File: kassistantdialog.cpp

package info (click to toggle)
kwidgetsaddons 5.28.0-3
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 62,388 kB
  • ctags: 3,611
  • sloc: cpp: 26,647; python: 682; sh: 23; makefile: 6
file content (205 lines) | stat: -rw-r--r-- 6,554 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
/* This file is part of the KDE libraries
    Copyright (C) 2006 Olivier Goffart <ogoffart at kde.org>

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License version 2 as published by the Free Software Foundation.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Library General Public License for more details.

    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.
*/

#include "kassistantdialog.h"

#include <QDialogButtonBox>
#include <QIcon>
#include <QPushButton>
#include <QApplication>

#include <QHash>

class KAssistantDialog::Private
{
public:
    Private(KAssistantDialog *q)
        : q(q)
    {
    }

    KAssistantDialog *q;
    QHash<KPageWidgetItem *, bool> valid;
    QHash<KPageWidgetItem *, bool> appropriate;
    KPageWidgetModel *pageModel;
    QPushButton *backButton;
    QPushButton *nextButton;
    QPushButton *finishButton;

    void init();
    void _k_slotUpdateButtons();

    QModelIndex getNext(QModelIndex nextIndex)
    {
        QModelIndex currentIndex;
        do {
            currentIndex = nextIndex;
            nextIndex = currentIndex.child(0, 0);
            if (!nextIndex.isValid()) {
                nextIndex = currentIndex.sibling(currentIndex.row() + 1, 0);
            }
        } while (nextIndex.isValid() && !appropriate.value(pageModel->item(nextIndex), true));
        return nextIndex;
    }

    QModelIndex getPrevious(QModelIndex nextIndex)
    {
        QModelIndex currentIndex;
        do {
            currentIndex = nextIndex;
            nextIndex = currentIndex.sibling(currentIndex.row() - 1, 0);
            if (!nextIndex.isValid()) {
                nextIndex = currentIndex.parent();
            }
        } while (nextIndex.isValid() && !appropriate.value(pageModel->item(nextIndex), true));
        return nextIndex;
    }
};

KAssistantDialog::KAssistantDialog(QWidget *parent, Qt::WindowFlags flags)
    : KPageDialog(parent, flags), d(new Private(this))
{
    d->init();
    //workaround to get the page model
    KPageWidget *pagewidget = findChild<KPageWidget *>();
    Q_ASSERT(pagewidget);
    d->pageModel = static_cast<KPageWidgetModel *>(pagewidget->model());
}

KAssistantDialog::KAssistantDialog(KPageWidget *widget, QWidget *parent, Qt::WindowFlags flags)
    : KPageDialog(widget, parent, flags), d(new Private(this))
{
    d->init();
    d->pageModel = static_cast<KPageWidgetModel *>(widget->model());
}

KAssistantDialog::~KAssistantDialog()
{
    delete d;
}

void KAssistantDialog::Private::init()
{
    QDialogButtonBox *buttonBox = q->buttonBox();

    buttonBox->setStandardButtons(QDialogButtonBox::Cancel | QDialogButtonBox::Help);
    backButton = new QPushButton;

    const QString iconBack = QApplication::isRightToLeft() ? QStringLiteral("go-next") : QStringLiteral("go-previous");
    const QString iconNext = QApplication::isRightToLeft() ? QStringLiteral("go-previous") : QStringLiteral("go-next");
    backButton->setText(tr("&Back", "go back"));
    backButton->setIcon(QIcon::fromTheme(iconBack));
    backButton->setToolTip(tr("Go back one step"));
    q->connect(backButton, &QAbstractButton::clicked, q, &KAssistantDialog::back);
    buttonBox->addButton(backButton, QDialogButtonBox::ActionRole);

    nextButton = new QPushButton;
    nextButton->setText(tr("Next", "Opposite to Back"));
    nextButton->setIcon(QIcon::fromTheme(iconNext));
    nextButton->setDefault(true);
    q->connect(nextButton, &QAbstractButton::clicked, q, &KAssistantDialog::next);
    buttonBox->addButton(nextButton, QDialogButtonBox::ActionRole);

    finishButton = new QPushButton;
    finishButton->setText(tr("Finish"));
    finishButton->setIcon(QIcon::fromTheme(QStringLiteral("dialog-ok-apply")));
    buttonBox->addButton(finishButton, QDialogButtonBox::AcceptRole);

    q->setFaceType(KPageDialog::Plain);

    q->connect(q, SIGNAL(currentPageChanged(KPageWidgetItem*,KPageWidgetItem*)), q, SLOT(_k_slotUpdateButtons()));
}

void KAssistantDialog::back()
{
    QModelIndex nextIndex = d->getPrevious(d->pageModel->index(currentPage()));
    if (nextIndex.isValid()) {
        setCurrentPage(d->pageModel->item(nextIndex));
    }
}

void KAssistantDialog::next()
{
    QModelIndex nextIndex = d->getNext(d->pageModel->index(currentPage()));
    if (nextIndex.isValid()) {
        setCurrentPage(d->pageModel->item(nextIndex));
    } else if (isValid(currentPage())) {
        accept();
    }
}

void KAssistantDialog::setValid(KPageWidgetItem *page, bool enable)
{
    d->valid[page] = enable;
    if (page == currentPage()) {
        d->_k_slotUpdateButtons();
    }
}

bool KAssistantDialog::isValid(KPageWidgetItem *page) const
{
    return d->valid.value(page, true);
}

void KAssistantDialog::Private::_k_slotUpdateButtons()
{
    QModelIndex currentIndex = pageModel->index(q->currentPage());
    //change the caption of the next/finish button
    QModelIndex nextIndex = getNext(currentIndex);
    finishButton->setEnabled(!nextIndex.isValid() && q->isValid(q->currentPage()));
    nextButton->setEnabled(nextIndex.isValid() && q->isValid(q->currentPage()));
    finishButton->setDefault(!nextIndex.isValid());
    nextButton->setDefault(nextIndex.isValid());
    //enable or disable the back button;
    nextIndex = getPrevious(currentIndex);
    backButton->setEnabled(nextIndex.isValid());
}

void KAssistantDialog::showEvent(QShowEvent *event)
{
    d->_k_slotUpdateButtons(); //called because last time that function was called is when the first page was added, so the next button show "finish"
    KPageDialog::showEvent(event);
}

void KAssistantDialog::setAppropriate(KPageWidgetItem *page, bool appropriate)
{
    d->appropriate[page] = appropriate;
    d->_k_slotUpdateButtons();
}

bool KAssistantDialog::isAppropriate(KPageWidgetItem *page) const
{
    return d->appropriate.value(page, true);
}

QPushButton* KAssistantDialog::backButton() const
{
    return d->backButton;
}

QPushButton* KAssistantDialog::nextButton() const
{
    return d->nextButton;
}

QPushButton* KAssistantDialog::finishButton() const
{
    return d->finishButton;
}

#include "moc_kassistantdialog.cpp"