IssueNo:https://gitee.com/openharmony/graphic_ui/issues/I4DCTF

Description:Add function DrawEllipsis
Sig:graphic
Feature or Bugfix:Bugfix
Binary Source:No
Signed-off-by: Nwangtiantian <wangtiantian19@huawei.com>

frameworks/common/text.cpp

@@ -183,6 +183,16 @@ void Text::ReMeasureTextWidthInEllipsisMode(const Rect& textRect, const Style& s
         }
     }
 }
+
+void Text::DrawEllipsis(BufferInfo& gfxDstBuffer, LabelLineInfo& labelLine)
+{
+    labelLine.offset.x = 0;
+    labelLine.text = TEXT_ELLIPSIS;
+    labelLine.lineLength = TEXT_ELLIPSIS_DOT_NUM;
+    labelLine.length = TEXT_ELLIPSIS_DOT_NUM;
+    DrawLabel::DrawTextOneLine(gfxDstBuffer, labelLine);
+}
+
 void Text::OnDraw(BufferInfo& gfxDstBuffer,
                   const Rect& invalidatedArea,
                   const Rect& viewOrigRect,
@@ -240,11 +250,7 @@ void Text::Draw(BufferInfo& gfxDstBuffer,
                                     nullptr, baseLine_};
             DrawLabel::DrawTextOneLine(gfxDstBuffer, labelLine);
             if ((i == (lineCount - 1)) && (ellipsisIndex != TEXT_ELLIPSIS_END_INV)) {
-                labelLine.offset.x = 0;
-                labelLine.text = TEXT_ELLIPSIS;
-                labelLine.lineLength = TEXT_ELLIPSIS_DOT_NUM;
-                labelLine.length = TEXT_ELLIPSIS_DOT_NUM;
-                DrawLabel::DrawTextOneLine(gfxDstBuffer, labelLine);
+                DrawEllipsis(gfxDstBuffer, labelLine);
             }
         }
         lineBegin += textLine_[i].lineBytes;

interfaces/kits/common/text.h

@@ -69,6 +69,8 @@ enum UITextLanguageDirect : uint8_t {
     TEXT_DIRECT_MIXED,
 };
 
+struct LabelLineInfo;
+
 /**
  * @brief Represents the base class of <b>Text</b>, providing the text attribute setting and text drawing
  *        capabilities for components that require font display.
@@ -359,6 +361,7 @@ protected:
     uint16_t GetLine(int16_t width, uint8_t letterSpace, uint16_t ellipsisIndex, uint32_t& maxLineBytes);
     int16_t TextPositionY(const Rect& textRect, int16_t textHeight);
     int16_t LineStartPos(const Rect& textRect, uint16_t lineWidth);
+    void DrawEllipsis(BufferInfo& gfxDstBuffer, LabelLineInfo& labelLine);
 
     char* text_;
     uint8_t fontId_;