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UltimateZoneBuilder/Source/Controls/AngleControl.cs

179 lines
4.3 KiB
C#

#region ================== Copyright (c) 2007 Pascal vd Heiden
/*
* Copyright (c) 2007 Pascal vd Heiden, www.codeimp.com
* This program is released under GNU General Public License
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#endregion
#region ================== Namespaces
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Text;
using System.Globalization;
using System.Windows.Forms;
using CodeImp.DoomBuilder.Actions;
using CodeImp.DoomBuilder.Geometry;
using CodeImp.DoomBuilder.Rendering;
using CodeImp.DoomBuilder.Editing;
using System.Drawing.Drawing2D;
#endregion
namespace CodeImp.DoomBuilder.Controls
{
public partial class AngleControl : UserControl
{
#region ================== Constants
private const float LINE_THICKNESS = 3f;
private const float LINE_LENGTH = 22f;
#endregion
#region ================== Events
public event EventHandler ValueChanged;
public event EventHandler ButtonClicked;
#endregion
#region ================== Variables
// Buttons
private RadioButton[] buttons;
// Result
private int angle;
private bool settingangle;
#endregion
#region ================== Properties
public int Value { get { return angle; } set { SetAngle(value, true); } }
#endregion
#region ================== Constructor / Disposer
// Constructor
public AngleControl()
{
// Initialize
InitializeComponent();
// Make array from buttons
buttons = new RadioButton[8];
buttons[0] = button0;
buttons[1] = button1;
buttons[2] = button2;
buttons[3] = button3;
buttons[4] = button4;
buttons[5] = button5;
buttons[6] = button6;
buttons[7] = button7;
}
#endregion
#region ================== Interface
// Size changed
protected override void OnClientSizeChanged(EventArgs e)
{
base.OnClientSizeChanged(e);
AngleControl_Resize(this, e);
}
// Layout changed
private void AngleControl_Layout(object sender, LayoutEventArgs e)
{
AngleControl_Resize(sender, e);
}
// Size changed
private void AngleControl_Resize(object sender, EventArgs e)
{
this.Size = new Size(80, 80);
}
// Redraw the control
private void AngleControl_Paint(object sender, PaintEventArgs e)
{
float rad = Angle2D.DegToRad((float)angle);
e.Graphics.PixelOffsetMode = PixelOffsetMode.HighQuality;
e.Graphics.InterpolationMode = InterpolationMode.High;
e.Graphics.SmoothingMode = SmoothingMode.HighQuality;
e.Graphics.Clear(SystemColors.Control);
Pen linepen = new Pen(SystemColors.ControlText, LINE_THICKNESS);
PointF start = new PointF(40f, 40f);
if((rad >= 0) && (rad < 360))
{
PointF end = new PointF(start.X + (float)Math.Sin(rad + Angle2D.PIHALF) * LINE_LENGTH,
start.Y + (float)Math.Cos(rad + Angle2D.PIHALF) * LINE_LENGTH);
e.Graphics.DrawLine(linepen, start, end);
}
else
{
e.Graphics.DrawLine(linepen, start, start);
}
}
#endregion
#region ================== Control
// This sets an angle manually
private void SetAngle(int newangle, bool changebuttons)
{
bool changed;
// Normalize and apply angle
changed = (newangle != angle);
angle = newangle;
// Check if it matches an angle from the buttons
if(changebuttons)
{
settingangle = true;
for(int i = 0; i < 8; i++)
buttons[i].Checked = (angle == i * 45);
settingangle = false;
}
// Redraw
this.Invalidate();
// Raise event
if((ValueChanged != null) && changed) ValueChanged(this, EventArgs.Empty);
}
// When checked state of a button changes
private void button_CheckedChanged(object sender, EventArgs e)
{
if(!settingangle)
{
// Check if we can get the angle from one of the buttons
for(int i = 0; i < 8; i++)
if(buttons[i].Checked) SetAngle(i * 45, false);
// Raise event
if(ButtonClicked != null) ButtonClicked(this, EventArgs.Empty);
}
}
#endregion
}
}