1 files changed, 38 insertions, 3 deletions

diff --git a/Tools/QtBiomeVisualiser/BiomeView.h b/Tools/QtBiomeVisualiser/BiomeView.h
index c54c66491..f0521571d 100644
--- a/Tools/QtBiomeVisualiser/BiomeView.h
+++ b/Tools/QtBiomeVisualiser/BiomeView.h
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <QWidget>
+#include <memory>
 #include "ChunkCache.h"
 #include "ChunkSource.h"
 
@@ -33,12 +34,28 @@ public slots:
 	/** A specified chunk has become available, redraw it. */
 	void chunkAvailable(int a_ChunkX, int a_ChunkZ);
 
+	/** Reloads the current chunk source and redraws the entire workspace. */
+	void reload();
+
 protected:
 	double m_X, m_Z;
-	int m_Zoom;
+	double m_Zoom;
+
+	/** Cache for the loaded chunk data. */
 	ChunkCache m_Cache;
+
+	/** The entire view's contents in an offscreen image. */
 	QImage m_Image;
 
+	/** Coords of the mouse for the previous position, used while dragging. */
+	int m_LastX, m_LastY;
+
+	/** Set to true when the user has a mouse button depressed, and is dragging the view. */
+	bool m_IsMouseDragging;
+
+	/** Accumulator for the mouse wheel's delta. When the accumulator hits a threshold, the view zooms. */
+	int m_MouseWheelDelta;
+
 	/** Data used for rendering a chunk that hasn't been loaded yet */
 	uchar m_EmptyChunkImage[16 * 16 * 4];
 
@@ -55,8 +72,26 @@ protected:
 	/** Paints the entire widget */
 	virtual void paintEvent(QPaintEvent *) override;
 
-	/** Queues the chunk for rendering. */
-	void queueChunkRender(ChunkPtr a_Chunk);
+	/** Called when the user presses any mouse button. */
+	virtual void mousePressEvent(QMouseEvent * a_Event);
+
+	/** Called when the user moves the mouse. */
+	virtual void mouseMoveEvent(QMouseEvent * a_Event);
+
+	/** Called when the user releases a previously held mouse button. */
+	virtual void mouseReleaseEvent(QMouseEvent * a_Event) override;
+
+	/** Called when the user rotates the mouse wheel. */
+	virtual void wheelEvent(QWheelEvent * a_Event) override;
+
+	/** Called when the user presses a key. */
+	virtual void keyPressEvent(QKeyEvent * a_Event) override;
+
+	/** Decreases the zoom level and queues a redraw. */
+	void decreaseZoom();
+
+	/** Increases the zoom level and queues a redraw. */
+	void increaseZoom();
 };