1 files changed, 114 insertions, 0 deletions
diff --git a/Tools/QtBiomeVisualiser/BiomeView.h b/Tools/QtBiomeVisualiser/BiomeView.h
new file mode 100644
index 000000000..40d8b96ae
--- /dev/null
+++ b/Tools/QtBiomeVisualiser/BiomeView.h
@@ -0,0 +1,114 @@
+#pragma once
+
+#include <QWidget>
+#include <memory>
+#include "ChunkCache.h"
+#include "ChunkSource.h"
+
+
+
+
+
+class BiomeView :
+	public QWidget
+{
+	typedef QWidget super;
+	Q_OBJECT
+
+public:
+	explicit BiomeView(QWidget * parent = NULL);
+
+	QSize minimumSizeHint() const;
+	QSize sizeHint() const;
+
+	/** Replaces the chunk source used by the biome view to get the chunk biome data.
+	The entire view is then invalidated and regenerated. */
+	void setChunkSource(std::shared_ptr<ChunkSource> a_ChunkSource);
+
+	/** Sets the position of the central pixel of the map to the specified point and redraws the view. */
+	void setPosition(int a_BlockX, int a_BlockZ);
+
+	/** Sets the zoom level to the specified value and redraws the view. */
+	void setZoomLevel(double a_ZoomLevel);
+
+signals:
+	/** Signalled when the user uses the wheel to scroll upwards. */
+	void wheelUp();
+
+	/** Signalled when the user uses the wheel to scroll downwards. */
+	void wheelDown();
+
+	/** Signalled when the user presses a key to increase zoom. */
+	void increaseZoom();
+
+	/** Signalled when the user presses a key to decrease zoom. */
+	void decreaseZoom();
+
+	/** Emitted when the user moves the mouse, to reflect the current block under the cursor. */
+	void hoverChanged(int a_BlockX, int a_BlockZ, int a_Biome);
+
+public slots:
+	/** Redraw the entire widget area. */
+	void redraw();
+
+	/** 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;
+	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];
+
+
+	/** Draws the specified chunk into m_Image */
+	void drawChunk(int a_ChunkX, int a_ChunkZ);
+
+	/** Returns true iff the biome view has been initialized to contain proper biome data. */
+	bool hasData(void) const { return m_Cache.hasData(); }
+
+	/** Called when the widget is resized */
+	virtual void resizeEvent(QResizeEvent *) override;
+
+	/** Paints the entire widget */
+	virtual void paintEvent(QPaintEvent *) override;
+
+	/** 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;
+};
+
+
+
+
+