Rename SearchField

src/widgets/searchfield_qt.cpp

@@ -0,0 +1,179 @@
+/*
+Copyright (C) 2011 by Mike McQuaid
+Copyright (C) 2018-2024 by Jonas Kvinge <jonas@jkvinge.net>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
+#include "searchfield.h"
+#include "searchfield_qt_private.h"
+
+#include <QWidget>
+#include <QApplication>
+#include <QString>
+#include <QIcon>
+#include <QLineEdit>
+#include <QPushButton>
+#include <QVBoxLayout>
+#include <QStyle>
+#include <QSize>
+#include <QEvent>
+#include <QResizeEvent>
+
+#include "core/iconloader.h"
+
+SearchField::SearchField(QWidget *parent) : QWidget(parent) {
+
+  QLineEdit *lineEdit = new QLineEdit(this);
+  QObject::connect(lineEdit, &QLineEdit::textChanged, this, &SearchField::textChanged);
+  QObject::connect(lineEdit, &QLineEdit::editingFinished, this, &SearchField::editingFinished);
+  QObject::connect(lineEdit, &QLineEdit::returnPressed, this, &SearchField::returnPressed);
+  QObject::connect(lineEdit, &QLineEdit::textChanged, this, &SearchField::setText);
+
+  QPushButton *clearbutton = new QPushButton(this);
+  QIcon clearIcon(IconLoader::Load(QStringLiteral("edit-clear-locationbar-ltr")));
+
+  clearbutton->setIcon(clearIcon);
+  clearbutton->setIconSize(QSize(20, 20));
+  clearbutton->setStyleSheet(QStringLiteral("border: none; padding: 2px;"));
+  clearbutton->resize(clearbutton->sizeHint());
+
+  QObject::connect(clearbutton, &QPushButton::clicked, this, &SearchField::clear);
+
+  pimpl = new SearchFieldPrivate(this, lineEdit, clearbutton);
+
+  const int frame_width = lineEdit->style()->pixelMetric(QStyle::PM_DefaultFrameWidth);
+
+  lineEdit->setStyleSheet(QStringLiteral("QLineEdit { padding-left: %1px; } ").arg(clearbutton->width()));
+  const int width = frame_width + qMax(lineEdit->minimumSizeHint().width(), pimpl->clearButtonPaddedWidth());
+  const int height = frame_width + qMax(lineEdit->minimumSizeHint().height(), pimpl->clearButtonPaddedHeight());
+  lineEdit->setMinimumSize(width, height);
+
+  QVBoxLayout *layout = new QVBoxLayout(this);
+  layout->setContentsMargins(0, 0, 0, 0);
+  layout->addWidget(lineEdit);
+
+  lineEdit->installEventFilter(this);
+
+}
+
+void SearchField::setIconSize(const int iconsize) {
+
+  pimpl->clearbutton_->setIconSize(QSize(iconsize, iconsize));
+  pimpl->clearbutton_->resize(pimpl->clearbutton_->sizeHint());
+
+  pimpl->lineedit_->setStyleSheet(QStringLiteral("QLineEdit { padding-left: %1px; } ").arg(pimpl->clearbutton_->width()));
+  const int frame_width = pimpl->lineedit_->style()->pixelMetric(QStyle::PM_DefaultFrameWidth);
+  const int width = frame_width + qMax(pimpl->lineedit_->minimumSizeHint().width(), pimpl->clearButtonPaddedWidth());
+  const int height = frame_width + qMax(pimpl->lineedit_->minimumSizeHint().height(), pimpl->clearButtonPaddedHeight());
+  pimpl->lineedit_->setMinimumSize(width, height);
+
+}
+
+void SearchField::setText(const QString &new_text) {
+
+  Q_ASSERT(pimpl && pimpl->clearbutton_ && pimpl->lineedit_);
+  if (!(pimpl && pimpl->clearbutton_ && pimpl->lineedit_)) return;
+  if (new_text != text()) pimpl->lineedit_->setText(new_text);
+
+}
+
+void SearchField::setPlaceholderText(const QString &text) {
+
+  Q_ASSERT(pimpl && pimpl->lineedit_);
+  if (!(pimpl && pimpl->lineedit_)) return;
+  pimpl->lineedit_->setPlaceholderText(text);
+
+}
+
+QString SearchField::placeholderText() const {
+  return pimpl->lineedit_->placeholderText();
+}
+
+bool SearchField::hasFocus() const {
+  Q_ASSERT(pimpl && pimpl->lineedit_);
+  return pimpl && pimpl->lineedit_ && pimpl->lineedit_->hasFocus();
+}
+
+void SearchField::setFocus(Qt::FocusReason reason) {
+  Q_ASSERT(pimpl && pimpl->lineedit_);
+  if (pimpl && pimpl->lineedit_) pimpl->lineedit_->setFocus(reason);
+}
+
+void SearchField::setFocus() {
+  setFocus(Qt::OtherFocusReason);
+}
+
+void SearchField::clear() {
+
+  Q_ASSERT(pimpl && pimpl->lineedit_);
+
+  if (!(pimpl && pimpl->lineedit_)) return;
+  pimpl->lineedit_->clear();
+
+}
+
+void SearchField::selectAll() {
+
+  Q_ASSERT(pimpl && pimpl->lineedit_);
+
+  if (!(pimpl && pimpl->lineedit_)) return;
+  pimpl->lineedit_->selectAll();
+
+}
+
+QString SearchField::text() const {
+
+  Q_ASSERT(pimpl && pimpl->lineedit_);
+
+  if (!(pimpl && pimpl->lineedit_)) return QString();
+  return pimpl->lineedit_->text();
+
+}
+
+void SearchField::resizeEvent(QResizeEvent *resizeEvent) {
+
+  Q_ASSERT(pimpl && pimpl->clearbutton_ && pimpl->lineedit_);
+  if (!(pimpl && pimpl->clearbutton_ && pimpl->lineedit_)) return;
+
+  QWidget::resizeEvent(resizeEvent);
+  const int x = pimpl->lineEditFrameWidth();
+  const int y = (height() - pimpl->clearbutton_->height()) / 2;
+  pimpl->clearbutton_->move(x, y);
+
+}
+
+bool SearchField::eventFilter(QObject *o, QEvent *e) {
+
+  if (pimpl && pimpl->lineedit_ && o == pimpl->lineedit_) {
+    // Forward some lineEdit events to SearchField (only those we need for
+    // now, but some might be added later if needed)
+    switch (e->type()) {
+      case QEvent::FocusIn:
+      case QEvent::FocusOut:
+        QApplication::sendEvent(this, e);
+        break;
+      default:
+        break;
+    }
+  }
+
+  return QWidget::eventFilter(o, e);
+
+}