mirror of
https://github.com/Leonmmcoset/CMLeonOS.git
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130 lines
4.1 KiB
C#
130 lines
4.1 KiB
C#
// The CMLeonOS Project (https://github.com/Leonmmcoset/CMLeonOS)
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// Copyright (C) 2025-present LeonOS 2 Developer Team
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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using Cosmos.System;
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using System;
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using System.Drawing;
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namespace CMLeonOS.Gui.UILib
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{
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internal class Switch : CheckBox
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{
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public Switch(Window parent, int x, int y, int width, int height) : base(parent, x, y, width, height)
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{
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OnDown = SwitchDown;
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OnClick = null;
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}
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private const int maximumToggleDrag = 4;
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private const int switchWidth = 34;
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private const int switchHeight = 18;
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private const int knobSize = 14;
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private int lastMouseX = 0;
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private int totalDragged = 0;
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private bool held = false;
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private void SwitchDown(int x, int y)
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{
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lastMouseX = (int)MouseManager.X;
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totalDragged = 0;
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held = true;
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Render();
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}
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private void Release()
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{
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held = false;
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if (totalDragged <= maximumToggleDrag)
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{
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// Interpret as a toggle.
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Checked = !Checked;
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}
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else
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{
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// Interpret as a drag rather than a toggle,
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// setting the Checked state based on where
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// the switch knob is.
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Checked = knobX >= (switchWidth - knobSize) / 2d;
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}
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}
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private double knobX = -1;
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private double knobGoal = 0;
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internal override void Render()
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{
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knobGoal = Checked ? switchWidth - knobSize : 0;
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if (held && MouseManager.MouseState != MouseState.Left)
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{
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Release();
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}
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if (held)
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{
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int diff = (int)(MouseManager.X - lastMouseX);
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lastMouseX = (int)MouseManager.X;
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totalDragged += Math.Abs(diff);
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knobX = Math.Clamp(knobX + diff, 0, switchWidth - knobSize);
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WM.UpdateQueue.Enqueue(this);
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}
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else
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{
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double oldKnobX = knobX;
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if (knobX == -1)
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{
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knobX = knobGoal;
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}
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else
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{
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double diff = knobGoal - knobX;
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double move = diff / 8d;
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knobX += move;
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}
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if (Math.Abs(knobX - oldKnobX) < 0.25)
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{
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knobX = knobGoal;
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}
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else
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{
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WM.UpdateQueue.Enqueue(this);
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}
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}
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Clear(Background);
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int switchX = 0;
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int switchY = (Height / 2) - (switchHeight / 2);
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int textX = switchWidth + 8;
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int textY = (Height / 2) - (16 / 2);
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DrawFilledRectangle(switchX, switchY, switchWidth, switchHeight, Checked ? UITheme.Accent : UITheme.SurfaceMuted);
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DrawRectangle(switchX, switchY, switchWidth, switchHeight, Checked ? UITheme.AccentDark : UITheme.SurfaceBorder);
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int knobY = switchY + ((switchHeight - knobSize) / 2);
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DrawFilledRectangle((int)knobX + 1, knobY, knobSize, knobSize, Color.White);
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DrawRectangle((int)knobX + 1, knobY, knobSize, knobSize, UITheme.SurfaceBorder);
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DrawString(Text, Foreground, textX, textY);
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WM.Update(this);
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}
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}
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}
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