text: /* font_color_preferences_frame.cpp
   *
   * Wireshark - Network traffic analyzer
   * By Gerald Combs <gerald@wireshark.org>
   * Copyright 1998 Gerald Combs
   *
   * SPDX-License-Identifier: GPL-2.0-or-later
   */
  #include <config.h>
  
  #include <ui/qt/utils/qt_ui_utils.h>
  
  #include "font_color_preferences_frame.h"
  #include <ui/qt/models/pref_models.h>
  #include <ui_font_color_preferences_frame.h>
  #include <ui/qt/utils/color_utils.h>
  #include "wireshark_application.h"
  
  #include <QFontDialog>
  #include <QColorDialog>
  
  #include <epan/prefs-int.h>
  
  //: These are pangrams. Feel free to replace with nonsense text that spans your alphabet.
  //: https://en.wikipedia.org/wiki/Pangram
  static const char *font_pangrams_[] = {
      QT_TR_NOOP("Example GIF query packets have jumbo window sizes"),
      QT_TR_NOOP("Lazy badgers move unique waxy jellyfish packets")
  };
  const int num_font_pangrams_ = (sizeof font_pangrams_ / sizeof font_pangrams_[0]);
  
  FontColorPreferencesFrame::FontColorPreferencesFrame(QWidget *parent) :
      QFrame(parent),
      ui(new Ui::FontColorPreferencesFrame)
  {
      ui->setupUi(this);
  
      pref_qt_gui_font_name_ = prefFromPrefPtr(&prefs.gui_qt_font_name);
      pref_active_fg_ = prefFromPrefPtr(&prefs.gui_active_fg);
      pref_active_bg_ = prefFromPrefPtr(&prefs.gui_active_bg);
      pref_active_style_ = prefFromPrefPtr(&prefs.gui_active_style);
      pref_inactive_fg_ = prefFromPrefPtr(&prefs.gui_inactive_fg);
      pref_inactive_bg_ = prefFromPrefPtr(&prefs.gui_inactive_bg);
      pref_inactive_style_ = prefFromPrefPtr(&prefs.gui_inactive_style);
      pref_marked_fg_ = prefFromPrefPtr(&prefs.gui_marked_fg);
      pref_marked_bg_ = prefFromPrefPtr(&prefs.gui_marked_bg);
      pref_ignored_fg_ = prefFromPrefPtr(&prefs.gui_ignored_fg);
      pref_ignored_bg_ = prefFromPrefPtr(&prefs.gui_ignored_bg);
      pref_client_fg_ = prefFromPrefPtr(&prefs.st_client_fg);
      pref_client_bg_ = prefFromPrefPtr(&prefs.st_client_bg);
      pref_server_fg_ = prefFromPrefPtr(&prefs.st_server_fg);
      pref_server_bg_ = prefFromPrefPtr(&prefs.st_server_bg);
      pref_valid_bg_ = prefFromPrefPtr(&prefs.gui_text_valid);
      pref_invalid_bg_ = prefFromPrefPtr(&prefs.gui_text_invalid);
      pref_deprecated_bg_ = prefFromPrefPtr(&prefs.gui_text_deprecated);
  
      cur_font_.fromString(prefs_get_string_value(pref_qt_gui_font_name_, pref_stashed));
  
  }
  
  FontColorPreferencesFrame::~FontColorPreferencesFrame()
  {
      delete ui;
  }
  
  void FontColorPreferencesFrame::showEvent(QShowEvent *)
  {
      GRand *rand_state = g_rand_new();
      QString pangram = QString(font_pangrams_[g_rand_int_range(rand_state, 0, num_font_pangrams_)]) + " 0123456789";
      ui->fontSampleLineEdit->setText(pangram);
      ui->fontSampleLineEdit->setCursorPosition(0);
      ui->fontSampleLineEdit->setMinimumWidth(wsApp->monospaceTextSize(pangram.toUtf8().constData()) + wsApp->monospaceTextSize(" "));
      g_rand_free(rand_state);
  
      updateWidgets();
  }
  
  void FontColorPreferencesFrame::updateWidgets()
  {
      gint     colorstyle;
      QColor   foreground;
      QColor   background1;
      QColor   background2;
      QPalette default_pal;
  
      int margin = style()->pixelMetric(QStyle::PM_LayoutLeftMargin);
  
      ui->fontPushButton->setText(
          cur_font_.family() + " " + cur_font_.styleName() + " " +
          QString::number(cur_font_.pointSizeF(), 'f', 1));
      ui->fontSampleLineEdit->setFont(cur_font_);
  
      QString line_edit_ss = QString("QLineEdit { margin-left: %1px; }").arg(margin);
      ui->fontSampleLineEdit->setStyleSheet(line_edit_ss);
  
      QString color_button_ss =
          "QPushButton {"
          "  border: 1px solid palette(Dark);"
          "  background-color: %1;"
          "  margin-left: %2px;"
          "}";
      QString sample_text_ss =
          "QLineEdit {"
          "  color: %1;"
          "  background-color: %2;"
          "}";
      QString sample_text_ex_ss =
          "QLineEdit {"
          "  color: %1;"
          "  background-color: qlineargradient(x1:0, y1:0, x2:0, y2:1 stop: 0 %3, stop: 0.5 %2, stop: 1 %3);"
          "}";
  
      //
      // Sample active selected item
      //
      colorstyle = prefs_get_enum_value(pref_active_style_, pref_stashed);
  
      // Make foreground and background colors
      switch (colorstyle)
      {
      case COLOR_STYLE_DEFAULT:
          default_pal = QApplication::palette();
          default_pal.setCurrentColorGroup(QPalette::Active);
  
          foreground  = default_pal.highlightedText().color();
          background1 = default_pal.highlight().color();
          background2 = default_pal.highlight().color();
          break;
  
      case COLOR_STYLE_FLAT:
          foreground  = ColorUtils::fromColorT(prefs_get_color_value(pref_active_fg_, pref_stashed));
          background1 = ColorUtils::fromColorT(prefs_get_color_value(pref_active_bg_, pref_stashed));
          background2 = ColorUtils::fromColorT(prefs_get_color_value(pref_active_bg_, pref_stashed));
          break;
  
      case COLOR_STYLE_GRADIENT:
          foreground  = ColorUtils::fromColorT(prefs_get_color_value(pref_active_fg_, pref_stashed));
          background1 = ColorUtils::fromColorT(prefs_get_color_value(pref_active_bg_, pref_stashed));
          background2 = QColor::fromRgb(ColorUtils::alphaBlend(foreground, background1, COLOR_STYLE_ALPHA));
          break;
      }
  
      ui->activeFGPushButton->setStyleSheet(color_button_ss.arg(foreground.name()).arg(margin));
      ui->activeBGPushButton->setStyleSheet(color_button_ss.arg(background1.name()).arg(0));
      ui->activeSampleLineEdit->setStyleSheet(sample_text_ex_ss.arg(
                                                  foreground.name(),
                                                  background1.name(),
                                                  background2.name()));
      ui->activeSampleLineEdit->setFont(cur_font_);
      ui->activeStyleComboBox->setCurrentIndex(prefs_get_enum_value(pref_active_style_, pref_stashed));
  
      // Enable or disable the widgets
      ui->activeFGPushButton->setEnabled(colorstyle != COLOR_STYLE_DEFAULT);
      ui->activeBGPushButton->setEnabled(colorstyle != COLOR_STYLE_DEFAULT);
  
      //
      // Sample inactive selected item
      //
      colorstyle = prefs_get_enum_value(pref_inactive_style_, pref_stashed);
  
      // Make foreground and background colors
      switch (colorstyle)
      {
      case COLOR_STYLE_DEFAULT:
          default_pal = QApplication::palette();
          default_pal.setCurrentColorGroup(QPalette::Inactive);
  
          foreground  = default_pal.highlightedText().color();
          background1 = default_pal.highlight().color();
          background2 = default_pal.highlight().color();
          break;
  
      case COLOR_STYLE_FLAT:
          foreground  = ColorUtils::fromColorT(prefs_get_color_value(pref_inactive_fg_, pref_stashed));
          background1 = ColorUtils::fromColorT(prefs_get_color_value(pref_inactive_bg_, pref_stashed));
          background2 = ColorUtils::fromColorT(prefs_get_color_value(pref_inactive_bg_, pref_stashed));
          break;
  
      case COLOR_STYLE_GRADIENT:
          foreground  = ColorUtils::fromColorT(prefs_get_color_value(pref_inactive_fg_, pref_stashed));
          background1 = ColorUtils::fromColorT(prefs_get_color_value(pref_inactive_bg_, pref_stashed));
          background2 = QColor::fromRgb(ColorUtils::alphaBlend(foreground, background1, COLOR_STYLE_ALPHA));
          break;
      }
  
      ui->inactiveFGPushButton->setStyleSheet(color_button_ss.arg(foreground.name()).arg(margin));
      ui->inactiveBGPushButton->setStyleSheet(color_button_ss.arg(background1.name()).arg(0));
      ui->inactiveSampleLineEdit->setStyleSheet(sample_text_ex_ss.arg(
                                                  foreground.name(),
                                                  background1.name(),
                                                  background2.name()));
      ui->inactiveSampleLineEdit->setFont(cur_font_);
      ui->inactiveStyleComboBox->setCurrentIndex(prefs_get_enum_value(pref_inactive_style_, pref_stashed));
  
      // Enable or disable the widgets
      ui->inactiveFGPushButton->setEnabled(colorstyle != COLOR_STYLE_DEFAULT);
      ui->inactiveBGPushButton->setEnabled(colorstyle != COLOR_STYLE_DEFAULT);
  
      //
      // Sample marked packet text
      //
      ui->markedFGPushButton->setStyleSheet(color_button_ss.arg(
                                                ColorUtils::fromColorT(prefs_get_color_value(pref_marked_fg_, pref_stashed)).name())
                                                .arg(margin));
      ui->markedBGPushButton->setStyleSheet(color_button_ss.arg(
                                                ColorUtils::fromColorT(prefs_get_color_value(pref_marked_bg_, pref_stashed)).name())
                                                .arg(0));
      ui->markedSampleLineEdit->setStyleSheet(sample_text_ss.arg(
                                                  ColorUtils::fromColorT(prefs_get_color_value(pref_marked_fg_, pref_stashed)).name(),
                                                  ColorUtils::fromColorT(prefs_get_color_value(pref_marked_bg_, pref_stashed)).name()));
      ui->markedSampleLineEdit->setFont(cur_font_);
  
      //
      // Sample ignored packet text
      //
      ui->ignoredFGPushButton->setStyleSheet(color_button_ss.arg(
                                                 ColorUtils::fromColorT(prefs_get_color_value(pref_ignored_fg_, pref_stashed)).name())
                                                 .arg(margin));
      ui->ignoredBGPushButton->setStyleSheet(color_button_ss.arg(
                                                 ColorUtils::fromColorT(prefs_get_color_value(pref_ignored_bg_, pref_stashed)).name())
                                                 .arg(0));
      ui->ignoredSampleLineEdit->setStyleSheet(sample_text_ss.arg(
                                                   ColorUtils::fromColorT(prefs_get_color_value(pref_ignored_fg_, pref_stashed)).name(),
                                                   ColorUtils::fromColorT(prefs_get_color_value(pref_ignored_bg_, pref_stashed)).name()));
      ui->ignoredSampleLineEdit->setFont(cur_font_);
  
      //
      // Sample "Follow Stream" client text
      //
      ui->clientFGPushButton->setStyleSheet(color_button_ss.arg(
                                                ColorUtils::fromColorT(prefs_get_color_value(pref_client_fg_, pref_stashed)).name())
                                                .arg(margin));
      ui->clientBGPushButton->setStyleSheet(color_button_ss.arg(
                                                ColorUtils::fromColorT(prefs_get_color_value(pref_client_bg_, pref_stashed)).name())
                                                .arg(0));
      ui->clientSampleLineEdit->setStyleSheet(sample_text_ss.arg(
                                                  ColorUtils::fromColorT(prefs_get_color_value(pref_client_fg_, pref_stashed)).name(),
                                                  ColorUtils::fromColorT(prefs_get_color_value(pref_client_bg_, pref_stashed)).name()));
      ui->clientSampleLineEdit->setFont(cur_font_);
  
      //
      // Sample "Follow Stream" server text
      //
      ui->serverFGPushButton->setStyleSheet(color_button_ss.arg(
                                                ColorUtils::fromColorT(prefs_get_color_value(pref_server_fg_, pref_stashed)).name())
                                                .arg(margin));
      ui->serverBGPushButton->setStyleSheet(color_button_ss.arg(
                                                ColorUtils::fromColorT(prefs_get_color_value(pref_server_bg_, pref_stashed)).name())
                                                .arg(0));
      ui->serverSampleLineEdit->setStyleSheet(sample_text_ss.arg(
                                                  ColorUtils::fromColorT(prefs_get_color_value(pref_server_fg_, pref_stashed)).name(),
                                                  ColorUtils::fromColorT(prefs_get_color_value(pref_server_bg_, pref_stashed)).name()));
      ui->serverSampleLineEdit->setFont(cur_font_);
  
      //
      // Sample valid filter
      //
      ui->validFilterBGPushButton->setStyleSheet(color_button_ss.arg(
                                                     ColorUtils::fromColorT(prefs_get_color_value(pref_valid_bg_, pref_stashed)).name())
                                                     .arg(0));
      ui->validFilterSampleLineEdit->setStyleSheet(sample_text_ss.arg(
                                                       "palette(text)",
                                                       ColorUtils::fromColorT(prefs_get_color_value(pref_valid_bg_, pref_stashed)).name()));
  
      //
      // Sample invalid filter
      //
      ui->invalidFilterBGPushButton->setStyleSheet(color_button_ss.arg(
                                                       ColorUtils::fromColorT(prefs_get_color_value(pref_invalid_bg_, pref_stashed)).name())
                                                       .arg(0));
      ui->invalidFilterSampleLineEdit->setStyleSheet(sample_text_ss.arg(
                                                         "palette(text)",
                                                         ColorUtils::fromColorT(prefs_get_color_value(pref_invalid_bg_, pref_stashed)).name()));
  
      //
      // Sample warning filter
      //
      ui->deprecatedFilterBGPushButton->setStyleSheet(color_button_ss.arg(
                                                          ColorUtils::fromColorT(prefs_get_color_value(pref_deprecated_bg_, pref_stashed)).name())
                                                          .arg(0));
      ui->deprecatedFilterSampleLineEdit->setStyleSheet(sample_text_ss.arg(
                                                            "palette(text)",
                                                            ColorUtils::fromColorT(prefs_get_color_value(pref_deprecated_bg_, pref_stashed)).name()));
  }
  
  void FontColorPreferencesFrame::changeColor(pref_t *pref)
  {
      QColorDialog color_dlg;
      color_t* color = prefs_get_color_value(pref, pref_stashed);
  
      color_dlg.setCurrentColor(QColor(
                                    color->red >> 8,
                                    color->green >> 8,
                                    color->blue >> 8
                                    ));
      if (color_dlg.exec() == QDialog::Accepted) {
          QColor cc = color_dlg.currentColor();
          color_t new_color;
          new_color.red = cc.red() << 8 | cc.red();
          new_color.green = cc.green() << 8 | cc.green();
          new_color.blue = cc.blue() << 8 | cc.blue();
          prefs_set_color_value(pref, new_color, pref_stashed);
          updateWidgets();
      }
  }
  
  void FontColorPreferencesFrame::on_fontPushButton_clicked()
  {
      bool ok;
      QFont new_font = QFontDialog::getFont(&ok, cur_font_, this, wsApp->windowTitleString(tr("Font")));
      if (ok) {
          prefs_set_string_value(pref_qt_gui_font_name_, new_font.toString().toStdString().c_str(), pref_stashed);
          cur_font_ = new_font;
          updateWidgets();
      }
  }
  
  void FontColorPreferencesFrame::on_activeFGPushButton_clicked()
  {
      changeColor(pref_active_fg_);
  }
  
  void FontColorPreferencesFrame::on_activeBGPushButton_clicked()
  {
      changeColor(pref_active_bg_);
  }
  
  void FontColorPreferencesFrame::on_activeStyleComboBox_currentIndexChanged(int index)
  {
      prefs_set_enum_value(pref_active_style_, index, pref_stashed);
      updateWidgets();
  }
  
  
  void FontColorPreferencesFrame::on_inactiveFGPushButton_clicked()
  {
      changeColor(pref_inactive_fg_);
  }
  
  void FontColorPreferencesFrame::on_inactiveBGPushButton_clicked()
  {
      changeColor(pref_inactive_bg_);
  }
  
  void FontColorPreferencesFrame::on_inactiveStyleComboBox_currentIndexChanged(int index)
  {
      prefs_set_enum_value(pref_inactive_style_, index, pref_stashed);
      updateWidgets();
  }
  
  void FontColorPreferencesFrame::on_markedFGPushButton_clicked()
  {
      changeColor(pref_marked_fg_);
  }
  
  void FontColorPreferencesFrame::on_markedBGPushButton_clicked()
  {
      changeColor(pref_marked_bg_);
  }
  
  void FontColorPreferencesFrame::on_ignoredFGPushButton_clicked()
  {
      changeColor(pref_ignored_fg_);
  }
  
  void FontColorPreferencesFrame::on_ignoredBGPushButton_clicked()
  {
      changeColor(pref_ignored_bg_);
  }
  
  void FontColorPreferencesFrame::on_clientFGPushButton_clicked()
  {
      changeColor(pref_client_fg_);
  }
  
  void FontColorPreferencesFrame::on_clientBGPushButton_clicked()
  {
      changeColor(pref_client_bg_);
  }
  
  void FontColorPreferencesFrame::on_serverFGPushButton_clicked()
  {
      changeColor(pref_server_fg_);
  }
  
  void FontColorPreferencesFrame::on_serverBGPushButton_clicked()
  {
      changeColor(pref_server_bg_);
  }
  
  void FontColorPreferencesFrame::on_validFilterBGPushButton_clicked()
  {
      changeColor(pref_valid_bg_);
  }
  
  void FontColorPreferencesFrame::on_invalidFilterBGPushButton_clicked()
  {
      changeColor(pref_invalid_bg_);
  }
  
  void FontColorPreferencesFrame::on_deprecatedFilterBGPushButton_clicked()
  {
      changeColor(pref_deprecated_bg_);
  }
  
  /*
   * Editor modelines
   *
   * Local Variables:
   * c-basic-offset: 4
   * tab-width: 8
   * indent-tabs-mode: nil
   * End:
   *
   * ex: set shiftwidth=4 tabstop=8 expandtab:
   * :indentSize=4:tabSize=8:noTabs=true:
   */
  