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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:37:15 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:37:15 +0000
commitae5d181b854d3ccb373b6bc01b4869e44ff4d87a (patch)
tree91f59efb48c56a84cc798e012fccb667b63d3fee /WWW/Library/Implementation/HTStyle.h
parentInitial commit. (diff)
downloadlynx-upstream.tar.xz
lynx-upstream.zip
Adding upstream version 2.9.0dev.12.upstream/2.9.0dev.12upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+/*
+ * $LynxId: HTStyle.h,v 1.18 2020/01/21 22:02:35 tom Exp $
+ HTStyle: Style management for libwww
+ STYLE DEFINITION FOR HYPERTEXT
+
+ Styles allow the translation between a logical property of a piece of text
+ and its physical representation.
+
+ A StyleSheet is a collection of styles, defining the translation necessary
+ to represent a document. It is a linked list of styles.
+
+Overriding this module
+
+ Why is the style structure declared in the HTStyle.h module, instead of
+ having the user browser define the structure, and the HTStyle routines just
+ use sizeof() for copying?
+
+ It's not obvious whether HTStyle.c should be common code. It's useful to
+ have common code for loading style sheets, especially if the movement toward
+ standard style sheets gets going.
+
+ If it IS common code, then both the hypertext object and HTStyle.c must know
+ the structure of a style, so HTStyle.h is a suitable place to put that.
+ HTStyle.c has to be compiled with a knowledge of the
+
+ It we take it out of the library, then of course HTStyle could be declared
+ as an undefined structure. The only references to it are in the
+ structure-flattening code HTML.c and HTPlain.c, which only use
+ HTStypeNamed().
+
+ You can in any case override this function in your own code, which will
+ prevent the HTStyle from being loaded. You will be able to redefine your
+ style structure in this case without problems, as no other moule needs to
+ know it.
+
+ */
+#ifndef HTStyle_H
+#define HTStyle_H
+
+#include <HTAnchor.h>
+
+typedef long int HTFont; /* Dummy definition instead */
+
+#ifdef NeXT_suppressed
+#include <appkit/appkit.h>
+typedef NXCoord HTCoord;
+
+#define HTParagraphStyle NXTextStyle
+#define HTCoord NXCoord
+typedef struct _color {
+ float grey;
+ int RGBColor;
+} HTColor;
+
+#else
+
+typedef int HTCoord; /* changed from float to int - kw */
+
+typedef struct _HTParagraphStyle {
+ HTCoord left_indent; /* @@@@ junk! etc etc */
+} HTParagraphStyle;
+
+typedef int HTColor; /* Sorry about the US spelling! */
+
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+#define STYLE_NAME_LENGTH 80 /* @@@@@@@@@@@ */
+ typedef struct {
+ short kind; /* only NX_LEFTTAB implemented */
+ HTCoord position; /* x coordinate for stop */
+ } HTTabStop;
+
+/* The Style Structure
+ * -------------------
+ */
+
+ typedef struct _HTStyle {
+
+/* Style management information
+*/
+ struct _HTStyle *next; /* Link for putting into stylesheet */
+ char *w_name; /* Style name */
+ const char *c_name; /* Style name */
+ int id; /* equivalent of name, for speed */
+ char *w_SGMLTag; /* Tag name to start */
+ const char *c_SGMLTag; /* Tag name to start */
+
+/* Character attributes (a la NXRun)
+*/
+ HTFont font; /* Font id */
+ HTCoord fontSize; /* The size of font, not independent */
+ HTColor color; /* text gray of current run */
+ int superscript; /* superscript (-sub) in points */
+
+ HTAnchor *anchor; /* Anchor id if any, else zero */
+
+/* Paragraph Attributes (a la NXTextStyle)
+*/
+ HTCoord indent1st; /* how far first line in paragraph is
+ * indented */
+ HTCoord leftIndent; /* how far second line is indented */
+ HTCoord rightIndent; /* (Missing from NeXT version */
+ short alignment; /* quad justification */
+ HTCoord lineHt; /* line height */
+ HTCoord descentLine; /* descender bottom from baseline */
+ const HTTabStop *tabs; /* array of tab stops, 0 terminated */
+
+ BOOL wordWrap; /* Yes means wrap at space not char */
+ BOOL freeFormat; /* Yes means \n is just white space */
+ HTCoord spaceBefore; /* Omissions from NXTextStyle */
+ HTCoord spaceAfter;
+ int paraFlags; /* Paragraph flags, bits as follows: */
+
+#define PARA_KEEP 1 /* Do not break page within this paragraph */
+#define PARA_WITH_NEXT 2 /* Do not break page after this paragraph */
+
+#define HT_JUSTIFY 0 /* For alignment */
+#define HT_LEFT 1
+#define HT_RIGHT 2
+#define HT_CENTER 3
+
+ } HTStyle;
+
+#define GetHTStyleName(p) ((p)->w_name ? (p)->w_name : (p)->c_name)
+#define GetHTStyleSGML(p) ((p)->w_SGMLTag ? (p)->w_SGMLTag : (p)->c_SGMLTag)
+
+#define HTStyleInit( \
+ next, name, SGML_tag, \
+ font, fontsize, color, superscript, \
+ anchor, indent1st, leftIndent, rightIndent, \
+ alignment, lineHt, descentLine, \
+ tabs, wordWrap, freeFormat, spaceBefore, spaceAfter, paraFlags) \
+ { \
+ next, NULL, #name, ST_##name, NULL, SGML_tag, \
+ font, fontsize, color, superscript, \
+ anchor, indent1st, leftIndent, rightIndent, \
+ alignment, lineHt, descentLine, \
+ tabs, wordWrap, freeFormat, spaceBefore, spaceAfter, paraFlags }
+
+#define HT_ALIGN_NONE (-1)
+
+/* Style functions:
+*/
+ extern HTStyle *HTStyleNew(void);
+ extern HTStyle *HTStyleNewNamed(const char *name);
+ extern HTStyle *HTStyleFree(HTStyle *self);
+
+#ifdef SUPRESS
+ extern HTStyle *HTStyleRead(HTStyle *self, HTStream *stream);
+ extern HTStyle *HTStyleWrite(HTStyle *self, HTStream *stream);
+#endif
+/* Style Sheet
+ * -----------
+ */
+ typedef struct _HTStyleSheet {
+ const char *name;
+ HTStyle *styles;
+ } HTStyleSheet;
+
+/* Stylesheet functions:
+*/
+ extern HTStyleSheet *HTStyleSheetNew(void);
+ extern HTStyleSheet *HTStyleSheetFree(HTStyleSheet *self);
+ extern HTStyle *HTStyleNamed(HTStyleSheet *self, const char *name);
+ extern HTStyle *HTStyleForParagraph(HTStyleSheet *self, HTParagraphStyle * paraStyle);
+ extern HTStyle *HTStyleMatching(HTStyleSheet *self, HTStyle *style);
+
+/* extern HTStyle * HTStyleForRun (HTStyleSheet *self, NXRun * run); */
+ extern HTStyleSheet *HTStyleSheetAddStyle(HTStyleSheet *self, HTStyle *style);
+ extern HTStyleSheet *HTStyleSheetRemoveStyle(HTStyleSheet *self, HTStyle *style);
+
+#ifdef SUPPRESS
+ extern HTStyleSheet *HTStyleSheetRead(HTStyleSheet *self, HTStream *stream);
+ extern HTStyleSheet *HTStyleSheetWrite(HTStyleSheet *self, HTStream *stream);
+#endif
+#define CLEAR_POINTER ((void *)-1) /* Pointer value means "clear me" */
+
+/* DefaultStyle.c */
+ extern HTStyleSheet *DefaultStyle(HTStyle ***result_array);
+
+/* enum, use this instead of HTStyle name comparisons */
+ enum HTStyle_Enum {
+ ST_Normal = 0,
+ ST_DivCenter,
+ ST_DivLeft,
+ ST_DivRight,
+ ST_Banner,
+ ST_Blockquote,
+ ST_Bq,
+ ST_Footnote,
+ ST_List,
+ ST_List1,
+ ST_List2,
+ ST_List3,
+ ST_List4,
+ ST_List5,
+ ST_List6,
+ ST_Menu,
+ ST_Menu1,
+ ST_Menu2,
+ ST_Menu3,
+ ST_Menu4,
+ ST_Menu5,
+ ST_Menu6,
+ ST_Glossary,
+ ST_Glossary1,
+ ST_Glossary2,
+ ST_Glossary3,
+ ST_Glossary4,
+ ST_Glossary5,
+ ST_Glossary6,
+ ST_GlossaryCompact,
+ ST_GlossaryCompact1,
+ ST_GlossaryCompact2,
+ ST_GlossaryCompact3,
+ ST_GlossaryCompact4,
+ ST_GlossaryCompact5,
+ ST_GlossaryCompact6,
+ ST_Example,
+ ST_Preformatted,
+ ST_Listing,
+ ST_Address,
+ ST_Note,
+ ST_Heading1,
+ ST_Heading2,
+ ST_Heading3,
+ ST_Heading4,
+ ST_Heading5,
+ ST_Heading6,
+ ST_HeadingCenter,
+ ST_HeadingLeft,
+ ST_HeadingRight
+ };
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* HTStyle_H */