gui: Makes the timing report settings window resizable

Signed-off-by: LucasYuki <[email protected]>

Author: LucasYuki

src/gui/src/staGui.cpp

@@ -1130,7 +1130,9 @@ TimingControlsDialog::TimingControlsDialog(QWidget* parent)
       expand_clk_(new QCheckBox(this)),
       from_(new PinSetWidget(false, this)),
       thru_({}),
-      to_(new PinSetWidget(false, this))
+      to_(new PinSetWidget(false, this)),
+      scroll_(new QScrollArea(this)),
+      content_widget_(new QWidget)
 {
   setWindowTitle("Timing Controls");
 
@@ -1149,8 +1151,21 @@ TimingControlsDialog::TimingControlsDialog(QWidget* parent)
   setUnconstrained(false);
   layout_->addRow("Unconstrained:", unconstrained_);
   layout_->addRow("One path per endpoint:", one_path_per_endpoint_);
-
-  setLayout(layout_);
+  content_widget_->setLayout(layout_);
+
+  scroll_->setLayout(new QVBoxLayout);
+  scroll_->setWidget(content_widget_);
+  scroll_->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Expanding);
+  scroll_->adjustSize();
+  scroll_->setMinimumWidth(
+      scroll_->size().width()
+      + qApp->style()->pixelMetric(QStyle::PM_ScrollBarExtent));
+
+  setLayout(new QVBoxLayout);
+  layout()->addWidget(scroll_);
+  setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Expanding);
+  setMaximumWidth(layout()->sizeHint().width());
+  adjustSize();
 
   connect(path_count_spin_box_,
           QOverload<int>::of(&QSpinBox::valueChanged),
@@ -1182,6 +1197,24 @@ TimingControlsDialog::TimingControlsDialog(QWidget* parent)
   sta_->setIncludeCapturePaths(true);
 }
 
+QSize TimingControlsDialog::sizeHint() const
+{
+  int width = minimumWidth();
+  int top = 0, bottom = 0;
+  if (layout())
+  {
+    layout()->getContentsMargins(nullptr, &top, nullptr, &bottom);
+  }
+  int top2 = 0, bottom2 = 0;
+  if (scroll_->layout())
+  {
+    scroll_->layout()->getContentsMargins(nullptr, &top2, nullptr, &bottom2);
+  }
+
+  int height = content_widget_->size().height()+top+bottom+top2+bottom2;
+  return QSize(width, height);
+}
+
 void TimingControlsDialog::setupPinRow(const QString& label,
                                        PinSetWidget* row,
                                        int row_index)

src/gui/src/staGui.h

@@ -14,6 +14,7 @@
 #include <QHBoxLayout>
 #include <QHash>
 #include <QListWidget>
+#include <QScrollArea>
 #include <QSpinBox>
 #include <map>
 #include <memory>
@@ -413,6 +414,8 @@ class TimingControlsDialog : public QDialog
   sta::Corner* getCorner() const { return sta_->getCorner(); }
   void setCorner(sta::Corner* corner) { sta_->setCorner(corner); }
 
+  QSize sizeHint() const override;
+
  signals:
   void inspect(const Selected& selected);
   void expandClock(bool expand);
@@ -440,6 +443,8 @@ class TimingControlsDialog : public QDialog
   std::vector<PinSetWidget*> thru_;
   PinSetWidget* to_;
   QHash<QString, sta::Clock*> qstring_to_clk_;
+  QScrollArea* scroll_;
+  QWidget* content_widget_;
 
   static constexpr int kThruStartRow = 4;