internal void DrawWithTextSelectionAndCursor(IStylePainter painter, string newText)
{
var keyboardTextEditor = editorEventHandler as KeyboardTextEditorEventHandler;
if (keyboardTextEditor == null)
{
return;
}
keyboardTextEditor.PreDrawCursor(newText);
int cursorIndex = editorEngine.cursorIndex;
int selectIndex = editorEngine.selectIndex;
Rect localPosition = editorEngine.localPosition;
Vector2 scrollOffset = editorEngine.scrollOffset;
IStyle style = this.style;
var textParams = painter.GetDefaultTextParameters(this);
textParams.text = " ";
textParams.wordWrapWidth = 0.0f;
textParams.wordWrap = false;
float lineHeight = painter.ComputeTextHeight(textParams);
float contentWidth = contentRect.width;
Input.compositionCursorPos = editorEngine.graphicalCursorPos - scrollOffset +
new Vector2(localPosition.x, localPosition.y + lineHeight);
Color drawCursorColor = m_CursorColor.GetSpecifiedValueOrDefault(Color.grey);
int selectionEndIndex = string.IsNullOrEmpty(Input.compositionString)
? selectIndex
: cursorIndex + Input.compositionString.Length;
// Draw the background as in VisualElement
painter.DrawBackground(this);
CursorPositionStylePainterParameters cursorParams;
// Draw highlighted section, if any
if (cursorIndex != selectionEndIndex)
{
var painterParams = painter.GetDefaultRectParameters(this);
painterParams.color = selectionColor;
painterParams.border.SetWidth(0.0f);
painterParams.border.SetRadius(0.0f);
int min = cursorIndex < selectionEndIndex ? cursorIndex : selectionEndIndex;
int max = cursorIndex > selectionEndIndex ? cursorIndex : selectionEndIndex;
cursorParams = painter.GetDefaultCursorPositionParameters(this);
cursorParams.text = editorEngine.text;
cursorParams.wordWrapWidth = contentWidth;
cursorParams.cursorIndex = min;
Vector2 minPos = painter.GetCursorPosition(cursorParams);
cursorParams.cursorIndex = max;
Vector2 maxPos = painter.GetCursorPosition(cursorParams);
minPos -= scrollOffset;
maxPos -= scrollOffset;
if (Mathf.Approximately(minPos.y, maxPos.y))
{
painterParams.rect = new Rect(minPos.x, minPos.y, maxPos.x - minPos.x, lineHeight);
painter.DrawRect(painterParams);
}
else
{
// Draw first line
painterParams.rect = new Rect(minPos.x, minPos.y, contentRect.xMax - minPos.x, lineHeight);
painter.DrawRect(painterParams);
var inbetweenHeight = (maxPos.y - minPos.y) - lineHeight;
if (inbetweenHeight > 0f)
{
// Draw all lines in-between
painterParams.rect = new Rect(contentRect.x, minPos.y + lineHeight, contentWidth, inbetweenHeight);
painter.DrawRect(painterParams);
}
// Draw last line if not empty
if (maxPos.x != contentRect.x)
{
painterParams.rect = new Rect(contentRect.x, maxPos.y, maxPos.x, lineHeight);
painter.DrawRect(painterParams);
}
}
}
// Draw the border as in VisualElement
painter.DrawBorder(this);
// Draw the text with the scroll offset
if (!string.IsNullOrEmpty(editorEngine.text) && contentRect.width > 0.0f && contentRect.height > 0.0f)
{
textParams = painter.GetDefaultTextParameters(this);
textParams.rect = new Rect(contentRect.x - scrollOffset.x, contentRect.y - scrollOffset.y, contentRect.width, contentRect.height);
textParams.text = editorEngine.text;
painter.DrawText(textParams);
}
// Draw the cursor
if (cursorIndex == selectionEndIndex && (Font)style.font != null)
{
cursorParams = painter.GetDefaultCursorPositionParameters(this);
cursorParams.text = editorEngine.text;
cursorParams.wordWrapWidth = contentWidth;
cursorParams.cursorIndex = cursorIndex;
Vector2 cursorPosition = painter.GetCursorPosition(cursorParams);
cursorPosition -= scrollOffset;
var painterParams = new RectStylePainterParameters
{
rect = new Rect(cursorPosition.x, cursorPosition.y, 1f, lineHeight),
color = drawCursorColor
};
painter.DrawRect(painterParams);
}
// Draw alternate cursor, if any
if (editorEngine.altCursorPosition != -1)
{
cursorParams = painter.GetDefaultCursorPositionParameters(this);
cursorParams.text = editorEngine.text.Substring(0, editorEngine.altCursorPosition);
cursorParams.wordWrapWidth = contentWidth;
cursorParams.cursorIndex = editorEngine.altCursorPosition;
Vector2 altCursorPosition = painter.GetCursorPosition(cursorParams);
altCursorPosition -= scrollOffset;
var painterParams = new RectStylePainterParameters
{
rect = new Rect(altCursorPosition.x, altCursorPosition.y, 1f, lineHeight),
color = drawCursorColor
};
painter.DrawRect(painterParams);
}
keyboardTextEditor.PostDrawCursor();
}
