Add support for text geometry

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

diff --git a/dali-toolkit/internal/controls/text-controls/text-label-impl.h b/dali-toolkit/internal/controls/text-controls/text-label-impl.h
index d345d21..d776c32 100644 (file)
--- a/dali-toolkit/internal/controls/text-controls/text-label-impl.h
+++ b/dali-toolkit/internal/controls/text-controls/text-label-impl.h
@@ -98,6 +98,28 @@ public:
    */
   Text::ControllerPtr GetTextController();
 
+  /**
+   * @brief Get the rendered size of a specific text range.
+   * if the requested text is at multilines, multiple sizes will be returned for each text located in a separate line.
+   * if a line contains characters with different directions, multiple sizes will be returned for each block of contiguous characters with the same direction.
+   *
+   * @param[in] startIndex start index of the text requested to calculate size for.
+   * @param[in] endIndex end index(included) of the text requested to calculate size for.
+   * @return list of sizes of the reuested text.
+   */
+  Vector<Vector2> GetTextSize(const uint32_t startIndex, const uint32_t endIndex) const;
+
+  /**
+   * @brief Get the top/left rendered position of a specific text range.
+   * if the requested text is at multilines, multiple positions will be returned for each text located in a separate line.
+   * if a line contains characters with different directions, multiple positions will be returned for each block of contiguous characters with the same direction.
+   *
+   * @param[in] startIndex start index of the text requested to get position to.
+   * @param[in] endIndex end index(included) of the text requested to get position to.
+   * @return list of positions of the requested text.
+   */
+  Vector<Vector2> GetTextPosition(const uint32_t startIndex, const uint32_t endIndex) const;
+
 private: // From Control
   /**
    * @copydoc Control::OnInitialize()
@@ -198,6 +220,7 @@ private:
    * @brief Emits TextFitChanged signal.
    */
   void EmitTextFitChangedSignal();
+  void OnAccessibilityStatusChanged();
 
 private: // Data
   Text::ControllerPtr   mController;
@@ -205,8 +228,10 @@ private: // Data
 
   Toolkit::Visual::Base mVisual;
 
+  std::vector<Toolkit::TextAnchor> mAnchorActors;
+
   // Signals
-  Toolkit::DevelTextLabel::AnchorClickedSignalType mAnchorClickedSignal;
+  Toolkit::DevelTextLabel::AnchorClickedSignalType  mAnchorClickedSignal;
   Toolkit::DevelTextLabel::TextFitChangedSignalType mTextFitChangedSignal;
 
   int  mRenderingBackend;
@@ -217,7 +242,8 @@ protected:
    * @brief This structure is to connect TextLabel with Accessible functions.
    */
   struct AccessibleImpl : public DevelControl::AccessibleImpl,
-                          public virtual Dali::Accessibility::Text
+                          public virtual Dali::Accessibility::Text,
+                          public virtual Dali::Accessibility::Hypertext
   {
     using DevelControl::AccessibleImpl::AccessibleImpl;
 
@@ -270,6 +296,21 @@ protected:
      * @copydoc Dali::Accessibility::Text::GetNamePropertyIndex()
      */
     Property::Index GetNamePropertyIndex() override;
+
+    /**
+     * @copydoc Dali::Accessibility::Hypertext::GetLink()
+     */
+    Accessibility::Hyperlink* GetLink(int32_t linkIndex) const override;
+
+    /**
+     * @copydoc Dali::Accessibility::Hypertext::GetLinkIndex()
+     */
+    int32_t GetLinkIndex(int32_t characterOffset) const override;
+
+    /**
+     * @copydoc Dali::Accessibility::Hypertext::GetLinkCount()
+     */
+    int32_t GetLinkCount() const override;
   };
 };