
     HandleImpl& secondary = mHandle[ RIGHT_SELECTION_HANDLE ];
     if( !secondary.actor )
     {
-      if( !mHandleImages[RIGHT_SELECTION_HANDLE][HANDLE_IMAGE_RELEASED] )
-      {
-        mHandleImages[RIGHT_SELECTION_HANDLE][HANDLE_IMAGE_RELEASED] = ResourceImage::New( DEFAULT_SELECTION_HANDLE_TWO_RELEASED );
-      }
-
       secondary.actor = ImageActor::New( mHandleImages[RIGHT_SELECTION_HANDLE][HANDLE_IMAGE_RELEASED] );
 #ifdef DECORATOR_DEBUG
       secondary.actor.SetName("SelectionHandleTwo");
@@ -707,6 +728,8 @@ struct Decorator::Impl : public ConnectionTracker
       secondary.grabArea.TouchedSignal().Connect( this, &Decorator::Impl::OnHandleTwoTouched );
 
       secondary.actor.Add( secondary.grabArea );
+
+      CreateHandleMarker( secondary, mHandleImages[RIGHT_SELECTION_HANDLE_MARKER][HANDLE_IMAGE_RELEASED], RIGHT_SELECTION_HANDLE  );
     }
 
     if( !secondary.actor.GetParent() )
@@ -804,24 +827,25 @@ struct Decorator::Impl : public ConnectionTracker
         mQuadVertices.SetData( &vertices[ 0 ] );
         mQuadIndices.SetData( &indices[ 0 ] );
 
-        mQuadGeometry = Geometry::New();
-        mQuadGeometry.AddVertexBuffer( mQuadVertices );
-        mQuadGeometry.SetIndexBuffer( mQuadIndices );
-
-        if( mHighlightRenderer )
+        if( !mQuadGeometry )
         {
-          mHighlightRenderer.SetGeometry( mQuadGeometry );
+          mQuadGeometry = Geometry::New();
+          mQuadGeometry.AddVertexBuffer( mQuadVertices );
         }
-        else
+        mQuadGeometry.SetIndexBuffer( mQuadIndices );
+
+        if( !mHighlightRenderer )
         {
           mHighlightRenderer = Dali::Renderer::New( mQuadGeometry, mHighlightMaterial );
           mHighlightActor.AddRenderer( mHighlightRenderer );
         }
-
-        mHighlightActor.SetPosition( mHighlightPosition.x,
-                                     mHighlightPosition.y );
       }
 
+      mHighlightActor.SetPosition( mHighlightPosition.x,
+                                   mHighlightPosition.y );
+
+      mHighlightQuadList.clear();
+
       mHighlightRenderer.SetDepthIndex( mTextDepth - 2u ); // text is rendered at mTextDepth and text's shadow at mTextDepth -1u.
     }
   }
@@ -1148,6 +1172,15 @@ struct Decorator::Impl : public ConnectionTracker
     rightHandle.actor.SetImage( rightFlipped ? mHandleImages[LEFT_SELECTION_HANDLE][rightImageType] : mHandleImages[RIGHT_SELECTION_HANDLE][rightImageType] );
 
     rightHandle.actor.SetAnchorPoint( rightFlipped ? AnchorPoint::TOP_RIGHT : AnchorPoint::TOP_LEFT );
+
+    if ( leftHandle.markerActor )
+    {
+      leftHandle.markerActor.SetImage( leftFlipped ? mHandleImages[RIGHT_SELECTION_HANDLE_MARKER][leftImageType] : mHandleImages[LEFT_SELECTION_HANDLE_MARKER][leftImageType] );
+    }
+    if ( rightHandle.markerActor )
+    {
+      rightHandle.markerActor.SetImage( rightFlipped ? mHandleImages[LEFT_SELECTION_HANDLE_MARKER][rightImageType] : mHandleImages[RIGHT_SELECTION_HANDLE_MARKER][rightImageType] );
+    }
   }
 
   void SetScrollThreshold( float threshold )
@@ -1267,6 +1300,7 @@ struct Decorator::Impl : public ConnectionTracker
   unsigned int        mActiveCursor;
   unsigned int        mCursorBlinkInterval;
   float               mCursorBlinkDuration;
+  float               mCursorWidth;             ///< The width of the cursors in pixels.
   HandleType          mHandleScrolling;         ///< The handle which is scrolling.
   ScrollDirection     mScrollDirection;         ///< The direction of the scroll.
   float               mScrollThreshold;         ///< Defines a square area inside the control, close to the edge. A cursor entering this area will trigger scroll events.
@@ -1394,6 +1428,16 @@ float Decorator::GetCursorBlinkDuration() const
   return mImpl->mCursorBlinkDuration;
 }
 
+void Decorator::SetCursorWidth( int width )
+{
+  mImpl->mCursorWidth = static_cast<float>( width );
+}
+
+int Decorator::GetCursorWidth() const
+{
+  return static_cast<int>( mImpl->mCursorWidth );
+}
+
 /** Handles **/
 
 void Decorator::SetHandleActive( HandleType handleType, bool active )
@@ -1514,19 +1558,17 @@ void Decorator::SetEnabledPopupButtons( TextSelectionPopup::Buttons& enabledButt
 {
    mImpl->mEnabledPopupButtons = enabledButtonsBitMask;
 
-   UnparentAndReset( mImpl->mCopyPastePopup.actor );
-   mImpl->mCopyPastePopup.actor = TextSelectionPopup::New( mImpl->mEnabledPopupButtons,
-                                                           &mImpl->mTextSelectionPopupCallbackInterface );
+   if ( !mImpl->mCopyPastePopup.actor )
+   {
+     mImpl->mCopyPastePopup.actor = TextSelectionPopup::New( &mImpl->mTextSelectionPopupCallbackInterface );
 #ifdef DECORATOR_DEBUG
-   mImpl->mCopyPastePopup.actor.SetName("mCopyPastePopup");
+     mImpl->mCopyPastePopup.actor.SetName("mCopyPastePopup");
 #endif
-   mImpl->mCopyPastePopup.actor.SetAnchorPoint( AnchorPoint::CENTER );
-   mImpl->mCopyPastePopup.actor.OnRelayoutSignal().Connect( mImpl,  &Decorator::Impl::PopupRelayoutComplete  ); // Position popup after size negotiation
-
-   if( mImpl->mActiveLayer )
-   {
-     mImpl->mActiveLayer.Add( mImpl->mCopyPastePopup.actor );
+     mImpl->mCopyPastePopup.actor.SetAnchorPoint( AnchorPoint::CENTER );
+     mImpl->mCopyPastePopup.actor.OnRelayoutSignal().Connect( mImpl,  &Decorator::Impl::PopupRelayoutComplete  ); // Position popup after size negotiation
    }
+
+   mImpl->mCopyPastePopup.actor.EnableButtons( mImpl->mEnabledPopupButtons );
 }
 
 TextSelectionPopup::Buttons& Decorator::GetEnabledPopupButtons()