source: trunk/src/qt3support/widgets/q3gridview.cpp@ 1056

Last change on this file since 1056 was 846, checked in by Dmitry A. Kuminov, 14 years ago

trunk: Merged in qt 4.7.2 sources from branches/vendor/nokia/qt.

File size: 10.0 KB
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1/****************************************************************************
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3** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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41
42
43#include "q3gridview.h"
44#include "qpainter.h"
45
46QT_BEGIN_NAMESPACE
47
48using namespace Qt;
49
50/*!
51 \class Q3GridView
52 \brief The Q3GridView class provides an abstract base for
53 fixed-size grids.
54
55 \compat
56
57 A grid view consists of a number of abstract cells organized in
58 rows and columns. The cells have a fixed size and are identified
59 with a row index and a column index. The top-left cell is in row
60 0, column 0. The bottom-right cell is in row numRows()-1, column
61 numCols()-1.
62
63 You can define \l{Q3GridView::numRows} {numRows},
64 \l{Q3GridView::numCols} {numCols}, \l{Q3GridView::cellWidth}
65 {cellWidth} and \l{Q3GridView::cellHeight} {cellHeight}. Reimplement
66 the pure virtual function paintCell() to draw the contents of a
67 cell.
68
69 With ensureCellVisible(), you can ensure a certain cell is
70 visible. With rowAt() and columnAt() you can find a cell based on
71 the given x- and y-coordinates.
72
73 If you need to monitor changes to the grid's dimensions (i.e. when
74 numRows or numCols is changed), reimplement the dimensionChange()
75 change handler.
76
77 Note: the row and column indices are always given in the order,
78 row (vertical offset) then column (horizontal offset). This order
79 is the opposite of all pixel operations, which are given in the
80 order x (horizontal offset), y (vertical offset).
81