Replaced QLayout::setMargin with QLayout::setContentsMargins

It's been already deprecated in Qt5, removed from Qt6 completely

Reference:
- https://doc.qt.io/qt-5/qlayout-obsolete.html

src/widgets/AttachedWindow.cpp

@@ -46,7 +46,7 @@ AttachedWindow::AttachedWindow(void *_target, int _yOffset)
     , yOffset_(_yOffset)
 {
     QLayout *layout = new QVBoxLayout(this);
-    layout->setMargin(0);
+    layout->setContentsMargins(0, 0, 0, 0);
     this->setLayout(layout);
 
     auto *split = new Split(this);

src/widgets/BaseWindow.cpp

@@ -150,7 +150,7 @@ void BaseWindow::init()
             {
                 QHBoxLayout *buttonLayout = this->ui_.titlebarBox =
                     new QHBoxLayout();
-                buttonLayout->setMargin(0);
+                buttonLayout->setContentsMargins(0, 0, 0, 0);
                 layout->addLayout(buttonLayout);
 
                 // title

src/widgets/StreamView.cpp

@@ -29,7 +29,7 @@ StreamView::StreamView(ChannelPtr channel, const QUrl &url)
     chat->setChannel(std::move(channel));
 
     this->layout()->setSpacing(0);
-    this->layout()->setMargin(0);
+    this->layout()->setContentsMargins(0, 0, 0, 0);
 }
 
 }  // namespace chatterino

src/widgets/Window.cpp

@@ -149,7 +149,7 @@ void Window::addLayout()
     this->getLayoutContainer()->setLayout(layout);
 
     // set margin
-    layout->setMargin(0);
+    layout->setContentsMargins(0, 0, 0, 0);
 
     this->notebook_->setAllowUserTabManagement(true);
     this->notebook_->setShowAddButton(true);

src/widgets/dialogs/EmotePopup.cpp

@@ -139,7 +139,7 @@ EmotePopup::EmotePopup(QWidget *parent)
 
     auto notebook = new Notebook(this);
     layout->addWidget(notebook);
-    layout->setMargin(0);
+    layout->setContentsMargins(0, 0, 0, 0);
 
     auto clicked = [this](const Link &link) {
         this->linkClicked.invoke(link);

src/widgets/dialogs/SettingsDialog.cpp

@@ -84,7 +84,7 @@ void SettingsDialog::initUi()
         .assign(&this->ui_.pageStack)
         .withoutMargin();
 
-    this->ui_.pageStack->setMargin(0);
+    this->ui_.pageStack->setContentsMargins(0, 0, 0, 0);
 
     outerBox->addSpacing(12);
 
@@ -154,7 +154,7 @@ void SettingsDialog::filterElements(const QString &text)
 
 void SettingsDialog::addTabs()
 {
-    this->ui_.tabContainer->setMargin(0);
+    this->ui_.tabContainer->setContentsMargins(0, 0, 0, 0);
     this->ui_.tabContainer->setSpacing(0);
 
     this->ui_.tabContainer->setContentsMargins(0, 20, 0, 20);

src/widgets/helper/EditableModelView.cpp

@@ -28,7 +28,7 @@ EditableModelView::EditableModelView(QAbstractTableModel *model, bool movable)
 
     // create layout
     QVBoxLayout *vbox = new QVBoxLayout(this);
-    vbox->setMargin(0);
+    vbox->setContentsMargins(0, 0, 0, 0);
 
     // create button layout
     QHBoxLayout *buttons = new QHBoxLayout(this);

src/widgets/helper/EffectLabel.cpp

@@ -13,7 +13,7 @@ EffectLabel::EffectLabel(BaseWidget *parent, int spacing)
 
     this->label_.setAlignment(Qt::AlignCenter);
 
-    this->hbox_.setMargin(0);
+    this->hbox_.setContentsMargins(0, 0, 0, 0);
     this->hbox_.addSpacing(spacing);
     this->hbox_.addWidget(&this->label_);
     this->hbox_.addSpacing(spacing);
@@ -29,7 +29,7 @@ EffectLabel2::EffectLabel2(BaseWidget *parent, int padding)
     //    this->label_.setAlignment(Qt::AlignCenter);
     this->label_.setCentered(true);
 
-    hbox->setMargin(0);
+    hbox->setContentsMargins(0, 0, 0, 0);
     //    hbox.addSpacing(spacing);
     hbox->addWidget(&this->label_);
     //    hbox.addSpacing(spacing);

src/widgets/helper/SearchPopup.cpp

@@ -116,13 +116,13 @@ void SearchPopup::initLayout()
     // VBOX
     {
         QVBoxLayout *layout1 = new QVBoxLayout(this);
-        layout1->setMargin(0);
+        layout1->setContentsMargins(0, 0, 0, 0);
         layout1->setSpacing(0);
 
         // HBOX
         {
             QHBoxLayout *layout2 = new QHBoxLayout(this);
-            layout2->setMargin(8);
+            layout2->setContentsMargins(8, 8, 8, 8);
             layout2->setSpacing(8);
 
             // SEARCH INPUT

src/widgets/splits/Split.cpp

@@ -90,7 +90,7 @@ Split::Split(QWidget *parent)
     this->view_->setFocusPolicy(Qt::FocusPolicy::NoFocus);
 
     this->vbox_->setSpacing(0);
-    this->vbox_->setMargin(1);
+    this->vbox_->setContentsMargins(1, 1, 1, 1);
 
     this->vbox_->addWidget(this->header_);
     this->vbox_->addWidget(this->view_, 1);

src/widgets/splits/SplitHeader.cpp

@@ -325,7 +325,7 @@ void SplitHeader::initializeLayout()
         },
         this->managedConnections_);
 
-    layout->setMargin(0);
+    layout->setContentsMargins(0, 0, 0, 0);
     layout->setSpacing(0);
     this->setLayout(layout);
 

src/widgets/splits/SplitInput.cpp

@@ -144,8 +144,8 @@ void SplitInput::themeChangedEvent()
     this->ui_.textEdit->setPalette(placeholderPalette);
     this->ui_.textEdit->setStyleSheet(this->theme->splits.input.styleSheet);
 
-    this->ui_.hbox->setMargin(
-        int((this->theme->isLightTheme() ? 4 : 2) * this->scale()));
+    int scale = (this->theme->isLightTheme() ? 4 : 2) * this->scale();
+    this->ui_.hbox->setContentsMargins(scale, scale, scale, scale);
 
     this->ui_.emoteButton->getLabel().setStyleSheet("color: #000");
 }

src/widgets/splits/SplitOverlay.cpp

@@ -22,7 +22,7 @@ SplitOverlay::SplitOverlay(Split *parent)
 {
     QGridLayout *layout = new QGridLayout(this);
     this->layout_ = layout;
-    layout->setMargin(1);
+    layout->setContentsMargins(1, 1, 1, 1);
     layout->setSpacing(1);
 
     layout->setRowStretch(1, 1);