Merge from layout management branch.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@18649 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-08-26 16:21:15 +00:00
parent 01595708f3
commit 9ecf9d1c1d
277 changed files with 45889 additions and 747 deletions
@@ -0,0 +1,80 @@
+/*
+ * Copyright 2006, Haiku. All rights reserved.
+ * Distributed under the terms of the MIT License.
+ *
+ */
+
+#ifndef ICON_UTILS_H
+#define ICON_UTILS_H
+
+#include <Mime.h>
+
+class BBitmap;
+class BNode;
+
+// This class is a little different from many other classes.
+// You don't create an instance of it; you just call its various
+// static member functions for utility-like operations.
+class BIconUtils {
+								BIconUtils();
+								~BIconUtils();
+								BIconUtils(const BIconUtils&);
+			BIconUtils&			operator=(const BIconUtils&);
+
+ public:
+
+	// Utility function to import an icon from the node that
+	// has either of the provided attribute names. Which icon type
+	// is preferred (vector, small or large B_CMAP8 icon) depends
+	// on the colorspace of the provided bitmap. If the colorspace
+	// is B_CMAP8, B_CMAP8 icons are preferred. If no vector icon
+	// is available, the bitmap size must match the provided
+	// icon_size "size"!
+	static	status_t			GetIcon(BNode* node,
+										const char* vectorIconAttrName,
+										const char* smallIconAttrName,
+										const char* largeIconAttrName,
+										icon_size size,
+										BBitmap* result);
+
+	// Utility functions to import a vector icon in "flat icon"
+	// format from a BNode attribute or from a flat buffer in
+	// memory into the preallocated BBitmap "result".
+	// The colorspace of result needs to be B_RGBA32 or at
+	// least B_RGB32 (though that makes less sense). The icon
+	// will be scaled from it's "native" size of 64x64 to the
+	// size of the bitmap, the scale is derived from the bitmap
+	// width, the bitmap should have square dimension, or the
+	// icon will be cut off at the bottom (or have room left).
+	static	status_t			GetVectorIcon(BNode* node,
+											  const char* attrName,
+											  BBitmap* result);
+
+	static	status_t			GetVectorIcon(const uint8* buffer,
+											  size_t size,
+											  BBitmap* result);
+
+	// Utility function to import an "old" BeOS icon in B_CMAP8
+	// colorspace from either the small icon attribute or the
+	// large icon attribute as given in "smallIconAttrName" and
+	// "largeIconAttrName". Which icon is loaded depends on
+	// the given "size".
+	static	status_t			GetCMAP8Icon(BNode* node,
+											 const char* smallIconAttrName,
+											 const char* largeIconAttrName,
+											 icon_size size,
+											 BBitmap* icon);
+
+	// Utility functions to convert from old icon colorspace
+	// into colorspace of BBitmap "result" (should be B_RGBA32
+	// to make any sense).
+	static	status_t			ConvertFromCMAP8(BBitmap* source,
+												 BBitmap* result);
+
+	static	status_t			ConvertFromCMAP8(const uint8* data,
+												 uint32 width, uint32 height,
+												 uint32 bytesPerRow,
+												 BBitmap* result);
+};
+
+#endif // ICON_UTILS_H