KisChangeGuidesCommand::Private Struct Reference

Public Types
enum	Status {   NO_DIFF = 0 , ONE_DIFF = 1 , ADDITION = 4 , REMOVAL = 16 ,   OTHER_DIFF = 1024 }

Public Member Functions
Status	diff (const QList< qreal > &first, const QList< qreal > &second)
	Private (KisDocument *_doc, KisChangeGuidesCommand *q)
bool	sameOrOnlyMovedOneGuideBetween (const KisGuidesConfig &first, const KisGuidesConfig &second)
void	switchTo (const KisGuidesConfig &config)

Public Attributes
KisDocument *	doc
bool	firstRedo
KisGuidesConfig	newGuides
KisGuidesConfig	oldGuides
KisChangeGuidesCommand *	q

Detailed Description

Definition at line 16 of file kis_change_guides_command.cpp.

Member Enumeration Documentation

Status

enum KisChangeGuidesCommand::Private::Status

Enumerator
NO_DIFF
ONE_DIFF
ADDITION
REMOVAL
OTHER_DIFF

Definition at line 21 of file kis_change_guides_command.cpp.

                {
        NO_DIFF = 0,
        ONE_DIFF = 1,
        ADDITION = 4,
        REMOVAL = 16,
        OTHER_DIFF = 1024
    };

Constructor & Destructor Documentation

Private()

KisChangeGuidesCommand::Private::Private ( KisDocument * _doc, KisChangeGuidesCommand * q )

inline

Definition at line 18 of file kis_change_guides_command.cpp.

: doc(_doc), q(q), firstRedo(true) {}

Member Function Documentation

diff()

KisChangeGuidesCommand::Private::Status KisChangeGuidesCommand::Private::diff	(	const QList< qreal > &	first,
		const QList< qreal > &	second )

Definition at line 59 of file kis_change_guides_command.cpp.

{
    if (first.size() == second.size()) {
        int diffCount = 0;
        for (int i = 0; i < first.size(); ++i) {
            if (first[i] != second[i]) {
                ++diffCount;
                if (diffCount > 1) {
                    return OTHER_DIFF;
                }
            }
        }
        return diffCount == 0 ? NO_DIFF : ONE_DIFF;
    } else if (first.size() - second.size() == -1) { // added a guide
        QList<qreal> beforeRemoval = second;
        beforeRemoval.takeLast();
        return first == beforeRemoval ? ADDITION : OTHER_DIFF;
    } else if (first.size() - second.size() == 1) { // removed a guide
        bool skippedItem = false;
        for (QListIterator<qreal> i(first), j(second); i.hasNext() && j.hasNext(); ) {
            qreal curFirst = i.next();
            qreal curSecond = j.next();
            if (!skippedItem && curFirst != curSecond) {
                curFirst = i.next(); // try to go to the next item and see if it matches
            }
            if (curFirst != curSecond) {
                return OTHER_DIFF;
            }
        }
        // here we conclude only one guide is removed
        return REMOVAL;
    } else {
        return OTHER_DIFF;
    }
}

sameOrOnlyMovedOneGuideBetween()

bool KisChangeGuidesCommand::Private::sameOrOnlyMovedOneGuideBetween	(	const KisGuidesConfig &	first,
		const KisGuidesConfig &	second )

Definition at line 41 of file kis_change_guides_command.cpp.

{
    int ret = diff(first.horizontalGuideLines(), second.horizontalGuideLines()) +
        diff(first.verticalGuideLines(), second.verticalGuideLines());
 
    if (ret == ADDITION) {
        q->setText(kundo2_i18n("Add Guide"));
    } else if (ret == REMOVAL) {
        q->setText(kundo2_i18n("Remove Guide"));
    } else if (ret == NO_DIFF || ret == ONE_DIFF) { // meaning we will still merge it
        // XXX: how to deal with NO_DIFF (the command "should" be removed -- how?)
        q->setText(kundo2_i18n("Edit Guides"));
    } else {
        return false;
    }
    return true;
}

References ADDITION, diff(), KisGuidesConfig::horizontalGuideLines(), kundo2_i18n(), NO_DIFF, ONE_DIFF, q, REMOVAL, KUndo2Command::setText(), and KisGuidesConfig::verticalGuideLines().

switchTo()

void KisChangeGuidesCommand::Private::switchTo

(

const KisGuidesConfig &

config

)

Definition at line 95 of file kis_change_guides_command.cpp.

{
    KisGuidesConfig curConfig = doc->guidesConfig();
    curConfig.setHorizontalGuideLines(config.horizontalGuideLines());
    curConfig.setVerticalGuideLines(config.verticalGuideLines());
    doc->setGuidesConfig(curConfig);
}

References KisGuidesConfig::horizontalGuideLines(), KisGuidesConfig::setHorizontalGuideLines(), KisGuidesConfig::setVerticalGuideLines(), and KisGuidesConfig::verticalGuideLines().

Member Data Documentation

doc

KisDocument* KisChangeGuidesCommand::Private::doc

Definition at line 32 of file kis_change_guides_command.cpp.

firstRedo

bool KisChangeGuidesCommand::Private::firstRedo

Definition at line 38 of file kis_change_guides_command.cpp.

newGuides

KisGuidesConfig KisChangeGuidesCommand::Private::newGuides

Definition at line 36 of file kis_change_guides_command.cpp.

oldGuides

KisGuidesConfig KisChangeGuidesCommand::Private::oldGuides

Definition at line 35 of file kis_change_guides_command.cpp.

q

KisChangeGuidesCommand* KisChangeGuidesCommand::Private::q

Definition at line 33 of file kis_change_guides_command.cpp.

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The documentation for this struct was generated from the following file:

• libs/ui/canvas/kis_change_guides_command.cpp