added new filterwidget, will eventually get the operators functionality from the mod/pluging lists

1 files changed, 88 insertions, 0 deletions

diff --git a/src/filterwidget.cpp b/src/filterwidget.cpp
new file mode 100644
index 00000000..39324bc6
--- /dev/null
+++ b/src/filterwidget.cpp
@@ -0,0 +1,88 @@
+#include "filterwidget.h"
+#include "eventfilter.h"
+
+FilterWidget::FilterWidget()
+  : m_edit(nullptr), m_clear(nullptr), m_buddy(nullptr)
+{
+}
+
+void FilterWidget::set(QLineEdit* edit)
+{
+  if (m_clear) {
+    delete m_clear;
+    m_clear = nullptr;
+  }
+
+  m_edit = edit;
+  if (!m_edit) {
+    return;
+  }
+
+  createClear();
+  hookEvents();
+}
+
+void FilterWidget::clear()
+{
+  if (!m_edit) {
+    return;
+  }
+
+  m_edit->clear();
+}
+
+void FilterWidget::createClear()
+{
+  m_clear = new QToolButton(m_edit);
+
+  QPixmap pixmap(":/MO/gui/edit_clear");
+  m_clear->setIcon(QIcon(pixmap));
+  m_clear->setIconSize(pixmap.size());
+  m_clear->setCursor(Qt::ArrowCursor);
+  m_clear->setStyleSheet("QToolButton { border: none; padding: 0px; }");
+  m_clear->hide();
+
+  QObject::connect(m_clear, &QToolButton::clicked, [&]{ clear(); });
+  QObject::connect(m_edit, &QLineEdit::textChanged, [&]{ onTextChanged(); });
+
+  repositionClearButton();
+}
+
+void FilterWidget::hookEvents()
+{
+  auto* f = new EventFilter(m_edit, [&](auto* w, auto* e) {
+    if (e->type() == QEvent::Resize) {
+      onResized();
+    }
+
+    return false;
+  });
+
+  m_edit->installEventFilter(f);
+}
+
+void FilterWidget::onTextChanged()
+{
+  m_clear->setVisible(!m_edit->text().isEmpty());
+}
+
+void FilterWidget::onResized()
+{
+  repositionClearButton();
+}
+
+void FilterWidget::repositionClearButton()
+{
+  if (!m_clear) {
+    return;
+  }
+
+  const QSize sz = m_clear->sizeHint();
+  const int frame = m_edit->style()->pixelMetric(QStyle::PM_DefaultFrameWidth);
+  const auto r = m_edit->rect();
+
+  const auto x = r.right() - frame - sz.width();
+  const auto y = (r.bottom() + 1 - sz.height()) / 2;
+
+  m_clear->move(x, y);
+}