Qwt User's Guide: qwt_pixel_matrix.cpp Source File

Qwt User's Guide 6.2.0

qwt_pixel_matrix.cpp
1 /******************************************************************************
2 * Qwt Widget Library
3 * Copyright (C) 1997 Josef Wilgen
4 * Copyright (C) 2002 Uwe Rathmann
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the Qwt License, Version 1.0
8 *****************************************************************************/
9
10 #include "qwt_pixel_matrix.h"
11
17 QwtPixelMatrix::QwtPixelMatrix( const QRect& rect )
18 : QBitArray( qMax( rect.width() * rect.height(), 0 ) )
19 , m_rect( rect )
20 {
21 }
22
24 QwtPixelMatrix::~QwtPixelMatrix()
25 {
26 }
27
35 void QwtPixelMatrix::setRect( const QRect& rect )
36 {
37 if ( rect != m_rect )
38 {
39 m_rect = rect;
40 const int sz = qMax( rect.width() * rect.height(), 0 );
41 resize( sz );
42 }
43
44 fill( false );
45 }
46
48 QRect QwtPixelMatrix::rect() const
49 {
50 return m_rect;
51 }
QwtPixelMatrix::~QwtPixelMatrix
~QwtPixelMatrix()
Destructor.
Definition: qwt_pixel_matrix.cpp:24
QwtPixelMatrix::rect
QRect rect() const
Definition: qwt_pixel_matrix.cpp:48
QwtPixelMatrix::QwtPixelMatrix
QwtPixelMatrix(const QRect &rect)
Constructor.
Definition: qwt_pixel_matrix.cpp:17
QwtPixelMatrix::setRect
void setRect(const QRect &rect)
Definition: qwt_pixel_matrix.cpp:35