From f602849b39ef0e300030d1dafd7116931c6ff62e Mon Sep 17 00:00:00 2001
From: David Aguilar <davvid@gmail.com>
Date: Wed, 6 Mar 2024 21:18:32 -0800
Subject: [PATCH] Set a default size on first launch

When `~/.config/nvim-qt/window-geometry.conf` does not exist then
restoreGeometry() will initialize a window that is tiny and must be
resized in order to be usable in some environments.

Resize the window to half the screen when launched for the first time.
Do not restore window state when it is invalid or missing.
---
 src/gui/mainwindow.cpp | 28 +++++++++++++++++++++++++---
 1 file changed, 25 insertions(+), 3 deletions(-)

diff --git a/src/gui/mainwindow.cpp b/src/gui/mainwindow.cpp
index 5e62e6171..c6edce819 100644
--- a/src/gui/mainwindow.cpp
+++ b/src/gui/mainwindow.cpp
@@ -1,8 +1,10 @@
 #include "mainwindow.h"
 
+#include <QApplication>
 #include <QCloseEvent>
 #include <QEventLoop>
 #include <QLayout>
+#include <QScreen>
 #include <QSettings>
 #include <QStyleFactory>
 #include <QToolBar>
@@ -329,12 +331,32 @@ void MainWindow::restoreWindowGeometry()
 	qRegisterMetaTypeStreamOperators<QList<int>>("QList<int>");
 #endif
 
-	QSettings settings("nvim-qt", "window-geometry");
+	const QSettings settings("nvim-qt", "window-geometry");
 	if (!settings.value("restore_window_geometry", true).toBool()) {
 		return;
 	}
-	restoreGeometry(settings.value("window_geometry").toByteArray());
-	restoreState(settings.value("window_state").toByteArray());
+	const QVariant geometry{ settings.value("window_geometry") };
+	if (geometry.isValid()) {
+		restoreGeometry(geometry.toByteArray());
+	}
+	else {
+		const QPoint local_position{ width() / 2, 0 };
+		const QPoint global_position = mapToGlobal(local_position);
+		const QScreen* screen{ qApp->screenAt(global_position) };
+		if (screen) {
+			const QRect geometry{ screen->availableGeometry() };
+			if (screen->orientation() == Qt::LandscapeOrientation) {
+				resize(geometry.width() / 2, geometry.height());
+			}
+			else {
+				resize(geometry.width(), geometry.height() / 2);
+			}
+		}
+	}
+	QVariant state{ settings.value("window_state") };
+	if (state.isValid()) {
+		restoreState(state.toByteArray());
+	}
 }
 
 void MainWindow::setGuiAdaptiveColorEnabled(bool isEnabled)