Return correct hit-test values for title bar buttons on Windows (#4994)

Co-authored-by: Rasmus Karlsson <rasmus.karlsson@pajlada.com>
2023-12-03 14:41:33 +01:00
parent 584a7c86fc
commit 812186dc4c
8 changed files with 381 additions and 38 deletions
@@ -0,0 +1,116 @@
+#include "widgets/helper/TitlebarButtons.hpp"
+
+#ifdef USEWINSDK
+
+#    include "widgets/helper/TitlebarButton.hpp"
+
+#    include <Windows.h>
+
+#    include <cassert>
+
+namespace chatterino {
+
+TitleBarButtons::TitleBarButtons(QWidget *window, TitleBarButton *minButton,
+                                 TitleBarButton *maxButton,
+                                 TitleBarButton *closeButton)
+    : QObject(window)
+    , window_(window)
+    , minButton_(minButton)
+    , maxButton_(maxButton)
+    , closeButton_(closeButton)
+{
+}
+
+void TitleBarButtons::hover(size_t ht, QPoint at)
+{
+    TitleBarButton *hovered{};
+    TitleBarButton *other1{};
+    TitleBarButton *other2{};
+    switch (ht)
+    {
+        case HTMAXBUTTON:
+            hovered = this->maxButton_;
+            other1 = this->minButton_;
+            other2 = this->closeButton_;
+            break;
+        case HTMINBUTTON:
+            hovered = this->minButton_;
+            other1 = this->maxButton_;
+            other2 = this->closeButton_;
+            break;
+        case HTCLOSE:
+            hovered = this->closeButton_;
+            other1 = this->minButton_;
+            other2 = this->maxButton_;
+            break;
+        default:
+            assert(false && "TitleBarButtons::hover precondition violated");
+            return;
+    }
+    hovered->ncEnter();
+    hovered->ncMove(hovered->mapFromGlobal(at));
+    other1->ncLeave();
+    other2->ncLeave();
+}
+
+void TitleBarButtons::leave()
+{
+    this->minButton_->ncLeave();
+    this->maxButton_->ncLeave();
+    this->closeButton_->ncLeave();
+}
+
+void TitleBarButtons::mousePress(size_t ht, QPoint at)
+{
+    auto *button = this->buttonForHt(ht);
+    button->ncMousePress(button->mapFromGlobal(at));
+}
+
+void TitleBarButtons::mouseRelease(size_t ht, QPoint at)
+{
+    auto *button = this->buttonForHt(ht);
+    button->ncMouseRelease(button->mapFromGlobal(at));
+}
+
+void TitleBarButtons::updateMaxButton()
+{
+    this->maxButton_->setButtonStyle(
+        this->window_->windowState().testFlag(Qt::WindowMaximized)
+            ? TitleBarButtonStyle::Unmaximize
+            : TitleBarButtonStyle::Maximize);
+}
+
+void TitleBarButtons::setSmallSize()
+{
+    this->minButton_->setScaleIndependantSize(30, 30);
+    this->maxButton_->setScaleIndependantSize(30, 30);
+    this->closeButton_->setScaleIndependantSize(30, 30);
+}
+
+void TitleBarButtons::setRegularSize()
+{
+    this->minButton_->setScaleIndependantSize(46, 30);
+    this->maxButton_->setScaleIndependantSize(46, 30);
+    this->closeButton_->setScaleIndependantSize(46, 30);
+}
+
+TitleBarButton *TitleBarButtons::buttonForHt(size_t ht) const
+{
+    switch (ht)
+    {
+        case HTMAXBUTTON:
+            return this->maxButton_;
+        case HTMINBUTTON:
+            return this->minButton_;
+        case HTCLOSE:
+            return this->closeButton_;
+        default:
+            assert(false &&
+                   "TitleBarButtons::buttonForHt precondition violated");
+            return nullptr;
+    }
+}
+
+}  // namespace chatterino
+
+#endif