ZVISION: Create RenderManager method to set the current background image

2 files changed, 26 insertions, 0 deletions

diff --git a/engines/zvision/render_manager.cpp b/engines/zvision/render_manager.cpp
index 4fd1a83088..b6163c83c1 100644
--- a/engines/zvision/render_manager.cpp
+++ b/engines/zvision/render_manager.cpp
@@ -24,6 +24,7 @@
 
 #include "common/file.h"
 #include "common/system.h"
+#include "common/stream.h"
 
 #include "engines/util.h"
 #include "graphics/decoders/tga.h"
@@ -39,6 +40,7 @@ RenderManager::RenderManager(OSystem *system, const int width, const int height)
 	  _height(height),
 	  _pixelFormat(2, 5, 5, 5, 0, 10, 5, 0, 0),	// RGB555
 	  _currentVideo(0),
+	  _currentBackground(0),
 	  _scaledVideoFrameBuffer(0),
 	  _needsScreenUpdate(false),
 	  _renderTable(width, height) {
@@ -155,4 +157,18 @@ RenderTable *RenderManager::getRenderTable() {
 	return &_renderTable;
 }
 
+void RenderManager::setBackgroundImage(const Common::String &fileName) {
+	Common::File *file = new Common::File;
+
+	if (!file->open(fileName)) {
+		warning("Could not open file %s", fileName.c_str());
+		return;
+	}
+
+	_currentBackground = file;
+
+	// TODO: Check if all the panoramas are the same height. AKA: can we hardcode the vertical centering to 80px?
+	renderImageToScreen(*_currentBackground, 0, 80);
+}
+
 } // End of namespace ZVision
diff --git a/engines/zvision/render_manager.h b/engines/zvision/render_manager.h
index f9d1375ecf..fc2598ecf9 100644
--- a/engines/zvision/render_manager.h
+++ b/engines/zvision/render_manager.h
@@ -54,6 +54,8 @@ private:
 	const Graphics::PixelFormat _pixelFormat;
 	RenderTable _renderTable;
 
+	Common::SeekableReadStream *_currentBackground;
+
 	Video::VideoDecoder *_currentVideo;
 	byte *_scaledVideoFrameBuffer;
 
@@ -101,6 +103,14 @@ public:
 	 */
 	void renderImageToScreen(Common::SeekableReadStream &stream, uint32 destinationX, uint32 destinationY, Common::Rect subRectangle = Common::Rect(0, 0, 0, 0));
 
+	/**
+	 * Sets the current background image to be used by the RenderManager and immediately
+	 * blits it to the screen. (It won't show up until the end of the frame)
+	 *
+	 * @param fileName    The name of the image file
+	 */
+	void setBackgroundImage(const Common::String &fileName);
+
 	RenderTable *getRenderTable();
 
 	bool needsScreenUpdate() { return _needsScreenUpdate; };