extend widget events sample
* track mouse buttons * add Button widget with events
This commit is contained in:
Vsevolod Kukol
Родитель
b757a5e814
Коммит
648fc551ce
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@ -31,50 +31,151 @@ namespace Samples
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{
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public class WidgetEvents: VBox
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{
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Label laLeft = new Label ("Left");
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Label laMiddle = new Label ("Middle");
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Label laRight = new Label ("Right");
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Label la = new Label ("Move the mouse here");
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Label res = new Label ("");
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bool inside = false;
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bool moved = false;
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Label res1 = new Label ("");
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bool insideLabel;
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bool movingOverLabel;
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bool movedOverLabel;
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Button btn = new Button ("Move the mouse here");
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Label res2 = new Label ("");
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bool insideButton;
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bool movedOverButton;
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bool movingOverButton;
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public WidgetEvents ()
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{
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PackStart (la);
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PackStart (res);
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laLeft.BackgroundColor = Colors.White;
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laMiddle.BackgroundColor = Colors.White;
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laRight.BackgroundColor = Colors.White;
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la.MouseEntered += delegate {
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inside = true;
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Application.TimeoutInvoke (100, CheckMouse);
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var mouseBtnBox = new HBox ();
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mouseBtnBox.PackStart (new Label("Mouse butons:"));
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mouseBtnBox.PackStart (laLeft);
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mouseBtnBox.PackStart (laMiddle);
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mouseBtnBox.PackStart (laRight);
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PackStart (mouseBtnBox);
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PackStart (la);
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PackStart (res1);
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la.MouseEntered += (sender, e) => {
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insideLabel = true;
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Application.TimeoutInvoke (100, CheckMouseOverLabel);
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Console.WriteLine ("[" + sender + "] Mouse Entered");
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};
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la.MouseExited += delegate {
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inside = false;
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la.MouseExited += (sender, e) => {
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insideLabel = false;
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Console.WriteLine ("[" + sender + "] Mouse Exited");
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};
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la.MouseMoved += delegate {
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moved = true;
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la.MouseMoved += (sender, e) => movedOverLabel = true;
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la.ButtonPressed += HandleButtonPressed;
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la.ButtonReleased += HandleButtonReleased;
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la.MouseScrolled += HandleMouseScrolled;
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PackStart (btn);
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PackStart (res2);
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btn.MouseEntered += (sender, e) => {
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insideButton = true;
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Application.TimeoutInvoke (100, CheckMouseOverButton);
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Console.WriteLine ("[" + sender + "] Mouse Entered");
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};
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btn.MouseExited += (sender, e) => {
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insideButton = false;
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Console.WriteLine ("[" + sender + "] Mouse Exited");
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};
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btn.MouseMoved += (sender, e) => movedOverButton = true;
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btn.ButtonPressed += HandleButtonPressed;
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btn.ButtonReleased += HandleButtonReleased;
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btn.Clicked += (sender, e) => {
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res2.Text = "Button Clicked";
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Console.WriteLine ("[" + sender + "] Clicked");
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};
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}
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bool CheckMouse ()
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void HandleMouseScrolled (object sender, MouseScrolledEventArgs e)
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{
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if (!inside) {
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res.Text = "Mouse has Exited label";
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var msg = "Scrolled " + e.Direction + ": " + e.Position + " " + e.X + "x" + e.Y + " " + e.Timestamp;
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if (sender == la)
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res1.Text = msg;
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if (sender == btn)
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res2.Text = msg;
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Console.WriteLine (msg);
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}
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void HandleButtonPressed (object sender, ButtonEventArgs e)
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{
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switch (e.Button) {
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case PointerButton.Left: laLeft.BackgroundColor = Colors.Green; break;
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case PointerButton.Middle: laMiddle.BackgroundColor = Colors.Green; break;
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case PointerButton.Right: laRight.BackgroundColor = Colors.Green; break;
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}
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Console.WriteLine ("[" + sender + "] ButtonPressed : " + e.MultiplePress + "x " + e.Button + " ");
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}
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void HandleButtonReleased (object sender, ButtonEventArgs e)
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{
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switch (e.Button) {
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case PointerButton.Left: laLeft.BackgroundColor = Colors.White; break;
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case PointerButton.Middle: laMiddle.BackgroundColor = Colors.White; break;
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case PointerButton.Right: laRight.BackgroundColor = Colors.White; break;
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}
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Console.WriteLine ("[" + sender + "] ButtonReleased : " + e.MultiplePress + "x " + e.Button + " ");
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}
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bool CheckMouseOverButton ()
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{
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if (!insideButton) {
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res2.Text = "Mouse has Exited Button";
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btn.Label = "Move the mouse here";
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} else {
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res2.Text = "Mouse has Entered Button";
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if (movedOverButton) {
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btn.Label = "Mouse is moving";
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Console.WriteLine ("[" + btn.GetType () + "] Mouse Moving");
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movedOverButton = false; // reset and check next time
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movingOverButton = true;
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} else if (movingOverButton) {
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btn.Label = "Mouse has stopped";
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Console.WriteLine ("[" + btn.GetType () + "] Mouse Stopped");
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movingOverButton = false; // reset and check next time
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}
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}
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return insideButton;
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}
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bool CheckMouseOverLabel ()
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{
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if (!insideLabel) {
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res1.Text = "Mouse has Exited label";
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la.TextColor = Colors.Black;
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la.BackgroundColor = Colors.LightGray;
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la.Text = "Move the mouse here";
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} else {
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res.Text = "Mouse has Entered label";
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res1.Text = "Mouse has Entered label";
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la.TextColor = Colors.White;
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if (moved) {
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if (movedOverLabel) {
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la.BackgroundColor = Colors.Green;
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la.Text = "Mouse is moving";
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moved = false; // reset and check next time
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} else {
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Console.WriteLine ("[" + btn.GetType () + "] Mouse Moving");
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movedOverLabel = false; // reset and check next time
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movingOverLabel = true;
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} else if (movingOverLabel) {
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la.BackgroundColor = Colors.Red;
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la.Text = "Mouse has stopped";
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Console.WriteLine ("[" + btn.GetType () + "] Mouse Stopped");
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movingOverLabel = false;
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}
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}
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return inside;
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return insideLabel;
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}
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}
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}
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