ClassiCube/ClassicalSharp/2D/Screens/Menu/MenuOptionsScreen.cs

279 lines
10 KiB
C#

// ClassicalSharp copyright 2014-2016 UnknownShadow200 | Licensed under MIT
using System;
using System.Drawing;
using OpenTK.Input;
namespace ClassicalSharp.Gui {
public abstract class MenuOptionsScreen : MenuScreen {
public MenuOptionsScreen( Game game ) : base( game ) {
}
protected MenuInputWidget inputWidget;
protected MenuInputValidator[] validators;
protected string[][] descriptions;
protected TextGroupWidget extendedHelp;
Font extendedHelpFont;
public override void Render( double delta ) {
RenderMenuBounds();
int extClipY = extendedHelp == null ? 0 : widgets[widgets.Length - 3].Y;
int extEndY = extendedHelp == null ? 0 : extendedHelp.Y + extendedHelp.Height;
if( extendedHelp != null && extEndY <= extClipY ) {
int x = game.Width / 2 - tableWidth / 2 - 5;
int y = game.Height / 2 + extHelpY - 5;
api.Draw2DQuad( x, y, tableWidth + 10, tableHeight + 10, tableCol );
}
api.Texturing = true;
RenderMenuWidgets( delta );
if( inputWidget != null )
inputWidget.Render( delta );
if( extendedHelp != null && extEndY <= extClipY )
extendedHelp.Render( delta );
api.Texturing = false;
}
public override void Init() {
base.Init();
regularFont = new Font( game.FontName, 16, FontStyle.Regular );
extendedHelpFont = new Font( game.FontName, 16, FontStyle.Regular );
game.Keyboard.KeyRepeat = true;
}
public override bool HandlesKeyPress( char key ) {
if( inputWidget == null ) return true;
return inputWidget.HandlesKeyPress( key );
}
public override bool HandlesKeyDown( Key key ) {
if( key == Key.Escape ) {
game.SetNewScreen( null );
return true;
} else if( (key == Key.Enter || key == Key.KeypadEnter)
&& inputWidget != null ) {
ChangeSetting();
return true;
}
if( inputWidget == null )
return key < Key.F1 || key > Key.F35;
return inputWidget.HandlesKeyDown( key );
}
public override bool HandlesKeyUp( Key key ) {
if( inputWidget == null ) return true;
return inputWidget.HandlesKeyUp( key );
}
public override void OnResize( int oldWidth, int oldHeight, int width, int height ) {
if( inputWidget != null )
inputWidget.OnResize( oldWidth, oldHeight, width, height );
base.OnResize( oldWidth, oldHeight, width, height );
if( extendedHelp == null ) return;
extendedHelp.OnResize( oldWidth, oldHeight, width, height );
}
public override void Dispose() {
DisposeWidgets();
game.Keyboard.KeyRepeat = false;
extendedHelpFont.Dispose();
DisposeExtendedHelp();
base.Dispose();
}
protected ButtonWidget selectedWidget, targetWidget;
protected override void WidgetSelected( Widget widget ) {
ButtonWidget button = widget as ButtonWidget;
if( selectedWidget == button || button == null ||
button == widgets[widgets.Length - 2] ) return;
selectedWidget = button;
if( targetWidget != null ) return;
UpdateDescription( selectedWidget );
}
protected void UpdateDescription( ButtonWidget widget ) {
DisposeExtendedHelp();
if( widget == null || widget.GetValue == null ) return;
ShowExtendedHelp();
}
protected virtual void InputOpened() { }
protected virtual void InputClosed() { }
protected ButtonWidget Make( int dir, int y, string text, ClickHandler onClick,
Func<Game, string> getter, Action<Game, string> setter ) {
ButtonWidget widget = ButtonWidget.Create( game, 160 * dir, y, 280, 35, text, Anchor.Centre,
Anchor.Centre, titleFont, onClick );
widget.GetValue = getter; widget.SetValue = setter;
return widget;
}
protected ButtonWidget Make2( int dir, int y, string text, ClickHandler onClick,
Func<Game, string> getter, Action<Game, string> setter ) {
return Make2Impl( 160 * dir, y, 280, 35, text, onClick, getter, setter );
}
protected ButtonWidget MakeBool( int dir, int y, string optName, string optKey,
ClickHandler onClick, Func<Game, bool> getter, Action<Game, bool> setter ) {
return MakeBoolImpl( 160 * dir, y, 280, 35, optName, optKey, onClick, getter, setter );
}
protected ButtonWidget MakeClassic( int dir, int y, string text, ClickHandler onClick,
Func<Game, string> getter, Action<Game, string> setter ) {
ButtonWidget widget = ButtonWidget.Create( game, 165 * dir, y, 301, 41, text, Anchor.Centre,
Anchor.Centre, titleFont, onClick );
widget.GetValue = getter; widget.SetValue = setter;
return widget;
}
protected ButtonWidget MakeClassic2( int dir, int y, string text, ClickHandler onClick,
Func<Game, string> getter, Action<Game, string> setter ) {
return Make2Impl( 165 * dir, y, 301, 41, text, onClick, getter, setter );
}
protected ButtonWidget MakeClassicBool( int dir, int y, string text, string optKey,
ClickHandler onClick, Func<Game, bool> getter, Action<Game, bool> setter ) {
return MakeBoolImpl( 165 * dir, y, 301, 41, text, optKey, onClick, getter, setter );
}
ButtonWidget Make2Impl( int x, int y, int width, int height, string text,
ClickHandler onClick, Func<Game, string> getter, Action<Game, string> setter ) {
ButtonWidget widget = ButtonWidget.Create( game, x, y, width, height, text + ": " + getter( game ),
Anchor.Centre, Anchor.Centre, titleFont, onClick );
widget.Metadata = text;
widget.GetValue = getter;
widget.SetValue = (g, v) => {
setter( g, v );
widget.SetText( (string)widget.Metadata + ": " + getter( g ) );
};
return widget;
}
ButtonWidget MakeBoolImpl( int x, int y, int width, int height, string text, string optKey,
ClickHandler onClick, Func<Game, bool> getter, Action<Game, bool> setter ) {
string optName = text;
text = text + ": " + (getter( game ) ? "ON" : "OFF");
ButtonWidget widget = ButtonWidget.Create( game, x, y, width, height, text, Anchor.Centre,
Anchor.Centre, titleFont, onClick );
widget.Metadata = optName;
widget.GetValue = g => getter( g ) ? "yes" : "no";
widget.SetValue = (g, v) => {
setter( g, v == "yes" );
Options.Set( optKey, v == "yes" );
widget.SetText( (string)widget.Metadata + ": " + (v == "yes" ? "ON" : "OFF") );
};
return widget;
}
void ShowExtendedHelp() {
bool canShow = inputWidget == null && selectedWidget != null && descriptions != null;
if( !canShow ) return;
int index = Array.IndexOf<Widget>( widgets, selectedWidget );
if( index < 0 || index >= descriptions.Length ) return;
string[] desc = descriptions[index];
if( desc == null ) return;
MakeExtendedHelp( desc );
}
static FastColour tableCol = new FastColour( 20, 20, 20, 200 );
int tableWidth, tableHeight;
const int extHelpY = 100;
void MakeExtendedHelp( string[] desc ) {
extendedHelp = new TextGroupWidget( game, desc.Length, extendedHelpFont, null,
Anchor.Centre, Anchor.Centre );
extendedHelp.Init();
for( int i = 0; i < desc.Length; i++ )
extendedHelp.SetText( i, desc[i] );
for( int i = 0; i < desc.Length; i++ )
extendedHelp.Textures[i].X1 = extendedHelp.X;
tableWidth = extendedHelp.Width;
tableHeight = extendedHelp.Height;
extendedHelp.MoveTo( extendedHelp.X, extHelpY + tableHeight / 2 );
}
void DisposeExtendedHelp() {
if( extendedHelp == null ) return;
extendedHelp.Dispose();
extendedHelp = null;
}
protected void OnWidgetClick( Game game, Widget widget, MouseButton mouseBtn ) {
ButtonWidget button = widget as ButtonWidget;
if( mouseBtn != MouseButton.Left ) return;
if( widget == widgets[widgets.Length - 1] ) {
ChangeSetting(); return;
}
if( button == null ) return;
DisposeExtendedHelp();
int index = Array.IndexOf<Widget>( widgets, button );
MenuInputValidator validator = validators[index];
if( validator is BooleanValidator ) {
string value = button.GetValue( game );
button.SetValue( game, value == "yes" ? "no" : "yes" );
UpdateDescription( button );
return;
} else if( validator is EnumValidator ) {
Type type = ((EnumValidator)validator).EnumType;
HandleEnumOption( button, type );
return;
}
if( inputWidget != null )
inputWidget.Dispose();
targetWidget = selectedWidget;
inputWidget = MenuInputWidget.Create( game, 0, 110, 400, 30, button.GetValue( game ), Anchor.Centre,
Anchor.Centre, regularFont, titleFont, validator );
widgets[widgets.Length - 2] = inputWidget;
widgets[widgets.Length - 1] = ButtonWidget.Create( game, 240, 110, 40, 30, "OK",
Anchor.Centre, Anchor.Centre, titleFont, OnWidgetClick );
InputOpened();
UpdateDescription( targetWidget );
}
void HandleEnumOption( ButtonWidget button, Type type ) {
string value = button.GetValue( game );
int enumValue = (int)Enum.Parse( type, value, true );
enumValue++;
// go back to first value
if( !Enum.IsDefined( type, enumValue ) )
enumValue = 0;
button.SetValue( game, Enum.GetName( type, enumValue ) );
UpdateDescription( button );
}
void ChangeSetting() {
string text = inputWidget.GetText();
if( inputWidget.Validator.IsValidValue( text ) )
targetWidget.SetValue( game, text );
DisposeWidgets();
UpdateDescription( targetWidget );
targetWidget = null;
InputClosed();
}
void DisposeWidgets() {
if( inputWidget != null )
inputWidget.Dispose();
widgets[widgets.Length - 2] = null;
inputWidget = null;
int okayIndex = widgets.Length - 1;
if( widgets[okayIndex] != null )
widgets[okayIndex].Dispose();
widgets[okayIndex] = null;
}
}
}