我想用桶填充图像，但不知道如何去做
I wanna bucket fill an image but getting how to do it
我可以给房子上色，但问题是当我尝试给不同的部分上色时，先前的颜色正在消失。但是当我尝试在不同的部分着色时，颜色被删除了。我已经尝试了我能想到的一切，但我无法得到它需要一些帮助
Color _fillColor = Colors.cyan;
bool selected = true;
class houseFiller extends StatefulWidget {
@override
State<houseFiller> createState() => _houseFillerState();
}
class _houseFillerState extends State<houseFiller> {
final notifier = ValueNotifier(Offset.zero);
@override
Widget build(BuildContext context) {
return Listener(
onPointerDown: (e) => notifier.value = e.localPosition,
onPointerMove: (e) => notifier.value = e.localPosition,
child: Column(
children: [
TextButton(
onPressed: () {
setState(() {
_fillColor = Colors.brown;
});
},
child: const Text(
"Brown",
style: TextStyle(color: Colors.black),
),
style: ButtonStyle(
backgroundColor: MaterialStateProperty.all(Colors.brown)),
),
TextButton(
onPressed: () {
setState(() {
_fillColor = Colors.amber;
});
},
child: const Text(
"Amber",
style: TextStyle(color: Colors.black),
),
style: ButtonStyle(
backgroundColor: MaterialStateProperty.all(Colors.amber)),
),
TextButton(
onPressed: () {
setState(() {
_fillColor = Colors.cyan;
});
},
child: const Text(
"Cyan",
style: const TextStyle(color: Colors.black),
),
style: ButtonStyle(
backgroundColor: MaterialStateProperty.all(Colors.cyan)),
),
SizedBox(
height: 500,
width: 500,
child: CustomPaint(
painter: houseFillerPainter(notifier),
child: const SizedBox.expand(),
),
),
],
),
);
}
Offset toLocal(BuildContext context, Offset position) {
RenderBox renderBox = context.findRenderObject() as RenderBox;
return renderBox.globalToLocal(position);
}
}
class Shape {
Shape(strPath, this.label, this.color,this.selected) : _path = parseSvgPathData(strPath);
/// transforms a [_path] into [_transformedPath] using given [matrix]
void transform(Matrix4 matrix) => _transformedPath = _path.transform(matrix.storage);
final Path _path;
Path? _transformedPath;
final String? label;
final Color? color;
bool selected=false;
}
class houseFillerPainter extends CustomPainter {
houseFillerPainter(this._notifier) : super(repaint: _notifier);
static final _data =
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m262.59 85.62-.78 17.28-72.99 25.09-15.75-10.58z,m261.81 102.9-1.17 26.32-66.49 22.51 5.93 4.92-3.68 66.73-5.33 7.16 45-10.85q-.24 5.43-.51 10.85l-51.83 12.83-20.2 10.69 9.56-136.65 15.73 10.59z,m257.81 192.47 2.48-55.25.35-8 1.17-26.32.78-17.28.13-2.87 2.89-1.03-4.97 109.93z,
m260.64 129.22-.35 8-60.21 19.43-5.93-4.92z,m685.69 417.24-12.96-8.52-1.69 14.93-2.5-17.67-76.19-50.09-3.46 14.53-2.46-14.63-.72-4.26-28.07-18.46-53.75 9.09-1.93 4.43-7.1 16.36-6.82-12.79-2.6-4.88-225.96 38.21.16-2.82 297.86-52.07 128.19 84.98.33 7.72-.83.09v-.01z,
m251.87 607.21-5.52 9.2-73.69 1.84-4.71-8.39z,m559.34 521.94-308.69 21.6v-6l118-8.32 101.5-7.16 89.93-6.35 70.92 20.68 13.67 4 47.08 13.74v5.28c.04.59-132.41-37.47-132.41-37.47z,m246.35 543.54 18.23-327.51 4.28-1.25v4.91l-7.71 134.63-.27 4.69-1.24 21.66-.16 2.82-.22 3.86-8.61 150.18v6.01z,
m240.82 700.75 8.19 10.24-89.25-3.69 8.19-9.2z,m667.4 229.3 6.38 7.11 12.38 13.79v3.17l-131.53-144.15-314.25 91.85-3.5 1c.07-1.39.13-2.78.2-4.18l20.75-5.45 2.82-.82 25.22-7.34 2.91-.85 8-2.31 86.66-25.21 86.36-25.13 86.6-25.2 4.62 5.15 37.68 42 59.3 66.14 2 2.2 6 6.68z,m236.45 211.1c-.13 2.86-.26 5.73-.4 8.59l-45 10.85 5.33-7.16z,
m163 262.48 71.85-17.79q-.34 7.27-.69 14.51l-53.55 12.08z,m180.64 271.28 53.55-12.08-1.19 25.59-48.27 10.21 7.58 5.73-2.58 69.6-7.65 10.31 46.6-8.05q-.28 5.79-.58 11.58l-54.62 8.06-20.48 12.5 10-142.26h.1z,m233 284.79c-.12 2.44-.24 4.9-.36 7.36l-40.3 8.61-7.61-5.76z,m230.66 571.85 254.38-14.22 2.23 4.44-2.64 1.33-253.43 13.72-2.46-1.16z,
m229.06 364.82c-.12 2.6-.26 5.21-.38 7.8l-46.6 8.05 7.65-10.31z,m154 414.12 73.2-11.19c-.16 3.09-.31 6.16-.46 9.25l-53.89 8.06z,m226.69 412.18q-.94 18.51-1.88 37l-50.12 5.19 8.33 5.19-4.65 76.55-8.45 9.83 50.08-4.23q-.37 7-.74 13.91l-57.45 2.45-20.63 15.52 11.13-159.22 1.65-.25 18.84 6.12z,m224.82 449.17c-.11 2-.2 3.92-.31 5.89l-41.51 4.49-8.33-5.19z,
m675.62 580.65-77.78-18.32-1.19 4.14-3 10.43-3-12.64-.92-3.84-29.64-7-55.66 3.11-1.61 3.47-8 17.11-7.59-15-2.23-4.48-254.34 14.22-1.92 4.15-6.55 14-2.31-10.55-1.52-6.92.9-16.92q.38-6.95.74-13.91l.45-8.48q2.06-39 4.06-78.17c.11-2 .2-3.93.31-5.89q.93-18.5 1.88-37c.15-3.09.3-6.16.46-9.25.06-1.31.14-2.6.2-3.91q.36-7.41.74-14.82.28-5.79.58-11.58c.12-2.59.26-5.2.38-7.8q1.8-36.29 3.55-72.67c.12-2.46.24-4.92.36-7.36l1.22-25.59q.34-7.24.69-14.51c.06-1.5.14-3 .21-4.53l.45-9.62q.27-5.41.51-10.85c.14-2.86.27-5.73.4-8.59s.28-6 .42-9l3.5-1-17.92 366 336.83-19.08 141 34.4.17 4.13-18.65-4.39-1.93 9-.92 4.29z,
m216.66 595.54.82-15.56 2.4-.52 2.31 10.54 6.55-14.04 2.46 1.16.21 18z,m220.45 533.23-.45 8.48-50.07 4.22 8.45-9.83 42.06-2.87z,
m219.26 555.62-.9 16.92c0 .78-.08 1.54-.13 2.32l-76.83 6-.47-3.7.25-3.53 20.63-15.52z,
m182.62 107.17 299.96-107.17h12.42l-200.89 71.56-2.67.96-25.83 9.19v.01l-2.89 1.03-99.21 35.34v-3.27z,
m235.09 240.16-71.58 18.84h-.34l.34-4.91 20.2-10.69 51.83-12.83z,m163.51 259 71.58-18.84c-.07 1.52-.15 3-.21 4.53l-71.88 17.79h-.1l.24-3.5z,
m163.51 118.09 99.21-35.34-.13 2.87-89.52 31.79-9.73 3.1z,m162.92 583.12.11 17.94-11.36-.45-10.28-.39.45-15.89z,m158.41 188.38-3.43 47.15-23.01 7.15-3.39 45.59 23.08-7.09-23.08 317.56 1.29 1.09 11.52.39 10.28.39-9.52 139.65-56.7-7.17 10.85-159.25-17.61 1.43 27.44-371.13 52.27-15.76z,
m153 404.73 20.5-12.47 54.62-8.06q-.37 7.41-.74 14.82l-74.78 11.41z,m154 414.12-1.65.25.27-3.94 74.74-11.43c-.06 1.31-.14 2.6-.2 3.91z,
m141.4 580.82 76.83-6c.05-.78.09-1.54.13-2.32l1.52 6.92-2.4.52-54.56 3.14-21.08 1.21z,m152.31 414.37-11.13 159.22-.25 3.53.47 3.7.44 3.51-.45 15.89-11.52-.39-1.29-1.09 23.08-317.56 3.32-45.65 3.43-47.15 4.93-67.87 9.73-3.1-9.56 136.65-.34 4.91-.24 3.5-9.95 142.26-.4 5.7z
'''.split(",");
final _shapes = [
Shape(_data[0], '', const Color(0xffacd266),false),
Shape(_data[1], '', const Color(0xfffff),false),
Shape(_data[2], '', const Color(0xffed1e29),false),
Shape(_data[3], '', const Color(0xffacd266),false),
Shape(_data[4], '', const Color(0xfffff),false),
Shape(_data[5], '',const Color(0xfffff),false),
Shape(_data[6], '', const Color(0xffacd266),false),
Shape(_data[7], "", const Color(0xfffff),false),
Shape(_data[8], "",const Color(0xff0c8c44),false),
Shape(_data[9], "", const Color(0xffacd266),false),
Shape(_data[10], "", const Color(0xffacd266),false),
Shape(_data[11], "", const Color(0xffed1e29),false),
Shape(_data[12], "", const Color(0xff0c8c44),false),
Shape(_data[13], "", const Color(0xffc8c44),false),
Shape(_data[14], "", const Color(0xffacd266),false),
Shape(_data[15], "", const Color(0xffc8c44),false),
Shape(_data[16], "", const Color(0xffc8c44),false),
Shape(_data[17], "", const Color(0xfffff),false),
Shape(_data[18], "", const Color(0xffc8c44),false),
Shape(_data[19], "",const Color(0xffacd266),false),
Shape(_data[20], "", const Color(0xfffff),false),
Shape(_data[21], "", const Color(0xffacd266),false),
Shape(_data[22], "", const Color(0xffacd266),false),
Shape(_data[23], "", const Color(0xffacd266),false),
Shape(_data[24], "", const Color(0xfffff),false),
Shape(_data[25], "", const Color(0xffacd266),false),
Shape(_data[26], "", const Color(0xfffff),false),
Shape(_data[27], "", const Color(0xffacd266),false),
Shape(_data[28], "", const Color(0xffed1e29),false),
Shape(_data[29], "", const Color(0xff0c8c44),false),
Shape(_data[30], "", const Color(0xffed1e29),false),
Shape(_data[31], "", const Color(0xffed1e29),false),
Shape(_data[32], "", const Color(0xffed1e29),false),
Shape(_data[33], "", const Color(0xffacd266),false),
Shape(_data[34], "", const Color(0xffed1e29),false),
Shape(_data[35], "", const Color(0xffed1e29),false),
Shape(_data[36], "", const Color(0xffacd266),false),
Shape(_data[37], "", const Color(0xffed1e29),false),
Shape(_data[38], "", const Color(0xfffff),false),
Shape(_data[39], "", const Color(0xffacd266),false),
Shape(_data[40], "", const Color(0xffed1e29),false),
Shape(_data[41], "", const Color(0xffacd266),false),
Shape(_data[42], "", const Color(0xff0c8c44),false),
Shape(_data[43], "", const Color(0xff0c8c44),false),
Shape(_data[44], "", const Color(0xfffff),false),
Shape(_data[45], "", const Color(0xfffff),false),
Shape(_data[46], "", const Color(0xfffff),false),
Shape(_data[47], "", const Color(0xfffff),false),
Shape(_data[48], "", const Color(0xffacd266),false),
Shape(_data[49], "", const Color(0xffacd266),false),
Shape(_data[50], "", const Color(0xffed1e29),false),
Shape(_data[51], "", const Color(0xffed1e29),false),
Shape(_data[52], "", const Color(0xff0c8c44),false),
Shape(_data[53], "", const Color(0xffed1e29),false),
Shape(_data[54], "", const Color(0xff0c8c44),false),
Shape(_data[55], "", const Color(0xff0c8c44),false),
Shape(_data[56], "", const Color(0xfffff),false),
Shape(_data[57], "", const Color(0xfffff),false),
Shape(_data[58], "", const Color(0xffed1e29),false),
Shape(_data[59], "", const Color(0xffed1e29),false),
Shape(_data[60], "", const Color(0xffed1e29),false),
Shape(_data[61], "", const Color(0xffed1e29),false),
Shape(_data[62], "", const Color(0xffed1e29),false),
Shape(_data[63], "", const Color(0xffed1e29),false),
Shape(_data[64], "", const Color(0xffacd266),false),
Shape(_data[65], "", const Color(0xffacd266),false),
Shape(_data[66], "", const Color(0xfffff),false),
Shape(_data[67], "", const Color(0xffed1e29),false),
Shape(_data[68], "", const Color(0xffed1e29),false),
Shape(_data[69], "", const Color(0xffacd266),false),
Shape(_data[70], "", const Color(0xffed1e29),false),
Shape(_data[71], "", const Color(0xffacd266),false),
Shape(_data[72], "", const Color(0xfffff),false),
Shape(_data[73], "", const Color(0xffed1e29),false),
Shape(_data[74], "", const Color(0xffacd266),false),
Shape(_data[75], "", const Color(0xffed1e29),false),
Shape(_data[76], "", const Color(0xffed1e29),false),
Shape(_data[77], "", const Color(0xffacd266),false),
Shape(_data[78], "", const Color(0xffacd266),false),
Shape(_data[79], "", const Color(0xffacd266),false),
Shape(_data[80], "", const Color(0xfffff),false),
Shape(_data[81], "", const Color(0xffacd266),false),
Shape(_data[82], "", const Color(0xffacd266),false),
Shape(_data[83], "", const Color(0xffacd266),false),
Shape(_data[84], "", const Color(0xffacd266),false),
Shape(_data[85], "", const Color(0xfffff),false),
Shape(_data[86], "", const Color(0xffacd266),false),
Shape(_data[87], "", const Color(0xfffff),false),
Shape(_data[88], "", const Color(0xfffff),false),
Shape(_data[89], "", const Color(0xfffff),false),
Shape(_data[90], "", const Color(0xfffff),false),
Shape(_data[91], "", const Color(0xffed1e29),false),
Shape(_data[92], "", const Color(0xffacd266),false),
Shape(_data[93], "", const Color(0xffacd266),false),
Shape(_data[94], "", const Color(0xffacd266),false),
Shape(_data[95], "", const Color(0xfffff),false),
Shape(_data[96], "", const Color(0xffacd266),false),
Shape(_data[97], "", const Color(0xffacd266),false),
Shape(_data[98], "", const Color(0xffacd266),false),
Shape(_data[99], "", const Color(0xfffff),false),
Shape(_data[100], "", const Color(0xffacd266),false),
Shape(_data[101], "", const Color(0xffacd266),false),
Shape(_data[102], "", const Color(0xffacd266),false),
Shape(_data[103], "", const Color(0xfffff),false),
Shape(_data[104], "", const Color(0xffacd266),false),
Shape(_data[105], "", const Color(0xffacd266),false),
Shape(_data[106], "", const Color(0xfffff),false),
Shape(_data[107], "", const Color(0xffacd266),false),
Shape(_data[108], "", const Color(0xff0c8c44),false),
Shape(_data[109], "", const Color(0xffed1e29),false),
Shape(_data[110], "", const Color(0xffed1e29),false),
Shape(_data[111], "", const Color(0xffed1e29),false),
Shape(_data[112], "", const Color(0xffed1e29),false),
Shape(_data[113], "", const Color(0xffed1e29),false),
Shape(_data[114], "", const Color(0xffed1e29),false),
Shape(_data[115], "", const Color(0xffacd266),false),
Shape(_data[116], "", const Color(0xffed1e29),false),
Shape(_data[117], "", const Color(0xff0c8c44),false),
Shape(_data[118], "", const Color(0xffacd266),false),
Shape(_data[119], "", const Color(0xfffff),false),
];
final ValueNotifier<Offset> _notifier;
final Paint _paint = Paint();
Size _size = Size.zero;
@override
void paint(Canvas canvas, Size size) {
if (size != _size) {
_size = size;
final fs = applyBoxFit(BoxFit.contain, const Size(750.22101, 750.22101), size);
final r = Alignment.center.inscribe(fs.destination, Offset.zero & size);
final matrix = Matrix4.translationValues(r.left, r.top, 0)
..scale(fs.destination.width / fs.source.width);
for (var shape in _shapes) {
if(_shapes.isNotEmpty) {
shape.transform(matrix);
}
}
}
canvas
..clipRect(Offset.zero & size)
..drawColor(Colors.white, BlendMode.src);
List<Path>? selectedShape;
for (var shape in _shapes) {
final path = shape._transformedPath;
selected = path!.contains(_notifier.value);
_paint
..color = (selected == true ? _fillColor : shape.color)!
..style = PaintingStyle.fill;
canvas.drawPath(path, _paint);
// selectedShape ??= selected ? shape : null;
_paint
..color = Colors.black
..strokeWidth = 3
..style = PaintingStyle.stroke;
canvas.drawPath(path, _paint);
}
if (selected==true && _paint.color==const Color(0xffacd266)) {
_paint
..color = Colors.black
..maskFilter = const MaskFilter.blur(BlurStyle.outer, 12)
..style = PaintingStyle.fill;
Matrix4? matrix;
for(var e in selectedShape!) {
print("Vhitra aayo");
canvas.drawPath(e, _paint);
print("THis is e ${e}");
}
_paint.maskFilter = null;
final builder = ui.ParagraphBuilder(ui.ParagraphStyle(
fontSize: 32,
fontFamily: 'Roboto',
))
..pushStyle(ui.TextStyle(
color: Colors.white70,
shadows: kElevationToShadow[1]!+kElevationToShadow[2]!,
));
// ..addText(selectedShape._label);
final paragraph = builder.build()
..layout(ui.ParagraphConstraints(width: size.width));
canvas.drawParagraph(paragraph, _notifier.value.translate(0, -32));
}
}
@override
bool shouldRepaint(CustomPainter oldDelegate) => true;
}
#这是代码，唯一的问题是之前的颜色正在消失。我不希望发生这种情况。我想在房子的不同部分选择颜色，例如多种颜色和颜色颜色
问题：
当您更改形状颜色时，您不会保留此值。然后你 select 另一个形状和旧形状进入默认颜色。
建议：
我假设，您通过按钮 select 着色，然后单击形状并用 select 编辑的颜色填充这些形状。如果您第二次单击以使用相同的颜色塑造形状，那么形状 应该 return 为其默认颜色。否则，如果按钮上没有默认颜色，我们将永远不会返回默认颜色。
解决方案：
1- 改变你的形状 class。我们需要 selected 颜色、isSelected 参数、形状的默认颜色。
class Shape {
Shape(strPath, this.label, this.defaultColor, this.isSelected, this.selectedColor)
: _path = parseSvgPathData(strPath);
final Color? defaultColor;
bool isSelected=false;
Color? selectedColor;
...
形状示例
final _shapes = [
Shape(_data[0], '0', const Color(0xffacd266),false, null),
Shape(_data[1], '1', const Color(0x000fffff),false, null),
...
2- 不要在你的颜色选择 TextButtons 上使用 setState，我们不会需要这个，我们只需要设置 _fillColor 即可。
TextButton(
onPressed: () { _fillColor = Colors.brown; },
...
3- 更改 Paint 函数并在 Shape 上分配 isSelected 和 selectedColor。
canvas
..clipRect(Offset.zero & size)
..drawColor(Colors.white, BlendMode.src);
List<Path>? selectedShape;
for (var shape in _shapes) {
final path = shape._transformedPath;
selected = path!.contains(_notifier.value);
if(selected == true){
// if shape selected before and try to fill with same color again,
// i assume that this means back to the default color,
// otherwise we never go back to default color if default colors not on buttons
if(shape.isSelected == true && shape.selectedColor == _fillColor){
shape.isSelected = false;
shape.selectedColor = null;
}else{
shape.isSelected = selected;
shape.selectedColor = _fillColor;
}
}
_paint
// if selected then selected color otherwise default color
..color = (shape.isSelected == true ? shape.selectedColor : shape.defaultColor)!
..style = PaintingStyle.fill;
canvas.drawPath(path, _paint);
我测试了它，它似乎可以工作。让我知道它是否有效:)
我可以给房子上色，但问题是当我尝试给不同的部分上色时，先前的颜色正在消失。但是当我尝试在不同的部分着色时，颜色被删除了。我已经尝试了我能想到的一切，但我无法得到它需要一些帮助
Color _fillColor = Colors.cyan;
bool selected = true;
class houseFiller extends StatefulWidget {
@override
State<houseFiller> createState() => _houseFillerState();
}
class _houseFillerState extends State<houseFiller> {
final notifier = ValueNotifier(Offset.zero);
@override
Widget build(BuildContext context) {
return Listener(
onPointerDown: (e) => notifier.value = e.localPosition,
onPointerMove: (e) => notifier.value = e.localPosition,
child: Column(
children: [
TextButton(
onPressed: () {
setState(() {
_fillColor = Colors.brown;
});
},
child: const Text(
"Brown",
style: TextStyle(color: Colors.black),
),
style: ButtonStyle(
backgroundColor: MaterialStateProperty.all(Colors.brown)),
),
TextButton(
onPressed: () {
setState(() {
_fillColor = Colors.amber;
});
},
child: const Text(
"Amber",
style: TextStyle(color: Colors.black),
),
style: ButtonStyle(
backgroundColor: MaterialStateProperty.all(Colors.amber)),
),
TextButton(
onPressed: () {
setState(() {
_fillColor = Colors.cyan;
});
},
child: const Text(
"Cyan",
style: const TextStyle(color: Colors.black),
),
style: ButtonStyle(
backgroundColor: MaterialStateProperty.all(Colors.cyan)),
),
SizedBox(
height: 500,
width: 500,
child: CustomPaint(
painter: houseFillerPainter(notifier),
child: const SizedBox.expand(),
),
),
],
),
);
}
Offset toLocal(BuildContext context, Offset position) {
RenderBox renderBox = context.findRenderObject() as RenderBox;
return renderBox.globalToLocal(position);
}
}
class Shape {
Shape(strPath, this.label, this.color,this.selected) : _path = parseSvgPathData(strPath);
/// transforms a [_path] into [_transformedPath] using given [matrix]
void transform(Matrix4 matrix) => _transformedPath = _path.transform(matrix.storage);
final Path _path;
Path? _transformedPath;
final String? label;
final Color? color;
bool selected=false;
}
class houseFillerPainter extends CustomPainter {
houseFillerPainter(this._notifier) : super(repaint: _notifier);
static final _data =
'''m829.35 691.34.96 21.77h-33.58l-1.01-23z,m829.35 691.34-33.63-1.23 4.15-2.05 34.26 1.03 1.37 22.38-5.19 1.64z,
m818.5 506v7l-20.53.49 16.34-1.82s-.41-8.7 0-8.29 4.19 2.62 4.19 2.62z,m810.96 497.49-39.34-25.66v-2.25l47.98 31.72.13 1.92-5.82-3.81-1.55 7.79z,
m810.53 462.36.91 16.29-4.37-2.75-.58-12.26z,m810.01 500.25v9.52l-22.5 1.84-.7-10.22z,m810.01 500.25-23.2 1.14-1.13-16.46z,
m802.04 311.49 6.31 8.56-32.84 5.78-.45-9.98.13-.01z,m802.04 311.49-26.85 4.35-.13.01-.23-4.92.19-.01 24.48-2.86z,m773.08 272.22 26.42 35.84-24.48 2.86-.19.01z,
m808.35 305.61-20.19-25.76 3.12-2.45 4.22 4.83 2.94 3.38.67-17.55 9.24 12.03z,m797.97 513.53-10.25 1.14-.21-3.06 22.5-1.84 4.3 1.94z,
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m675.62 580.65-77.78-18.32-1.19 4.14-3 10.43-3-12.64-.92-3.84-29.64-7-55.66 3.11-1.61 3.47-8 17.11-7.59-15-2.23-4.48-254.34 14.22-1.92 4.15-6.55 14-2.31-10.55-1.52-6.92.9-16.92q.38-6.95.74-13.91l.45-8.48q2.06-39 4.06-78.17c.11-2 .2-3.93.31-5.89q.93-18.5 1.88-37c.15-3.09.3-6.16.46-9.25.06-1.31.14-2.6.2-3.91q.36-7.41.74-14.82.28-5.79.58-11.58c.12-2.59.26-5.2.38-7.8q1.8-36.29 3.55-72.67c.12-2.46.24-4.92.36-7.36l1.22-25.59q.34-7.24.69-14.51c.06-1.5.14-3 .21-4.53l.45-9.62q.27-5.41.51-10.85c.14-2.86.27-5.73.4-8.59s.28-6 .42-9l3.5-1-17.92 366 336.83-19.08 141 34.4.17 4.13-18.65-4.39-1.93 9-.92 4.29z,
m216.66 595.54.82-15.56 2.4-.52 2.31 10.54 6.55-14.04 2.46 1.16.21 18z,m220.45 533.23-.45 8.48-50.07 4.22 8.45-9.83 42.06-2.87z,
m219.26 555.62-.9 16.92c0 .78-.08 1.54-.13 2.32l-76.83 6-.47-3.7.25-3.53 20.63-15.52z,
m182.62 107.17 299.96-107.17h12.42l-200.89 71.56-2.67.96-25.83 9.19v.01l-2.89 1.03-99.21 35.34v-3.27z,
m235.09 240.16-71.58 18.84h-.34l.34-4.91 20.2-10.69 51.83-12.83z,m163.51 259 71.58-18.84c-.07 1.52-.15 3-.21 4.53l-71.88 17.79h-.1l.24-3.5z,
m163.51 118.09 99.21-35.34-.13 2.87-89.52 31.79-9.73 3.1z,m162.92 583.12.11 17.94-11.36-.45-10.28-.39.45-15.89z,m158.41 188.38-3.43 47.15-23.01 7.15-3.39 45.59 23.08-7.09-23.08 317.56 1.29 1.09 11.52.39 10.28.39-9.52 139.65-56.7-7.17 10.85-159.25-17.61 1.43 27.44-371.13 52.27-15.76z,
m153 404.73 20.5-12.47 54.62-8.06q-.37 7.41-.74 14.82l-74.78 11.41z,m154 414.12-1.65.25.27-3.94 74.74-11.43c-.06 1.31-.14 2.6-.2 3.91z,
m141.4 580.82 76.83-6c.05-.78.09-1.54.13-2.32l1.52 6.92-2.4.52-54.56 3.14-21.08 1.21z,m152.31 414.37-11.13 159.22-.25 3.53.47 3.7.44 3.51-.45 15.89-11.52-.39-1.29-1.09 23.08-317.56 3.32-45.65 3.43-47.15 4.93-67.87 9.73-3.1-9.56 136.65-.34 4.91-.24 3.5-9.95 142.26-.4 5.7z
'''.split(",");
final _shapes = [
Shape(_data[0], '', const Color(0xffacd266),false),
Shape(_data[1], '', const Color(0xfffff),false),
Shape(_data[2], '', const Color(0xffed1e29),false),
Shape(_data[3], '', const Color(0xffacd266),false),
Shape(_data[4], '', const Color(0xfffff),false),
Shape(_data[5], '',const Color(0xfffff),false),
Shape(_data[6], '', const Color(0xffacd266),false),
Shape(_data[7], "", const Color(0xfffff),false),
Shape(_data[8], "",const Color(0xff0c8c44),false),
Shape(_data[9], "", const Color(0xffacd266),false),
Shape(_data[10], "", const Color(0xffacd266),false),
Shape(_data[11], "", const Color(0xffed1e29),false),
Shape(_data[12], "", const Color(0xff0c8c44),false),
Shape(_data[13], "", const Color(0xffc8c44),false),
Shape(_data[14], "", const Color(0xffacd266),false),
Shape(_data[15], "", const Color(0xffc8c44),false),
Shape(_data[16], "", const Color(0xffc8c44),false),
Shape(_data[17], "", const Color(0xfffff),false),
Shape(_data[18], "", const Color(0xffc8c44),false),
Shape(_data[19], "",const Color(0xffacd266),false),
Shape(_data[20], "", const Color(0xfffff),false),
Shape(_data[21], "", const Color(0xffacd266),false),
Shape(_data[22], "", const Color(0xffacd266),false),
Shape(_data[23], "", const Color(0xffacd266),false),
Shape(_data[24], "", const Color(0xfffff),false),
Shape(_data[25], "", const Color(0xffacd266),false),
Shape(_data[26], "", const Color(0xfffff),false),
Shape(_data[27], "", const Color(0xffacd266),false),
Shape(_data[28], "", const Color(0xffed1e29),false),
Shape(_data[29], "", const Color(0xff0c8c44),false),
Shape(_data[30], "", const Color(0xffed1e29),false),
Shape(_data[31], "", const Color(0xffed1e29),false),
Shape(_data[32], "", const Color(0xffed1e29),false),
Shape(_data[33], "", const Color(0xffacd266),false),
Shape(_data[34], "", const Color(0xffed1e29),false),
Shape(_data[35], "", const Color(0xffed1e29),false),
Shape(_data[36], "", const Color(0xffacd266),false),
Shape(_data[37], "", const Color(0xffed1e29),false),
Shape(_data[38], "", const Color(0xfffff),false),
Shape(_data[39], "", const Color(0xffacd266),false),
Shape(_data[40], "", const Color(0xffed1e29),false),
Shape(_data[41], "", const Color(0xffacd266),false),
Shape(_data[42], "", const Color(0xff0c8c44),false),
Shape(_data[43], "", const Color(0xff0c8c44),false),
Shape(_data[44], "", const Color(0xfffff),false),
Shape(_data[45], "", const Color(0xfffff),false),
Shape(_data[46], "", const Color(0xfffff),false),
Shape(_data[47], "", const Color(0xfffff),false),
Shape(_data[48], "", const Color(0xffacd266),false),
Shape(_data[49], "", const Color(0xffacd266),false),
Shape(_data[50], "", const Color(0xffed1e29),false),
Shape(_data[51], "", const Color(0xffed1e29),false),
Shape(_data[52], "", const Color(0xff0c8c44),false),
Shape(_data[53], "", const Color(0xffed1e29),false),
Shape(_data[54], "", const Color(0xff0c8c44),false),
Shape(_data[55], "", const Color(0xff0c8c44),false),
Shape(_data[56], "", const Color(0xfffff),false),
Shape(_data[57], "", const Color(0xfffff),false),
Shape(_data[58], "", const Color(0xffed1e29),false),
Shape(_data[59], "", const Color(0xffed1e29),false),
Shape(_data[60], "", const Color(0xffed1e29),false),
Shape(_data[61], "", const Color(0xffed1e29),false),
Shape(_data[62], "", const Color(0xffed1e29),false),
Shape(_data[63], "", const Color(0xffed1e29),false),
Shape(_data[64], "", const Color(0xffacd266),false),
Shape(_data[65], "", const Color(0xffacd266),false),
Shape(_data[66], "", const Color(0xfffff),false),
Shape(_data[67], "", const Color(0xffed1e29),false),
Shape(_data[68], "", const Color(0xffed1e29),false),
Shape(_data[69], "", const Color(0xffacd266),false),
Shape(_data[70], "", const Color(0xffed1e29),false),
Shape(_data[71], "", const Color(0xffacd266),false),
Shape(_data[72], "", const Color(0xfffff),false),
Shape(_data[73], "", const Color(0xffed1e29),false),
Shape(_data[74], "", const Color(0xffacd266),false),
Shape(_data[75], "", const Color(0xffed1e29),false),
Shape(_data[76], "", const Color(0xffed1e29),false),
Shape(_data[77], "", const Color(0xffacd266),false),
Shape(_data[78], "", const Color(0xffacd266),false),
Shape(_data[79], "", const Color(0xffacd266),false),
Shape(_data[80], "", const Color(0xfffff),false),
Shape(_data[81], "", const Color(0xffacd266),false),
Shape(_data[82], "", const Color(0xffacd266),false),
Shape(_data[83], "", const Color(0xffacd266),false),
Shape(_data[84], "", const Color(0xffacd266),false),
Shape(_data[85], "", const Color(0xfffff),false),
Shape(_data[86], "", const Color(0xffacd266),false),
Shape(_data[87], "", const Color(0xfffff),false),
Shape(_data[88], "", const Color(0xfffff),false),
Shape(_data[89], "", const Color(0xfffff),false),
Shape(_data[90], "", const Color(0xfffff),false),
Shape(_data[91], "", const Color(0xffed1e29),false),
Shape(_data[92], "", const Color(0xffacd266),false),
Shape(_data[93], "", const Color(0xffacd266),false),
Shape(_data[94], "", const Color(0xffacd266),false),
Shape(_data[95], "", const Color(0xfffff),false),
Shape(_data[96], "", const Color(0xffacd266),false),
Shape(_data[97], "", const Color(0xffacd266),false),
Shape(_data[98], "", const Color(0xffacd266),false),
Shape(_data[99], "", const Color(0xfffff),false),
Shape(_data[100], "", const Color(0xffacd266),false),
Shape(_data[101], "", const Color(0xffacd266),false),
Shape(_data[102], "", const Color(0xffacd266),false),
Shape(_data[103], "", const Color(0xfffff),false),
Shape(_data[104], "", const Color(0xffacd266),false),
Shape(_data[105], "", const Color(0xffacd266),false),
Shape(_data[106], "", const Color(0xfffff),false),
Shape(_data[107], "", const Color(0xffacd266),false),
Shape(_data[108], "", const Color(0xff0c8c44),false),
Shape(_data[109], "", const Color(0xffed1e29),false),
Shape(_data[110], "", const Color(0xffed1e29),false),
Shape(_data[111], "", const Color(0xffed1e29),false),
Shape(_data[112], "", const Color(0xffed1e29),false),
Shape(_data[113], "", const Color(0xffed1e29),false),
Shape(_data[114], "", const Color(0xffed1e29),false),
Shape(_data[115], "", const Color(0xffacd266),false),
Shape(_data[116], "", const Color(0xffed1e29),false),
Shape(_data[117], "", const Color(0xff0c8c44),false),
Shape(_data[118], "", const Color(0xffacd266),false),
Shape(_data[119], "", const Color(0xfffff),false),
];
final ValueNotifier<Offset> _notifier;
final Paint _paint = Paint();
Size _size = Size.zero;
@override
void paint(Canvas canvas, Size size) {
if (size != _size) {
_size = size;
final fs = applyBoxFit(BoxFit.contain, const Size(750.22101, 750.22101), size);
final r = Alignment.center.inscribe(fs.destination, Offset.zero & size);
final matrix = Matrix4.translationValues(r.left, r.top, 0)
..scale(fs.destination.width / fs.source.width);
for (var shape in _shapes) {
if(_shapes.isNotEmpty) {
shape.transform(matrix);
}
}
}
canvas
..clipRect(Offset.zero & size)
..drawColor(Colors.white, BlendMode.src);
List<Path>? selectedShape;
for (var shape in _shapes) {
final path = shape._transformedPath;
selected = path!.contains(_notifier.value);
_paint
..color = (selected == true ? _fillColor : shape.color)!
..style = PaintingStyle.fill;
canvas.drawPath(path, _paint);
// selectedShape ??= selected ? shape : null;
_paint
..color = Colors.black
..strokeWidth = 3
..style = PaintingStyle.stroke;
canvas.drawPath(path, _paint);
}
if (selected==true && _paint.color==const Color(0xffacd266)) {
_paint
..color = Colors.black
..maskFilter = const MaskFilter.blur(BlurStyle.outer, 12)
..style = PaintingStyle.fill;
Matrix4? matrix;
for(var e in selectedShape!) {
print("Vhitra aayo");
canvas.drawPath(e, _paint);
print("THis is e ${e}");
}
_paint.maskFilter = null;
final builder = ui.ParagraphBuilder(ui.ParagraphStyle(
fontSize: 32,
fontFamily: 'Roboto',
))
..pushStyle(ui.TextStyle(
color: Colors.white70,
shadows: kElevationToShadow[1]!+kElevationToShadow[2]!,
));
// ..addText(selectedShape._label);
final paragraph = builder.build()
..layout(ui.ParagraphConstraints(width: size.width));
canvas.drawParagraph(paragraph, _notifier.value.translate(0, -32));
}
}
@override
bool shouldRepaint(CustomPainter oldDelegate) => true;
}
#这是代码，唯一的问题是之前的颜色正在消失。我不希望发生这种情况。我想在房子的不同部分选择颜色，例如多种颜色和颜色颜色
问题：
当您更改形状颜色时，您不会保留此值。然后你 select 另一个形状和旧形状进入默认颜色。
建议：
我假设，您通过按钮 select 着色，然后单击形状并用 select 编辑的颜色填充这些形状。如果您第二次单击以使用相同的颜色塑造形状，那么形状 应该 return 为其默认颜色。否则，如果按钮上没有默认颜色，我们将永远不会返回默认颜色。
解决方案：
1- 改变你的形状 class。我们需要 selected 颜色、isSelected 参数、形状的默认颜色。
class Shape {
Shape(strPath, this.label, this.defaultColor, this.isSelected, this.selectedColor)
: _path = parseSvgPathData(strPath);
final Color? defaultColor;
bool isSelected=false;
Color? selectedColor;
...
形状示例
final _shapes = [
Shape(_data[0], '0', const Color(0xffacd266),false, null),
Shape(_data[1], '1', const Color(0x000fffff),false, null),
...
2- 不要在你的颜色选择 TextButtons 上使用 setState，我们不会需要这个，我们只需要设置 _fillColor 即可。
TextButton(
onPressed: () { _fillColor = Colors.brown; },
...
3- 更改 Paint 函数并在 Shape 上分配 isSelected 和 selectedColor。
canvas
..clipRect(Offset.zero & size)
..drawColor(Colors.white, BlendMode.src);
List<Path>? selectedShape;
for (var shape in _shapes) {
final path = shape._transformedPath;
selected = path!.contains(_notifier.value);
if(selected == true){
// if shape selected before and try to fill with same color again,
// i assume that this means back to the default color,
// otherwise we never go back to default color if default colors not on buttons
if(shape.isSelected == true && shape.selectedColor == _fillColor){
shape.isSelected = false;
shape.selectedColor = null;
}else{
shape.isSelected = selected;
shape.selectedColor = _fillColor;
}
}
_paint
// if selected then selected color otherwise default color
..color = (shape.isSelected == true ? shape.selectedColor : shape.defaultColor)!
..style = PaintingStyle.fill;
canvas.drawPath(path, _paint);
我测试了它，它似乎可以工作。让我知道它是否有效:)