140 lines
3.4 KiB
C#
140 lines
3.4 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2015 The OpenRA Developers (see AUTHORS)
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* This file is part of OpenRA, which is free software. It is made
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* available to you under the terms of the GNU General Public License
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* as published by the Free Software Foundation. For more information,
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* see COPYING.
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*/
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#endregion
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using System;
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using System.Drawing;
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using System.Linq;
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using OpenRA.Widgets;
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namespace OpenRA.Mods.Common.Widgets
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{
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public class HotkeyEntryWidget : Widget
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{
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public Hotkey Key;
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public int VisualHeight = 1;
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public int LeftMargin = 5;
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public int RightMargin = 5;
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public Action OnLoseFocus = () => { };
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public Func<bool> IsDisabled = () => false;
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public string Font = ChromeMetrics.Get<string>("HotkeyFont");
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public Color TextColor = ChromeMetrics.Get<Color>("HotkeyColor");
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public Color TextColorDisabled = ChromeMetrics.Get<Color>("HotkeyColorDisabled");
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public HotkeyEntryWidget() { }
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protected HotkeyEntryWidget(HotkeyEntryWidget widget)
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: base(widget)
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{
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Font = widget.Font;
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TextColor = widget.TextColor;
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TextColorDisabled = widget.TextColorDisabled;
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VisualHeight = widget.VisualHeight;
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}
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public override bool YieldKeyboardFocus()
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{
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OnLoseFocus();
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return base.YieldKeyboardFocus();
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}
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public override bool HandleMouseInput(MouseInput mi)
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{
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if (IsDisabled())
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return false;
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if (mi.Event != MouseInputEvent.Down)
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return false;
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// Attempt to take keyboard focus
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if (!RenderBounds.Contains(mi.Location) || !TakeKeyboardFocus())
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return false;
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blinkCycle = 15;
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return true;
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}
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static readonly Keycode[] IgnoreKeys = new Keycode[]
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{
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Keycode.RSHIFT, Keycode.LSHIFT,
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Keycode.RCTRL, Keycode.LCTRL,
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Keycode.RALT, Keycode.LALT,
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Keycode.RGUI, Keycode.LGUI
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};
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public override bool HandleKeyPress(KeyInput e)
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{
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if (IsDisabled() || e.Event == KeyInputEvent.Up)
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return false;
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if (!HasKeyboardFocus || IgnoreKeys.Contains(e.Key))
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return false;
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Key = Hotkey.FromKeyInput(e);
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return true;
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}
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protected int blinkCycle = 15;
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protected bool showEntry = true;
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public override void Tick()
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{
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if (HasKeyboardFocus && --blinkCycle <= 0)
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{
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blinkCycle = 15;
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showEntry ^= true;
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}
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}
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public override void Draw()
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{
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var apparentText = Key.DisplayString();
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var font = Game.Renderer.Fonts[Font];
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var pos = RenderOrigin;
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var textSize = font.Measure(apparentText);
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var disabled = IsDisabled();
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var state = disabled ? "textfield-disabled" :
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HasKeyboardFocus ? "textfield-focused" :
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Ui.MouseOverWidget == this ? "textfield-hover" :
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"textfield";
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WidgetUtils.DrawPanel(state, RenderBounds);
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// Blink the current entry to indicate focus
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if (HasKeyboardFocus && !showEntry)
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return;
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// Inset text by the margin and center vertically
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var textPos = pos + new int2(LeftMargin, (Bounds.Height - textSize.Y) / 2 - VisualHeight);
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// Scissor when the text overflows
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if (textSize.X > Bounds.Width - LeftMargin - RightMargin)
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{
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Game.Renderer.EnableScissor(new Rectangle(pos.X + LeftMargin, pos.Y,
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Bounds.Width - LeftMargin - RightMargin, Bounds.Bottom));
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}
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var color = disabled ? TextColorDisabled : TextColor;
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font.DrawText(apparentText, textPos, color);
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if (textSize.X > Bounds.Width - LeftMargin - RightMargin)
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Game.Renderer.DisableScissor();
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}
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public override Widget Clone() { return new HotkeyEntryWidget(this); }
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}
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}
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