forked from osmocom/wireshark
342 lines
10 KiB
C++
342 lines
10 KiB
C++
/* display_filter_edit.cpp
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include <glib.h>
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#include <epan/dfilter/dfilter.h>
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#include "display_filter_edit.h"
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#include "syntax_line_edit.h"
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#include <QPainter>
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#include <QStyleOptionFrame>
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#include "ui/utf8_entities.h"
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// platform
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// osx
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// win
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// default
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#if defined(Q_OS_MAC) && 0
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// http://developer.apple.com/library/mac/#documentation/Cocoa/Reference/ApplicationKit/Classes/NSImage_Class/Reference/Reference.html
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// http://www.virtualbox.org/svn/vbox/trunk/src/VBox/Frontends/VirtualBox/src/platform/darwin/UICocoaSpecialControls.mm
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class UIMiniCancelButton: public QAbstractButton
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{
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Q_OBJECT;
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public:
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UIMiniCancelButton(QWidget *pParent = 0);
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void setText(const QString &strText) { m_pButton->setText(strText); }
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void setToolTip(const QString &strTip) { m_pButton->setToolTip(strTip); }
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void removeBorder() {}
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protected:
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void paintEvent(QPaintEvent * /* pEvent */) {}
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void resizeEvent(QResizeEvent *pEvent);
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private:
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UICocoaButton *m_pButton;
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};
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UIMiniCancelButton::UIMiniCancelButton(QWidget *pParent /* = 0 */)
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: QAbstractButton(pParent)
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{
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setShortcut(QKeySequence(Qt::Key_Escape));
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m_pButton = new UICocoaButton(UICocoaButton::CancelButton, this);
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connect(m_pButton, SIGNAL(clicked()),
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this, SIGNAL(clicked()));
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setFixedSize(m_pButton->size());
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}
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#endif
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#ifdef __APPLE__
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#define DEFAULT_MODIFIER QChar(0x2318) // PLACE OF INTEREST SIGN
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#else
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#define DEFAULT_MODIFIER "Ctrl-"
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#endif
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// XXX - We need simplified (button- and dropdown-free) versions for use in dialogs and field-only checking.
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DisplayFilterEdit::DisplayFilterEdit(QWidget *parent, bool plain) :
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SyntaxLineEdit(parent),
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plain_(plain),
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apply_button_(NULL)
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{
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setAccessibleName(tr("Display filter entry"));
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if (plain_) {
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empty_filter_message_ = QString(tr("Enter a display filter %1")).arg(UTF8_HORIZONTAL_ELLIPSIS);
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} else {
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empty_filter_message_ = QString(tr("Apply a display filter %1 <%2/>")).arg(UTF8_HORIZONTAL_ELLIPSIS)
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.arg(DEFAULT_MODIFIER);
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}
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// DFCombo
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// Bookmark (star)
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// DispalyFilterEdit
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// Clear button
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// Apply (right arrow) + Cancel (x) + Reload (arrowed circle)
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// Combo drop-down
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// XXX - Move bookmark and apply buttons to the toolbar a la Firefox, Chrome & Safari?
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// XXX - Use native buttons on OS X?
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bookmark_button_ = new QToolButton(this);
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bookmark_button_->setEnabled(false);
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bookmark_button_->setCursor(Qt::ArrowCursor);
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bookmark_button_->setStyleSheet(QString(
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"QToolButton { /* all types of tool button */"
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" border 0 0 0 0;"
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#ifdef Q_OS_MAC
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" border-right: %1px solid gray;"
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#else
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" border-right: %1px solid palette(shadow);"
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#endif
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" border-top-left-radius: 3px;"
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" border-bottom-left-radius: 3px;"
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" padding-left: 1px;"
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" image: url(:/dfilter/dfilter_bookmark_normal.png) center;"
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"}"
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"QToolButton:hover {"
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" image: url(:/dfilter/dfilter_bookmark_hover.png) center;"
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"}"
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"QToolButton:pressed {"
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" image: url(:/dfilter/dfilter_bookmark_pressed.png) center;"
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"}"
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"QToolButton:disabled {"
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" image: url(:/dfilter/dfilter_bookmark_disabled.png) center;"
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"}"
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).arg(plain_ ? 0 : 1)
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);
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#ifndef QT_NO_TOOLTIP
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bookmark_button_->setToolTip(tr("Bookmark this filter string"));
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#endif // QT_NO_TOOLTIP
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connect(bookmark_button_, SIGNAL(clicked()), this, SLOT(bookmarkClicked()));
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clear_button_ = new QToolButton(this);
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clear_button_->setCursor(Qt::ArrowCursor);
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clear_button_->setStyleSheet(
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"QToolButton {"
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" image: url(:/dfilter/dfilter_erase_normal.png) center;"
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" border: none;"
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" width: 16px;"
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"}"
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"QToolButton:hover {"
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" image: url(:/dfilter/dfilter_erase_active.png) center;"
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"}"
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"QToolButton:pressed {"
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" image: url(:/dfilter/dfilter_erase_selected.png) center;"
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"}"
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);
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#ifndef QT_NO_TOOLTIP
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clear_button_->setToolTip(tr("Clear the filter string and update the display"));
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#endif // QT_NO_TOOLTIP
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clear_button_->hide();
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connect(clear_button_, SIGNAL(clicked()), this, SLOT(clearFilter()));
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connect(this, SIGNAL(textChanged(const QString&)), this, SLOT(checkFilter(const QString&)));
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if (!plain_) {
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apply_button_ = new QToolButton(this);
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apply_button_->setCursor(Qt::ArrowCursor);
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apply_button_->setEnabled(false);
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apply_button_->setStyleSheet(
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"QToolButton { /* all types of tool button */"
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" border 0 0 0 0;"
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" border-top-right-radius: 3px;"
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" border-bottom-right-radius: 3px;"
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" padding-right: 1px;"
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" image: url(:/dfilter/dfilter_apply_normal.png) center;"
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"}"
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"QToolButton:hover {"
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" image: url(:/dfilter/dfilter_apply_hover.png) center;"
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"}"
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"QToolButton:pressed {"
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" image: url(:/dfilter/dfilter_apply_pressed.png) center;"
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"}"
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"QToolButton:disabled {"
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" image: url(:/dfilter/dfilter_apply_disabled.png) center;"
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"}"
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);
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#ifndef QT_NO_TOOLTIP
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apply_button_->setToolTip(tr("Apply this filter string to the display"));
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#endif // QT_NO_TOOLTIP
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connect(apply_button_, SIGNAL(clicked()), this, SLOT(applyDisplayFilter()));
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connect(this, SIGNAL(returnPressed()), this, SLOT(applyDisplayFilter()));
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}
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int frameWidth = style()->pixelMetric(QStyle::PM_DefaultFrameWidth);
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QSize bksz = bookmark_button_->sizeHint();
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QSize cbsz = clear_button_->sizeHint();
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QSize apsz;
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if (apply_button_) {
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apsz = apply_button_->sizeHint();
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} else {
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apsz.setHeight(0); apsz.setWidth(0);
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}
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setStyleSheet(QString(
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"DisplayFilterEdit {"
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" padding-left: %1px;"
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" margin-left: %2px;"
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" margin-right: %3px;"
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"}"
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)
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.arg(frameWidth + 1)
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.arg(bksz.width())
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.arg(cbsz.width() + apsz.width() + frameWidth + 1)
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);
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}
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void DisplayFilterEdit::paintEvent(QPaintEvent *evt) {
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SyntaxLineEdit::paintEvent(evt);
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// http://wiki.forum.nokia.com/index.php/Custom_QLineEdit
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if (text().isEmpty() && ! this->hasFocus()) {
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QPainter p(this);
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QFont f = font();
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f.setItalic(true);
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p.setFont(f);
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QColor color(palette().color(foregroundRole()));
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color.setAlphaF(0.5);
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p.setPen(color);
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QStyleOptionFrame opt;
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initStyleOption(&opt);
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QRect cr = style()->subElementRect(QStyle::SE_LineEditContents, &opt, this);
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cr.setLeft(cr.left() + 2);
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cr.setRight(cr.right() - 2);
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p.drawText(cr, Qt::AlignLeft|Qt::AlignVCenter, empty_filter_message_);
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}
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// else check filter syntax and set the background accordingly
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// XXX - Should we add little warning/error icons as well?
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}
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void DisplayFilterEdit::resizeEvent(QResizeEvent *)
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{
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QSize cbsz = clear_button_->sizeHint();
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QSize apsz;
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if (apply_button_) {
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apsz = apply_button_->sizeHint();
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} else {
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apsz.setHeight(0); apsz.setWidth(0);
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}
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int frameWidth = style()->pixelMetric(QStyle::PM_DefaultFrameWidth);
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clear_button_->move(contentsRect().right() - frameWidth - cbsz.width() - apsz.width(),
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contentsRect().top());
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clear_button_->setMaximumHeight(contentsRect().height());
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if (apply_button_) {
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apply_button_->move(contentsRect().right() - frameWidth - apsz.width(),
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contentsRect().top());
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apply_button_->setMaximumHeight(contentsRect().height());
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}
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bookmark_button_->setMaximumHeight(contentsRect().height());
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}
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void DisplayFilterEdit::checkFilter(const QString& text)
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{
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clear_button_->setVisible(!text.isEmpty());
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popFilterSyntaxStatus();
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checkDisplayFilter(text);
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switch (syntaxState()) {
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case Deprecated:
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{
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/*
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* We're being lazy and only printing the first "problem" token.
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* Would it be better to print all of them?
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*/
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QString deprecatedMsg(tr("\"%1\" may have unexpected results (see the User's Guide)")
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.arg(deprecatedToken()));
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emit pushFilterSyntaxWarning(deprecatedMsg);
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break;
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}
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case Invalid:
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{
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QString invalidMsg(tr("Invalid filter"));
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if (dfilter_error_msg) {
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invalidMsg.append(QString().sprintf(": %s", dfilter_error_msg));
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}
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emit pushFilterSyntaxStatus(invalidMsg);
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break;
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}
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default:
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break;
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}
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bookmark_button_->setEnabled(syntaxState() == Valid || syntaxState() == Deprecated);
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if (apply_button_) {
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apply_button_->setEnabled(SyntaxState() != Invalid);
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}
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}
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void DisplayFilterEdit::bookmarkClicked()
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{
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emit addBookmark(text());
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}
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void DisplayFilterEdit::clearFilter()
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{
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clear();
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QString new_filter;
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emit filterPackets(new_filter, true);
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}
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void DisplayFilterEdit::applyDisplayFilter()
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{
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if (syntaxState() != Valid && syntaxState() != Empty) {
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return;
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}
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QString new_filter = text();
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emit filterPackets(new_filter, true);
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}
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void DisplayFilterEdit::displayFilterSuccess(bool success)
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{
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apply_button_->setEnabled(!success);
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}
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/*
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* Editor modelines
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*
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* Local Variables:
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* c-basic-offset: 4
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* tab-width: 8
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* indent-tabs-mode: nil
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* End:
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*
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* ex: set shiftwidth=4 tabstop=8 expandtab:
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* :indentSize=4:tabSize=8:noTabs=true:
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*/
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