X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Foutput%2Fcairo.c;h=0176d3caa22b3ace45c83fd349e14e15cf4aaee6;hb=1b014fd004135359c6e37b1dfda5168d7745965a;hp=19a3678cc1f0d45dfda22a136b5c53ead1ac56b5;hpb=8b37f66b3599f5809fbbb300d5cba5bb0557c184;p=pspp diff --git a/src/output/cairo.c b/src/output/cairo.c index 19a3678cc1..0176d3caa2 100644 --- a/src/output/cairo.c +++ b/src/output/cairo.c @@ -1,5 +1,5 @@ /* PSPP - a program for statistical analysis. - Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014 Free Software Foundation, Inc. + Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -21,19 +21,23 @@ #include "libpspp/assertion.h" #include "libpspp/cast.h" #include "libpspp/message.h" +#include "libpspp/pool.h" #include "libpspp/start-date.h" #include "libpspp/str.h" #include "libpspp/string-map.h" #include "libpspp/version.h" +#include "data/file-handle-def.h" #include "output/cairo-chart.h" #include "output/chart-item-provider.h" #include "output/charts/boxplot.h" #include "output/charts/np-plot.h" #include "output/charts/piechart.h" +#include "output/charts/barchart.h" #include "output/charts/plot-hist.h" #include "output/charts/roc-chart.h" #include "output/charts/spreadlevel-plot.h" #include "output/charts/scree.h" +#include "output/charts/scatterplot.h" #include "output/driver-provider.h" #include "output/message-item.h" #include "output/options.h" @@ -54,6 +58,7 @@ #include #include +#include "gl/c-strcase.h" #include "gl/intprops.h" #include "gl/minmax.h" #include "gl/xalloc.h" @@ -65,8 +70,8 @@ #define H TABLE_HORZ #define V TABLE_VERT -/* Measurements as we present to the rest of PSPP. */ -#define XR_POINT 1000 +/* The unit used for internal measurements is inch/(72 * XR_POINT). */ +#define XR_POINT PANGO_SCALE /* Conversions to and from points. */ static double @@ -75,6 +80,13 @@ xr_to_pt (int x) return x / (double) XR_POINT; } +/* Conversion from 1/96" units ("pixels") to Cairo/Pango units. */ +static int +px_to_xr (int x) +{ + return x * (PANGO_SCALE * 72 / 96); +} + /* Output types. */ enum xr_output_type { @@ -127,10 +139,11 @@ struct xr_driver int top_margin; /* Top margin in inch/(72 * XR_POINT). */ int bottom_margin; /* Bottom margin in inch/(72 * XR_POINT). */ - int line_gutter; /* Space around lines. */ int line_space; /* Space between lines. */ int line_width; /* Width of lines. */ + int min_break[TABLE_N_AXES]; /* Min cell size to break across pages. */ + struct xr_color bg; /* Background color */ struct xr_color fg; /* Foreground color */ @@ -142,8 +155,9 @@ struct xr_driver char *subtitle; cairo_t *cairo; int page_number; /* Current page number. */ - int y; + int x, y; struct xr_render_fsm *fsm; + int nest; }; static const struct output_driver_class cairo_driver_class; @@ -152,14 +166,18 @@ static void xr_driver_destroy_fsm (struct xr_driver *); static void xr_driver_run_fsm (struct xr_driver *); static void xr_draw_line (void *, int bb[TABLE_N_AXES][2], - enum render_line_style styles[TABLE_N_AXES][2]); + enum render_line_style styles[TABLE_N_AXES][2], + struct cell_color colors[TABLE_N_AXES][2]); static void xr_measure_cell_width (void *, const struct table_cell *, int *min, int *max); static int xr_measure_cell_height (void *, const struct table_cell *, int width); static void xr_draw_cell (void *, const struct table_cell *, int bb[TABLE_N_AXES][2], + int spill[TABLE_N_AXES][2], int clip[TABLE_N_AXES][2]); +static int xr_adjust_break (void *, const struct table_cell *, + int width, int height); static struct xr_render_fsm *xr_render_output_item ( struct xr_driver *, const struct output_item *); @@ -212,37 +230,52 @@ parse_color (struct output_driver *d, struct string_map *options, } static PangoFontDescription * -parse_font (struct output_driver *d, struct string_map *options, - const char *key, const char *default_value, - int default_size) +parse_font (const char *font, int default_size, bool bold, bool italic) { - PangoFontDescription *desc; - char *string; + if (!c_strcasecmp (font, "Monospaced")) + font = "Monospace"; - /* Parse KEY as a font description. */ - string = parse_string (opt (d, options, key, default_value)); - desc = pango_font_description_from_string (string); + PangoFontDescription *desc = pango_font_description_from_string (font); if (desc == NULL) + return NULL; + + /* If the font description didn't include an explicit font size, then set it + to DEFAULT_SIZE, which is in inch/72000 units. */ + if (!(pango_font_description_get_set_fields (desc) & PANGO_FONT_MASK_SIZE)) + pango_font_description_set_size (desc, + (default_size / 1000.0) * PANGO_SCALE); + + pango_font_description_set_weight (desc, (bold + ? PANGO_WEIGHT_BOLD + : PANGO_WEIGHT_NORMAL)); + pango_font_description_set_style (desc, (italic + ? PANGO_STYLE_ITALIC + : PANGO_STYLE_NORMAL)); + + return desc; +} + +static PangoFontDescription * +parse_font_option (struct output_driver *d, struct string_map *options, + const char *key, const char *default_value, + int default_size, bool bold, bool italic) +{ + char *string = parse_string (opt (d, options, key, default_value)); + PangoFontDescription *desc = parse_font (string, default_size, bold, italic); + if (!desc) { msg (MW, _("`%s': bad font specification"), string); /* Fall back to DEFAULT_VALUE, which had better be a valid font description. */ - desc = pango_font_description_from_string (default_value); + desc = parse_font (default_value, default_size, bold, italic); assert (desc != NULL); } free (string); - /* If the font description didn't include an explicit font size, then set it - to DEFAULT_SIZE, which is in inch/72000 units. */ - if (!(pango_font_description_get_set_fields (desc) & PANGO_FONT_MASK_SIZE)) - pango_font_description_set_size (desc, - (default_size / 1000.0) * PANGO_SCALE); - return desc; } - static void apply_options (struct xr_driver *xr, struct string_map *o) { @@ -253,6 +286,7 @@ apply_options (struct xr_driver *xr, struct string_map *o) int top_margin, bottom_margin; int paper_width, paper_length; int font_size; + int min_break[TABLE_N_AXES]; /* Scale factor from inch/72000 to inch/(72 * XR_POINT). */ const double scale = XR_POINT / 1000.; @@ -268,14 +302,13 @@ apply_options (struct xr_driver *xr, struct string_map *o) } font_size = parse_int (opt (d, o, "font-size", "10000"), 1000, 1000000); - xr->fonts[XR_FONT_FIXED].desc = parse_font (d, o, "fixed-font", "monospace", - font_size); - xr->fonts[XR_FONT_PROPORTIONAL].desc = parse_font (d, o, "prop-font", - "serif", font_size); - xr->fonts[XR_FONT_EMPHASIS].desc = parse_font (d, o, "emph-font", - "serif italic", font_size); - - xr->line_gutter = parse_dimension (opt (d, o, "gutter", "3pt")) * scale; + xr->fonts[XR_FONT_FIXED].desc = parse_font_option + (d, o, "fixed-font", "monospace", font_size, false, false); + xr->fonts[XR_FONT_PROPORTIONAL].desc = parse_font_option ( + d, o, "prop-font", "sans serif", font_size, false, false); + xr->fonts[XR_FONT_EMPHASIS].desc = parse_font_option ( + d, o, "emph-font", "sans serif", font_size, false, true); + xr->line_space = XR_POINT; xr->line_width = XR_POINT / 2; xr->page_number = 0; @@ -290,6 +323,9 @@ apply_options (struct xr_driver *xr, struct string_map *o) top_margin = parse_dimension (opt (d, o, "top-margin", ".5in")); bottom_margin = parse_dimension (opt (d, o, "bottom-margin", ".5in")); + min_break[H] = parse_dimension (opt (d, o, "min-hbreak", NULL)) * scale; + min_break[V] = parse_dimension (opt (d, o, "min-vbreak", NULL)) * scale; + /* Convert to inch/(XR_POINT * 72). */ xr->left_margin = left_margin * scale; xr->right_margin = right_margin * scale; @@ -297,6 +333,8 @@ apply_options (struct xr_driver *xr, struct string_map *o) xr->bottom_margin = bottom_margin * scale; xr->width = (paper_width - left_margin - right_margin) * scale; xr->length = (paper_length - top_margin - bottom_margin) * scale; + xr->min_break[H] = min_break[H] >= 0 ? min_break[H] : xr->width / 2; + xr->min_break[V] = min_break[V] >= 0 ? min_break[V] : xr->length / 2; } static struct xr_driver * @@ -315,13 +353,17 @@ xr_allocate (const char *name, int device_type, struct string_map *o) static int pango_to_xr (int pango) { - return ceil (pango * (1. * XR_POINT / PANGO_SCALE)); + return (XR_POINT != PANGO_SCALE + ? ceil (pango * (1. * XR_POINT / PANGO_SCALE)) + : pango); } static int xr_to_pango (int xr) { - return ceil (xr * (1. / XR_POINT * PANGO_SCALE)); + return (XR_POINT != PANGO_SCALE + ? ceil (xr * (1. / XR_POINT * PANGO_SCALE)) + : xr); } static bool @@ -351,12 +393,11 @@ xr_set_cairo (struct xr_driver *xr, cairo_t *cairo) if (xr->params == NULL) { - int single_width, double_width; - xr->params = xmalloc (sizeof *xr->params); xr->params->draw_line = xr_draw_line; xr->params->measure_cell_width = xr_measure_cell_width; xr->params->measure_cell_height = xr_measure_cell_height; + xr->params->adjust_break = xr_adjust_break; xr->params->draw_cell = xr_draw_cell; xr->params->aux = xr; xr->params->size[H] = xr->width; @@ -364,14 +405,21 @@ xr_set_cairo (struct xr_driver *xr, cairo_t *cairo) xr->params->font_size[H] = xr->char_width; xr->params->font_size[V] = xr->char_height; - single_width = 2 * xr->line_gutter + xr->line_width; - double_width = 2 * xr->line_gutter + xr->line_space + 2 * xr->line_width; + int lw = xr->line_width; + int ls = xr->line_space; for (i = 0; i < TABLE_N_AXES; i++) { xr->params->line_widths[i][RENDER_LINE_NONE] = 0; - xr->params->line_widths[i][RENDER_LINE_SINGLE] = single_width; - xr->params->line_widths[i][RENDER_LINE_DOUBLE] = double_width; + xr->params->line_widths[i][RENDER_LINE_SINGLE] = lw; + xr->params->line_widths[i][RENDER_LINE_DASHED] = lw; + xr->params->line_widths[i][RENDER_LINE_THICK] = lw * 2; + xr->params->line_widths[i][RENDER_LINE_THIN] = lw / 2; + xr->params->line_widths[i][RENDER_LINE_DOUBLE] = 2 * lw + ls; } + + for (i = 0; i < TABLE_N_AXES; i++) + xr->params->min_break[i] = xr->min_break[i]; + xr->params->supports_margins = true; } cairo_set_source_rgb (xr->cairo, xr->fg.red, xr->fg.green, xr->fg.blue); @@ -448,24 +496,30 @@ xr_create (const char *file_name, enum settings_output_devices device_type, } static struct output_driver * -xr_pdf_create (const char *file_name, enum settings_output_devices device_type, +xr_pdf_create (struct file_handle *fh, enum settings_output_devices device_type, struct string_map *o) { - return xr_create (file_name, device_type, o, XR_PDF); + struct output_driver *od = xr_create (fh_get_file_name (fh), device_type, o, XR_PDF); + fh_unref (fh); + return od ; } static struct output_driver * -xr_ps_create (const char *file_name, enum settings_output_devices device_type, +xr_ps_create (struct file_handle *fh, enum settings_output_devices device_type, struct string_map *o) { - return xr_create (file_name, device_type, o, XR_PS); + struct output_driver *od = xr_create (fh_get_file_name (fh), device_type, o, XR_PS); + fh_unref (fh); + return od ; } static struct output_driver * -xr_svg_create (const char *file_name, enum settings_output_devices device_type, +xr_svg_create (struct file_handle *fh, enum settings_output_devices device_type, struct string_map *o) { - return xr_create (file_name, device_type, o, XR_SVG); + struct output_driver *od = xr_create (fh_get_file_name (fh), device_type, o, XR_SVG); + fh_unref (fh); + return od ; } static void @@ -489,7 +543,6 @@ xr_destroy (struct output_driver *driver) cairo_destroy (xr->cairo); } - free (xr->command_name); for (i = 0; i < XR_N_FONTS; i++) { struct xr_font *font = &xr->fonts[i]; @@ -512,45 +565,11 @@ xr_flush (struct output_driver *driver) cairo_surface_flush (cairo_get_target (xr->cairo)); } -static void -xr_init_caption_cell (const char *caption, struct table_cell *cell) -{ - cell->contents = caption; - cell->options = TAB_LEFT; - cell->destructor = NULL; -} - -static struct render_page * -xr_render_table_item (struct xr_driver *xr, const struct table_item *item, - int *caption_widthp, int *caption_heightp) -{ - const char *caption = table_item_get_caption (item); - - if (caption != NULL) - { - /* XXX doesn't do well with very large captions */ - int min_width, max_width; - struct table_cell cell; - - xr_init_caption_cell (caption, &cell); - - xr_measure_cell_width (xr, &cell, &min_width, &max_width); - *caption_widthp = MIN (max_width, xr->width); - *caption_heightp = xr_measure_cell_height (xr, &cell, *caption_widthp); - } - else - *caption_heightp = 0; - - return render_page_create (xr->params, table_item_get_table (item)); -} - static void xr_submit (struct output_driver *driver, const struct output_item *output_item) { struct xr_driver *xr = xr_driver_cast (driver); - output_driver_track_current_command (output_item, &xr->command_name); - xr_driver_output_item (xr, output_item); while (xr_driver_need_new_page (xr)) { @@ -569,28 +588,23 @@ xr_submit (struct output_driver *driver, const struct output_item *output_item) See the big comment in cairo.h for intended usage. */ -/* Gives new page CAIRO to XR for output. CAIRO may be null to skip actually - rendering the page (which might be useful to find out how many pages an - output document has without actually rendering it). */ +/* Gives new page CAIRO to XR for output. */ void xr_driver_next_page (struct xr_driver *xr, cairo_t *cairo) { - if (cairo != NULL) - { - cairo_save (cairo); - cairo_set_source_rgb (cairo, xr->bg.red, xr->bg.green, xr->bg.blue); - cairo_rectangle (cairo, 0, 0, xr->width, xr->length); - cairo_fill (cairo); - cairo_restore (cairo); - - cairo_translate (cairo, - xr_to_pt (xr->left_margin), - xr_to_pt (xr->top_margin)); - } + cairo_save (cairo); + cairo_set_source_rgb (cairo, xr->bg.red, xr->bg.green, xr->bg.blue); + cairo_rectangle (cairo, 0, 0, xr->width, xr->length); + cairo_fill (cairo); + cairo_restore (cairo); + + cairo_translate (cairo, + xr_to_pt (xr->left_margin), + xr_to_pt (xr->top_margin)); xr->page_number++; xr->cairo = cairo; - xr->y = 0; + xr->x = xr->y = 0; xr_driver_run_fsm (xr); } @@ -642,17 +656,49 @@ xr_driver_run_fsm (struct xr_driver *xr) static void xr_layout_cell (struct xr_driver *, const struct table_cell *, int bb[TABLE_N_AXES][2], int clip[TABLE_N_AXES][2], - int *width, int *height); + int *width, int *height, int *brk); static void -dump_line (struct xr_driver *xr, int x0, int y0, int x1, int y1) +dump_line (struct xr_driver *xr, int x0, int y0, int x1, int y1, int style, + const struct cell_color *color) +{ + cairo_new_path (xr->cairo); + cairo_set_source_rgb (xr->cairo, + color->r / 255.0, color->g / 255.0, color->b / 255.0); + cairo_set_line_width ( + xr->cairo, + xr_to_pt (style == RENDER_LINE_THICK ? xr->line_width * 2 + : style == RENDER_LINE_THIN ? xr->line_width / 2 + : xr->line_width)); + cairo_move_to (xr->cairo, xr_to_pt (x0 + xr->x), xr_to_pt (y0 + xr->y)); + cairo_line_to (xr->cairo, xr_to_pt (x1 + xr->x), xr_to_pt (y1 + xr->y)); + cairo_stroke (xr->cairo); +} + +static void UNUSED +dump_rectangle (struct xr_driver *xr, int x0, int y0, int x1, int y1) { cairo_new_path (xr->cairo); - cairo_move_to (xr->cairo, xr_to_pt (x0), xr_to_pt (y0 + xr->y)); - cairo_line_to (xr->cairo, xr_to_pt (x1), xr_to_pt (y1 + xr->y)); + cairo_set_line_width (xr->cairo, xr_to_pt (xr->line_width)); + cairo_move_to (xr->cairo, xr_to_pt (x0 + xr->x), xr_to_pt (y0 + xr->y)); + cairo_line_to (xr->cairo, xr_to_pt (x1 + xr->x), xr_to_pt (y0 + xr->y)); + cairo_line_to (xr->cairo, xr_to_pt (x1 + xr->x), xr_to_pt (y1 + xr->y)); + cairo_line_to (xr->cairo, xr_to_pt (x0 + xr->x), xr_to_pt (y1 + xr->y)); + cairo_close_path (xr->cairo); cairo_stroke (xr->cairo); } +static void +fill_rectangle (struct xr_driver *xr, int x0, int y0, int x1, int y1) +{ + cairo_new_path (xr->cairo); + cairo_set_line_width (xr->cairo, xr_to_pt (xr->line_width)); + cairo_rectangle (xr->cairo, + xr_to_pt (x0 + xr->x), xr_to_pt (y0 + xr->y), + xr_to_pt (x1 - x0), xr_to_pt (y1 - y0)); + cairo_fill (xr->cairo); +} + /* Draws a horizontal line X0...X2 at Y if LEFT says so, shortening it to X0...X1 if SHORTEN is true. Draws a horizontal line X1...X3 at Y if RIGHT says so, @@ -660,16 +706,19 @@ dump_line (struct xr_driver *xr, int x0, int y0, int x1, int y1) static void horz_line (struct xr_driver *xr, int x0, int x1, int x2, int x3, int y, enum render_line_style left, enum render_line_style right, + const struct cell_color *left_color, + const struct cell_color *right_color, bool shorten) { - if (left != RENDER_LINE_NONE && right != RENDER_LINE_NONE && !shorten) - dump_line (xr, x0, y, x3, y); + if (left != RENDER_LINE_NONE && right != RENDER_LINE_NONE && !shorten + && cell_color_equal (left_color, right_color)) + dump_line (xr, x0, y, x3, y, left, left_color); else { if (left != RENDER_LINE_NONE) - dump_line (xr, x0, y, shorten ? x1 : x2, y); + dump_line (xr, x0, y, shorten ? x1 : x2, y, left, left_color); if (right != RENDER_LINE_NONE) - dump_line (xr, shorten ? x2 : x1, y, x3, y); + dump_line (xr, shorten ? x2 : x1, y, x3, y, right, right_color); } } @@ -680,31 +729,42 @@ horz_line (struct xr_driver *xr, int x0, int x1, int x2, int x3, int y, static void vert_line (struct xr_driver *xr, int y0, int y1, int y2, int y3, int x, enum render_line_style top, enum render_line_style bottom, + const struct cell_color *top_color, + const struct cell_color *bottom_color, bool shorten) { - if (top != RENDER_LINE_NONE && bottom != RENDER_LINE_NONE && !shorten) - dump_line (xr, x, y0, x, y3); + if (top != RENDER_LINE_NONE && bottom != RENDER_LINE_NONE && !shorten + && cell_color_equal (top_color, bottom_color)) + dump_line (xr, x, y0, x, y3, top, top_color); else { if (top != RENDER_LINE_NONE) - dump_line (xr, x, y0, x, shorten ? y1 : y2); + dump_line (xr, x, y0, x, shorten ? y1 : y2, top, top_color); if (bottom != RENDER_LINE_NONE) - dump_line (xr, x, shorten ? y2 : y1, x, y3); + dump_line (xr, x, shorten ? y2 : y1, x, y3, bottom, bottom_color); } } static void xr_draw_line (void *xr_, int bb[TABLE_N_AXES][2], - enum render_line_style styles[TABLE_N_AXES][2]) + enum render_line_style styles[TABLE_N_AXES][2], + struct cell_color colors[TABLE_N_AXES][2]) { const int x0 = bb[H][0]; const int y0 = bb[V][0]; const int x3 = bb[H][1]; const int y3 = bb[V][1]; const int top = styles[H][0]; - const int left = styles[V][0]; const int bottom = styles[H][1]; - const int right = styles[V][1]; + + int start_side = render_direction_rtl(); + int end_side = !start_side; + const int start_of_line = styles[V][start_side]; + const int end_of_line = styles[V][end_side]; + const struct cell_color *top_color = &colors[H][0]; + const struct cell_color *bottom_color = &colors[H][1]; + const struct cell_color *start_color = &colors[V][start_side]; + const struct cell_color *end_color = &colors[V][end_side]; /* The algorithm here is somewhat subtle, to allow it to handle all the kinds of intersections that we need. @@ -744,7 +804,7 @@ xr_draw_line (void *xr_, int bb[TABLE_N_AXES][2], (It doesn't make sense to have different kinds of line on the same axis, so we don't try to gracefully handle that case.) */ bool double_vert = top == RENDER_LINE_DOUBLE || bottom == RENDER_LINE_DOUBLE; - bool double_horz = left == RENDER_LINE_DOUBLE || right == RENDER_LINE_DOUBLE; + bool double_horz = start_of_line == RENDER_LINE_DOUBLE || end_of_line == RENDER_LINE_DOUBLE; /* When horizontal lines are doubled, the left-side line along y1 normally runs from x0 to x2, @@ -779,8 +839,8 @@ xr_draw_line (void *xr_, int bb[TABLE_N_AXES][2], int x1 = xc - horz_line_ofs; int x2 = xc + horz_line_ofs; - bool shorten_x1_lines = left == RENDER_LINE_DOUBLE; - bool shorten_x2_lines = right == RENDER_LINE_DOUBLE; + bool shorten_x1_lines = start_of_line == RENDER_LINE_DOUBLE; + bool shorten_x2_lines = end_of_line == RENDER_LINE_DOUBLE; bool shorten_xc_line = shorten_x1_lines && shorten_x2_lines; int vert_line_ofs = double_horz ? double_line_ofs : 0; int yc = (y0 + y3) / 2; @@ -788,19 +848,25 @@ xr_draw_line (void *xr_, int bb[TABLE_N_AXES][2], int y2 = yc + vert_line_ofs; if (!double_horz) - horz_line (xr, x0, x1, x2, x3, yc, left, right, shorten_yc_line); + horz_line (xr, x0, x1, x2, x3, yc, start_of_line, end_of_line, + start_color, end_color, shorten_yc_line); else { - horz_line (xr, x0, x1, x2, x3, y1, left, right, shorten_y1_lines); - horz_line (xr, x0, x1, x2, x3, y2, left, right, shorten_y2_lines); + horz_line (xr, x0, x1, x2, x3, y1, start_of_line, end_of_line, + start_color, end_color, shorten_y1_lines); + horz_line (xr, x0, x1, x2, x3, y2, start_of_line, end_of_line, + start_color, end_color, shorten_y2_lines); } if (!double_vert) - vert_line (xr, y0, y1, y2, y3, xc, top, bottom, shorten_xc_line); + vert_line (xr, y0, y1, y2, y3, xc, top, bottom, top_color, bottom_color, + shorten_xc_line); else { - vert_line (xr, y0, y1, y2, y3, x1, top, bottom, shorten_x1_lines); - vert_line (xr, y0, y1, y2, y3, x2, top, bottom, shorten_x2_lines); + vert_line (xr, y0, y1, y2, y3, x1, top, bottom, top_color, bottom_color, + shorten_x1_lines); + vert_line (xr, y0, y1, y2, y3, x2, top, bottom, top_color, bottom_color, + shorten_x2_lines); } } @@ -818,10 +884,17 @@ xr_measure_cell_width (void *xr_, const struct table_cell *cell, bb[V][0] = 0; bb[V][1] = INT_MAX; clip[H][0] = clip[H][1] = clip[V][0] = clip[V][1] = 0; - xr_layout_cell (xr, cell, bb, clip, max_width, &h); + xr_layout_cell (xr, cell, bb, clip, max_width, &h, NULL); bb[H][1] = 1; - xr_layout_cell (xr, cell, bb, clip, min_width, &h); + xr_layout_cell (xr, cell, bb, clip, min_width, &h, NULL); + + if (*min_width > 0) + *min_width += px_to_xr (cell->style->margin[H][0] + + cell->style->margin[H][1]); + if (*max_width > 0) + *max_width += px_to_xr (cell->style->margin[H][0] + + cell->style->margin[H][1]); } static int @@ -833,42 +906,210 @@ xr_measure_cell_height (void *xr_, const struct table_cell *cell, int width) int w, h; bb[H][0] = 0; - bb[H][1] = width; + bb[H][1] = width - px_to_xr (cell->style->margin[H][0] + + cell->style->margin[H][1]); bb[V][0] = 0; bb[V][1] = INT_MAX; clip[H][0] = clip[H][1] = clip[V][0] = clip[V][1] = 0; - xr_layout_cell (xr, cell, bb, clip, &w, &h); + xr_layout_cell (xr, cell, bb, clip, &w, &h, NULL); + h += px_to_xr (cell->style->margin[V][0] + cell->style->margin[V][1]); return h; } +static void xr_clip (struct xr_driver *, int clip[TABLE_N_AXES][2]); + static void xr_draw_cell (void *xr_, const struct table_cell *cell, - int bb[TABLE_N_AXES][2], int clip[TABLE_N_AXES][2]) + int bb[TABLE_N_AXES][2], + int spill[TABLE_N_AXES][2], + int clip[TABLE_N_AXES][2]) { struct xr_driver *xr = xr_; - int w, h; + int w, h, brk; + + cairo_save (xr->cairo); + int bg_clip[TABLE_N_AXES][2]; + for (int axis = 0; axis < TABLE_N_AXES; axis++) + { + bg_clip[axis][0] = clip[axis][0]; + if (bb[axis][0] == clip[axis][0]) + bg_clip[axis][0] -= spill[axis][0]; + + bg_clip[axis][1] = clip[axis][1]; + if (bb[axis][1] == clip[axis][1]) + bg_clip[axis][1] += spill[axis][1]; + } + xr_clip (xr, bg_clip); + cairo_set_source_rgb (xr->cairo, + cell->style->bg.r / 255., + cell->style->bg.g / 255., + cell->style->bg.b / 255.); + fill_rectangle (xr, + bb[H][0] - spill[H][0], + bb[V][0] - spill[V][0], + bb[H][1] + spill[H][1], + bb[V][1] + spill[V][1]); + cairo_restore (xr->cairo); + + cairo_save (xr->cairo); + cairo_set_source_rgb (xr->cairo, + cell->style->fg.r / 255., + cell->style->fg.g / 255., + cell->style->fg.b / 255.); - xr_layout_cell (xr, cell, bb, clip, &w, &h); + for (int axis = 0; axis < TABLE_N_AXES; axis++) + { + bb[axis][0] += px_to_xr (cell->style->margin[axis][0]); + bb[axis][1] -= px_to_xr (cell->style->margin[axis][1]); + } + if (bb[H][0] < bb[H][1] && bb[V][0] < bb[V][1]) + xr_layout_cell (xr, cell, bb, clip, &w, &h, &brk); + cairo_restore (xr->cairo); +} + +static int +xr_adjust_break (void *xr_, const struct table_cell *cell, + int width, int height) +{ + struct xr_driver *xr = xr_; + int bb[TABLE_N_AXES][2]; + int clip[TABLE_N_AXES][2]; + int w, h, brk; + + if (xr_measure_cell_height (xr_, cell, width) < height) + return -1; + + bb[H][0] = 0; + bb[H][1] = width - px_to_xr (cell->style->margin[H][0] + + cell->style->margin[H][1]); + if (bb[H][1] <= 0) + return 0; + bb[V][0] = 0; + bb[V][1] = height - px_to_xr (cell->style->margin[V][0] + + cell->style->margin[V][1]); + clip[H][0] = clip[H][1] = clip[V][0] = clip[V][1] = 0; + xr_layout_cell (xr, cell, bb, clip, &w, &h, &brk); + return brk; } static void -xr_layout_cell (struct xr_driver *xr, const struct table_cell *cell, - int bb[TABLE_N_AXES][2], int clip[TABLE_N_AXES][2], - int *width, int *height) +xr_clip (struct xr_driver *xr, int clip[TABLE_N_AXES][2]) +{ + if (clip[H][1] != INT_MAX || clip[V][1] != INT_MAX) + { + double x0 = xr_to_pt (clip[H][0] + xr->x); + double y0 = xr_to_pt (clip[V][0] + xr->y); + double x1 = xr_to_pt (clip[H][1] + xr->x); + double y1 = xr_to_pt (clip[V][1] + xr->y); + + cairo_rectangle (xr->cairo, x0, y0, x1 - x0, y1 - y0); + cairo_clip (xr->cairo); + } +} + +static void +add_attr_with_start (PangoAttrList *list, PangoAttribute *attr, guint start_index) +{ + attr->start_index = start_index; + pango_attr_list_insert (list, attr); +} + +static int +xr_layout_cell_text (struct xr_driver *xr, + const struct cell_contents *contents, + const struct cell_style *style, + int bb[TABLE_N_AXES][2], int clip[TABLE_N_AXES][2], + int *widthp, int *brk) { - struct xr_font *font; + unsigned int options = contents->options; + size_t length; int w, h; - font = (cell->options & TAB_FIX ? &xr->fonts[XR_FONT_FIXED] - : cell->options & TAB_EMPH ? &xr->fonts[XR_FONT_EMPHASIS] - : &xr->fonts[XR_FONT_PROPORTIONAL]); + struct xr_font *font = (options & TAB_FIX ? &xr->fonts[XR_FONT_FIXED] + : options & TAB_EMPH ? &xr->fonts[XR_FONT_EMPHASIS] + : &xr->fonts[XR_FONT_PROPORTIONAL]); + struct xr_font local_font; + if (style->font) + { + PangoFontDescription *desc = parse_font ( + style->font, + style->font_size ? style->font_size * 1000 * 72 / 128 : 10000, + style->bold, style->italic); + if (desc) + { + PangoLayout *layout = pango_cairo_create_layout (xr->cairo); + pango_layout_set_font_description (layout, desc); + + local_font.desc = desc; + local_font.layout = layout; + font = &local_font; + } + } + + int footnote_adjustment; + if (contents->n_footnotes == 0) + footnote_adjustment = 0; + else if (contents->n_footnotes == 1 && (options & TAB_HALIGN) == TAB_RIGHT) + { + PangoAttrList *attrs; + + const char *marker = contents->footnotes[0]->marker; + pango_layout_set_text (font->layout, marker, strlen (marker)); + + attrs = pango_attr_list_new (); + pango_attr_list_insert (attrs, pango_attr_rise_new (7000)); + pango_layout_set_attributes (font->layout, attrs); + pango_attr_list_unref (attrs); + + pango_layout_get_size (font->layout, &w, &h); + footnote_adjustment = MIN (w, px_to_xr (style->margin[H][1])); + } + else + footnote_adjustment = px_to_xr (style->margin[H][1]); + + length = strlen (contents->text); + if (footnote_adjustment) + { + PangoAttrList *attrs; + struct string s; + + bb[H][1] += footnote_adjustment; + + ds_init_empty (&s); + ds_extend (&s, length + contents->n_footnotes * 10); + ds_put_cstr (&s, contents->text); + cell_contents_format_footnote_markers (contents, &s); + pango_layout_set_text (font->layout, ds_cstr (&s), ds_length (&s)); + ds_destroy (&s); + + attrs = pango_attr_list_new (); + if (style->underline) + pango_attr_list_insert (attrs, pango_attr_underline_new ( + PANGO_UNDERLINE_SINGLE)); + add_attr_with_start (attrs, pango_attr_rise_new (7000), length); + add_attr_with_start ( + attrs, pango_attr_font_desc_new (font->desc), length); + pango_layout_set_attributes (font->layout, attrs); + pango_attr_list_unref (attrs); + } + else + { + pango_layout_set_text (font->layout, contents->text, -1); - pango_layout_set_text (font->layout, cell->contents, -1); + if (style->underline) + { + PangoAttrList *attrs = pango_attr_list_new (); + pango_attr_list_insert (attrs, pango_attr_underline_new ( + PANGO_UNDERLINE_SINGLE)); + pango_layout_set_attributes (font->layout, attrs); + pango_attr_list_unref (attrs); + } + } pango_layout_set_alignment ( font->layout, - ((cell->options & TAB_ALIGNMENT) == TAB_RIGHT ? PANGO_ALIGN_RIGHT - : (cell->options & TAB_ALIGNMENT) == TAB_LEFT ? PANGO_ALIGN_LEFT + ((options & TAB_HALIGN) == TAB_RIGHT ? PANGO_ALIGN_RIGHT + : (options & TAB_HALIGN) == TAB_LEFT ? PANGO_ALIGN_LEFT : PANGO_ALIGN_CENTER)); pango_layout_set_width ( font->layout, @@ -878,43 +1119,151 @@ xr_layout_cell (struct xr_driver *xr, const struct table_cell *cell, if (clip[H][0] != clip[H][1]) { cairo_save (xr->cairo); + xr_clip (xr, clip); + cairo_translate (xr->cairo, + xr_to_pt (bb[H][0] + xr->x), + xr_to_pt (bb[V][0] + xr->y)); + pango_cairo_show_layout (xr->cairo, font->layout); - if (clip[H][1] != INT_MAX || clip[V][1] != INT_MAX) + /* If enabled, this draws a blue rectangle around the extents of each + line of text, which can be rather useful for debugging layout + issues. */ + if (0) { - double x0 = xr_to_pt (clip[H][0]); - double y0 = xr_to_pt (clip[V][0] + xr->y); - double x1 = xr_to_pt (clip[H][1]); - double y1 = xr_to_pt (clip[V][1] + xr->y); - - cairo_rectangle (xr->cairo, x0, y0, x1 - x0, y1 - y0); - cairo_clip (xr->cairo); + PangoLayoutIter *iter; + iter = pango_layout_get_iter (font->layout); + do + { + PangoRectangle extents; + + pango_layout_iter_get_line_extents (iter, &extents, NULL); + cairo_save (xr->cairo); + cairo_set_source_rgb (xr->cairo, 1, 0, 0); + dump_rectangle (xr, + pango_to_xr (extents.x) - xr->x, + pango_to_xr (extents.y) - xr->y, + pango_to_xr (extents.x + extents.width) - xr->x, + pango_to_xr (extents.y + extents.height) - xr->y); + cairo_restore (xr->cairo); + } + while (pango_layout_iter_next_line (iter)); + pango_layout_iter_free (iter); } - cairo_translate (xr->cairo, - xr_to_pt (bb[H][0]), - xr_to_pt (bb[V][0] + xr->y)); - pango_cairo_show_layout (xr->cairo, font->layout); cairo_restore (xr->cairo); } pango_layout_get_size (font->layout, &w, &h); - *width = pango_to_xr (w); - *height = pango_to_xr (h); + w = pango_to_xr (w); + h = pango_to_xr (h); + if (w > *widthp) + *widthp = w; + if (bb[V][0] + h >= bb[V][1]) + { + PangoLayoutIter *iter; + int best UNUSED = 0; + + /* Choose a breakpoint between lines instead of in the middle of one. */ + iter = pango_layout_get_iter (font->layout); + do + { + PangoRectangle extents; + int y0, y1; + int bottom; + + pango_layout_iter_get_line_extents (iter, NULL, &extents); + pango_layout_iter_get_line_yrange (iter, &y0, &y1); + extents.x = pango_to_xr (extents.x); + extents.y = pango_to_xr (y0); + extents.width = pango_to_xr (extents.width); + extents.height = pango_to_xr (y1 - y0); + bottom = bb[V][0] + extents.y + extents.height; + if (bottom < bb[V][1]) + { + if (brk && clip[H][0] != clip[H][1]) + best = bottom; + if (brk) + *brk = bottom; + } + else + break; + } + while (pango_layout_iter_next_line (iter)); + pango_layout_iter_free (iter); + + /* If enabled, draws a green line across the chosen breakpoint, which can + be useful for debugging issues with breaking. */ + if (0) + { + if (best && !xr->nest) + dump_line (xr, -xr->left_margin, best, + xr->width + xr->right_margin, best, + RENDER_LINE_SINGLE, &CELL_COLOR (0, 255, 0)); + } + } + + pango_layout_set_attributes (font->layout, NULL); + + if (font == &local_font) + { + g_object_unref (G_OBJECT (font->layout)); + pango_font_description_free (font->desc); + } + + return bb[V][0] + h; } static void -xr_draw_title (struct xr_driver *xr, const char *title, - int title_width, int title_height) +xr_layout_cell (struct xr_driver *xr, const struct table_cell *cell, + int bb_[TABLE_N_AXES][2], int clip[TABLE_N_AXES][2], + int *width, int *height, int *brk) { - struct table_cell cell; int bb[TABLE_N_AXES][2]; + size_t i; - xr_init_caption_cell (title, &cell); - bb[H][0] = 0; - bb[H][1] = title_width; - bb[V][0] = 0; - bb[V][1] = title_height; - xr_draw_cell (xr, &cell, bb, bb); + *width = 0; + *height = 0; + if (brk) + *brk = 0; + + memcpy (bb, bb_, sizeof bb); + + /* If enabled, draws a blue rectangle around the cell extents, which can be + useful for debugging layout. */ + if (0) + { + if (clip[H][0] != clip[H][1]) + { + int offset = (xr->nest) * XR_POINT; + + cairo_save (xr->cairo); + cairo_set_source_rgb (xr->cairo, 0, 0, 1); + dump_rectangle (xr, + bb[H][0] + offset, bb[V][0] + offset, + bb[H][1] - offset, bb[V][1] - offset); + cairo_restore (xr->cairo); + } + } + + for (i = 0; i < cell->n_contents && bb[V][0] < bb[V][1]; i++) + { + const struct cell_contents *contents = &cell->contents[i]; + + if (brk) + *brk = bb[V][0]; + if (i > 0) + { + bb[V][0] += xr->char_height / 2; + if (bb[V][0] >= bb[V][1]) + break; + if (brk) + *brk = bb[V][0]; + } + + bb[V][0] = xr_layout_cell_text (xr, contents, cell->style, bb, clip, + width, brk); + } + *height = bb[V][0] - bb_[V][0]; } struct output_driver_factory pdf_driver_factory = @@ -939,10 +1288,8 @@ struct xr_rendering struct output_item *item; /* Table items. */ - struct render_page *page; + struct render_pager *p; struct xr_driver *xr; - int title_width; - int title_height; }; #define CHART_WIDTH 500 @@ -980,14 +1327,15 @@ xr_rendering_create_text (struct xr_driver *xr, const char *text, cairo_t *cr) struct table_item *table_item; struct xr_rendering *r; - table_item = table_item_create (table_from_string (TAB_LEFT, text), NULL); + table_item = table_item_create (table_from_string (TAB_LEFT, text), + NULL, NULL); r = xr_rendering_create (xr, &table_item->output_item, cr); table_item_unref (table_item); return r; } -void +void xr_rendering_apply_options (struct xr_rendering *xr, struct string_map *o) { if (is_table_item (xr->item)) @@ -1017,8 +1365,7 @@ xr_rendering_create (struct xr_driver *xr, const struct output_item *item, r->item = output_item_ref (item); r->xr = xr; xr_set_cairo (xr, cr); - r->page = xr_render_table_item (xr, to_table_item (item), - &r->title_width, &r->title_height); + r->p = render_pager_create (xr->params, to_table_item (item)); } else if (is_chart_item (item)) { @@ -1029,15 +1376,24 @@ xr_rendering_create (struct xr_driver *xr, const struct output_item *item, return r; } +void +xr_rendering_destroy (struct xr_rendering *r) +{ + if (r) + { + output_item_unref (r->item); + render_pager_destroy (r->p); + free (r); + } +} + void xr_rendering_measure (struct xr_rendering *r, int *w, int *h) { if (is_table_item (r->item)) { - int w0 = render_page_get_size (r->page, H); - int w1 = r->title_width; - *w = MAX (w0, w1) / XR_POINT; - *h = (render_page_get_size (r->page, V) + r->title_height) / XR_POINT; + *w = render_pager_get_size (r->p, H) / XR_POINT; + *h = render_pager_get_size (r->p, V) / XR_POINT; } else { @@ -1049,11 +1405,9 @@ xr_rendering_measure (struct xr_rendering *r, int *w, int *h) static void xr_draw_chart (const struct chart_item *, cairo_t *, double x, double y, double width, double height); -/* Draws onto CR at least the region of R that is enclosed in (X,Y)-(X+W,Y+H), - and possibly some additional parts. */ +/* Draws onto CR */ void -xr_rendering_draw (struct xr_rendering *r, cairo_t *cr, - int x, int y, int w, int h) +xr_rendering_draw_all (struct xr_rendering *r, cairo_t *cr) { if (is_table_item (r->item)) { @@ -1061,17 +1415,8 @@ xr_rendering_draw (struct xr_rendering *r, cairo_t *cr, xr_set_cairo (xr, cr); - if (r->title_height > 0) - { - xr->y = 0; - xr_draw_title (xr, table_item_get_caption (to_table_item (r->item)), - r->title_width, r->title_height); - } + render_pager_draw (r->p); - xr->y = r->title_height; - render_page_draw_region (r->page, - x * XR_POINT, (y * XR_POINT) - r->title_height, - w * XR_POINT, h * XR_POINT); } else xr_draw_chart (to_chart_item (r->item), cr, @@ -1096,12 +1441,16 @@ xr_draw_chart (const struct chart_item *chart_item, cairo_t *cr, xrchart_draw_np_plot (chart_item, cr, &geom); else if (is_piechart (chart_item)) xrchart_draw_piechart (chart_item, cr, &geom); + else if (is_barchart (chart_item)) + xrchart_draw_barchart (chart_item, cr, &geom); else if (is_roc_chart (chart_item)) xrchart_draw_roc (chart_item, cr, &geom); else if (is_scree (chart_item)) xrchart_draw_scree (chart_item, cr, &geom); else if (is_spreadlevel_plot_chart (chart_item)) xrchart_draw_spreadlevel (chart_item, cr, &geom); + else if (is_scatterplot_chart (chart_item)) + xrchart_draw_scatterplot (chart_item, cr, &geom); else NOT_REACHED (); xrchart_geometry_free (cr, &geom); @@ -1157,9 +1506,7 @@ struct xr_table_state { struct xr_render_fsm fsm; struct table_item *table_item; - struct render_break x_break; - struct render_break y_break; - int caption_height; + struct render_pager *p; }; static bool @@ -1167,46 +1514,20 @@ xr_table_render (struct xr_render_fsm *fsm, struct xr_driver *xr) { struct xr_table_state *ts = UP_CAST (fsm, struct xr_table_state, fsm); - for (;;) + while (render_pager_has_next (ts->p)) { - struct render_page *y_slice; - int space; - - while (!render_break_has_next (&ts->y_break)) - { - struct render_page *x_slice; + int used; - render_break_destroy (&ts->y_break); - if (!render_break_has_next (&ts->x_break)) - return false; - - x_slice = render_break_next (&ts->x_break, xr->width); - render_break_init (&ts->y_break, x_slice, V); - } - - space = xr->length - xr->y; - if (render_break_next_size (&ts->y_break) > space) + used = render_pager_draw_next (ts->p, xr->length - xr->y); + if (!used) { assert (xr->y > 0); return true; } - - y_slice = render_break_next (&ts->y_break, space); - if (ts->caption_height) - { - if (xr->cairo) - xr_draw_title (xr, table_item_get_caption (ts->table_item), - xr->width, ts->caption_height); - - xr->y += ts->caption_height; - ts->caption_height = 0; - } - - if (xr->cairo) - render_page_draw (y_slice); - xr->y += render_page_get_size (y_slice, V); - render_page_unref (y_slice); + else + xr->y += used; } + return false; } static void @@ -1215,8 +1536,7 @@ xr_table_destroy (struct xr_render_fsm *fsm) struct xr_table_state *ts = UP_CAST (fsm, struct xr_table_state, fsm); table_item_unref (ts->table_item); - render_break_destroy (&ts->x_break); - render_break_destroy (&ts->y_break); + render_pager_destroy (ts->p); free (ts); } @@ -1224,8 +1544,6 @@ static struct xr_render_fsm * xr_render_table (struct xr_driver *xr, const struct table_item *table_item) { struct xr_table_state *ts; - struct render_page *page; - int caption_width; ts = xmalloc (sizeof *ts); ts->fsm.render = xr_table_render; @@ -1235,12 +1553,7 @@ xr_render_table (struct xr_driver *xr, const struct table_item *table_item) if (xr->y > 0) xr->y += xr->char_height; - page = xr_render_table_item (xr, table_item, - &caption_width, &ts->caption_height); - xr->params->size[V] = xr->length - ts->caption_height; - - render_break_init (&ts->x_break, page, H); - render_break_init_empty (&ts->y_break); + ts->p = render_pager_create (xr->params, table_item); return &ts->fsm; } @@ -1256,13 +1569,20 @@ xr_chart_render (struct xr_render_fsm *fsm, struct xr_driver *xr) { struct xr_chart_state *cs = UP_CAST (fsm, struct xr_chart_state, fsm); - if (xr->y > 0) + const int chart_height = 0.8 * (xr->length < xr->width ? xr->length : xr->width); + + if (xr->y > xr->length - chart_height) return true; if (xr->cairo != NULL) - xr_draw_chart (cs->chart_item, xr->cairo, 0.0, 0.0, - xr_to_pt (xr->width), xr_to_pt (xr->length)); - xr->y = xr->length; + { + xr_draw_chart (cs->chart_item, xr->cairo, + 0.0, + xr_to_pt (xr->y), + xr_to_pt (xr->width), + xr_to_pt (chart_height)); + } + xr->y += chart_height; return false; } @@ -1314,13 +1634,23 @@ xr_render_eject (void) } static struct xr_render_fsm * -xr_create_text_renderer (struct xr_driver *xr, const char *text) +xr_create_text_renderer (struct xr_driver *xr, const struct text_item *item) { - struct table_item *table_item; - struct xr_render_fsm *fsm; - - table_item = table_item_create (table_from_string (TAB_LEFT, text), NULL); - fsm = xr_render_table (xr, table_item); + struct tab_table *tab = tab_create (1, 1); + + struct cell_style *style = pool_alloc (tab->container, sizeof *style); + *style = (struct cell_style) CELL_STYLE_INITIALIZER; + if (item->font) + style->font = pool_strdup (tab->container, item->font); + style->font_size = item->font_size; + style->bold = item->bold; + style->italic = item->italic; + style->underline = item->underline; + tab->styles[0] = style; + + tab_text (tab, 0, 0, TAB_LEFT, text_item_get_text (item)); + struct table_item *table_item = table_item_create (&tab->table, NULL, NULL); + struct xr_render_fsm *fsm = xr_render_table (xr, table_item); table_item_unref (table_item); return fsm; @@ -1358,7 +1688,7 @@ xr_render_text (struct xr_driver *xr, const struct text_item *text_item) break; default: - return xr_create_text_renderer (xr, text); + return xr_create_text_renderer (xr, text_item); } return NULL; @@ -1369,12 +1699,11 @@ xr_render_message (struct xr_driver *xr, const struct message_item *message_item) { const struct msg *msg = message_item_get_msg (message_item); - struct xr_render_fsm *fsm; - char *s; - - s = msg_to_string (msg, xr->command_name); - fsm = xr_create_text_renderer (xr, s); + char *s = msg_to_string (msg, message_item->command_name); + struct text_item *item = text_item_create (TEXT_ITEM_PARAGRAPH, s); free (s); + struct xr_render_fsm *fsm = xr_create_text_renderer (xr, item); + text_item_unref (item); return fsm; }