Add tooltip display methods

scwx-qt/source/scwx/qt/util/tooltip.cpp

@@ -1,8 +1,13 @@
 #include <scwx/qt/util/tooltip.hpp>
+#include <scwx/qt/manager/settings_manager.hpp>
 #include <scwx/qt/settings/text_settings.hpp>
 #include <scwx/qt/util/imgui.hpp>
 
 #include <TextFlow.hpp>
+#include <QGuiApplication>
+#include <QLabel>
+#include <QScreen>
+#include <QToolTip>
 
 namespace scwx
 {
@@ -15,8 +20,42 @@ namespace tooltip
 
 static const std::string logPrefix_ = "scwx::qt::util::tooltip";
 
-void Show(const std::string& text, const QPointF& /* mouseGlobalPos */)
+enum class TooltipMethod
 {
+   ImGui,
+   QToolTip,
+   QLabel
+};
+
+static TooltipMethod tooltipMethod_ = TooltipMethod::ImGui;
+
+static std::unique_ptr<QLabel> labelTooltip_ = nullptr;
+
+void Initialize()
+{
+   static bool initialized = false;
+
+   if (initialized)
+   {
+      return;
+   }
+
+   labelTooltip_ = std::make_unique<QLabel>();
+   labelTooltip_->setWindowFlag(Qt::ToolTip);
+   labelTooltip_->setMargin(6);
+   labelTooltip_->setAttribute(Qt::WidgetAttribute::WA_TranslucentBackground);
+   labelTooltip_->setStyleSheet(
+      "background-color: rgba(15, 15, 15, 191);"
+      "border: 1px solid rgba(110, 110, 128, 128);"
+      "color: rgba(255, 255, 255, 204);");
+
+   initialized = true;
+}
+
+void Show(const std::string& text, const QPointF& mouseGlobalPos)
+{
+   Initialize();
+
    std::size_t textWidth = static_cast<std::size_t>(
       settings::TextSettings::Instance().hover_text_wrap().GetValue());
 
@@ -31,10 +70,108 @@ void Show(const std::string& text, const QPointF& /* mouseGlobalPos */)
    // when not wrapping)
    const std::string& displayText = (textWidth > 0) ? wrappedText : text;
 
-   util::ImGui::Instance().DrawTooltip(displayText);
+   if (tooltipMethod_ == TooltipMethod::ImGui)
+   {
+      util::ImGui::Instance().DrawTooltip(displayText);
+   }
+   else if (tooltipMethod_ == TooltipMethod::QToolTip)
+   {
+      static std::size_t id = 0;
+      QToolTip::showText(
+         mouseGlobalPos.toPoint(),
+         QString("<span id='%1' style='font-family:\"%2\"'>%3</span>")
+            .arg(++id)
+            .arg("Inconsolata")
+            .arg(QString::fromStdString(displayText).replace("\n", "<br/>")),
+         nullptr,
+         {},
+         std::numeric_limits<int>::max());
+   }
+   else if (tooltipMethod_ == TooltipMethod::QLabel)
+   {
+      // Get monospace font size
+      std::size_t fontSize = 16;
+      auto        fontSizes =
+         manager::SettingsManager::general_settings().font_sizes().GetValue();
+      if (fontSizes.size() > 1)
+      {
+         fontSize = fontSizes[1];
+      }
+      else if (fontSizes.size() > 0)
+      {
+         fontSize = fontSizes[0];
+      }
+
+      // Configure the label
+      labelTooltip_->setFont(
+         QFont("Inconsolata", static_cast<int>(std::round(fontSize * 0.72))));
+      labelTooltip_->setText(QString::fromStdString(displayText));
+
+      // Get the screen the label will be displayed on
+      QScreen* screen = QGuiApplication::screenAt(mouseGlobalPos.toPoint());
+      if (screen == nullptr)
+      {
+         screen = QGuiApplication::primaryScreen();
+      }
+
+      // Default offset for label
+      const QPoint offset {2, 24};
+
+      // Get starting label position (below and to the right)
+      QPoint p = mouseGlobalPos.toPoint() + offset;
+
+      // Adjust position if necessary
+      const QRect r = screen->geometry();
+      if (p.x() + labelTooltip_->width() > r.x() + r.width())
+      {
+         // If the label extends beyond the right of the screen, move it left
+         p.rx() -= 4 + labelTooltip_->width();
+      }
+      if (p.y() + labelTooltip_->height() > r.y() + r.height())
+      {
+         // If the label extends beyond the bottom of the screen, move it up
+         p.ry() -= 24 + labelTooltip_->height();
+      }
+
+      // Clamp the label within the screen
+      if (p.y() < r.y())
+      {
+         p.setY(r.y());
+      }
+      if (p.x() + labelTooltip_->width() > r.x() + r.width())
+      {
+         p.setX(r.x() + r.width() - labelTooltip_->width());
+      }
+      if (p.x() < r.x())
+      {
+         p.setX(r.x());
+      }
+      if (p.y() + labelTooltip_->height() > r.y() + r.height())
+      {
+         p.setY(r.y() + r.height() - labelTooltip_->height());
+      }
+
+      // Move the label to the calculated offset
+      labelTooltip_->move(p);
+
+      // Show the label
+      if (labelTooltip_->isHidden())
+      {
+         labelTooltip_->show();
+      }
+   }
 }
 
-void Hide() {}
+void Hide()
+{
+   Initialize();
+
+   // TooltipMethod::QToolTip
+   QToolTip::hideText();
+
+   // TooltipMethod::QLabel
+   labelTooltip_->hide();
+}
 
 } // namespace tooltip
 } // namespace util