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| author | Michele Calgaro <[email protected]> | 2024-05-31 11:32:43 +0900 |
|---|---|---|
| committer | Michele Calgaro <[email protected]> | 2024-05-31 11:59:34 +0900 |
| commit | 68b81013e8668f50fc18b7e26a520ec93a7a1251 (patch) | |
| tree | d6d15d07cb34e5443a10b71f91adee1473906263 /doc/html/qcanvasview.html | |
| parent | 1702a6daff27f5d3e6fdac16962d1828df6ca270 (diff) | |
| download | tqt3-68b81013e8668f50fc18b7e26a520ec93a7a1251.tar.gz tqt3-68b81013e8668f50fc18b7e26a520ec93a7a1251.zip | |
Rename nt* canvas related files to equivalent tq*
Signed-off-by: Michele Calgaro <[email protected]>
Diffstat (limited to 'doc/html/qcanvasview.html')
| -rw-r--r-- | doc/html/qcanvasview.html | 190 |
1 files changed, 0 insertions, 190 deletions
diff --git a/doc/html/qcanvasview.html b/doc/html/qcanvasview.html deleted file mode 100644 index 6ea947b67..000000000 --- a/doc/html/qcanvasview.html +++ /dev/null @@ -1,190 +0,0 @@ -<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> -<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/src/canvas/qcanvas.cpp:3456 --> -<html> -<head> -<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> -<title>TQCanvasView Class</title> -<style type="text/css"><!-- -fn { margin-left: 1cm; text-indent: -1cm; } -a:link { color: #004faf; text-decoration: none } -a:visited { color: #672967; text-decoration: none } -body { background: #ffffff; color: black; } ---></style> -</head> -<body> - -<table border="0" cellpadding="0" cellspacing="0" width="100%"> -<tr bgcolor="#E5E5E5"> -<td valign=center> - <a href="index.html"> -<font color="#004faf">Home</font></a> - | <a href="classes.html"> -<font color="#004faf">All Classes</font></a> - | <a href="mainclasses.html"> -<font color="#004faf">Main Classes</font></a> - | <a href="annotated.html"> -<font color="#004faf">Annotated</font></a> - | <a href="groups.html"> -<font color="#004faf">Grouped Classes</font></a> - | <a href="functions.html"> -<font color="#004faf">Functions</font></a> -</td> -<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>TQCanvasView Class Reference<br><small>[<a href="canvas.html">canvas module</a>]</small></h1> - -<p>The TQCanvasView class provides an on-screen view of a TQCanvas. -<a href="#details">More...</a> -<p><tt>#include <<a href="qcanvas-h.html">ntqcanvas.h</a>></tt> -<p>Inherits <a href="ntqscrollview.html">TQScrollView</a>. -<p><a href="qcanvasview-members.html">List of all member functions.</a> -<h2>Public Members</h2> -<ul> -<li class=fn><a href="#TQCanvasView"><b>TQCanvasView</b></a> ( TQWidget * parent = 0, const char * name = 0, WFlags f = 0 )</li> -<li class=fn><a href="#TQCanvasView-2"><b>TQCanvasView</b></a> ( TQCanvas * canvas, TQWidget * parent = 0, const char * name = 0, WFlags f = 0 )</li> -<li class=fn><a href="#~TQCanvasView"><b>~TQCanvasView</b></a> ()</li> -<li class=fn>TQCanvas * <a href="#canvas"><b>canvas</b></a> () const</li> -<li class=fn>void <a href="#setCanvas"><b>setCanvas</b></a> ( TQCanvas * canvas )</li> -<li class=fn>const TQWMatrix & <a href="#worldMatrix"><b>worldMatrix</b></a> () const</li> -<li class=fn>const TQWMatrix & <a href="#inverseWorldMatrix"><b>inverseWorldMatrix</b></a> () const</li> -<li class=fn>bool <a href="#setWorldMatrix"><b>setWorldMatrix</b></a> ( const TQWMatrix & wm )</li> -</ul> -<h2>Protected Members</h2> -<ul> -<li class=fn>virtual void <a href="#drawContents"><b>drawContents</b></a> ( TQPainter * p, int cx, int cy, int cw, int ch )</li> -<li class=fn>virtual TQSize <a href="#sizeHint"><b>sizeHint</b></a> () const</li> -</ul> -<hr><a name="details"></a><h2>Detailed Description</h2> - - -The TQCanvasView class provides an on-screen view of a <a href="ntqcanvas.html">TQCanvas</a>. - -<p> - - -<p> A TQCanvasView is widget which provides a view of a TQCanvas. -<p> If you want users to be able to interact with a canvas view, -subclass TQCanvasView. You might then reimplement -<a href="ntqscrollview.html#contentsMousePressEvent">TQScrollView::contentsMousePressEvent</a>(). For example, assuming no -<a href="ntqwmatrix.html#TransformationMode">transformation matrix</a> is set: -<p> <pre> - void MyCanvasView::contentsMousePressEvent( <a href="qmouseevent.html">TQMouseEvent</a>* e ) - { - <a href="qcanvasitemlist.html">TQCanvasItemList</a> l = <a href="#canvas">canvas</a>()->collisions(e-><a href="qmouseevent.html#pos">pos</a>()); - for (TQCanvasItemList::Iterator it=l.<a href="ntqvaluelist.html#begin">begin</a>(); it!=l.<a href="ntqvaluelist.html#end">end</a>(); ++it) { - if ( (*it)->rtti() == TQCanvasRectangle::RTTI ) - <a href="ntqapplication.html#qDebug">tqDebug</a>("A TQCanvasRectangle lies somewhere at this point"); - } - } - </pre> - -<p> The canvas view shows canvas <a href="#canvas">canvas</a>(); this can be changed using -<a href="#setCanvas">setCanvas</a>(). -<p> A transformation matrix can be used to transform the view of the -canvas in various ways, for example, zooming in or out or rotating. -For example: -<p> <pre> - <a href="ntqwmatrix.html">TQWMatrix</a> wm; - wm.<a href="ntqwmatrix.html#scale">scale</a>( 2, 2 ); // Zooms in by 2 times - wm.<a href="ntqwmatrix.html#rotate">rotate</a>( 90 ); // Rotates 90 degrees counter clockwise - // around the origin. - wm.<a href="ntqwmatrix.html#translate">translate</a>( 0, -canvas->height() ); - // moves the canvas down so what was visible - // before is still visible. - myCanvasView->setWorldMatrix( wm ); - </pre> - -<p> Use <a href="#setWorldMatrix">setWorldMatrix</a>() to set the canvas view's world matrix: you must -ensure that the world matrix is invertible. The current world matrix -is retrievable with <a href="#worldMatrix">worldMatrix</a>(), and its inversion is retrievable -with <a href="#inverseWorldMatrix">inverseWorldMatrix</a>(). -<p> Example: -<p> The following code finds the part of the canvas that is visible in -this view, i.e. the bounding rectangle of the view in canvas coordinates. -<p> <pre> - <a href="ntqrect.html">TQRect</a> rc = TQRect( myCanvasView->contentsX(), myCanvasView->contentsY(), - myCanvasView->visibleWidth(), myCanvasView->visibleHeight() ); - <a href="ntqrect.html">TQRect</a> canvasRect = myCanvasView->inverseWorldMatrix().mapRect(rc); - </pre> - -<p> <p>See also <a href="ntqwmatrix.html">TQWMatrix</a>, <a href="ntqpainter.html#setWorldMatrix">TQPainter::setWorldMatrix</a>(), <a href="graphics.html">Graphics Classes</a>, and <a href="images.html">Image Processing Classes</a>. - -<p> -<hr><h2>Member Function Documentation</h2> -<h3 class=fn><a name="TQCanvasView"></a>TQCanvasView::TQCanvasView ( <a href="ntqwidget.html">TQWidget</a> * parent = 0, const char * name = 0, WFlags f = 0 ) -</h3> -Constructs a TQCanvasView with parent <em>parent</em>, and name <em>name</em>, -using the widget flags <em>f</em>. The canvas view is not associated -with a canvas, so you must to call <a href="#setCanvas">setCanvas</a>() to view a -canvas. - -<h3 class=fn><a name="TQCanvasView-2"></a>TQCanvasView::TQCanvasView ( <a href="ntqcanvas.html">TQCanvas</a> * canvas, <a href="ntqwidget.html">TQWidget</a> * parent = 0, const char * name = 0, WFlags f = 0 ) -</h3> -This is an overloaded member function, provided for convenience. It behaves essentially like the above function. -<p> Constructs a TQCanvasView which views canvas <em>canvas</em>, with parent -<em>parent</em>, and name <em>name</em>, using the widget flags <em>f</em>. - -<h3 class=fn><a name="~TQCanvasView"></a>TQCanvasView::~TQCanvasView () -</h3> -Destroys the canvas view. The associated canvas is <em>not</em> deleted. - -<h3 class=fn><a href="ntqcanvas.html">TQCanvas</a> * <a name="canvas"></a>TQCanvasView::canvas () const -</h3> - -<p> Returns a pointer to the canvas which the TQCanvasView is currently -showing. - -<h3 class=fn>void <a name="drawContents"></a>TQCanvasView::drawContents ( <a href="ntqpainter.html">TQPainter</a> * p, int cx, int cy, int cw, int ch )<tt> [virtual protected]</tt> -</h3> -Repaints part of the <a href="ntqcanvas.html">TQCanvas</a> that the canvas view is showing -starting at <em>cx</em> by <em>cy</em>, with a width of <em>cw</em> and a height of <em>ch</em> using the painter <em>p</em>. -<p> <b>Warning:</b> When double buffering is enabled, <a href="#drawContents">drawContents</a>() will -not respect the current settings of the painter when setting up -the painter for the double buffer (e.g., <a href="ntqscrollview.html#viewport">viewport</a>() and -window()). Also, be aware that <a href="ntqcanvas.html#update">TQCanvas::update</a>() bypasses -drawContents(), which means any reimplementation of -drawContents() is not called. -<p> <p>See also <a href="ntqcanvas.html#setDoubleBuffering">TQCanvas::setDoubleBuffering</a>(). - -<p>Reimplemented from <a href="ntqscrollview.html#drawContents">TQScrollView</a>. -<h3 class=fn>const <a href="ntqwmatrix.html">TQWMatrix</a> & <a name="inverseWorldMatrix"></a>TQCanvasView::inverseWorldMatrix () const -</h3> -Returns a reference to the inverse of the canvas view's current -<a href="ntqwmatrix.html#TransformationMode">transformation matrix</a>. -<p> <p>See also <a href="#setWorldMatrix">setWorldMatrix</a>() and <a href="#worldMatrix">worldMatrix</a>(). - -<h3 class=fn>void <a name="setCanvas"></a>TQCanvasView::setCanvas ( <a href="ntqcanvas.html">TQCanvas</a> * canvas ) -</h3> -Sets the canvas that the TQCanvasView is showing to the canvas <em>canvas</em>. - -<h3 class=fn>bool <a name="setWorldMatrix"></a>TQCanvasView::setWorldMatrix ( const <a href="ntqwmatrix.html">TQWMatrix</a> & wm ) -</h3> -Sets the <a href="ntqwmatrix.html#TransformationMode">transformation matrix</a> of the TQCanvasView to <em>wm</em>. The -matrix must be invertible (i.e. if you create a world matrix that -zooms out by 2 times, then the inverse of this matrix is one that -will zoom in by 2 times). -<p> When you use this, you should note that the performance of the -TQCanvasView will decrease considerably. -<p> Returns FALSE if <em>wm</em> is not invertable; otherwise returns TRUE. -<p> <p>See also <a href="#worldMatrix">worldMatrix</a>(), <a href="#inverseWorldMatrix">inverseWorldMatrix</a>(), and <a href="ntqwmatrix.html#isInvertible">TQWMatrix::isInvertible</a>(). - -<p>Example: <a href="canvas-example.html#x2930">canvas/canvas.cpp</a>. -<h3 class=fn><a href="ntqsize.html">TQSize</a> <a name="sizeHint"></a>TQCanvasView::sizeHint () const<tt> [virtual protected]</tt> -</h3> -Suggests a size sufficient to view the entire canvas. - -<h3 class=fn>const <a href="ntqwmatrix.html">TQWMatrix</a> & <a name="worldMatrix"></a>TQCanvasView::worldMatrix () const -</h3> -Returns a reference to the canvas view's current <a href="ntqwmatrix.html#TransformationMode">transformation matrix</a>. -<p> <p>See also <a href="#setWorldMatrix">setWorldMatrix</a>() and <a href="#inverseWorldMatrix">inverseWorldMatrix</a>(). - -<p>Example: <a href="canvas-example.html#x2931">canvas/canvas.cpp</a>. -<!-- eof --> -<hr><p> -This file is part of the <a href="index.html">TQt toolkit</a>. -Copyright © 1995-2007 -<a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center> -<table width=100% cellspacing=0 border=0><tr> -<td>Copyright © 2007 -<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a> -<td align=right><div align=right>TQt 3.3.8</div> -</table></div></address></body> -</html> |