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Merge pull request #48 from fsih/addUndo

Browse source 
Add undo/redo
This commit is contained in:
DD Liu 2017-10-12 11:25:31 -04:00 committed by GitHub
commit f7a5111950
25 changed files with 578 additions and 228 deletions
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16
src/components/paint-editor.jsx
View file

@ -58,11 +58,13 @@ class PaintEditorComponent extends React.Component {
<div className={styles.buttonGroup}>
<button
className={styles.button}
onClick={this.props.onUndo}
>
Undo
</button>
<button
className={styles.button}
onClick={this.props.onRedo}
>
Redo
</button>
@ -101,11 +103,17 @@ class PaintEditorComponent extends React.Component {
{/* Second Row */}
<div className={styles.row}>
{/* fill */}
<FillColorIndicatorComponent />
<FillColorIndicatorComponent
onUpdateSvg={this.props.onUpdateSvg}
/>
{/* stroke */}
<StrokeColorIndicatorComponent />
<StrokeColorIndicatorComponent
onUpdateSvg={this.props.onUpdateSvg}
/>
{/* stroke width */}
<StrokeWidthIndicatorComponent />
<StrokeWidthIndicatorComponent
onUpdateSvg={this.props.onUpdateSvg}
/>
<div className={styles.inputGroup}>
Mode tools
@ -154,6 +162,8 @@ class PaintEditorComponent extends React.Component {
PaintEditorComponent.propTypes = {
intl: intlShape,
onRedo: PropTypes.func.isRequired,
onUndo: PropTypes.func.isRequired,
onUpdateSvg: PropTypes.func.isRequired,
rotationCenterX: PropTypes.number,
rotationCenterY: PropTypes.number,

19
src/containers/blob/blob.js
View file

@ -4,6 +4,7 @@ import BroadBrushHelper from './broad-brush-helper';
import SegmentBrushHelper from './segment-brush-helper';
import {MIXED, styleCursorPreview} from '../../helper/style-path';
import {clearSelection} from '../../helper/selection';
import {getGuideLayer} from '../../helper/layer';
/**
* Shared code for the brush and eraser mode. Adds functions on the paper tool object
@ -26,13 +27,13 @@ class Blobbiness {
}
/**
* @param {function} updateCallback call when the drawing has changed to let listeners know
* @param {function} onUpdateSvg call when the drawing has changed to let listeners know
* @param {function} clearSelectedItems Callback to clear the set of selected items in the Redux state
*/
constructor (updateCallback, clearSelectedItems) {
constructor (onUpdateSvg, clearSelectedItems) {
this.broadBrushHelper = new BroadBrushHelper();
this.segmentBrushHelper = new SegmentBrushHelper();
this.updateCallback = updateCallback;
this.onUpdateSvg = onUpdateSvg;
this.clearSelectedItems = clearSelectedItems;
// The following are stored to check whether these have changed and the cursor preview needs to be redrawn.
@ -143,7 +144,7 @@ class Blobbiness {
}
blob.cursorPreview.visible = false;
blob.updateCallback();
blob.onUpdateSvg();
blob.cursorPreview.visible = true;
blob.cursorPreview.bringToFront();
blob.cursorPreview.position = event.point;
@ -166,7 +167,7 @@ class Blobbiness {
this.cursorPreviewLastPoint = point;
}
if (this.cursorPreview &&
if (this.cursorPreview && this.cursorPreview.parent &&
this.brushSize === this.options.brushSize &&
this.fillColor === this.options.fillColor &&
this.strokeColor === this.options.strokeColor) {
@ -176,6 +177,8 @@ class Blobbiness {
center: point,
radius: this.options.brushSize / 2
});
newPreview.parent = getGuideLayer();
newPreview.data.isHelperItem = true;
if (this.cursorPreview) {
this.cursorPreview.remove();
}
@ -234,8 +237,6 @@ class Blobbiness {
paths.splice(i, 1);
}
}
// TODO: Add back undo
// pg.undo.snapshot('broadbrush');
}
mergeEraser (lastPath) {
@ -284,8 +285,6 @@ class Blobbiness {
}
}
lastPath.remove();
// TODO add back undo
// pg.undo.snapshot('eraser');
continue;
}
// Erase
@ -358,8 +357,6 @@ class Blobbiness {
items[i].remove();
}
lastPath.remove();
// TODO: Add back undo handling
// pg.undo.snapshot('eraser');
}
colorMatch (existingPath, addedPath) {

5
src/containers/brush-mode.jsx
View file

@ -4,10 +4,12 @@ import {connect} from 'react-redux';
import bindAll from 'lodash.bindall';
import Modes from '../modes/modes';
import Blobbiness from './blob/blob';
import {changeBrushSize} from '../reducers/brush-mode';
import {changeMode} from '../reducers/modes';
import {clearSelectedItems} from '../reducers/selected-items';
import {clearSelection} from '../helper/selection';
import BrushModeComponent from '../components/brush-mode.jsx';
class BrushMode extends React.Component {
@ -18,7 +20,8 @@ class BrushMode extends React.Component {
'deactivateTool',
'onScroll'
]);
this.blob = new Blobbiness(this.props.onUpdateSvg, this.props.clearSelectedItems);
this.blob = new Blobbiness(
this.props.onUpdateSvg, this.props.clearSelectedItems);
}
componentDidMount () {
if (this.props.isBrushModeActive) {

3
src/containers/eraser-mode.jsx
View file

@ -17,7 +17,8 @@ class EraserMode extends React.Component {
'deactivateTool',
'onScroll'
]);
this.blob = new Blobbiness(this.props.onUpdateSvg, this.props.clearSelectedItems);
this.blob = new Blobbiness(
this.props.onUpdateSvg, this.props.clearSelectedItems);
}
componentDidMount () {
if (this.props.isEraserModeActive) {

33
src/containers/fill-color-indicator.jsx
View file

@ -1,19 +1,48 @@
import {connect} from 'react-redux';
import PropTypes from 'prop-types';
import React from 'react';
import bindAll from 'lodash.bindall';
import {changeFillColor} from '../reducers/fill-color';
import FillColorIndicatorComponent from '../components/fill-color-indicator.jsx';
import {applyFillColorToSelection} from '../helper/style-path';
class FillColorIndicator extends React.Component {
constructor (props) {
super(props);
bindAll(this, [
'handleChangeFillColor'
]);
}
handleChangeFillColor (newColor) {
applyFillColorToSelection(newColor, this.props.onUpdateSvg);
this.props.onChangeFillColor(newColor);
}
render () {
return (
<FillColorIndicatorComponent
fillColor={this.props.fillColor}
onChangeFillColor={this.handleChangeFillColor}
/>
);
}
}
const mapStateToProps = state => ({
fillColor: state.scratchPaint.color.fillColor
});
const mapDispatchToProps = dispatch => ({
onChangeFillColor: fillColor => {
applyFillColorToSelection(fillColor);
dispatch(changeFillColor(fillColor));
}
});
FillColorIndicator.propTypes = {
fillColor: PropTypes.string,
onChangeFillColor: PropTypes.func.isRequired,
onUpdateSvg: PropTypes.func.isRequired
};
export default connect(
mapStateToProps,
mapDispatchToProps
)(FillColorIndicatorComponent);
)(FillColorIndicator);

19
src/containers/line-mode.jsx
View file

@ -1,15 +1,16 @@
import paper from 'paper';
import PropTypes from 'prop-types';
import React from 'react';
import {connect} from 'react-redux';
import bindAll from 'lodash.bindall';
import Modes from '../modes/modes';
import {changeStrokeWidth} from '../reducers/stroke-width';
import {clearSelection, getSelectedLeafItems} from '../helper/selection';
import {MIXED} from '../helper/style-path';
import {clearSelectedItems, setSelectedItems} from '../reducers/selected-items';
import LineModeComponent from '../components/line-mode.jsx';
import {changeMode} from '../reducers/modes';
import paper from 'paper';
import {changeStrokeWidth} from '../reducers/stroke-width';
import {clearSelectedItems, setSelectedItems} from '../reducers/selected-items';
import LineModeComponent from '../components/line-mode.jsx';
class LineMode extends React.Component {
static get SNAP_TOLERANCE () {
@ -206,13 +207,11 @@ class LineMode extends React.Component {
}
this.hitResult = null;
}
this.props.onUpdateSvg();
this.props.setSelectedItems();
// TODO add back undo
// if (this.path) {
// pg.undo.snapshot('line');
// }
if (this.path) {
this.props.onUpdateSvg();
}
}
toleranceSquared () {
return Math.pow(LineMode.SNAP_TOLERANCE / paper.view.zoom, 2);

45
src/containers/paint-editor.jsx
View file

@ -1,8 +1,13 @@
import PropTypes from 'prop-types';
import React from 'react';
import PaintEditorComponent from '../components/paint-editor.jsx';
import {changeMode} from '../reducers/modes';
import {undo, redo, undoSnapshot} from '../reducers/undo';
import {getGuideLayer} from '../helper/layer';
import {performUndo, performRedo, performSnapshot} from '../helper/undo';
import Modes from '../modes/modes';
import {connect} from 'react-redux';
import bindAll from 'lodash.bindall';
@ -12,7 +17,9 @@ class PaintEditor extends React.Component {
constructor (props) {
super(props);
bindAll(this, [
'handleUpdateSvg'
'handleUpdateSvg',
'handleUndo',
'handleRedo'
]);
}
componentDidMount () {
@ -21,7 +28,7 @@ class PaintEditor extends React.Component {
componentWillUnmount () {
document.removeEventListener('keydown', this.props.onKeyPress);
}
handleUpdateSvg () {
handleUpdateSvg (skipSnapshot) {
// Hide bounding box
getGuideLayer().visible = false;
const bounds = paper.project.activeLayer.bounds;
@ -32,14 +39,25 @@ class PaintEditor extends React.Component {
}),
paper.project.view.center.x - bounds.x,
paper.project.view.center.y - bounds.y);
if (!skipSnapshot) {
performSnapshot(this.props.undoSnapshot);
}
getGuideLayer().visible = true;
}
handleUndo () {
performUndo(this.props.undoState, this.props.onUndo, this.handleUpdateSvg);
}
handleRedo () {
performRedo(this.props.undoState, this.props.onRedo, this.handleUpdateSvg);
}
render () {
return (
<PaintEditorComponent
rotationCenterX={this.props.rotationCenterX}
rotationCenterY={this.props.rotationCenterY}
svg={this.props.svg}
onRedo={this.handleRedo}
onUndo={this.handleUndo}
onUpdateSvg={this.handleUpdateSvg}
/>
);
@ -48,12 +66,22 @@ class PaintEditor extends React.Component {
PaintEditor.propTypes = {
onKeyPress: PropTypes.func.isRequired,
onRedo: PropTypes.func.isRequired,
onUndo: PropTypes.func.isRequired,
onUpdateSvg: PropTypes.func.isRequired,
rotationCenterX: PropTypes.number,
rotationCenterY: PropTypes.number,
svg: PropTypes.string
svg: PropTypes.string,
undoSnapshot: PropTypes.func.isRequired,
undoState: PropTypes.shape({
stack: PropTypes.arrayOf(PropTypes.object).isRequired,
pointer: PropTypes.number.isRequired
})
};
const mapStateToProps = state => ({
undoState: state.scratchPaint.undo
});
const mapDispatchToProps = dispatch => ({
onKeyPress: event => {
if (event.key === 'e') {
@ -65,10 +93,19 @@ const mapDispatchToProps = dispatch => ({
} else if (event.key === 's') {
dispatch(changeMode(Modes.SELECT));
}
},
onUndo: () => {
dispatch(undo());
},
onRedo: () => {
dispatch(redo());
},
undoSnapshot: snapshot => {
dispatch(undoSnapshot(snapshot));
}
});
export default connect(
null,
mapStateToProps,
mapDispatchToProps
)(PaintEditor);

18
src/containers/paper-canvas.jsx
View file

@ -1,8 +1,12 @@
import bindAll from 'lodash.bindall';
import PropTypes from 'prop-types';
import React from 'react';
import {connect} from 'react-redux';
import paper from 'paper';
import {performSnapshot} from '../helper/undo';
import {undoSnapshot} from '../reducers/undo';
import styles from './paper-canvas.css';
class PaperCanvas extends React.Component {
@ -20,6 +24,7 @@ class PaperCanvas extends React.Component {
if (this.props.svg) {
this.importSvg(this.props.svg, this.props.rotationCenterX, this.props.rotationCenterY);
}
performSnapshot(this.props.undoSnapshot);
}
componentWillReceiveProps (newProps) {
paper.project.activeLayer.removeChildren();
@ -85,7 +90,16 @@ PaperCanvas.propTypes = {
canvasRef: PropTypes.func,
rotationCenterX: PropTypes.number,
rotationCenterY: PropTypes.number,
svg: PropTypes.string
svg: PropTypes.string,
undoSnapshot: PropTypes.func.isRequired
};
const mapDispatchToProps = dispatch => ({
undoSnapshot: snapshot => {
dispatch(undoSnapshot(snapshot));
}
});
export default PaperCanvas;
export default connect(
null,
mapDispatchToProps
)(PaperCanvas);

3
src/containers/reshape-mode.jsx
View file

@ -45,7 +45,8 @@ class ReshapeMode extends React.Component {
this.props.clearHoveredItem,
this.props.setSelectedItems,
this.props.clearSelectedItems,
this.props.onUpdateSvg);
this.props.onUpdateSvg
);
this.tool.setPrevHoveredItemId(this.props.hoveredItemId);
this.tool.activate();
}

3
src/containers/select-mode.jsx
View file

@ -45,7 +45,8 @@ class SelectMode extends React.Component {
this.props.clearHoveredItem,
this.props.setSelectedItems,
this.props.clearSelectedItems,
this.props.onUpdateSvg);
this.props.onUpdateSvg
);
this.tool.activate();
}
deactivateTool () {

33
src/containers/stroke-color-indicator.jsx
View file

@ -1,19 +1,48 @@
import {connect} from 'react-redux';
import PropTypes from 'prop-types';
import React from 'react';
import bindAll from 'lodash.bindall';
import {changeStrokeColor} from '../reducers/stroke-color';
import StrokeColorIndicatorComponent from '../components/stroke-color-indicator.jsx';
import {applyStrokeColorToSelection} from '../helper/style-path';
class StrokeColorIndicator extends React.Component {
constructor (props) {
super(props);
bindAll(this, [
'handleChangeStrokeColor'
]);
}
handleChangeStrokeColor (newColor) {
applyStrokeColorToSelection(newColor, this.props.onUpdateSvg);
this.props.onChangeStrokeColor(newColor);
}
render () {
return (
<StrokeColorIndicatorComponent
strokeColor={this.props.strokeColor}
onChangeStrokeColor={this.handleChangeStrokeColor}
/>
);
}
}
const mapStateToProps = state => ({
strokeColor: state.scratchPaint.color.strokeColor
});
const mapDispatchToProps = dispatch => ({
onChangeStrokeColor: strokeColor => {
applyStrokeColorToSelection(strokeColor);
dispatch(changeStrokeColor(strokeColor));
}
});
StrokeColorIndicator.propTypes = {
onChangeStrokeColor: PropTypes.func.isRequired,
onUpdateSvg: PropTypes.func.isRequired,
strokeColor: PropTypes.string
};
export default connect(
mapStateToProps,
mapDispatchToProps
)(StrokeColorIndicatorComponent);
)(StrokeColorIndicator);

33
src/containers/stroke-width-indicator.jsx
View file

@ -1,19 +1,48 @@
import {connect} from 'react-redux';
import PropTypes from 'prop-types';
import React from 'react';
import bindAll from 'lodash.bindall';
import {changeStrokeWidth} from '../reducers/stroke-width';
import StrokeWidthIndicatorComponent from '../components/stroke-width-indicator.jsx';
import {applyStrokeWidthToSelection} from '../helper/style-path';
class StrokeWidthIndicator extends React.Component {
constructor (props) {
super(props);
bindAll(this, [
'handleChangeStrokeWidth'
]);
}
handleChangeStrokeWidth (newWidth) {
applyStrokeWidthToSelection(newWidth, this.props.onUpdateSvg);
this.props.onChangeStrokeWidth(newWidth);
}
render () {
return (
<StrokeWidthIndicatorComponent
strokeWidth={this.props.strokeWidth}
onChangeStrokeWidth={this.handleChangeStrokeWidth}
/>
);
}
}
const mapStateToProps = state => ({
strokeWidth: state.scratchPaint.color.strokeWidth
});
const mapDispatchToProps = dispatch => ({
onChangeStrokeWidth: strokeWidth => {
applyStrokeWidthToSelection(strokeWidth);
dispatch(changeStrokeWidth(strokeWidth));
}
});
StrokeWidthIndicator.propTypes = {
onChangeStrokeWidth: PropTypes.func.isRequired,
onUpdateSvg: PropTypes.func.isRequired,
strokeWidth: PropTypes.number
};
export default connect(
mapStateToProps,
mapDispatchToProps
)(StrokeWidthIndicatorComponent);
)(StrokeWidthIndicator);

24
src/helper/selection-tools/handle-tool.js
View file

@ -12,6 +12,7 @@ class HandleTool {
this.setSelectedItems = setSelectedItems;
this.clearSelectedItems = clearSelectedItems;
this.onUpdateSvg = onUpdateSvg;
this.selectedItems = [];
}
/**
* @param {!object} hitProperties Describes the mouse event
@ -28,9 +29,9 @@ class HandleTool {
this.hitType = hitProperties.hitResult.type;
}
onMouseDrag (event) {
const selectedItems = getSelectedLeafItems();
this.selectedItems = getSelectedLeafItems();
for (const item of selectedItems) {
for (const item of this.selectedItems) {
for (const seg of item.segments) {
// add the point of the segment before the drag started
// for later use in the snap calculation
@ -66,8 +67,23 @@ class HandleTool {
}
}
onMouseUp () {
// @todo add back undo
this.onUpdateSvg();
// resetting the items and segments origin points for the next usage
let moved = false;
for (const item of this.selectedItems) {
if (!item.segments) {
return;
}
for (const seg of item.segments) {
if (seg.origPoint && !seg.equals(seg.origPoint)) {
moved = true;
}
seg.origPoint = null;
}
}
if (moved) {
this.onUpdateSvg();
}
this.selectedItems = [];
}
}

12
src/helper/selection-tools/move-tool.js
View file

@ -51,7 +51,7 @@ class MoveTool {
}
this._select(item, true, hitProperties.subselect);
}
if (hitProperties.clone) cloneSelection(hitProperties.subselect);
if (hitProperties.clone) cloneSelection(hitProperties.subselect, this.onUpdateSvg);
this.selectedItems = getSelectedLeafItems();
}
/**
@ -94,15 +94,19 @@ class MoveTool {
}
}
onMouseUp () {
let moved = false;
// resetting the items origin point for the next usage
for (const item of this.selectedItems) {
if (item.data.origPos && !item.position.equals(item.data.origPos)) {
moved = true;
}
item.data.origPos = null;
}
this.selectedItems = null;
// @todo add back undo
// pg.undo.snapshot('moveSelection');
this.onUpdateSvg();
if (moved) {
this.onUpdateSvg();
}
}
}

9
src/helper/selection-tools/point-tool.js
View file

@ -166,11 +166,15 @@ class PointTool {
}
onMouseUp () {
// resetting the items and segments origin points for the next usage
let moved = false;
for (const item of this.selectedItems) {
if (!item.segments) {
return;
}
for (const seg of item.segments) {
if (seg.origPoint && !seg.equals(seg.origPoint)) {
moved = true;
}
seg.origPoint = null;
}
}
@ -193,8 +197,9 @@ class PointTool {
}
this.selectedItems = null;
this.setSelectedItems();
// @todo add back undo
this.onUpdateSvg();
if (moved) {
this.onUpdateSvg();
}
}
}

3
src/helper/selection-tools/reshape-tool.js
View file

@ -221,8 +221,7 @@ class ReshapeTool extends paper.Tool {
handleKeyUp (event) {
// Backspace, delete
if (event.key === 'delete' || event.key === 'backspace') {
deleteSelection(Modes.RESHAPE);
this.onUpdateSvg();
deleteSelection(Modes.RESHAPE, this.onUpdateSvg);
}
}
deactivateTool () {

1
src/helper/selection-tools/rotate-tool.js
View file

@ -63,7 +63,6 @@ class RotateTool {
this.rotGroupPivot = null;
this.prevRot = [];
// @todo add back undo
this.onUpdateSvg();
}
}

1
src/helper/selection-tools/scale-tool.js
View file

@ -157,7 +157,6 @@ class ScaleTool {
}
this.itemGroup.remove();
// @todo add back undo
this.onUpdateSvg();
}
_getRectCornerNameByIndex (index) {

3
src/helper/selection-tools/select-tool.js
View file

@ -126,10 +126,9 @@ class SelectTool extends paper.Tool {
handleKeyUp (event) {
// Backspace, delete
if (event.key === 'delete' || event.key === 'backspace') {
deleteSelection(Modes.SELECT);
deleteSelection(Modes.SELECT, this.onUpdateSvg);
this.clearHoveredItem();
this.boundingBoxTool.removeBoundsPath();
this.onUpdateSvg();
}
}
deactivateTool () {

176
src/helper/selection.js
View file

@ -57,7 +57,7 @@ const selectItemSegments = function (item, state) {
}
};
const setGroupSelection = function (root, selected, fullySelected) {
const _setGroupSelection = function (root, selected, fullySelected) {
root.fullySelected = fullySelected;
root.selected = selected;
// select children of compound-path or group
@ -66,7 +66,7 @@ const setGroupSelection = function (root, selected, fullySelected) {
if (children) {
for (const child of children) {
if (isGroup(child)) {
setGroupSelection(child, selected, fullySelected);
_setGroupSelection(child, selected, fullySelected);
} else {
child.fullySelected = fullySelected;
child.selected = selected;
@ -85,12 +85,12 @@ const setItemSelection = function (item, state, fullySelected) {
// do it recursive
setItemSelection(parentGroup, state, fullySelected);
} else if (itemsCompoundPath) {
setGroupSelection(itemsCompoundPath, state, fullySelected);
_setGroupSelection(itemsCompoundPath, state, fullySelected);
} else {
if (item.data && item.data.noSelect) {
return;
}
setGroupSelection(item, state, fullySelected);
_setGroupSelection(item, state, fullySelected);
}
// @todo: Update toolbar state on change
@ -165,21 +165,19 @@ const getSelectedLeafItems = function () {
return items;
};
const deleteItemSelection = function (items) {
const _deleteItemSelection = function (items, onUpdateSvg) {
for (let i = 0; i < items.length; i++) {
items[i].remove();
}
// @todo: Update toolbar state on change
paper.project.view.update();
// @todo add back undo
// pg.undo.snapshot('deleteItemSelection');
if (items.length > 0) {
paper.project.view.update();
onUpdateSvg();
}
};
const removeSelectedSegments = function (items) {
// @todo add back undo
// pg.undo.snapshot('removeSelectedSegments');
const _removeSelectedSegments = function (items, onUpdateSvg) {
const segmentsToRemove = [];
for (let i = 0; i < items.length; i++) {
@ -198,161 +196,37 @@ const removeSelectedSegments = function (items) {
seg.remove();
removedSegments = true;
}
if (removedSegments) {
paper.project.view.update();
onUpdateSvg();
}
return removedSegments;
};
const deleteSelection = function (mode) {
const deleteSelection = function (mode, onUpdateSvg) {
if (mode === Modes.RESHAPE) {
const selectedItems = getSelectedLeafItems();
// If there are points selected remove them. If not delete the item selected.
if (!removeSelectedSegments(selectedItems)) {
deleteItemSelection(selectedItems);
if (!_removeSelectedSegments(selectedItems, onUpdateSvg)) {
_deleteItemSelection(selectedItems, onUpdateSvg);
}
} else {
const selectedItems = getSelectedRootItems();
deleteItemSelection(selectedItems);
_deleteItemSelection(selectedItems, onUpdateSvg);
}
};
const splitPathRetainSelection = function (path, index, deselectSplitSegments) {
const selectedPoints = [];
// collect points of selected segments, so we can reselect them
// once the path is split.
for (let i = 0; i < path.segments.length; i++) {
const seg = path.segments[i];
if (seg.selected) {
if (deselectSplitSegments && i === index) {
continue;
}
selectedPoints.push(seg.point);
}
}
const newPath = path.split(index, 0);
if (!newPath) return;
// reselect all of the newPaths segments that are in the exact same location
// as the ones that are stored in selectedPoints
for (let i = 0; i < newPath.segments.length; i++) {
const seg = newPath.segments[i];
for (let j = 0; j < selectedPoints.length; j++) {
const point = selectedPoints[j];
if (point.x === seg.point.x && point.y === seg.point.y) {
seg.selected = true;
}
}
}
// only do this if path and newPath are different
// (split at more than one point)
if (path !== newPath) {
for (let i = 0; i < path.segments.length; i++) {
const seg = path.segments[i];
for (let j = 0; j < selectedPoints.length; j++) {
const point = selectedPoints[j];
if (point.x === seg.point.x && point.y === seg.point.y) {
seg.selected = true;
}
}
}
}
};
const splitPathAtSelectedSegments = function () {
const items = getSelectedRootItems();
for (let i = 0; i < items.length; i++) {
const item = items[i];
const segments = item.segments;
for (let j = 0; j < segments.length; j++) {
const segment = segments[j];
if (segment.selected) {
if (item.closed ||
(segment.next &&
!segment.next.selected &&
segment.previous &&
!segment.previous.selected)) {
splitPathRetainSelection(item, j, true);
splitPathAtSelectedSegments();
return;
}
}
}
}
};
const deleteSegments = function (item) {
if (item.children) {
for (let i = 0; i < item.children.length; i++) {
const child = item.children[i];
deleteSegments(child);
}
} else {
const segments = item.segments;
for (let j = 0; j < segments.length; j++) {
const segment = segments[j];
if (segment.selected) {
if (item.closed ||
(segment.next &&
!segment.next.selected &&
segment.previous &&
!segment.previous.selected)) {
splitPathRetainSelection(item, j);
deleteSelection();
return;
} else if (!item.closed) {
segment.remove();
j--; // decrease counter if we removed one from the loop
}
}
}
}
// remove items with no segments left
if (item.segments.length <= 0) {
item.remove();
}
};
const deleteSegmentSelection = function (items) {
for (let i = 0; i < items.length; i++) {
deleteSegments(items[i]);
}
// @todo: Update toolbar state on change
paper.project.view.update();
// @todo add back undo
// pg.undo.snapshot('deleteSegmentSelection');
};
const cloneSelection = function (recursive) {
const cloneSelection = function (recursive, onUpdateSvg) {
const selectedItems = recursive ? getSelectedLeafItems() : getSelectedRootItems();
for (let i = 0; i < selectedItems.length; i++) {
const item = selectedItems[i];
item.clone();
item.selected = false;
}
// @todo add back undo
// pg.undo.snapshot('cloneSelection');
onUpdateSvg();
};
// Only returns paths, no compound paths, groups or any other stuff
const getSelectedPaths = function () {
const allPaths = getSelectedRootItems();
const paths = [];
for (let i = 0; i < allPaths.length; i++) {
const path = allPaths[i];
if (path.className === 'Path') {
paths.push(path);
}
}
return paths;
};
const checkBoundsItem = function (selectionRect, item, event) {
const _checkBoundsItem = function (selectionRect, item, event) {
const itemBounds = new paper.Path([
item.localToGlobal(item.internalBounds.topLeft),
item.localToGlobal(item.internalBounds.topRight),
@ -441,7 +315,7 @@ const _handleRectangularSelectionItems = function (item, event, rect, mode, root
// @todo: Update toolbar state on change
} else if (isBoundsItem(item)) {
if (checkBoundsItem(rect, item, event)) {
if (_checkBoundsItem(rect, item, event)) {
return false;
}
}
@ -524,16 +398,10 @@ export {
selectAllSegments,
clearSelection,
deleteSelection,
deleteItemSelection,
deleteSegmentSelection,
splitPathAtSelectedSegments,
cloneSelection,
setItemSelection,
setGroupSelection,
getSelectedLeafItems,
getSelectedPaths,
getSelectedRootItems,
removeSelectedSegments,
processRectangularSelection,
selectRootItem,
shouldShowIfSelection,

74
src/helper/style-path.js
View file

@ -1,3 +1,4 @@
import paper from 'paper';
import {getSelectedLeafItems} from './selection';
import {isPGTextItem, isPointTextItem} from './item';
import {isGroup} from './group';
@ -7,39 +8,56 @@ const MIXED = 'scratch-paint/style-path/mixed';
/**
* Called when setting fill color
* @param {string} colorString New color, css format
* @param {!function} onUpdateSvg A callback to call when the image visibly changes
*/
const applyFillColorToSelection = function (colorString) {
const applyFillColorToSelection = function (colorString, onUpdateSvg) {
const items = getSelectedLeafItems();
let changed = false;
for (const item of items) {
if (isPGTextItem(item)) {
for (const child of item.children) {
if (child.children) {
for (const path of child.children) {
if (!path.data.isPGGlyphRect) {
path.fillColor = colorString;
if ((path.fillColor === null && colorString) ||
path.fillColor.toCSS() !== new paper.Color(colorString).toCSS()) {
changed = true;
path.fillColor = colorString;
}
}
}
} else if (!child.data.isPGGlyphRect) {
child.fillColor = colorString;
if ((child.fillColor === null && colorString) ||
child.fillColor.toCSS() !== new paper.Color(colorString).toCSS()) {
changed = true;
child.fillColor = colorString;
}
}
}
} else {
if (isPointTextItem(item) && !colorString) {
colorString = 'rgba(0,0,0,0)';
}
item.fillColor = colorString;
if ((item.fillColor === null && colorString) ||
item.fillColor.toCSS() !== new paper.Color(colorString).toCSS()) {
changed = true;
item.fillColor = colorString;
}
}
}
// @todo add back undo
if (changed) {
onUpdateSvg();
}
};
/**
* Called when setting stroke color
* @param {string} colorString New color, css format
* @param {!function} onUpdateSvg A callback to call when the image visibly changes
*/
const applyStrokeColorToSelection = function (colorString) {
const applyStrokeColorToSelection = function (colorString, onUpdateSvg) {
const items = getSelectedLeafItems();
let changed = false;
for (const item of items) {
if (isPGTextItem(item)) {
if (item.children) {
@ -47,37 +65,53 @@ const applyStrokeColorToSelection = function (colorString) {
if (child.children) {
for (const path of child.children) {
if (!path.data.isPGGlyphRect) {
path.strokeColor = colorString;
if ((path.strokeColor === null && colorString) ||
path.strokeColor.toCSS() !== new paper.Color(colorString).toCSS()) {
changed = true;
path.strokeColor = colorString;
}
}
}
} else if (!child.data.isPGGlyphRect) {
child.strokeColor = colorString;
if (child.strokeColor !== colorString) {
changed = true;
child.strokeColor = colorString;
}
}
}
} else if (!item.data.isPGGlyphRect) {
item.strokeColor = colorString;
if ((item.strokeColor === null && colorString) ||
item.strokeColor.toCSS() !== new paper.Color(colorString).toCSS()) {
changed = true;
item.strokeColor = colorString;
}
}
} else {
} else if ((item.strokeColor === null && colorString) ||
item.strokeColor.toCSS() !== new paper.Color(colorString).toCSS()) {
changed = true;
item.strokeColor = colorString;
}
}
// @todo add back undo
if (changed) {
onUpdateSvg();
}
};
/**
* Called when setting stroke width
* @param {number} value New stroke width
* @param {!function} onUpdateSvg A callback to call when the image visibly changes
*/
const applyStrokeWidthToSelection = function (value) {
const applyStrokeWidthToSelection = function (value, onUpdateSvg) {
const items = getSelectedLeafItems();
for (const item of items) {
if (isGroup(item)) {
continue;
} else {
} else if (item.strokeWidth !== value) {
item.strokeWidth = value;
onUpdateSvg();
}
}
// @todo add back undo
};
/**
@ -167,8 +201,11 @@ const getColorsFromSelection = function (selectedItems) {
const stylePath = function (path, options) {
if (options.isEraser) {
path.fillColor = 'white';
} else {
} else if (options.fillColor) {
path.fillColor = options.fillColor;
} else {
// Make sure something visible is drawn
path.fillColor = 'black';
}
};
@ -177,8 +214,11 @@ const styleCursorPreview = function (path, options) {
path.fillColor = 'white';
path.strokeColor = 'cornflowerblue';
path.strokeWidth = 1;
} else {
} else if (options.fillColor) {
path.fillColor = options.fillColor;
} else {
// Make sure something visible is drawn
path.fillColor = 'black';
}
};

49
src/helper/undo.js Normal file
View file

@ -0,0 +1,49 @@
// undo functionality
// modifed from https://github.com/memononen/stylii
import paper from 'paper';
const performSnapshot = function (dispatchPerformSnapshot) {
dispatchPerformSnapshot({
json: paper.project.exportJSON({asString: false})
});
// @todo enable/disable buttons
// updateButtonVisibility();
};
const _restore = function (entry, onUpdateSvg) {
for (const layer of paper.project.layers) {
layer.removeChildren();
}
paper.project.clear();
paper.project.importJSON(entry.json);
paper.view.update();
onUpdateSvg(true /* skipSnapshot */);
};
const performUndo = function (undoState, dispatchPerformUndo, onUpdateSvg) {
if (undoState.pointer > 0) {
_restore(undoState.stack[undoState.pointer - 1], onUpdateSvg);
dispatchPerformUndo();
// @todo enable/disable buttons
// updateButtonVisibility();
}
};
const performRedo = function (undoState, dispatchPerformRedo, onUpdateSvg) {
if (undoState.pointer >= 0 && undoState.pointer < undoState.stack.length - 1) {
_restore(undoState.stack[undoState.pointer + 1], onUpdateSvg);
dispatchPerformRedo();
// @todo enable/disable buttons
// updateButtonVisibility();
}
};
export {
performSnapshot,
performUndo,
performRedo
};

4
src/reducers/scratch-paint-reducer.js
View file

@ -5,6 +5,7 @@ import eraserModeReducer from './eraser-mode';
import colorReducer from './color';
import hoverReducer from './hover';
import selectedItemReducer from './selected-items';
import undoReducer from './undo';
export default combineReducers({
mode: modeReducer,
@ -12,5 +13,6 @@ export default combineReducers({
eraserMode: eraserModeReducer,
color: colorReducer,
hoveredItemId: hoverReducer,
selectedItems: selectedItemReducer
selectedItems: selectedItemReducer,
undo: undoReducer
});

79
src/reducers/undo.js Normal file
View file

@ -0,0 +1,79 @@
import log from '../log/log';
const UNDO = 'scratch-paint/undo/UNDO';
const REDO = 'scratch-paint/undo/REDO';
const SNAPSHOT = 'scratch-paint/undo/SNAPSHOT';
const CLEAR = 'scratch-paint/undo/CLEAR';
const initialState = {
stack: [],
pointer: -1
};
const reducer = function (state, action) {
if (typeof state === 'undefined') state = initialState;
switch (action.type) {
case UNDO:
if (state.pointer <= 0) {
log.warn(`Can't undo, undo stack is empty`);
return state;
}
return {
stack: state.stack,
pointer: state.pointer - 1
};
case REDO:
if (state.pointer <= -1 || state.pointer === state.stack.length - 1) {
log.warn(`Can't redo, redo stack is empty`);
return state;
}
return {
stack: state.stack,
pointer: state.pointer + 1
};
case SNAPSHOT:
if (!action.snapshot) {
log.warn(`Couldn't create undo snapshot, no data provided`);
return state;
}
return {
// Performing an action clears the redo stack
stack: state.stack.slice(0, state.pointer + 1).concat(action.snapshot),
pointer: state.pointer + 1
};
case CLEAR:
return initialState;
default:
return state;
}
};
// Action creators ==================================
const undoSnapshot = function (snapshot) {
return {
type: SNAPSHOT,
snapshot: snapshot
};
};
const undo = function () {
return {
type: UNDO
};
};
const redo = function () {
return {
type: REDO
};
};
const clearUndoState = function () {
return {
type: CLEAR
};
};
export {
reducer as default,
undo,
redo,
undoSnapshot,
clearUndoState
};

141
test/unit/undo-reducer.test.js Normal file
View file

@ -0,0 +1,141 @@
/* eslint-env jest */
import undoReducer from '../../src/reducers/undo';
import {undoSnapshot, undo, redo, clearUndoState} from '../../src/reducers/undo';
test('initialState', () => {
let defaultState;
expect(undoReducer(defaultState /* state */, {type: 'anything'} /* action */)).toBeDefined();
expect(undoReducer(defaultState /* state */, {type: 'anything'} /* action */).pointer).toEqual(-1);
expect(undoReducer(defaultState /* state */, {type: 'anything'} /* action */).stack).toHaveLength(0);
});
test('snapshot', () => {
let defaultState;
const state1 = {state: 1};
const state2 = {state: 2};
let reduxState = undoReducer(defaultState /* state */, undoSnapshot([state1]) /* action */);
expect(reduxState.pointer).toEqual(0);
expect(reduxState.stack).toHaveLength(1);
expect(reduxState.stack[0]).toEqual(state1);
reduxState = undoReducer(reduxState /* state */, undoSnapshot([state2]) /* action */);
expect(reduxState.pointer).toEqual(1);
expect(reduxState.stack).toHaveLength(2);
expect(reduxState.stack[0]).toEqual(state1);
expect(reduxState.stack[1]).toEqual(state2);
});
test('invalidSnapshot', () => {
let defaultState;
const state1 = {state: 1};
const reduxState = undoReducer(defaultState /* state */, undoSnapshot([state1]) /* action */);
const newReduxState = undoReducer(reduxState /* state */, undoSnapshot() /* action */); // No snapshot provided
expect(reduxState).toEqual(newReduxState);
});
test('clearUndoState', () => {
let defaultState;
const state1 = {state: 1};
const state2 = {state: 2};
// Push 2 states then clear
const reduxState = undoReducer(defaultState /* state */, undoSnapshot([state1]) /* action */);
undoReducer(reduxState /* state */, undoSnapshot([state2]) /* action */);
const newReduxState = undoReducer(reduxState /* state */, clearUndoState() /* action */);
expect(newReduxState.pointer).toEqual(-1);
expect(newReduxState.stack).toHaveLength(0);
});
test('cantUndo', () => {
let defaultState;
const state1 = {state: 1};
// Undo when there's no undo stack
let reduxState = undoReducer(defaultState /* state */, undo() /* action */);
expect(reduxState.pointer).toEqual(-1);
expect(reduxState.stack).toHaveLength(0);
// Undo when there's only one state
reduxState = undoReducer(reduxState /* state */, undoSnapshot([state1]) /* action */);
reduxState = undoReducer(reduxState /* state */, undo() /* action */);
expect(reduxState.pointer).toEqual(0);
expect(reduxState.stack).toHaveLength(1);
});
test('cantRedo', () => {
let defaultState;
const state1 = {state: 1};
let reduxState = undoReducer(defaultState /* state */, undoSnapshot([state1]) /* action */);
// Redo when there's no redo stack
reduxState = undoReducer(reduxState /* state */, redo() /* action */);
expect(reduxState.pointer).toEqual(0);
expect(reduxState.stack).toHaveLength(1);
});
test('undo', () => {
let defaultState;
const state1 = {state: 1};
const state2 = {state: 2};
// Push 2 states then undo one
let reduxState = undoReducer(defaultState /* state */, undoSnapshot([state1]) /* action */);
reduxState = undoReducer(reduxState /* state */, undoSnapshot([state2]) /* action */);
reduxState = undoReducer(reduxState /* state */, undo() /* action */);
expect(reduxState.pointer).toEqual(0);
expect(reduxState.stack).toHaveLength(2);
expect(reduxState.stack[0]).toEqual(state1);
expect(reduxState.stack[1]).toEqual(state2);
});
test('redo', () => {
let defaultState;
const state1 = {state: 1};
const state2 = {state: 2};
// Push 2 states then undo one
let reduxState = undoReducer(defaultState /* state */, undoSnapshot([state1]) /* action */);
reduxState = undoReducer(reduxState /* state */, undoSnapshot([state2]) /* action */);
let newReduxState = undoReducer(reduxState /* state */, undo() /* action */);
// Now redo and check equality with previous state
newReduxState = undoReducer(newReduxState /* state */, redo() /* action */);
expect(newReduxState.pointer).toEqual(reduxState.pointer);
expect(newReduxState.stack).toHaveLength(reduxState.stack.length);
expect(newReduxState.stack[0]).toEqual(reduxState.stack[0]);
expect(reduxState.stack[1]).toEqual(reduxState.stack[1]);
});
test('undoSnapshotCantRedo', () => {
let defaultState;
const state1 = {state: 1};
const state2 = {state: 2};
const state3 = {state: 3};
// Push 2 states then undo
let reduxState = undoReducer(defaultState /* state */, undoSnapshot([state1]) /* action */);
reduxState = undoReducer(reduxState /* state */, undoSnapshot([state2]) /* action */);
reduxState = undoReducer(reduxState /* state */, undo() /* action */);
expect(reduxState.pointer).toEqual(0);
expect(reduxState.stack).toHaveLength(2);
// Snapshot
reduxState = undoReducer(reduxState /* state */, undoSnapshot([state3]) /* action */);
// Redo should do nothing
const newReduxState = undoReducer(reduxState /* state */, redo() /* action */);
expect(newReduxState.pointer).toEqual(reduxState.pointer);
expect(newReduxState.stack).toHaveLength(reduxState.stack.length);
expect(newReduxState.stack[0]).toEqual(reduxState.stack[0]);
expect(newReduxState.stack[1]).toEqual(state3);
});