100 lines
2.7 KiB
C#
100 lines
2.7 KiB
C#
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//-----------------------------------------------------------------------------
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// Torque Game Engine
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//
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// Copyright (c) 2001 GarageGames.Com
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// Portions Copyright (c) 2001 by Sierra Online, Inc.
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//-----------------------------------------------------------------------------
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//------------------------------------------------------------------------------
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// Cursor Control
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//------------------------------------------------------------------------------
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$cursorControlled = true;
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function cursorOff()
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{
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if ( $cursorControlled )
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lockMouse(true);
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Canvas.cursorOff();
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}
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function cursorOn()
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{
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if ( $cursorControlled )
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lockMouse(false);
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Canvas.cursorOn();
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Canvas.setCursor(DefaultCursor);
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}
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// In the CanvasCursor package we add some additional functionality to the
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// built-in GuiCanvas class, of which the global Canvas object is an instance.
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// In this case, the behavior we want is for the cursor to automatically display,
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// except when the only guis visible want no cursor - most notably,
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// in the case of the example, the play gui.
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// In order to override or extend an existing class, we use the script package
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// feature.
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package CanvasCursor
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{
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// The checkCursor method iterates through all the root controls on the canvas
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// (basically the content control and any visible dialogs). If all of them
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// have the .noCursor attribute set, the cursor is turned off, otherwise it is
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// turned on.
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function GuiCanvas::checkCursor(%this)
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{
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%cursorShouldBeOn = false;
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for(%i = 0; %i < %this.getCount(); %i++)
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{
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%control = %this.getObject(%i);
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if(%control.noCursor $= "")
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{
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%cursorShouldBeOn = true;
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break;
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}
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}
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if(%cursorShouldBeOn != %this.isCursorOn())
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{
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if(%cursorShouldBeOn)
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cursorOn();
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else
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cursorOff();
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}
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}
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// below, all functions which can alter which content controls are visible
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// are extended to call the checkCursor function. For package'd functions,
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// the Parent:: call refers to the original implementation of that function,
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// or a version that was declared in a previously activated package.
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// In this case the parent calls should point to the built in versions
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// of GuiCanvas functions.
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function GuiCanvas::setContent(%this, %ctrl)
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{
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Parent::setContent(%this, %ctrl);
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%this.checkCursor();
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}
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function GuiCanvas::pushDialog(%this, %ctrl)
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{
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Parent::pushDialog(%this, %ctrl);
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%this.checkCursor();
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}
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function GuiCanvas::popDialog(%this, %ctrl)
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{
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Parent::popDialog(%this, %ctrl);
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%this.checkCursor();
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}
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function GuiCanvas::popLayer(%this, %layer)
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{
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Parent::popLayer(%this, %layer);
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%this.checkCursor();
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}
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};
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// activate the package when the script loads.
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activatePackage(CanvasCursor);
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