internal override void DoRepaint(IStylePainter painter)
{
var stylePainter = (IStylePainterInternal)painter;
if (isPasswordField)
{
// if we use system keyboard we will have normal text returned (hiding symbols is done inside os)
// so before drawing make sure we hide them ourselves
string drawText = "".PadRight(text.Length, parentTextField.maskChar);
if (!hasFocus)
{
// We don't have the focus, don't draw the selection and cursor
if (!string.IsNullOrEmpty(drawText) && contentRect.width > 0.0f && contentRect.height > 0.0f)
{
var textParams = TextStylePainterParameters.GetDefault(this, text);
textParams.text = drawText;
stylePainter.DrawText(textParams);
}
}
else
{
DrawWithTextSelectionAndCursor(stylePainter, drawText);
}
}
else
{
base.DoRepaint(painter);
}
}
public void DrawText(string text)
{
if (!string.IsNullOrEmpty(text) && currentElement.contentRect.width > 0.0f && currentElement.contentRect.height > 0.0f)
{
DrawText(TextStylePainterParameters.GetDefault(currentElement, text));
}
}
internal void DrawWithTextSelectionAndCursor(IStylePainterInternal 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;
var scrollOffset = editorEngine.scrollOffset;
float textScaling = TextNative.ComputeTextScaling(worldTransform, GUIUtility.pixelsPerPoint);
var textParams = TextStylePainterParameters.GetDefault(this, text);
textParams.text = " ";
textParams.wordWrapWidth = 0.0f;
textParams.wordWrap = false;
var textNativeSettings = textParams.GetTextNativeSettings(textScaling);
float lineHeight = TextNative.ComputeTextHeight(textNativeSettings);
float wordWrapWidth = 0.0f;
// Make sure to take into account the word wrap style...
if (editorEngine.multiline && (resolvedStyle.whiteSpace == WhiteSpace.Normal))
{
wordWrapWidth = contentRect.width;
// Since the wrapping is enabled, there is no need to offset the text... It will always fit the space on screen !
scrollOffset = Vector2.zero;
}
GUIUtility.compositionCursorPos = editorEngine.graphicalCursorPos - scrollOffset +
new Vector2(localPosition.x, localPosition.y + lineHeight);
Color drawCursorColor = cursorColor;
int selectionEndIndex = string.IsNullOrEmpty(GUIUtility.compositionString)
? selectIndex
: cursorIndex + GUIUtility.compositionString.Length;
CursorPositionStylePainterParameters cursorParams;
// Draw highlighted section, if any
if ((cursorIndex != selectionEndIndex) && !isDragging)
{
var painterParams = RectStylePainterParameters.GetDefault(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 = CursorPositionStylePainterParameters.GetDefault(this, text);
cursorParams.text = editorEngine.text;
cursorParams.wordWrapWidth = wordWrapWidth;
cursorParams.cursorIndex = min;
textNativeSettings = cursorParams.GetTextNativeSettings(textScaling);
Vector2 minPos = TextNative.GetCursorPosition(textNativeSettings, cursorParams.rect, min);
Vector2 maxPos = TextNative.GetCursorPosition(textNativeSettings, cursorParams.rect, max);
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.xMin, minPos.y + lineHeight, contentRect.width, inbetweenHeight);
painter.DrawRect(painterParams);
}
// Draw last line if not empty
if (maxPos.x != contentRect.x)
{
painterParams.rect = new Rect(contentRect.xMin, maxPos.y, maxPos.x, lineHeight);
painter.DrawRect(painterParams);
}
}
}
// Draw the text with the scroll offset
if (!string.IsNullOrEmpty(editorEngine.text) && contentRect.width > 0.0f && contentRect.height > 0.0f)
{
textParams = TextStylePainterParameters.GetDefault(this, text);
textParams.rect = new Rect(contentRect.x - scrollOffset.x, contentRect.y - scrollOffset.y, contentRect.width + scrollOffset.x, contentRect.height + scrollOffset.y);
textParams.text = editorEngine.text;
painter.DrawText(textParams);
}
// Draw the cursor
if (!isReadOnly && !isDragging)
{
if (cursorIndex == selectionEndIndex && computedStyle.unityFont.value != null)
{
cursorParams = CursorPositionStylePainterParameters.GetDefault(this, text);
cursorParams.text = editorEngine.text;
cursorParams.wordWrapWidth = wordWrapWidth;
cursorParams.cursorIndex = cursorIndex;
textNativeSettings = cursorParams.GetTextNativeSettings(textScaling);
Vector2 cursorPosition = TextNative.GetCursorPosition(textNativeSettings, cursorParams.rect, cursorParams.cursorIndex);
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 = CursorPositionStylePainterParameters.GetDefault(this, text);
cursorParams.text = editorEngine.text.Substring(0, editorEngine.altCursorPosition);
cursorParams.wordWrapWidth = wordWrapWidth;
cursorParams.cursorIndex = editorEngine.altCursorPosition;
textNativeSettings = cursorParams.GetTextNativeSettings(textScaling);
Vector2 altCursorPosition = TextNative.GetCursorPosition(textNativeSettings, cursorParams.rect, cursorParams.cursorIndex);
altCursorPosition -= scrollOffset;
var painterParams = new RectStylePainterParameters
{
rect = new Rect(altCursorPosition.x, altCursorPosition.y, 1f, lineHeight),
color = drawCursorColor
};
painter.DrawRect(painterParams);
}
}
keyboardTextEditor.PostDrawCursor();
}
internal static Vector2 MeasureVisualElementTextSize(VisualElement ve, string textToMeasure, float width, MeasureMode widthMode, float height, MeasureMode heightMode)
{
float measuredWidth = float.NaN;
float measuredHeight = float.NaN;
Font usedFont = ve.computedStyle.unityFont.value;
if (textToMeasure == null || usedFont == null)
{
return(new Vector2(measuredWidth, measuredHeight));
}
var elementScaling = ve.ComputeGlobalScale();
float pixelsPerPoint = (ve.elementPanel != null) ? ve.elementPanel.currentPixelsPerPoint : GUIUtility.pixelsPerPoint;
float scaling = (elementScaling.x + elementScaling.y) * 0.5f * pixelsPerPoint;
if (widthMode == MeasureMode.Exactly)
{
measuredWidth = width;
}
else
{
var textParams = TextStylePainterParameters.GetDefault(ve, textToMeasure);
textParams.text = textToMeasure;
textParams.font = usedFont;
textParams.wordWrapWidth = 0.0f;
textParams.wordWrap = false;
textParams.richText = true;
//we make sure to round up as yoga could decide to round down and text would start wrapping
measuredWidth = Mathf.Ceil(TextNative.ComputeTextWidth(textParams.GetTextNativeSettings(scaling)));
if (widthMode == MeasureMode.AtMost)
{
measuredWidth = Mathf.Min(measuredWidth, width);
}
}
if (heightMode == MeasureMode.Exactly)
{
measuredHeight = height;
}
else
{
var textParams = TextStylePainterParameters.GetDefault(ve, textToMeasure);
textParams.text = textToMeasure;
textParams.font = usedFont;
textParams.wordWrapWidth = measuredWidth;
textParams.richText = true;
measuredHeight = Mathf.Ceil(TextNative.ComputeTextHeight(textParams.GetTextNativeSettings(scaling)));
if (heightMode == MeasureMode.AtMost)
{
measuredHeight = Mathf.Min(measuredHeight, height);
}
}
return(new Vector2(measuredWidth, measuredHeight));
}