mirror of
https://git.do.srb2.org/STJr/ZoneBuilder.git
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395 lines
11 KiB
C#
395 lines
11 KiB
C#
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#region ================== Copyright (c) 2007 Pascal vd Heiden
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/*
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* Copyright (c) 2007 Pascal vd Heiden, www.codeimp.com
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* This program is released under GNU General Public License
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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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*/
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#endregion
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#region ================== Namespaces
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using System;
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using System.ComponentModel;
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using System.Drawing;
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using System.Globalization;
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using System.Windows.Forms;
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#endregion
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namespace CodeImp.DoomBuilder.Controls
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{
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public class NumericTextbox : AutoSelectTextbox
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{
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#region ================== Constants
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#endregion
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#region ================== Variables
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private bool allownegative; // Allow negative numbers
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private bool allowrelative; // Allow ++, --, * and / prefix for relative changes
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private bool allowdecimal; // Allow decimal (float) numbers
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private bool controlpressed;
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private int incrementstep; //mxd. Step for +++ and --- prefixes
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private readonly ToolTip tooltip; //mxd
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#endregion
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#region ================== Properties
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public bool AllowNegative { get { return allownegative; } set { allownegative = value; } }
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public bool AllowRelative { get { return allowrelative; } set { allowrelative = value; UpdateTextboxStyle(); } }
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public bool AllowDecimal { get { return allowdecimal; } set { allowdecimal = value; } }
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#endregion
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#region ================== Constructor / Disposer
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// Constructor
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public NumericTextbox()
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{
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this.ImeMode = ImeMode.Off;
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//mxd. Setup tooltip
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this.tooltip = new ToolTip { AutomaticDelay = 100, AutoPopDelay = 8000, InitialDelay = 100, ReshowDelay = 100 };
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}
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#endregion
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#region ================== Methods
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// Key pressed
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protected override void OnKeyDown(KeyEventArgs e)
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{
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controlpressed = e.Control;
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base.OnKeyDown(e);
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}
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// Key released
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protected override void OnKeyUp(KeyEventArgs e)
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{
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controlpressed = e.Control;
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base.OnKeyUp(e);
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}
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// When a key is pressed
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protected override void OnKeyPress(KeyPressEventArgs e)
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{
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incrementstep = 0; //mxd
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string allowedchars = "0123456789\b";
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// Determine allowed chars
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if(allownegative) allowedchars += CultureInfo.CurrentCulture.NumberFormat.NegativeSign;
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if(allowrelative) allowedchars += "+-*/"; //mxd
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if(controlpressed) allowedchars += "\u0018\u0003\u0016";
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if(allowdecimal || this.Text.StartsWith("*") || this.Text.StartsWith("/")) //mxd
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allowedchars += CultureInfo.CurrentCulture.NumberFormat.NumberDecimalSeparator;
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// Check if key is not allowed
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if(allowedchars.IndexOf(e.KeyChar) == -1)
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{
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// Cancel this
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e.Handled = true;
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}
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else
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{
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//mxd. Check if * or / is pressed
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if(e.KeyChar == '*' || e.KeyChar == '/')
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{
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if(this.SelectionStart - 1 > -1) e.Handled = true; //only valid when at the start of the text
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}
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// Check if + or - is pressed
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else if((e.KeyChar == '+') || (e.KeyChar == '-'))
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{
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string nonselectedtext;
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// Determine non-selected text
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if(this.SelectionLength > 0)
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{
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nonselectedtext = this.Text.Substring(0, this.SelectionStart) +
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this.Text.Substring(this.SelectionStart + this.SelectionLength);
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}
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else if(this.SelectionLength < 0)
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{
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nonselectedtext = this.Text.Substring(0, this.SelectionStart + this.SelectionLength) +
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this.Text.Substring(this.SelectionStart);
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}
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else
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{
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nonselectedtext = this.Text;
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}
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// Not at the start?
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int selectionpos = this.SelectionStart - 1;
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if(this.SelectionLength < 0) selectionpos = (this.SelectionStart + this.SelectionLength) - 1;
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if(selectionpos > -1)
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{
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// Find any other characters before the insert position
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string textpart = this.Text.Substring(0, selectionpos + 1);
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textpart = textpart.Replace("+", "");
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textpart = textpart.Replace("-", "");
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if(textpart.Length > 0)
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{
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// Cancel this
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e.Handled = true;
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}
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}
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// Determine other prefix
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char otherprefix = (e.KeyChar == '+' ? '-' : '+');
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// Limit the number of + and - allowed
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int numprefixes = nonselectedtext.Split(e.KeyChar, otherprefix).Length;
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if(numprefixes > 3)
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{
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// Can't have more than 3 prefixes (mxd)
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e.Handled = true;
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}
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else if(numprefixes > 1)
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{
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// Must have 2 or 3 same prefixes
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if(this.Text.IndexOf(e.KeyChar) == -1) e.Handled = true;
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// Double or triple prefix must be allowed
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if(!allowrelative) e.Handled = true;
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}
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}
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}
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// Call base
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base.OnKeyPress(e);
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}
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// Validate contents
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protected override void OnValidating(CancelEventArgs e)
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{
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//mxd. We may want "++" and "--" on their own...
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if(allowrelative && (this.Text == "++" || this.Text == "--"))
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{
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// Call base and bail out
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base.OnValidating(e);
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return;
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}
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// Strip prefixes
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string textpart = this.Text.Replace("+", "").Replace("*", "").Replace("/", ""); //mxd
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if(!allownegative) textpart = textpart.Replace("-", "");
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// No numbers left?
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if(textpart.Length == 0)
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{
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// Make the textbox empty
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this.Text = "";
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}
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// Call base
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base.OnValidating(e);
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}
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// This checks if the number is relative
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public bool CheckIsRelative()
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{
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// Prefixed with +++, ---, ++, --, * or /?
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return ( (this.Text.Length > 3 && (this.Text.StartsWith("+++") || this.Text.StartsWith("---"))) || //mxd
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(this.Text.Length > 2 && (this.Text.StartsWith("++") || this.Text.StartsWith("--") || this.Text.StartsWith("**") || this.Text.StartsWith("//"))) || //mxd
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(this.Text.Length > 1 && (this.Text.StartsWith("*") || this.Text.StartsWith("/"))) ); //mxd
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}
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//mxd. This determines the result value
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public int GetResult(int original)
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{
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return GetResult(original, incrementstep++);
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}
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//mxd. This determines the result value
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public int GetResult(int original, int step)
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{
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string textpart = this.Text;
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// Strip prefixes
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textpart = textpart.Replace("+", "").Replace("-", "").Replace("*", "").Replace("/", ""); //mxd
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// Any numbers left?
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if(textpart.Length > 0)
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{
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int result;
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//mxd. Prefixed with +++?
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if(this.Text.StartsWith("+++"))
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{
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// Add number to original
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int.TryParse(textpart, out result);
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return original + result * step;
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}
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//mxd. Prefixed with ---?
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if(this.Text.StartsWith("---"))
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{
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// Subtract number from original
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int.TryParse(textpart, out result);
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int newvalue = original - result * step;
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if(!allownegative && (newvalue < 0)) newvalue = 0;
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return newvalue;
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}
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// Prefixed with ++?
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if(this.Text.StartsWith("++"))
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{
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// Add number to original
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int.TryParse(textpart, out result);
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return original + result;
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}
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// Prefixed with --?
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if(this.Text.StartsWith("--"))
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{
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// Subtract number from original
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int.TryParse(textpart, out result);
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int newvalue = original - result;
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if(!allownegative && (newvalue < 0)) newvalue = 0;
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return newvalue;
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}
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//mxd. Prefixed with *?
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if(this.Text.StartsWith("*"))
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{
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// Multiply original by number
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float resultf;
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float.TryParse(textpart, NumberStyles.Float, CultureInfo.CurrentCulture, out resultf);
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int newvalue = (int)Math.Round(original * resultf);
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if(!allownegative && (newvalue < 0)) newvalue = 0;
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return newvalue;
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}
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//mxd. Prefixed with /?
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if(this.Text.StartsWith("/"))
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{
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// Divide original by number
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float resultf;
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float.TryParse(textpart, NumberStyles.Float, CultureInfo.CurrentCulture, out resultf);
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if(resultf == 0) return original;
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int newvalue = (int)Math.Round(original / resultf);
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if(!allownegative && (newvalue < 0)) newvalue = 0;
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return newvalue;
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}
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//mxd. Return the new value
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if(!int.TryParse(this.Text, out result)) return original;
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if(!allownegative && (result < 0)) return 0;
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return result;
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}
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// Nothing given, keep original value
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return original;
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}
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//mxd. This determines the result value
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public float GetResultFloat(float original)
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{
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return GetResultFloat(original, incrementstep++);
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}
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// This determines the result value
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public float GetResultFloat(float original, int step)
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{
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// Strip prefixes
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string textpart = this.Text.Replace("+", "").Replace("-", "").Replace("*", "").Replace("/", ""); //mxd;
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// Any numbers left?
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if(textpart.Length > 0)
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{
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float result;
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//mxd. Prefixed with +++?
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if(this.Text.StartsWith("+++"))
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{
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// Add number to original
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if(!float.TryParse(textpart, NumberStyles.Float, CultureInfo.CurrentCulture, out result)) result = 0;
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return original + result * step;
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}
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//mxd. Prefixed with ---?
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if(this.Text.StartsWith("---"))
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{
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// Subtract number from original
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if(!float.TryParse(textpart, NumberStyles.Float, CultureInfo.CurrentCulture, out result)) result = 0;
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float newvalue = original - result * step;
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if(!allownegative && (newvalue < 0)) newvalue = 0;
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return newvalue;
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}
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// Prefixed with ++?
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if(this.Text.StartsWith("++"))
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{
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// Add number to original
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if(!float.TryParse(textpart, NumberStyles.Float, CultureInfo.CurrentCulture, out result)) result = 0;
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return original + result;
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}
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// Prefixed with --?
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if(this.Text.StartsWith("--"))
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{
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// Subtract number from original
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if(!float.TryParse(textpart, NumberStyles.Float, CultureInfo.CurrentCulture, out result)) result = 0;
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float newvalue = original - result;
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if(!allownegative && (newvalue < 0)) newvalue = 0;
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return newvalue;
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}
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//mxd. Prefixed with *?
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if(this.Text.StartsWith("*"))
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{
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// Multiply original by number
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if(!float.TryParse(textpart, NumberStyles.Float, CultureInfo.CurrentCulture, out result)) result = 0;
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float newvalue = original * result;
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if(!allownegative && (newvalue < 0)) newvalue = 0;
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return newvalue;
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}
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//mxd. Prefixed with /?
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if(this.Text.StartsWith("/"))
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{
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// Divide original by number
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if(!float.TryParse(textpart, NumberStyles.Float, CultureInfo.CurrentCulture, out result) || result == 0) return original;
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float newvalue = (float)Math.Round(original / result, 3);
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if(!allownegative && (newvalue < 0)) newvalue = 0;
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return newvalue;
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}
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//mxd. Return the new value
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if(!float.TryParse(this.Text, NumberStyles.Float, CultureInfo.CurrentCulture, out result)) return original;
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if(!allownegative && (result < 0)) return 0;
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return result;
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}
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// Nothing given, keep original value
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return original;
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}
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//mxd
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public void UpdateTextboxStyle()
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{
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UpdateTextboxStyle(string.Empty);
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}
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//mxd
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public void UpdateTextboxStyle(string tip)
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{
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this.ForeColor = (allowrelative ? SystemColors.HotTrack : SystemColors.WindowText);
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if(allowrelative)
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{
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tooltip.SetToolTip(this, "Use ++ or -- prefixes to change by given value." + Environment.NewLine +
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"Use +++ or --- prefixes to incrementally change by given value." + Environment.NewLine +
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"Use * or / prefixes to multiply or divide by given value." + Environment.NewLine + tip);
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}
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else if(!string.IsNullOrEmpty(tip))
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{
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tooltip.SetToolTip(this, tip);
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}
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else
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{
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tooltip.RemoveAll();
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}
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}
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#endregion
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}
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}
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