Add support for text geometry

[platform/core/uifw/dali-toolkit.git] / dali-toolkit / devel-api / controls / text-controls / text-label-devel.h

diff --git a/dali-toolkit/devel-api/controls/text-controls/text-label-devel.h b/dali-toolkit/devel-api/controls/text-controls/text-label-devel.h
index ac0f30c..17a808f 100644 (file)
--- a/dali-toolkit/devel-api/controls/text-controls/text-label-devel.h
+++ b/dali-toolkit/devel-api/controls/text-controls/text-label-devel.h
@@ -167,6 +167,30 @@ enum Type
 } // namespace Property
 
 /**
+ * @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] textLabel The instance of TextLabel.
+ * @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.
+ */
+DALI_TOOLKIT_API Vector<Vector2> GetTextSize(TextLabel textLabel, const uint32_t startIndex, const uint32_t endIndex);
+
+/**
+ * @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] textLabel The instance of TextLabel.
+ * @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.
+ */
+DALI_TOOLKIT_API Vector<Vector2> GetTextPosition(TextLabel textLabel, const uint32_t startIndex, const uint32_t endIndex);
+
+/**
  * @brief Anchor clicked signal type.
  *
  * @note Signal
@@ -176,6 +200,11 @@ enum Type
 using AnchorClickedSignalType = Signal<void(TextLabel, const char*, uint32_t)>;
 
 /**
+ * @brief TextFit property changed signal type.
+ */
+using TextFitChangedSignalType = Signal<void(TextLabel)>;
+
+/**
  * @brief This signal is emitted when the anchor is clicked.
  *
  * A callback of the following type may be connected:
@@ -187,6 +216,18 @@ using AnchorClickedSignalType = Signal<void(TextLabel, const char*, uint32_t)>;
  */
 DALI_TOOLKIT_API AnchorClickedSignalType& AnchorClickedSignal(TextLabel textLabel);
 
+/**
+ * @brief This signal is emitted when the textfit property is changed.
+ *
+ * A callback of the following type may be connected:
+ * @code
+ *   void YourCallbackName(TextLabel textLabel);
+ * @endcode
+ * @param[in] textLabel The instance of TextLabel.
+ * @return The signal to connect to.
+ */
+DALI_TOOLKIT_API TextFitChangedSignalType& TextFitChangedSignal(TextLabel textLabel);
+
 } // namespace DevelTextLabel
 
 } // namespace Toolkit