ui/qt/widgets/capture_filter_combo.cpp

   1 /* capture_filter_combo.cpp
   2  *
   3  * Wireshark - Network traffic analyzer
   4  * By Gerald Combs <gerald@wireshark.org>
   5  * Copyright 1998 Gerald Combs
   6  *
   7  * SPDX-License-Identifier: GPL-2.0-or-later
   8  */
   9
  10 #include <stdio.h>
  11
  12 #include <ui/qt/utils/qt_ui_utils.h>
  13 #include "ui/recent_utils.h"
  14 #include "ui/recent.h"
  15
  16 #include <epan/prefs.h>
  17
  18 #include <ui/qt/widgets/capture_filter_combo.h>
  19 #include "wireshark_application.h"
  20
  21 CaptureFilterCombo::CaptureFilterCombo(QWidget *parent, bool plain) :
  22     QComboBox(parent),
  23     cf_edit_(NULL)
  24 {
  25     cf_edit_ = new CaptureFilterEdit(this, plain);
  26
  27     setEditable(true);
  28     // Enabling autocompletion here gives us two simultaneous completions:
  29     // Inline (highlighted text) for entire filters, handled here and popup
  30     // completion for fields handled by CaptureFilterEdit.
  31     setAutoCompletion(false);
  32     setLineEdit(cf_edit_);
  33     setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Fixed);
  34     setInsertPolicy(QComboBox::NoInsert);
  35     setAccessibleName(tr("Capture filter selector"));
  36     setStyleSheet(
  37             "QComboBox {"
  38 #ifdef Q_OS_MAC
  39             "  border: 1px solid gray;"
  40 #else
  41             "  border: 1px solid palette(shadow);"
  42 #endif
  43             "  border-radius: 3px;"
  44             "  padding: 0px 0px 0px 0px;"
  45             "  margin-left: 0px;"
  46             "  min-width: 20em;"
  47             " }"
  48
  49             "QComboBox::drop-down {"
  50             "  subcontrol-origin: padding;"
  51             "  subcontrol-position: top right;"
  52             "  width: 16px;"
  53             "  border-left-width: 0px;"
  54             " }"
  55
  56             "QComboBox::down-arrow {"
  57             "  image: url(:/stock_icons/14x14/x-filter-dropdown.png);"
  58             " }"
  59
  60             "QComboBox::down-arrow:on { /* shift the arrow when popup is open */"
  61             "  top: 1px;"
  62             "  left: 1px;"
  63             "}"
  64             );
  65
  66     connect(this, SIGNAL(interfacesChanged()), cf_edit_, SLOT(checkFilter()));
  67     connect(cf_edit_, SIGNAL(pushFilterSyntaxStatus(const QString&)),
  68             this, SIGNAL(pushFilterSyntaxStatus(const QString&)));
  69     connect(cf_edit_, SIGNAL(popFilterSyntaxStatus()),
  70             this, SIGNAL(popFilterSyntaxStatus()));
  71     connect(cf_edit_, SIGNAL(captureFilterSyntaxChanged(bool)),
  72             this, SIGNAL(captureFilterSyntaxChanged(bool)));
  73     connect(cf_edit_, SIGNAL(startCapture()), this, SIGNAL(startCapture()));
  74     connect(cf_edit_, SIGNAL(startCapture()), this, SLOT(saveAndRebuildFilterList()));
  75     connect(wsApp, SIGNAL(appInitialized()), this, SLOT(rebuildFilterList()));
  76     connect(wsApp, SIGNAL(preferencesChanged()), this, SLOT(rebuildFilterList()));
  77
  78     rebuildFilterList();
  79     clearEditText();
  80 }
  81
  82 void CaptureFilterCombo::writeRecent(FILE *rf)
  83 {
  84     int i;
  85
  86     for (i = 0; i < count(); i++) {
  87         const QByteArray& filter = itemText(i).toUtf8();
  88         if (!filter.isEmpty()) {
  89             fprintf(rf, RECENT_KEY_DISPLAY_FILTER ": %s\n", filter.constData());
  90         }
  91     }
  92 }
  93
  94 void CaptureFilterCombo::saveAndRebuildFilterList()
  95 {
  96     if (!currentText().isEmpty()) {
  97         recent_add_cfilter(NULL, currentText().toUtf8().constData());
  98     }
  99     rebuildFilterList();
 100 }
 101
 102 void CaptureFilterCombo::rebuildFilterList()
 103 {
 104     lineEdit()->blockSignals(true);
 105     GList *cfilter_list = recent_get_cfilter_list(NULL);
 106     QString cur_filter = currentText();
 107     clear();
 108     for (GList *li = g_list_first(cfilter_list); li != NULL; li = g_list_next(li)) {
 109         insertItem(0, (const gchar *) li->data);
 110     }
 111     lineEdit()->setText(cur_filter);
 112     lineEdit()->blockSignals(false);
 113 }
 114
 115 /*
 116  * Editor modelines
 117  *
 118  * Local Variables:
 119  * c-basic-offset: 4
 120  * tab-width: 8
 121  * indent-tabs-mode: nil
 122  * End:
 123  *
 124  * ex: set shiftwidth=4 tabstop=8 expandtab:
 125  * :indentSize=4:tabSize=8:noTabs=true:
 126  */