src/gui/autoexpandabledialog.cpp

   1 /*
   2  * Bittorrent Client using Qt and libtorrent.
   3  * Copyright (C) 2013  Nick Tiskov <daymansmail@gmail.com>
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License
   7  * as published by the Free Software Foundation; either version 2
   8  * of the License, or (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  18  *
  19  * In addition, as a special exception, the copyright holders give permission to
  20  * link this program with the OpenSSL project's "OpenSSL" library (or with
  21  * modified versions of it that use the same license as the "OpenSSL" library),
  22  * and distribute the linked executables. You must obey the GNU General Public
  23  * License in all respects for all of the code used other than "OpenSSL".  If you
  24  * modify file(s), you may extend this exception to your version of the file(s),
  25  * but you are not obligated to do so. If you do not wish to do so, delete this
  26  * exception statement from your version.
  27  */
  28
  29 #include "autoexpandabledialog.h"
  30
  31 #include "base/utils/fs.h"
  32 #include "ui_autoexpandabledialog.h"
  33 #include "utils.h"
  34
  35 AutoExpandableDialog::AutoExpandableDialog(QWidget *parent)
  36     : QDialog(parent)
  37     , m_ui(new Ui::AutoExpandableDialog)
  38 {
  39     m_ui->setupUi(this);
  40 }
  41
  42 AutoExpandableDialog::~AutoExpandableDialog()
  43 {
  44     delete m_ui;
  45 }
  46
  47 QString AutoExpandableDialog::getText(QWidget *parent, const QString &title, const QString &label,
  48                                       QLineEdit::EchoMode mode, const QString &text,
  49                                       bool *ok, const bool excludeExtension, Qt::InputMethodHints inputMethodHints)
  50 {
  51     AutoExpandableDialog d(parent);
  52     d.setWindowTitle(title);
  53     d.m_ui->textLabel->setText(label);
  54     d.m_ui->textEdit->setText(text);
  55     d.m_ui->textEdit->setEchoMode(mode);
  56     d.m_ui->textEdit->setInputMethodHints(inputMethodHints);
  57
  58     d.m_ui->textEdit->selectAll();
  59     if (excludeExtension)
  60     {
  61         const QString extension = Utils::Fs::fileExtension(text);
  62         if (!extension.isEmpty())
  63             d.m_ui->textEdit->setSelection(0, (text.length() - extension.length() - 1));
  64     }
  65
  66     bool res = d.exec();
  67     if (ok)
  68         *ok = res;
  69
  70     if (!res) return {};
  71
  72     return d.m_ui->textEdit->text();
  73 }
  74
  75 void AutoExpandableDialog::showEvent(QShowEvent *e)
  76 {
  77     // Overriding showEvent is required for consistent UI with fixed size under custom DPI
  78     QDialog::showEvent(e);
  79
  80     // Show dialog and resize textbox to fit the text
  81     // NOTE: For unknown reason QFontMetrics gets more accurate when called from showEvent.
  82     int wd = m_ui->textEdit->fontMetrics().horizontalAdvance(m_ui->textEdit->text()) + 4;
  83
  84     if (!windowTitle().isEmpty())
  85     {
  86         // not really the font metrics in window title, so we enlarge it a bit,
  87         // including the small icon and close button width
  88         int w = fontMetrics().horizontalAdvance(windowTitle()) * 1.8;
  89         wd = std::max(wd, w);
  90     }
  91
  92     if (!m_ui->textLabel->text().isEmpty())
  93     {
  94         int w = m_ui->textLabel->fontMetrics().horizontalAdvance(m_ui->textLabel->text());
  95         wd = std::max(wd, w);
  96     }
  97
  98     // Now resize the dialog to fit the contents
  99     // max width of text from either of: label, title, textedit
 100     // If the value is less than dialog default size, default size is used
 101     if (wd > width())
 102     {
 103         QSize size = {width() - m_ui->verticalLayout->sizeHint().width() + wd, height()};
 104         Utils::Gui::resize(this, size);
 105     }
 106 }