118 lines
4.1 KiB
C#
118 lines
4.1 KiB
C#
using System.Drawing;
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#region Copyright & License Information
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/*
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* Copyright 2007,2009,2010 Chris Forbes, Robert Pepperell, Matthew Bowra-Dean, Paul Chote, Alli Witheford.
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* This file is part of OpenRA.
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*
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* OpenRA 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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* OpenRA 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 OpenRA. If not, see <http://www.gnu.org/licenses/>.
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*/
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#endregion
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namespace OpenRA.Widgets
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{
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class ListBoxWidget : Widget
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{
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public readonly string Background = "dialog3";
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public readonly int ScrollbarWidth = 24;
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public readonly float ScrollVelocity = 4f;
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public readonly int HeaderHeight = 0;
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public int ContentHeight = 0;
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float ListOffset = 0;
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bool UpPressed = false;
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bool DownPressed = false;
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Rectangle upButtonRect;
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Rectangle downButtonRect;
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Rectangle backgroundRect;
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Rectangle scrollbarRect;
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public ListBoxWidget() : base() {}
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public ListBoxWidget(Widget other)
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: base(other)
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{
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Background = (other as ListBoxWidget).Background;
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upButtonRect = (other as ListBoxWidget).upButtonRect;
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downButtonRect = (other as ListBoxWidget).downButtonRect;
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scrollbarRect = (other as ListBoxWidget).scrollbarRect;
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backgroundRect = (other as ListBoxWidget).backgroundRect;
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UpPressed = (other as ListBoxWidget).UpPressed;
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DownPressed = (other as ListBoxWidget).DownPressed;
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}
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public override void DrawInner(World world) {}
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public override void Draw(World world)
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{
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if (!IsVisible())
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return;
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backgroundRect = new Rectangle(RenderBounds.X, RenderBounds.Y, RenderBounds.Width - ScrollbarWidth, RenderBounds.Height);
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upButtonRect = new Rectangle(RenderBounds.Right - ScrollbarWidth, RenderBounds.Y, ScrollbarWidth, ScrollbarWidth);
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downButtonRect = new Rectangle(RenderBounds.Right - ScrollbarWidth, RenderBounds.Bottom - ScrollbarWidth, ScrollbarWidth, ScrollbarWidth);
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scrollbarRect = new Rectangle(RenderBounds.Right - ScrollbarWidth, RenderBounds.Y + ScrollbarWidth, ScrollbarWidth, RenderBounds.Height - 2*ScrollbarWidth);
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string upButtonBg = (UpPressed) ? "dialog3" : "dialog2";
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string downButtonBg = (DownPressed) ? "dialog3" : "dialog2";
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string scrolbarBg = "dialog3";
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string scrollbarButton = "dialog2";
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WidgetUtils.DrawPanel(Background, backgroundRect);
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WidgetUtils.DrawPanel(upButtonBg, upButtonRect);
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WidgetUtils.DrawPanel(downButtonBg, downButtonRect);
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WidgetUtils.DrawPanel(scrolbarBg, scrollbarRect);
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Game.chrome.renderer.Device.EnableScissor(backgroundRect.X, backgroundRect.Y + HeaderHeight, backgroundRect.Width, backgroundRect.Height - HeaderHeight);
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foreach (var child in Children)
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child.Draw(world);
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Game.chrome.renderer.RgbaSpriteRenderer.Flush();
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Game.chrome.renderer.Device.DisableScissor();
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}
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public override int2 ChildOrigin { get { return RenderOrigin + new int2(0, (int)ListOffset); } }
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public override void Tick (World world)
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{
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if (UpPressed && ListOffset <= 0) ListOffset += ScrollVelocity;
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if (DownPressed) ListOffset -= ScrollVelocity;
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}
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public override bool LoseFocus (MouseInput mi)
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{
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UpPressed = DownPressed = false;
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return base.LoseFocus(mi);
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}
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public override bool HandleInput(MouseInput mi)
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{
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if (mi.Event == MouseInputEvent.Down && !TakeFocus(mi))
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return false;
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if (!Focused)
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return false;
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UpPressed = upButtonRect.Contains(mi.Location.X,mi.Location.Y);
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DownPressed = downButtonRect.Contains(mi.Location.X,mi.Location.Y);
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if (Focused && mi.Event == MouseInputEvent.Up)
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LoseFocus(mi);
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return (UpPressed || DownPressed);
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}
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public override Widget Clone() { return new ListBoxWidget(this); }
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}
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} |