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Diffstat (limited to 'src/hyper/extent.h')
| -rw-r--r-- | src/hyper/extent.h | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/src/hyper/extent.h b/src/hyper/extent.h new file mode 100644 index 00000000..cebf6049 --- /dev/null +++ b/src/hyper/extent.h @@ -0,0 +1,129 @@ +/* + Copyright (C) 1991-2002, The Numerical Algorithms Group Ltd. + All rights reserved. + Copyright (C) 2007-2008, Gabriel Dos Reis. + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are + met: + + - Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + - 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. + + - Neither the name of The Numerical Algorithms Group Ltd. nor the + names of its contributors may be used to endorse or promote products + derived from this software without specific prior written permission. + + 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 OWNER + 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 _EXTENT_H_ +#define _EXTENT_H_ 1 + +#include "axiom-c-macros.h" +#include "hyper.h" + +/* + * This file contains global macros extern declarations for the extent + * computation routines found in extent1.c and extent2.c. + */ + +/* + * Definitions of standard text formatting dimensions, etc. + * dimensions given in pixels + */ + +#define left_margin 20 +#define non_scroll_right_margin_space 20 +#define scroll_right_margin_space 40 +#define bottom_margin 15 +#define top_margin 5 +#define scroll_top_margin top_margin +#define scrollingTopMargin 5 +#define inter_line_space 5 +#define inter_word_space 5 +#define term_punct_space 5 +#define paragraph_space 30 +#define box_space 3 +#define horiz_line_space 3 +#define spadcom_indent 30 +#define min_inter_column_space 10 +#define box_width 3 +#define dash_width 5 +#define dash_y 4 + + +/* next two from display.h. Reorg! */ + +extern short int gDisplayRegion; +extern int gRegionOffset; + +#define not_in_scroll (!(gDisplayRegion == Scrolling)) + +#define visible(y, h) \ + (not_in_scroll || ((y) + gRegionOffset + gWindow->page->scroll_off \ + <= gWindow->scrollheight && \ + (y) + gRegionOffset + gWindow->page->scroll_off - (h) >= 0)) + +#define pix_visible(y, h) \ + (not_in_scroll || ((y) + gRegionOffset + gWindow->page->scroll_off - h + \ + line_height < gWindow->page->bot_scroll_margin \ + - gWindow->page->top_scroll_margin && \ + (y) + gRegionOffset + gWindow->page->scroll_off >= 0)) + +#define above(y) ((y) + gWindow->page->scroll_off < gWindow->page->top_scroll_margin) +#define below(y) ((y) + gWindow->page->scroll_off >= gWindow->page->bot_scroll_margin) + + +/* Variables for the formatting state */ + +extern int right_margin_space; +extern int right_margin; +extern int indent; +extern int item_indent; +extern int text_x; +extern int text_y; +extern int y_off; +extern int scroll_bot; +extern int need_scroll_up_button; +extern int need_scroll_down_button; +extern int item_space; +extern int present_line_height; +extern int past_line_height; +extern int line_height; /* space between lines */ +extern int normal_text_height; /* space between lines */ +extern int space_width; /* the maximum width of a character */ +extern int word_off_height; /* the diff between text height and */ + + +/* + * externs from extent1.c + */ + +extern short int gExtentRegion; + +extern short int gInAxiomCommand; /* true iff we are in a \spadcommand */ +extern short int gInDesc; +extern short int gInItem; /* true iff we are in a \item */ +extern short int gInLine; /* true iff there have been words printed */ +extern short int gInTable; + +extern TextNode *gLineNode; + +#endif |