From ac41b0f103856f3ebe129e3d3578312eae4dcc03 Mon Sep 17 00:00:00 2001 From: Stefano Ceccherini Date: Fri, 9 Apr 2004 11:07:35 +0000 Subject: [PATCH] Added license git-svn-id: file:///srv/svn/repos/haiku/trunk/current@7188 a95241bf-73f2-0310-859d-f6bbb57e9c96 --- headers/private/interface/WidthBuffer.h | 42 ++++++++++++++++++++++--- 1 file changed, 38 insertions(+), 4 deletions(-) diff --git a/headers/private/interface/WidthBuffer.h b/headers/private/interface/WidthBuffer.h index db111e83c2..5d54de8666 100644 --- a/headers/private/interface/WidthBuffer.h +++ b/headers/private/interface/WidthBuffer.h @@ -1,10 +1,42 @@ +/* + * Copyright (c) 2003-2004 OpenBeOS + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * File: WidthBuffer.cpp + * Author: Stefano Ceccherini (burton666@libero.it) + * Description: _BWidthBuffer_ stores charachters widths in a hash table, to be able + * to retrieve them without passing through the app server. + * Used by BTextView and OpenTracker. + */ #ifndef __WIDTHBUFFER_H #define __WIDTHBUFFER_H #include "TextViewSupportBuffer.h" +// TODO: enable this as soon as we are sure opentracker works +// with our libraries, since using a BFont here (as Dano does) is much better, +// as fonts can be classified also by spacing mode and other attributes. +#define USE_DANO_WIDTHBUFFER 0 + struct _width_table_ { -#if B_BEOS_VERSION_DANO +#if USE_DANO_WIDTHBUFFER BFont font; // corresponding font #else int32 fontCode; // font code @@ -15,6 +47,7 @@ struct _width_table_ { void *widths; // width table }; + class _BTextGapBuffer_; class _BWidthBuffer_ : public _BTextViewSupportBuffer_<_width_table_> { public: @@ -23,15 +56,16 @@ public: float StringWidth(const char *inText, int32 fromOffset, int32 length, const BFont *inStyle); - float StringWidth(_BTextGapBuffer_ &, int32 fromOffset, int32 length, + float StringWidth(_BTextGapBuffer_ &gapBuffer, int32 fromOffset, int32 length, const BFont *inStyle); private: bool FindTable(const BFont *font, int32 *outIndex); int32 InsertTable(const BFont *font); - bool GetEscapement(uint32, int32, float *); - float HashEscapements(const char *, int32, int32, int32, const BFont *); + bool GetEscapement(uint32 value, int32 index, float *escapement); + float HashEscapements(const char *chars, int32 numChars, int32 numBytes, + int32 tableIndex, const BFont *font); static uint32 Hash(uint32); };