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Graphs_dart
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работа с цветом

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Морозов Андрей 2021-11-09 04:15:36 +04:00
parent 5fc5f8b3d8
commit 2422274ea3
2 changed files with 13 additions and 6 deletions
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13
flutter/lib/pages/drawing_page.dart
View File

@ -11,7 +11,7 @@ Graphs getGraph() {
d.add(Dot.fromTwoLists("3", [1, 2], [1, 2])); d.add(Dot.fromTwoLists("3", [1, 2], [1, 2]));
//d.add(Dot.fromTwoLists("Name1", [], [])); //d.add(Dot.fromTwoLists("Name1", [], []));
//d.add(Dot.fromTwoLists("Name2", [], [])); //d.add(Dot.fromTwoLists("Name2", [], []));
return Graphs.fromList("UMYA", d, true, true); return Graphs.fromList("Имя", d, true, true);
} }
class DrawingPage extends StatefulWidget { class DrawingPage extends StatefulWidget {
@ -57,7 +57,7 @@ class _DrawingPageState extends State<DrawingPage> {
))), ))),
toolbarHeight: 110, toolbarHeight: 110,
flexibleSpace: Container( flexibleSpace: Container(
color: Colors.blue, color: Colors.green.shade900,
child: Column(children: <Widget>[ child: Column(children: <Widget>[
const SizedBox(height: 5), const SizedBox(height: 5),
Row(children: [ Row(children: [
@ -148,10 +148,13 @@ class _DrawingPageState extends State<DrawingPage> {
ElevatedButton createButton(String txt, void onPressing()) { ElevatedButton createButton(String txt, void onPressing()) {
return ElevatedButton( return ElevatedButton(
onPressed: onPressing, onPressed: onPressing,
style: ButtonStyle(
backgroundColor: MaterialStateProperty.resolveWith<Color>(
(states) => Colors.green.shade700)),
child: Text(txt, child: Text(txt,
style: const TextStyle( style: const TextStyle(
fontSize: 15, fontSize: 15,
color: Colors.white, color: Colors.white70,
height: 1, height: 1,
)), )),
); );
@ -244,7 +247,7 @@ class _DrawingPageState extends State<DrawingPage> {
if (_textNumbController.text == "") { if (_textNumbController.text == "") {
showPopUp("Error", "No number in \"Dot number\" box"); showPopUp("Error", "No number in \"Dot number\" box");
} else if (_textDestController.text == "") { } else if (_textDestController.text == "") {
showPopUp("Error", "No name in \"Destination number\" box"); showPopUp("Error", "No number in \"Destination number\" box");
} else if (_textLnthController.text == "" && } else if (_textLnthController.text == "" &&
graphData.getUseLengthBool()) { graphData.getUseLengthBool()) {
showPopUp("Error", "No length in \"Input length\" box"); showPopUp("Error", "No length in \"Input length\" box");
@ -368,7 +371,7 @@ class _DrawingPageState extends State<DrawingPage> {
if (_textNumbController.text == "") { if (_textNumbController.text == "") {
showPopUp("Error", "No number in \"Dot number\" box"); showPopUp("Error", "No number in \"Dot number\" box");
} else if (_textDestController.text == "") { } else if (_textDestController.text == "") {
showPopUp("Error", "No name in \"Destination number\" box"); showPopUp("Error", "No number in \"Destination number\" box");
} else { } else {
int? from = int.tryParse(_textNumbController.text); int? from = int.tryParse(_textNumbController.text);
int? to = int.tryParse(_textDestController.text); int? to = int.tryParse(_textDestController.text);

6
flutter/lib/src/graph.dart
View File

@ -537,7 +537,7 @@ class Graphs {
} }
//************Алгоритмы************ //************Алгоритмы************
/* bool bfsHasPath(int startDot, int goalDot) { /* bool bfsHasPath(int startDot, int goalDot) {
// обход в ширину // обход в ширину
startDot--; startDot--;
goalDot--; goalDot--;
@ -629,21 +629,25 @@ class Graphs {
List<bool>? dfsIterative(int v) { List<bool>? dfsIterative(int v) {
v--; v--;
//List<int>? pos = <int>[];
List<bool> label = <bool>[]; List<bool> label = <bool>[];
for (int i = 0; i < _amount; i++) { for (int i = 0; i < _amount; i++) {
label.add(false); label.add(false);
} }
List<int> stack = <int>[]; List<int> stack = <int>[];
stack.add(v); stack.add(v);
//pos.add(v);
while (stack.isNotEmpty) { while (stack.isNotEmpty) {
v = stack.removeLast(); v = stack.removeLast();
if (!label[v]) { if (!label[v]) {
label[v] = true; label[v] = true;
for (int i in _dots[v].getL().keys) { for (int i in _dots[v].getL().keys) {
stack.add(i - 1); stack.add(i - 1);
//pos.add(i);
} }
} }
} }
//print(pos);
return label; return label;
} }