moved winix directories to winixd subdirectory

git-svn-id: svn://ttmath.org/publicrep/winix/trunk@1027 e52654a7-88a9-db11-a3e9-0013d4bc506e

winixd/core/image.h

@@ -0,0 +1,215 @@
+/*
+ * This file is a part of Winix
+ * and is distributed under the 2-Clause BSD licence.
+ * Author: Tomasz Sowa <t.sowa@ttmath.org>
+ */
+
+/* 
+ * Copyright (c) 2010-2014, Tomasz Sowa
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ * 
+ */
+ 
+#ifndef headerfile_winix_core_image
+#define headerfile_winix_core_image
+
+#include <string>
+#include <list>
+#include "basethread.h"
+#include "textstream.h"
+#include "db/db.h"
+#include "core/item.h"
+#include "core/config.h"
+
+
+namespace Winix
+{
+
+
+
+class System;
+
+
+// aspect modes:
+// Width given, height automagically selected to preserve aspect ratio.
+#define WINIX_IMAGE_MODE_1	1
+
+// Height given, width automagically selected to preserve aspect ratio.
+#define WINIX_IMAGE_MODE_2	2
+
+// Maximum values of height and width given, aspect ratio preserved.
+#define WINIX_IMAGE_MODE_3	3
+
+// Minimum values of width and height given, aspect ratio preserved.
+#define WINIX_IMAGE_MODE_4	4
+
+// Width and height emphatically given, original aspect ratio ignored.
+#define WINIX_IMAGE_MODE_5	5
+
+// Change as per widthxheight but only if an image dimension exceeds a specified dimension.
+#define WINIX_IMAGE_MODE_6	6
+
+// Change dimensions only if both image dimensions are less than specified dimensions.
+#define WINIX_IMAGE_MODE_7	7
+
+
+
+
+// resizing
+#define WINIX_IMAGE_TYPE_RESIZE			1
+
+// generating a thumbnail
+#define WINIX_IMAGE_TYPE_CREATE_THUMB	2
+
+// cropping an image
+#define WINIX_IMAGE_TYPE_CROP			3
+
+// cropping an thumbnail
+#define WINIX_IMAGE_TYPE_CROP_THUMB		4
+
+// creating by cropping a new thumbnail (from an original image)
+#define WINIX_IMAGE_TYPE_CREATE_CROP_NEW_THUMB	5
+
+
+/*
+
+*/
+class Image : public BaseThread
+{
+public:
+
+	struct Scale
+	{
+		size_t cx;
+		size_t cy;
+		int aspect_mode;
+		int quality;
+
+		Scale()
+		{
+			cx = cy = 1;
+			aspect_mode = 2;
+			quality = 100;
+		};
+	};
+
+
+	void SetDb(Db * pdb);
+	void SetConfig(Config * pconfig);
+	void SetSystem(System * psystem);
+
+
+	// returning scale info for a directory
+	Scale GetImageScale(long dir_id);
+
+	// returning scale info (for thumbnails) for a directory
+	Scale GetThumbScale(long dir_id);
+
+
+
+	void Resize(long file_id, size_t cx, size_t cy, int aspect_mode, int quality);
+
+	// creating a new thumbnail from an original image
+	void CreateThumb(long file_id, size_t thumb_cx, size_t thumb_cy, int aspect_mode, int quality);
+
+	// cropping an image (the thumbnail is not changed)
+	void Crop(long file_id, size_t xoffset, size_t yoffset, size_t cx, size_t cy, int quality);
+
+	// cropping an existing thumbnail
+	void CropThumb(long file_id, size_t xoffset, size_t yoffset, size_t cx, size_t cy, int quality);
+
+	// creating and cropping a new thumbnail (from an original image)
+	void CropNewThumb(long file_id, size_t xoffset, size_t yoffset, size_t cx, size_t cy,
+					  size_t thumb_cx, size_t thumb_cy, int aspect_mode, int quality);
+
+
+private:
+
+	Db * db;
+	Config * config;
+	System * system;
+
+	struct ImageItem
+	{
+		int type;		// WINIX_IMAGE_TYPE_*
+		long file_id;
+		size_t cx;
+		size_t cy;
+		size_t xoffset;	// xoffset and yoffset are used when cropping
+		size_t yoffset;
+		size_t thumb_cx;
+		size_t thumb_cy;
+		int aspect_mode;
+		int quality;
+	};
+
+
+	template<typename int_type>
+	void SetMinMax(int_type & var, int var_min, int var_max)
+	{
+		if( static_cast<int>(var) < var_min )
+			var = var_min;
+
+		if( static_cast<int>(var) > var_max )
+			var = var_max;
+	}
+
+
+	// queue of thumbnails to create
+	typedef std::list<ImageItem> ImageTab;
+	ImageTab image_tab;
+	ImageItem item_temp;
+
+	// only for second thread
+	ImageItem item_work;
+	std::wstring src_path, dst_path;
+	TextStream<std::string> command;
+	TextStream<std::wstring> stream_tmp_path;
+	DbItemQuery iq;
+	std::string add_tempa;
+	std::string input_file_name;
+	std::string tmp_file_name;
+	Item file_work;
+
+	virtual bool SignalReceived();
+	virtual void Do();
+	bool CreateCommand();
+	bool CreateInputFileName();
+	void CreateTmpFileName();
+	void SaveImage();
+	void CreateImage();
+	void SelectAspect(size_t cx, size_t cy);
+	void EscapePath(const std::string & path, TextStream<std::string> & out, bool clear_stream = true);
+	void CheckParam(ImageItem & item);
+	void Add(const std::wstring & in, TextStream<std::string> & out);
+	void ImageSavedCorrectly();
+
+};
+
+
+} // namespace Winix
+
+
+#endif