| /* |
| * Copyright 2019 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package androidx.ui.text |
| |
| import androidx.ui.geometry.Rect |
| import androidx.ui.graphics.Canvas |
| import androidx.ui.text.style.TextOverflow |
| |
| object TextPainter { |
| /** |
| * Paints the text onto the given canvas. |
| * |
| * @param canvas a canvas to be drawn |
| * @param textLayoutResult a result of text layout |
| */ |
| fun paint(canvas: Canvas, textLayoutResult: TextLayoutResult) { |
| val needClipping = textLayoutResult.hasVisualOverflow && |
| textLayoutResult.layoutInput.overflow == TextOverflow.Clip |
| if (needClipping) { |
| val width = textLayoutResult.size.width.toFloat() |
| val height = textLayoutResult.size.height.toFloat() |
| val bounds = Rect.fromLTWH(0f, 0f, width, height) |
| canvas.save() |
| canvas.clipRect(bounds) |
| } |
| try { |
| textLayoutResult.multiParagraph.paint(canvas) |
| } finally { |
| if (needClipping) { |
| canvas.restore() |
| } |
| } |
| } |
| } |