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90 changes: 90 additions & 0 deletions
90
modules/ui-model/src/main/java/com/mammb/code/editor/ui/model/SelectionDraw.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,90 @@ | ||
| /* | ||
| * Copyright 2023-2024 the original author or authors. | ||
| * | ||
| * 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 | ||
| * | ||
| * https://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 com.mammb.code.editor.ui.model; | ||
|
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| import com.mammb.code.editor.javafx.layout.FxFonts; | ||
| import com.mammb.code.editor.model.layout.TextRun; | ||
| import com.mammb.code.editor.model.text.OffsetPoint; | ||
| import javafx.scene.canvas.GraphicsContext; | ||
| import javafx.scene.paint.Color; | ||
| import java.util.Objects; | ||
|
|
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| /** | ||
| * SelectionDraw. | ||
| * @author Naotsugu Kobayashi | ||
| */ | ||
| public interface SelectionDraw { | ||
|
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| /** The color. */ | ||
| Color color = new Color(0.6784314F, 0.84705883F, 0.9019608F, 0.3); | ||
|
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| /** | ||
| * Get the min select offset. | ||
| * @return the min select offset | ||
| */ | ||
| OffsetPoint min(); | ||
|
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| /** | ||
| * Get the max select offset. | ||
| * @return the max select offset | ||
| */ | ||
| OffsetPoint max(); | ||
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|
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| /** | ||
| * Draw the selection. | ||
| * @param gc the graphics context | ||
| * @param run the text run | ||
| * @param offsetY the position y | ||
| * @param left the left position of run(margin included) | ||
| */ | ||
| default void draw(GraphicsContext gc, TextRun run, double offsetY, double left) { | ||
|
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| final OffsetPoint min = min(); | ||
| final OffsetPoint max = max(); | ||
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| if (min == null || Objects.equals(min, max)) { | ||
| return; | ||
| } | ||
|
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| long runStart = run.offset(); | ||
| long runEnd = runStart + run.length(); | ||
|
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| if (max().offset() >= runStart && min().offset() < runEnd) { | ||
|
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| final String text = run.text(); | ||
|
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| if (runEnd <= max().offset() && | ||
| ((text.length() == 1 && text.charAt(0) == '\n') || | ||
| (text.length() == 2 && text.charAt(0) == '\r' && text.charAt(1) == '\n'))) { | ||
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| gc.setFill(color); | ||
| gc.fillRect(run.layout().x() + left, offsetY, FxFonts.uppercaseLetterWidth(gc.getFont()), run.textLine().leadingHeight()); | ||
|
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| } else { | ||
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| double x1 = run.offsetToX().apply(Math.toIntExact(Math.max(min().offset(), runStart) - runStart)); | ||
| double x2 = run.offsetToX().apply(Math.toIntExact(Math.min(max().offset(), runEnd) - runStart)); | ||
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| gc.setFill(color); | ||
| gc.fillRect(x1 + left, offsetY, x2 - x1, run.textLine().leadingHeight()); | ||
|
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| } | ||
| } | ||
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| } | ||
|
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| } |
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75 changes: 75 additions & 0 deletions
75
modules/ui-model/src/main/java/com/mammb/code/editor/ui/model/impl/CaretSelection.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,75 @@ | ||
| /* | ||
| * Copyright 2023-2024 the original author or authors. | ||
| * | ||
| * 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 | ||
| * | ||
| * https://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 com.mammb.code.editor.ui.model.impl; | ||
|
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| import com.mammb.code.editor.model.text.OffsetPoint; | ||
| import com.mammb.code.editor.ui.model.SelectionDraw; | ||
|
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| /** | ||
| * CaretSelection. | ||
| * @author Naotsugu Kobayashi | ||
| */ | ||
| public class CaretSelection implements SelectionDraw { | ||
|
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| /** The selection open offset. */ | ||
| private final OffsetPoint start; | ||
|
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| /** The selection close offset caret. */ | ||
| private final CaretLine caretLine; | ||
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| /** | ||
| * Constructor. | ||
| * @param caretLine the caret | ||
| */ | ||
| public CaretSelection(CaretLine caretLine) { | ||
| if (caretLine == null) { | ||
| this.start = null; | ||
| this.caretLine = null; | ||
| } else { | ||
| this.start = caretLine.point(); | ||
| this.caretLine = caretLine; | ||
| } | ||
| } | ||
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| public boolean isInvalid() { | ||
| return start == null || caretLine.getLine() == null; | ||
| } | ||
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| @Override | ||
| public OffsetPoint min() { | ||
| if (isInvalid()) { | ||
| return null; | ||
| } | ||
| return (start.offset() <= caretLine.getBar().offset()) | ||
| ? start | ||
| : caretLine.point(); | ||
| } | ||
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| @Override | ||
| public OffsetPoint max() { | ||
| if (isInvalid()) { | ||
| return null; | ||
| } | ||
| return (start.offset() <= caretLine.getBar().offset()) | ||
| ? caretLine.point() | ||
| : start; | ||
| } | ||
|
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| } |
58 changes: 58 additions & 0 deletions
58
modules/ui-model/src/main/java/com/mammb/code/editor/ui/model/impl/CaretSelections.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,58 @@ | ||
| /* | ||
| * Copyright 2023-2024 the original author or authors. | ||
| * | ||
| * 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 | ||
| * | ||
| * https://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 com.mammb.code.editor.ui.model.impl; | ||
|
|
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| import com.mammb.code.editor.model.layout.TextRun; | ||
| import javafx.scene.canvas.GraphicsContext; | ||
| import java.util.List; | ||
| import java.util.stream.Collectors; | ||
|
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| /** | ||
| * CaretSelections. | ||
| * @author Naotsugu Kobayashi | ||
| */ | ||
| public class CaretSelections { | ||
|
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| private final List<CaretSelection> carets; | ||
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| public CaretSelections(List<CaretSelection> carets) { | ||
| this.carets = carets; | ||
| } | ||
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| public static CaretSelections of(List<CaretLine> caretLines) { | ||
| return new CaretSelections(caretLines.stream() | ||
| .map(CaretSelection::new) | ||
| .collect(Collectors.toList())); | ||
| } | ||
|
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| public void draw(GraphicsContext gc, TextRun run, double offsetY, double left) { | ||
| carets.removeIf(CaretSelection::isInvalid); | ||
| carets.forEach(c -> c.draw(gc, run, offsetY, left)); | ||
| } | ||
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| public void clear() { | ||
| carets.clear(); | ||
| } | ||
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|
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| private void ensureValid() { | ||
| carets.removeIf(CaretSelection::isInvalid); | ||
| } | ||
|
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| } |
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