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/* display_filter_combo.cpp
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0+*/
#include <stdio.h>
#include <ui/qt/utils/qt_ui_utils.h>
#include "ui/recent_utils.h"
#include "ui/recent.h"
#include <epan/prefs.h>
#include <QHelpEvent>
#include <QStyleOptionComboBox>
#include <ui/qt/widgets/display_filter_edit.h>
#include <ui/qt/widgets/display_filter_combo.h>
#include "wireshark_application.h"
// If we ever add support for multiple windows this will need to be replaced.
static DisplayFilterCombo *cur_display_filter_combo = NULL;
DisplayFilterCombo::DisplayFilterCombo(QWidget *parent) :
QComboBox(parent)
{
setEditable(true);
// Enabling autocompletion here gives us two simultaneous completions:
// Inline (highlighted text) for entire filters, handled here and popup
// completion for fields handled by DisplayFilterEdit.
setAutoCompletion(false);
setLineEdit(new DisplayFilterEdit(this, DisplayFilterToApply));
setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Fixed);
setAccessibleName(tr("Display filter selector"));
cur_display_filter_combo = this;
setStyleSheet(
"QComboBox {"
#ifdef Q_OS_MAC
" border: 1px solid gray;"
#else
" border: 1px solid palette(shadow);"
#endif
" border-radius: 3px;"
" padding: 0px 0px 0px 0px;"
" margin-left: 0px;"
" min-width: 20em;"
" }"
"QComboBox::drop-down {"
" subcontrol-origin: padding;"
" subcontrol-position: top right;"
" width: 14px;"
" border-left-width: 0px;"
" }"
"QComboBox::down-arrow {"
" image: url(:/stock_icons/14x14/x-filter-dropdown.png);"
" }"
"QComboBox::down-arrow:on { /* shift the arrow when popup is open */"
" top: 1px;"
" left: 1px;"
"}"
);
setToolTip(tr("Select from previously used filters."));
connect(wsApp, SIGNAL(preferencesChanged()), this, SLOT(updateMaxCount()));
}
extern "C" void dfilter_recent_combo_write_all(FILE *rf) {
if (!cur_display_filter_combo)
return;
cur_display_filter_combo->writeRecent(rf);
}
void DisplayFilterCombo::writeRecent(FILE *rf) {
int i;
for (i = 0; i < count(); i++) {
const QByteArray& filter = itemText(i).toUtf8();
if (!filter.isEmpty()) {
fprintf(rf, RECENT_KEY_DISPLAY_FILTER ": %s\n", filter.constData());
}
}
}
bool DisplayFilterCombo::event(QEvent *event)
{
switch (event->type()) {
case QEvent::ToolTip:
{
// Only show a tooltip for the arrow.
QHelpEvent *he = (QHelpEvent *) event;
QStyleOptionComboBox opt;
initStyleOption(&opt);
QRect scr = style()->subControlRect(QStyle::CC_ComboBox, &opt, QStyle::SC_ComboBoxArrow, this);
if (!scr.contains(he->pos())) {
return false;
}
break;
}
default:
break;
}
return QComboBox::event(event);
}
bool DisplayFilterCombo::checkDisplayFilter()
{
DisplayFilterEdit *df_edit = qobject_cast<DisplayFilterEdit *>(lineEdit());
bool state = false;
if (df_edit) state = df_edit->checkFilter();
return state;
}
void DisplayFilterCombo::applyDisplayFilter()
{
DisplayFilterEdit *df_edit = qobject_cast<DisplayFilterEdit *>(lineEdit());
if (df_edit) df_edit->applyDisplayFilter();
}
void DisplayFilterCombo::setDisplayFilter(QString filter)
{
lineEdit()->setText(filter);
lineEdit()->setFocus();
}
void DisplayFilterCombo::updateMaxCount()
{
setMaxCount(prefs.gui_recent_df_entries_max);
}
extern "C" gboolean dfilter_combo_add_recent(const gchar *filter) {
if (!cur_display_filter_combo)
return FALSE;
// Adding an item to a QComboBox also sets its lineEdit. In our case
// that means we might trigger a temporary status message so we block
// the lineEdit's signals.
// Another approach would be to update QComboBox->model directly.
bool block_state = cur_display_filter_combo->lineEdit()->blockSignals(true);
cur_display_filter_combo->addItem(filter);
cur_display_filter_combo->clearEditText();
cur_display_filter_combo->lineEdit()->blockSignals(block_state);
return TRUE;
}
/*
* 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:
*/
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