Qt: Fix cut off tiles and alignment issues in tile viewer

CHANGES

@@ -14,6 +14,7 @@ Bugfixes:
  - Qt: Fix changing resolution of software renderer
  - Qt: Fix setting overrides
  - GBA Cheats: Fix GameShark ROM patches
+ - Qt: Fix cut off tiles and alignment issues in tile viewer
 Misc:
  - SDL: Remove scancode key input
  - GBA Video: Clean up unused timers

src/platform/qt/TilePainter.cpp

@@ -27,7 +27,9 @@ void TilePainter::paintEvent(QPaintEvent* event) {
 }
 
 void TilePainter::resizeEvent(QResizeEvent* event) {
-	int calculatedHeight = (m_tileCount * m_size) / (width() / m_size) + m_size / 2;
+	int w = width() / m_size;
+	int calculatedHeight = (m_tileCount + w - 1) * m_size / w;
+	calculatedHeight -= calculatedHeight % m_size;
 	if (width() / m_size != m_backing.width() / m_size || m_backing.height() != calculatedHeight) {
 		m_backing = QPixmap(width(), calculatedHeight);
 		m_backing.fill(Qt::transparent);
@@ -53,7 +55,9 @@ void TilePainter::setTile(int index, const uint16_t* data) {
 
 void TilePainter::setTileCount(int tiles) {
 	m_tileCount = tiles;
-	setMinimumSize(16, (tiles * m_size) / (width() / m_size));
+	int w = width() / m_size;
+	int h = (tiles + w - 1) * m_size / w;
+	setMinimumSize(16, h - (h % m_size));
 	resizeEvent(nullptr);
 }
 

src/platform/qt/TileView.ui

@@ -97,6 +97,9 @@
      <property name="widgetResizable">
       <bool>true</bool>
      </property>
+     <property name="alignment">
+      <set>Qt::AlignLeading|Qt::AlignLeft|Qt::AlignTop</set>
+     </property>
      <widget class="QWidget" name="scrollAreaWidgetContents">
       <property name="geometry">
        <rect>
@@ -106,6 +109,12 @@
         <height>768</height>
        </rect>
       </property>
+      <property name="sizePolicy">
+       <sizepolicy hsizetype="Preferred" vsizetype="Maximum">
+        <horstretch>0</horstretch>
+        <verstretch>0</verstretch>
+       </sizepolicy>
+      </property>
       <layout class="QVBoxLayout" name="verticalLayout">
        <property name="spacing">
         <number>0</number>