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geany/src/printing.c
Colomban Wendling d06e9f4575 Remove $Id$ and $Date$ SVN keywords
2011-10-09 22:57:35 +02:00

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/*
* printing.c - this file is part of Geany, a fast and lightweight IDE
*
* Copyright 2007-2011 Enrico Tröger <enrico(dot)troeger(at)uvena(dot)de>
* Copyright 2007-2011 Nick Treleaven <nick(dot)treleaven(at)btinternet(dot)com>
*
* 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
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
/*
* GTK printing support
* (basic code layout were adopted from Sylpheed's printing implementation, thanks)
*/
#include <math.h>
#include <time.h>
#include <string.h>
#include "geany.h"
#include "printing.h"
#include "document.h"
#include "sciwrappers.h"
#include "editor.h"
#include "sciwrappers.h"
#include "utils.h"
#include "support.h"
#include "dialogs.h"
#include "utils.h"
#include "ui_utils.h"
#include "msgwindow.h"
PrintingPrefs printing_prefs;
#define ROTATE_RGB(color) \
(((color) & 0xFF0000) >> 16) + ((color) & 0x00FF00) + (((color) & 0x0000FF) << 16)
#define ADD_ATTR(l, a) \
pango_attr_list_insert((l), (a)); \
(a)->start_index = 0; \
(a)->end_index = -1;
enum
{
FORE = 0,
BACK,
BOLD,
ITALIC,
MAX_TYPES
};
/* document-related variables */
typedef struct
{
GeanyDocument *doc;
gint font_width;
gint lines;
gint n_pages;
gint lines_per_page;
gint max_line_number_margin;
gint cur_line;
gint cur_pos;
gint styles[STYLE_MAX + 1][MAX_TYPES];
gdouble line_height;
/* whether we have a wrapped line on page end to take care of on next page */
gboolean long_line;
/* set in begin_print() to hold the time when printing was started to ensure all printed
* pages have the same date and time (in case of slow machines and many pages where rendering
* takes more than a second) */
time_t print_time;
PangoLayout *layout; /* commonly used layout object */
} DocInfo;
/* widget references for the custom widget in the print dialog */
typedef struct
{
GtkWidget *check_print_linenumbers;
GtkWidget *check_print_pagenumbers;
GtkWidget *check_print_pageheader;
GtkWidget *check_print_basename;
GtkWidget *entry_print_dateformat;
} PrintWidgets;
static GtkPrintSettings *settings = NULL;
static GtkPageSetup *page_setup = NULL;
/* returns the "width" (count of needed characters) for the given number */
static gint get_line_numbers_arity(gint x)
{
gint a = 0;
while ((x /= 10) != 0)
a++;
return a;
}
/* split a RGB colour into the three colour components */
static void get_rgb_values(gint c, gint *r, gint *g, gint *b)
{
c = ROTATE_RGB(c);
if (interface_prefs.highlighting_invert_all)
c = utils_invert_color(c);
*r = c % 256;
*g = (c & - 16711936) / 256;
*b = (c & 0xff0000) / 65536;
*r *= 257;
*g *= 257;
*b *= 257;
}
/* creates a commonly used layout object from the given context for use in get_page_count and
* draw_page */
static PangoLayout *setup_pango_layout(GtkPrintContext *context, PangoFontDescription *desc)
{
PangoLayout *layout;
layout = gtk_print_context_create_pango_layout(context);
pango_layout_set_wrap(layout, PANGO_WRAP_WORD_CHAR);
pango_layout_set_spacing(layout, 0);
pango_layout_set_attributes(layout, NULL);
pango_layout_set_font_description(layout, desc);
return layout;
}
static gboolean utils_font_desc_check_monospace(PangoContext *pc, PangoFontDescription *desc)
{
PangoFontFamily **families;
gint n_families, i;
const gchar *font;
gboolean ret = TRUE;
font = pango_font_description_get_family(desc);
pango_context_list_families(pc, &families, &n_families);
for (i = 0; i < n_families; i++)
{
if (utils_str_equal(font, pango_font_family_get_name(families[i])))
{
if (!pango_font_family_is_monospace(families[i]))
{
ret = FALSE;
}
}
}
g_free(families);
return ret;
}
/* We don't support variable width fonts (yet) */
static gint get_font_width(GtkPrintContext *context, PangoFontDescription *desc)
{
PangoContext *pc;
PangoFontMetrics *metrics;
gint width;
pc = gtk_print_context_create_pango_context(context);
if (!utils_font_desc_check_monospace(pc, desc))
dialogs_show_msgbox_with_secondary(GTK_MESSAGE_WARNING,
_("The editor font is not a monospaced font!"),
_("Text will be wrongly spaced."));
metrics = pango_context_get_metrics(pc, desc, pango_context_get_language(pc));
/** TODO is this the best result we can get? */
/* digit and char width are mostly equal for monospace fonts, char width might be
* for dual width characters(e.g. Japanese) so use digit width to get sure we get the width
* for one character */
width = pango_font_metrics_get_approximate_digit_width(metrics) / PANGO_SCALE;
pango_font_metrics_unref(metrics);
g_object_unref(pc);
return width;
}
static gint get_page_count(GtkPrintContext *context, DocInfo *dinfo)
{
gdouble width, height;
gint layout_h;
gint i, j, lines_left;
gchar *line_buf;
if (dinfo == NULL)
return -1;
width = gtk_print_context_get_width(context);
height = gtk_print_context_get_height(context);
if (printing_prefs.print_line_numbers)
/* remove line number margin space from overall width */
width -= dinfo->max_line_number_margin * dinfo->font_width;
pango_layout_set_width(dinfo->layout, width * PANGO_SCALE);
/* add test text to get line height */
pango_layout_set_text(dinfo->layout, "Test 1", -1);
pango_layout_get_size(dinfo->layout, NULL, &layout_h);
if (layout_h <= 0)
{
geany_debug("Invalid layout_h (%d). Falling back to default height (%d)",
layout_h, 100 * PANGO_SCALE);
layout_h = 100 * PANGO_SCALE;
}
dinfo->line_height = (gdouble)layout_h / PANGO_SCALE;
dinfo->lines_per_page = ceil((height - dinfo->line_height) / dinfo->line_height);
#ifdef GEANY_PRINT_DEBUG
geany_debug("max lines_per_page: %d", dinfo->lines_per_page);
#endif
if (printing_prefs.print_page_numbers)
dinfo->lines_per_page -= 2;
if (printing_prefs.print_page_header)
dinfo->lines_per_page -= 3;
lines_left = dinfo->lines_per_page;
i = 0;
for (j = 0; j < dinfo->lines; j++)
{
gint lines = 1;
gint line_width;
line_buf = sci_get_line(dinfo->doc->editor->sci, j);
line_width = (g_utf8_strlen(line_buf, -1) + 1) * dinfo->font_width;
if (line_width > width)
lines = ceil(line_width / width);
#ifdef GEANY_PRINT_DEBUG
if (lines != 1) geany_debug("%d %d", j+1, lines);
#endif
while (lines_left < lines)
{
lines -= lines_left;
lines_left = dinfo->lines_per_page;
i++;
}
lines_left -= lines;
g_free(line_buf);
}
return i + 1;
}
static void add_page_header(DocInfo *dinfo, cairo_t *cr, gint width, gint page_nr)
{
gint ph_height = dinfo->line_height * 3;
gchar *data;
gchar *datetime;
gchar *tmp_file_name = (dinfo->doc->file_name != NULL) ?
dinfo->doc->file_name : GEANY_STRING_UNTITLED;
gchar *file_name = (printing_prefs.page_header_basename) ?
g_path_get_basename(tmp_file_name) : g_strdup(tmp_file_name);
PangoLayout *layout = dinfo->layout;
/* draw the frame */
cairo_set_line_width(cr, 0.3);
cairo_set_source_rgb(cr, 0, 0, 0);
cairo_rectangle(cr, 2, 2, width - 4, ph_height - 4);
cairo_stroke(cr);
/* width - 8: 2px between doc border and frame border, 2px between frame border and text
* and this on left and right side, so (2 + 2) * 2 */
pango_layout_set_width(layout, (width - 8) * PANGO_SCALE);
if ((g_utf8_strlen(file_name, -1) * dinfo->font_width) >= ((width - 4) - (dinfo->font_width * 2)))
/* if the filename is wider than the available space on the line, skip parts of it */
pango_layout_set_ellipsize(layout, PANGO_ELLIPSIZE_MIDDLE);
data = g_strdup_printf("<b>%s</b>", file_name);
pango_layout_set_markup(layout, data, -1);
pango_layout_set_alignment(layout, PANGO_ALIGN_LEFT);
cairo_move_to(cr, 4, dinfo->line_height * 0.5);
pango_cairo_show_layout(cr, layout);
g_free(data);
g_free(file_name);
data = g_strdup_printf(_("<b>Page %d of %d</b>"), page_nr + 1, dinfo->n_pages);
pango_layout_set_markup(layout, data, -1);
pango_layout_set_alignment(layout, PANGO_ALIGN_LEFT);
cairo_move_to(cr, 4, dinfo->line_height * 1.5);
pango_cairo_show_layout(cr, layout);
g_free(data);
datetime = utils_get_date_time(printing_prefs.page_header_datefmt, &(dinfo->print_time));
if (G_LIKELY(NZV(datetime)))
{
data = g_strdup_printf("<b>%s</b>", datetime);
pango_layout_set_markup(layout, data, -1);
pango_layout_set_alignment(layout, PANGO_ALIGN_RIGHT);
cairo_move_to(cr, 2, dinfo->line_height * 1.5);
pango_cairo_show_layout(cr, layout);
g_free(data);
}
g_free(datetime);
/* reset layout and re-position cairo context */
pango_layout_set_alignment(layout, PANGO_ALIGN_LEFT);
pango_layout_set_ellipsize(layout, FALSE);
pango_layout_set_justify(layout, FALSE);
pango_layout_set_width(layout, width * PANGO_SCALE);
cairo_move_to(cr, 0, dinfo->line_height * 3);
}
static void custom_widget_apply(GtkPrintOperation *operation, GtkWidget *widget, gpointer user_data)
{
PrintWidgets *w = user_data;
printing_prefs.print_line_numbers =
gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(w->check_print_linenumbers));
printing_prefs.print_page_numbers =
gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(w->check_print_pagenumbers));
printing_prefs.print_page_header =
gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(w->check_print_pageheader));
printing_prefs.page_header_basename =
gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(w->check_print_basename));
g_free(printing_prefs.page_header_datefmt);
printing_prefs.page_header_datefmt =
g_strdup(gtk_entry_get_text(GTK_ENTRY(w->entry_print_dateformat)));
}
static void on_page_header_toggled(GtkToggleButton *togglebutton, gpointer user_data)
{
gboolean sens = gtk_toggle_button_get_active(togglebutton);
PrintWidgets *w = user_data;
gtk_widget_set_sensitive(w->check_print_basename, sens);
gtk_widget_set_sensitive(w->entry_print_dateformat, sens);
}
static GtkWidget *create_custom_widget(GtkPrintOperation *operation, gpointer user_data)
{ /* copied from interface.c */
GtkWidget *page;
GtkWidget *frame33;
GtkWidget *alignment36;
GtkWidget *vbox30;
GtkWidget *hbox10;
GtkWidget *label203;
PrintWidgets *w = user_data;
gtk_print_operation_set_custom_tab_label(operation, _("Document Setup"));
page = gtk_vbox_new(FALSE, 0);
gtk_container_set_border_width(GTK_CONTAINER(page), 5);
w->check_print_linenumbers = gtk_check_button_new_with_mnemonic(_("Print line numbers"));
gtk_box_pack_start(GTK_BOX(page), w->check_print_linenumbers, FALSE, FALSE, 0);
gtk_widget_set_tooltip_text(w->check_print_linenumbers, _("Add line numbers to the printed page"));
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(w->check_print_linenumbers), printing_prefs.print_line_numbers);
w->check_print_pagenumbers = gtk_check_button_new_with_mnemonic(_("Print page numbers"));
gtk_box_pack_start(GTK_BOX(page), w->check_print_pagenumbers, FALSE, FALSE, 0);
gtk_widget_set_tooltip_text(w->check_print_pagenumbers, _("Add page numbers at the bottom of each page. It takes 2 lines of the page."));
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(w->check_print_pagenumbers), printing_prefs.print_page_numbers);
w->check_print_pageheader = gtk_check_button_new_with_mnemonic(_("Print page header"));
gtk_box_pack_start(GTK_BOX(page), w->check_print_pageheader, FALSE, FALSE, 0);
gtk_widget_set_tooltip_text(w->check_print_pageheader, _("Add a little header to every page containing the page number, the filename and the current date (see below). It takes 3 lines of the page."));
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(w->check_print_pageheader), printing_prefs.print_page_header);
g_signal_connect(w->check_print_pageheader, "toggled", G_CALLBACK(on_page_header_toggled), w);
frame33 = gtk_frame_new(NULL);
gtk_box_pack_start(GTK_BOX(page), frame33, FALSE, FALSE, 0);
gtk_frame_set_label_align(GTK_FRAME(frame33), 0, 0);
gtk_frame_set_shadow_type(GTK_FRAME(frame33), GTK_SHADOW_NONE);
alignment36 = gtk_alignment_new(0, 0.5, 1, 1);
gtk_container_add(GTK_CONTAINER(frame33), alignment36);
gtk_alignment_set_padding(GTK_ALIGNMENT(alignment36), 0, 0, 12, 0);
vbox30 = gtk_vbox_new(FALSE, 1);
gtk_container_add(GTK_CONTAINER(alignment36), vbox30);
w->check_print_basename = gtk_check_button_new_with_mnemonic(_("Use the basename of the printed file"));
gtk_box_pack_start(GTK_BOX(vbox30), w->check_print_basename, FALSE, FALSE, 0);
gtk_widget_set_tooltip_text(w->check_print_basename, _("Print only the basename(without the path) of the printed file"));
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(w->check_print_basename), printing_prefs.page_header_basename);
hbox10 = gtk_hbox_new(FALSE, 5);
gtk_box_pack_start(GTK_BOX(vbox30), hbox10, TRUE, TRUE, 0);
label203 = gtk_label_new(_("Date format:"));
gtk_box_pack_start(GTK_BOX(hbox10), label203, FALSE, FALSE, 0);
w->entry_print_dateformat = gtk_entry_new();
ui_entry_add_clear_icon(GTK_ENTRY(w->entry_print_dateformat));
gtk_box_pack_start(GTK_BOX(hbox10), w->entry_print_dateformat, TRUE, TRUE, 0);
gtk_widget_set_tooltip_text(w->entry_print_dateformat, _("Specify a format for the date and time stamp which is added to the page header on each page. You can use any conversion specifiers which can be used with the ANSI C strftime function."));
gtk_entry_set_text(GTK_ENTRY(w->entry_print_dateformat), printing_prefs.page_header_datefmt);
on_page_header_toggled(GTK_TOGGLE_BUTTON(w->check_print_pageheader), w);
gtk_widget_show_all(page);
return page;
}
static void end_print(GtkPrintOperation *operation, GtkPrintContext *context, gpointer user_data)
{
DocInfo *dinfo = user_data;
if (dinfo == NULL)
return;
gtk_widget_hide(main_widgets.progressbar);
g_object_unref(dinfo->layout);
}
static void begin_print(GtkPrintOperation *operation, GtkPrintContext *context, gpointer user_data)
{
DocInfo *dinfo = user_data;
PangoFontDescription *desc;
gint i;
gint style_max;
if (dinfo == NULL)
return;
gtk_widget_show(main_widgets.progressbar);
desc = pango_font_description_from_string(interface_prefs.editor_font);
/* init dinfo fields */
dinfo->lines = sci_get_line_count(dinfo->doc->editor->sci);
dinfo->lines_per_page = 0;
dinfo->cur_line = 0;
dinfo->cur_pos = 0;
dinfo->long_line = FALSE;
dinfo->print_time = time(NULL);
dinfo->max_line_number_margin = get_line_numbers_arity(dinfo->lines) + 1;
/* increase font width by 1 (looks better) */
dinfo->font_width = get_font_width(context, desc) + 1;
/* create a PangoLayout to be commonly used in get_page_count and draw_page */
dinfo->layout = setup_pango_layout(context, desc);
/* this is necessary because of possible line breaks on the printed page and then
* lines_per_page differs from document line count */
dinfo->n_pages = get_page_count(context, dinfo);
/* read all styles from Scintilla */
style_max = pow(2, scintilla_send_message(dinfo->doc->editor->sci, SCI_GETSTYLEBITS, 0, 0));
/* if the lexer uses only the first 32 styles(style bits = 5),
* we need to add the pre-defined styles */
if (style_max == 32)
style_max = STYLE_LASTPREDEFINED;
for (i = 0; i < style_max; i++)
{
dinfo->styles[i][FORE] = ROTATE_RGB(scintilla_send_message(
dinfo->doc->editor->sci, SCI_STYLEGETFORE, i, 0));
if (i == STYLE_LINENUMBER)
{ /* ignore background colour for line number margin to avoid trouble with wrapped lines */
dinfo->styles[STYLE_LINENUMBER][BACK] = ROTATE_RGB(scintilla_send_message(
dinfo->doc->editor->sci, SCI_STYLEGETBACK, STYLE_DEFAULT, 0));
}
else
{
dinfo->styles[i][BACK] = ROTATE_RGB(scintilla_send_message(
dinfo->doc->editor->sci, SCI_STYLEGETBACK, i, 0));
}
/* use white background color unless foreground is white to save ink */
if (dinfo->styles[i][FORE] != 0xffffff)
dinfo->styles[i][BACK] = 0xffffff;
dinfo->styles[i][BOLD] =
scintilla_send_message(dinfo->doc->editor->sci, SCI_STYLEGETBOLD, i, 0);
dinfo->styles[i][ITALIC] =
scintilla_send_message(dinfo->doc->editor->sci, SCI_STYLEGETITALIC, i, 0);
}
if (dinfo->n_pages >= 0)
gtk_print_operation_set_n_pages(operation, dinfo->n_pages);
pango_font_description_free(desc);
}
static void draw_page(GtkPrintOperation *operation, GtkPrintContext *context,
gint page_nr, gpointer user_data)
{
DocInfo *dinfo = user_data;
GeanyEditor *editor;
cairo_t *cr;
gdouble width, height;
gdouble x = 0.0, y = 0.0;
/*gint layout_h;*/
gint count;
GString *str;
if (dinfo == NULL || page_nr >= dinfo->n_pages)
return;
editor = dinfo->doc->editor;
if (dinfo->n_pages > 0)
{
gdouble fraction = (page_nr + 1) / (gdouble) dinfo->n_pages;
gchar *text = g_strdup_printf(_("Page %d of %d"), page_nr, dinfo->n_pages);
gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(main_widgets.progressbar), fraction);
gtk_progress_bar_set_text(GTK_PROGRESS_BAR(main_widgets.progressbar), text);
g_free(text);
}
#ifdef GEANY_PRINT_DEBUG
geany_debug("draw_page = %d, pages = %d, (real) lines_per_page = %d",
page_nr, dinfo->n_pages, dinfo->lines_per_page);
#endif
str = g_string_sized_new(256);
cr = gtk_print_context_get_cairo_context(context);
width = gtk_print_context_get_width(context);
height = gtk_print_context_get_height(context);
cairo_set_source_rgb(cr, 0, 0, 0);
#ifdef GEANY_PRINT_DEBUG
cairo_set_line_width(cr, 0.2);
cairo_rectangle(cr, 0, 0, width, height);
cairo_stroke(cr);
#endif
cairo_move_to(cr, 0, 0);
pango_layout_set_width(dinfo->layout, width * PANGO_SCALE);
pango_layout_set_alignment(dinfo->layout, PANGO_ALIGN_LEFT);
pango_layout_set_ellipsize(dinfo->layout, FALSE);
pango_layout_set_justify(dinfo->layout, FALSE);
if (printing_prefs.print_page_header)
add_page_header(dinfo, cr, width, page_nr);
count = 0; /* the actual line counter for the current page, might be different from
* dinfo->cur_line due to possible line breaks */
while (count < dinfo->lines_per_page)
{
gchar c = 'a';
gint style = -1;
PangoAttrList *layout_attr;
PangoAttribute *attr;
gint colours[3] = { 0 };
gboolean add_linenumber = TRUE;
gboolean at_eol;
while (count < dinfo->lines_per_page && c != '\0')
{
at_eol = FALSE;
g_string_erase(str, 0, str->len); /* clear the string */
/* line numbers */
if (printing_prefs.print_line_numbers && add_linenumber)
{
/* if we had a wrapped line on the last page which needs to be continued, don't
* add a line number */
if (dinfo->long_line)
{
add_linenumber = FALSE;
}
else
{
gchar *line_number = NULL;
gint cur_line_number_margin = get_line_numbers_arity(dinfo->cur_line + 1);
gchar *fill = g_strnfill(
dinfo->max_line_number_margin - cur_line_number_margin - 1, ' ');
line_number = g_strdup_printf("%s%d ", fill, dinfo->cur_line + 1);
g_string_append(str, line_number);
dinfo->cur_line++; /* increase document line */
add_linenumber = FALSE;
style = STYLE_LINENUMBER;
c = 'a'; /* dummy value */
g_free(fill);
g_free(line_number);
}
}
/* data */
else
{
style = sci_get_style_at(dinfo->doc->editor->sci, dinfo->cur_pos);
c = sci_get_char_at(dinfo->doc->editor->sci, dinfo->cur_pos);
if (c == '\0' || style == -1)
{ /* if c gets 0, we are probably out of document boundaries,
* so stop to break out of outer loop */
count = dinfo->lines_per_page;
break;
}
dinfo->cur_pos++;
/* convert tabs to spaces which seems to be better than using Pango tabs */
if (c == '\t')
{
gint tab_width = sci_get_tab_width(editor->sci);
gchar *s = g_strnfill(tab_width, ' ');
g_string_append(str, s);
g_free(s);
}
/* don't add line breaks, they are handled manually below */
else if (c == '\r' || c == '\n')
{
gchar c_next = sci_get_char_at(dinfo->doc->editor->sci, dinfo->cur_pos);
at_eol = TRUE;
if (c == '\r' && c_next == '\n')
dinfo->cur_pos++; /* skip LF part of CR/LF */
}
else
{
g_string_append_c(str, c); /* finally add the character */
/* handle UTF-8: since we add char by char (better: byte by byte), we need to
* keep UTF-8 characters together(e.g. two bytes for one character)
* the input is always UTF-8 and c is signed, so all non-Ascii
* characters are less than 0 and consist of all bytes less than 0.
* style doesn't change since it is only one character with multiple bytes. */
while (c < 0)
{
c = sci_get_char_at(dinfo->doc->editor->sci, dinfo->cur_pos);
if (c < 0)
{ /* only add the byte when it is part of the UTF-8 character
* otherwise we could add e.g. a '\n' and it won't be visible in the
* printed document */
g_string_append_c(str, c);
dinfo->cur_pos++;
}
}
}
}
if (! at_eol)
{
/* set text */
pango_layout_set_text(dinfo->layout, str->str, -1);
/* attributes */
layout_attr = pango_attr_list_new();
/* foreground colour */
get_rgb_values(dinfo->styles[style][FORE], &colours[0], &colours[1], &colours[2]);
attr = pango_attr_foreground_new(colours[0], colours[1], colours[2]);
ADD_ATTR(layout_attr, attr);
/* background colour */
get_rgb_values(dinfo->styles[style][BACK], &colours[0], &colours[1], &colours[2]);
attr = pango_attr_background_new(colours[0], colours[1], colours[2]);
ADD_ATTR(layout_attr, attr);
/* bold text */
if (dinfo->styles[style][BOLD])
{
attr = pango_attr_weight_new(PANGO_WEIGHT_BOLD);
ADD_ATTR(layout_attr, attr);
}
/* italic text */
if (dinfo->styles[style][ITALIC])
{
attr = pango_attr_style_new(PANGO_STYLE_ITALIC);
ADD_ATTR(layout_attr, attr);
}
pango_layout_set_attributes(dinfo->layout, layout_attr);
pango_layout_context_changed(dinfo->layout);
pango_attr_list_unref(layout_attr);
}
cairo_get_current_point(cr, &x, &y);
/* normal line break at eol character in document */
if (at_eol)
{
/*pango_layout_get_size(dinfo->layout, NULL, &layout_h);*/
/*cairo_move_to(cr, 0, y + (gdouble)layout_h / PANGO_SCALE);*/
cairo_move_to(cr, 0, y + dinfo->line_height);
count++;
/* we added a new document line so request a new line number */
add_linenumber = TRUE;
}
else
{
gint x_offset = 0;
/* maybe we need to force a line break because of too long line */
if (x >= (width - dinfo->font_width))
{
/* don't start the line at horizontal origin because we need to skip the
* line number margin */
if (printing_prefs.print_line_numbers)
{
x_offset = (dinfo->max_line_number_margin + 1) * dinfo->font_width;
}
/*pango_layout_get_size(dinfo->layout, NULL, &layout_h);*/
/*cairo_move_to(cr, x_offset, y + (gdouble)layout_h / PANGO_SCALE);*/
/* this is faster but not exactly the same as above */
cairo_move_to(cr, x_offset, y + dinfo->line_height);
cairo_get_current_point(cr, &x, &y);
count++;
}
if (count < dinfo->lines_per_page)
{
/* str->len is counted in bytes not characters, so use g_utf8_strlen() */
x_offset = (g_utf8_strlen(str->str, -1) * dinfo->font_width);
if (dinfo->long_line && count == 0)
{
x_offset = (dinfo->max_line_number_margin + 1) * dinfo->font_width;
dinfo->long_line = FALSE;
}
pango_cairo_show_layout(cr, dinfo->layout);
cairo_move_to(cr, x + x_offset, y);
}
else
/* we are on a wrapped line but we are out of lines on this page, so continue
* the current line on the next page and remember to continue in current line */
dinfo->long_line = TRUE;
}
}
}
if (printing_prefs.print_line_numbers)
{ /* print a thin line between the line number margin and the data */
gint y_start = 0;
if (printing_prefs.print_page_header)
y_start = (dinfo->line_height * 3) - 2; /* "- 2": to connect the line number line to
* the page header frame */
cairo_set_line_width(cr, 0.3);
cairo_move_to(cr, (dinfo->max_line_number_margin * dinfo->font_width) + 1, y_start);
cairo_line_to(cr, (dinfo->max_line_number_margin * dinfo->font_width) + 1,
y + dinfo->line_height); /* y is last added line, we reuse it */
cairo_stroke(cr);
}
if (printing_prefs.print_page_numbers)
{
gchar *line = g_strdup_printf("<small>- %d -</small>", page_nr + 1);
pango_layout_set_markup(dinfo->layout, line, -1);
pango_layout_set_alignment(dinfo->layout, PANGO_ALIGN_CENTER);
cairo_move_to(cr, 0, height - dinfo->line_height);
pango_cairo_show_layout(cr, dinfo->layout);
g_free(line);
#ifdef GEANY_PRINT_DEBUG
cairo_set_line_width(cr, 0.3);
cairo_move_to(cr, 0, height - (1.25 * dinfo->line_height));
cairo_line_to(cr, width - 1, height - (1.25 * dinfo->line_height));
cairo_stroke(cr);
#endif
}
g_string_free(str, TRUE);
}
static void status_changed(GtkPrintOperation *op, gpointer data)
{
gchar *filename = (data != NULL) ? data : GEANY_STRING_UNTITLED;
if (gtk_print_operation_get_status(op) == GTK_PRINT_STATUS_FINISHED_ABORTED)
msgwin_status_add(_("Did not send document %s to the printing subsystem."), filename);
else if (gtk_print_operation_get_status(op) == GTK_PRINT_STATUS_FINISHED)
msgwin_status_add(_("Document %s was sent to the printing subsystem."), filename);
}
static void printing_print_gtk(GeanyDocument *doc)
{
GtkPrintOperation *op;
GtkPrintOperationResult res = GTK_PRINT_OPERATION_RESULT_ERROR;
GError *error = NULL;
DocInfo *dinfo;
PrintWidgets *widgets;
/** TODO check for monospace font, detect the widest character in the font and
* use it at font_width */
widgets = g_new0(PrintWidgets, 1);
dinfo = g_new0(DocInfo, 1);
/* all other fields are initialised in begin_print() */
dinfo->doc = doc;
op = gtk_print_operation_new();
gtk_print_operation_set_unit(op, GTK_UNIT_POINTS);
gtk_print_operation_set_show_progress(op, TRUE);
#if GTK_CHECK_VERSION(2, 18, 0)
gtk_print_operation_set_embed_page_setup(op, TRUE);
#endif
g_signal_connect(op, "begin-print", G_CALLBACK(begin_print), dinfo);
g_signal_connect(op, "end-print", G_CALLBACK(end_print), dinfo);
g_signal_connect(op, "draw-page", G_CALLBACK(draw_page), dinfo);
g_signal_connect(op, "status-changed", G_CALLBACK(status_changed), doc->file_name);
g_signal_connect(op, "create-custom-widget", G_CALLBACK(create_custom_widget), widgets);
g_signal_connect(op, "custom-widget-apply", G_CALLBACK(custom_widget_apply), widgets);
if (settings != NULL)
gtk_print_operation_set_print_settings(op, settings);
if (page_setup != NULL)
gtk_print_operation_set_default_page_setup(op, page_setup);
res = gtk_print_operation_run(
op, GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG, GTK_WINDOW(main_widgets.window), &error);
if (res == GTK_PRINT_OPERATION_RESULT_APPLY)
{
if (settings != NULL)
g_object_unref(settings);
settings = g_object_ref(gtk_print_operation_get_print_settings(op));
/* status message is printed in the status-changed handler */
}
else if (res == GTK_PRINT_OPERATION_RESULT_ERROR)
{
dialogs_show_msgbox(GTK_MESSAGE_ERROR, _("Printing of %s failed (%s)."),
doc->file_name, error->message);
g_error_free(error);
}
g_object_unref(op);
g_free(dinfo);
g_free(widgets);
}
void printing_page_setup_gtk(void)
{
GtkPageSetup *new_page_setup;
if (settings == NULL)
settings = gtk_print_settings_new();
new_page_setup = gtk_print_run_page_setup_dialog(
GTK_WINDOW(main_widgets.window), page_setup, settings);
if (page_setup != NULL)
g_object_unref(page_setup);
page_setup = new_page_setup;
}
/* simple file print using an external tool */
static void print_external(GeanyDocument *doc)
{
gchar *cmdline;
if (doc->file_name == NULL)
return;
if (! NZV(printing_prefs.external_print_cmd))
{
dialogs_show_msgbox(GTK_MESSAGE_ERROR,
_("Please set a print command in the preferences dialog first."));
return;
}
cmdline = g_strdup(printing_prefs.external_print_cmd);
utils_str_replace_all(&cmdline, "%f", doc->file_name);
if (dialogs_show_question(
_("The file \"%s\" will be printed with the following command:\n\n%s"),
doc->file_name, cmdline))
{
GError *error = NULL;
#ifdef G_OS_WIN32
gchar *tmp_cmdline = g_strdup(cmdline);
#else
/* /bin/sh -c emulates the system() call and makes complex commands possible
* but only needed on non-win32 systems due to the lack of win32's shell capabilities */
gchar *tmp_cmdline = g_strconcat("/bin/sh -c \"", cmdline, "\"", NULL);
#endif
if (! g_spawn_command_line_async(tmp_cmdline, &error))
{
dialogs_show_msgbox(GTK_MESSAGE_ERROR,
_("Printing of \"%s\" failed (return code: %s)."),
doc->file_name, error->message);
g_error_free(error);
}
else
{
msgwin_status_add(_("File %s printed."), doc->file_name);
}
g_free(tmp_cmdline);
}
g_free(cmdline);
}
void printing_print_doc(GeanyDocument *doc)
{
if (doc == NULL)
return;
if (printing_prefs.use_gtk_printing)
printing_print_gtk(doc);
else
print_external(doc);
}
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