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annotate textabbrev.h @ 109:1721c580c10e

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* Add a queueing mechanism for Hg actions, instead of refusing to start an action if something else is already happening. This is essential now that actions can be prompted by asynchronous events (e.g. filesystem watcher). * Make Revert behave sensibly
author Chris Cannam
date Fri, 26 Nov 2010 12:48:29 +0000
parents f583e44d9d31
children 8fd71f570884
rev   line source
Chris@50 1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
Chris@50 2
Chris@50 3 /*
Chris@57 4 EasyMercurial
Chris@57 5
Chris@57 6 Based on HgExplorer by Jari Korhonen
Chris@57 7 Copyright (c) 2010 Jari Korhonen
Chris@57 8 Copyright (c) 2010 Chris Cannam
Chris@57 9 Copyright (c) 2010 Queen Mary, University of London
Chris@50 10
Chris@50 11 This program is free software; you can redistribute it and/or
Chris@50 12 modify it under the terms of the GNU General Public License as
Chris@50 13 published by the Free Software Foundation; either version 2 of the
Chris@50 14 License, or (at your option) any later version. See the file
Chris@50 15 COPYING included with this distribution for more information.
Chris@50 16 */
Chris@50 17
Chris@50 18 #ifndef _TEXT_ABBREV_H_
Chris@50 19 #define _TEXT_ABBREV_H_
Chris@50 20
Chris@50 21 #include <QString>
Chris@50 22 #include <QStringList>
Chris@50 23
Chris@50 24 class QFontMetrics;
Chris@50 25
Chris@50 26 class TextAbbrev
Chris@50 27 {
Chris@50 28 public:
Chris@50 29 enum Policy {
Chris@50 30 ElideEnd,
Chris@50 31 ElideEndAndCommonPrefixes,
Chris@50 32 ElideStart,
Chris@50 33 ElideMiddle
Chris@50 34 };
Chris@50 35
Chris@50 36 /**
Chris@50 37 * Abbreviate the given text to the given maximum length
Chris@50 38 * (including ellipsis), using the given abbreviation policy. If
Chris@50 39 * fuzzy is true, the text will be left alone if it is "not much
Chris@50 40 * more than" the maximum length.
Chris@50 41 *
Chris@50 42 * If ellipsis is non-empty, it will be used to show elisions in
Chris@50 43 * preference to the default (which is "...").
Chris@50 44 */
Chris@50 45 static QString abbreviate(QString text, int maxLength,
Chris@50 46 Policy policy = ElideEnd,
Chris@50 47 bool fuzzy = true,
Chris@50 48 QString ellipsis = "");
Chris@50 49
Chris@50 50 /**
Chris@50 51 * Abbreviate the given text to the given maximum painted width,
Chris@50 52 * using the given abbreviation policy. maxWidth is also modified
Chris@50 53 * so as to return the painted width of the abbreviated text.
Chris@50 54 *
Chris@50 55 * If ellipsis is non-empty, it will be used to show elisions in
Chris@50 56 * preference to the default (which is tr("...")).
Chris@50 57 */
Chris@50 58 static QString abbreviate(QString text,
Chris@50 59 const QFontMetrics &metrics,
Chris@50 60 int &maxWidth,
Chris@50 61 Policy policy = ElideEnd,
Chris@53 62 QString ellipsis = "",
Chris@53 63 int wrapLines = 1);
Chris@50 64
Chris@50 65 /**
Chris@50 66 * Abbreviate all of the given texts to the given maximum length,
Chris@50 67 * using the given abbreviation policy. If fuzzy is true, texts
Chris@50 68 * that are "not much more than" the maximum length will be left
Chris@50 69 * alone.
Chris@50 70 *
Chris@50 71 * If ellipsis is non-empty, it will be used to show elisions in
Chris@50 72 * preference to the default (which is tr("...")).
Chris@50 73 */
Chris@50 74 static QStringList abbreviate(const QStringList &texts, int maxLength,
Chris@50 75 Policy policy = ElideEndAndCommonPrefixes,
Chris@50 76 bool fuzzy = true,
Chris@50 77 QString ellipsis = "");
Chris@50 78
Chris@50 79 /**
Chris@50 80 * Abbreviate all of the given texts to the given maximum painted
Chris@50 81 * width, using the given abbreviation policy. maxWidth is also
Chris@50 82 * modified so as to return the maximum painted width of the
Chris@50 83 * abbreviated texts.
Chris@50 84 *
Chris@50 85 * If ellipsis is non-empty, it will be used to show elisions in
Chris@50 86 * preference to the default (which is tr("...")).
Chris@50 87 */
Chris@50 88 static QStringList abbreviate(const QStringList &texts,
Chris@50 89 const QFontMetrics &metrics,
Chris@50 90 int &maxWidth,
Chris@50 91 Policy policy = ElideEndAndCommonPrefixes,
Chris@50 92 QString ellipsis = "");
Chris@50 93
Chris@50 94 protected:
Chris@50 95 static QString getDefaultEllipsis();
Chris@50 96 static int getFuzzLength(QString ellipsis);
Chris@50 97 static int getFuzzWidth(const QFontMetrics &metrics, QString ellipsis);
Chris@50 98 static QString abbreviateTo(QString text, int characters,
Chris@50 99 Policy policy, QString ellipsis);
Chris@50 100 static QStringList elidePrefixes(const QStringList &texts,
Chris@50 101 int targetReduction,
Chris@50 102 QString ellipsis);
Chris@50 103 static QStringList elidePrefixes(const QStringList &texts,
Chris@50 104 const QFontMetrics &metrics,
Chris@50 105 int targetWidthReduction,
Chris@50 106 QString ellipsis);
Chris@50 107 static int getPrefixLength(const QStringList &texts);
Chris@50 108 };
Chris@50 109
Chris@50 110 #endif
Chris@50 111