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netsurf/desktop/print.c
Vincent Sanders 75018632a9 Use coccinelle to change logging macro calls in c files 
for F in $(git ls-files '*.c');do spatch --sp-file foo.cocci --in-place ${F};done

@@ expression E; @@
-LOG(E);
+NSLOG(netsurf, INFO, E);
@@ expression E, E1; @@
-LOG(E, E1);
+NSLOG(netsurf, INFO, E, E1);
@@ expression E, E1, E2; @@
-LOG(E, E1, E2);
+NSLOG(netsurf, INFO, E, E1, E2);
@@ expression E, E1, E2, E3; @@
-LOG(E, E1, E2, E3);
+NSLOG(netsurf, INFO, E, E1, E2, E3);
@@ expression E, E1, E2, E3, E4; @@
-LOG(E, E1, E2, E3, E4);
+NSLOG(netsurf, INFO, E, E1, E2, E3, E4);
@@ expression E, E1, E2, E3, E4, E5; @@
-LOG(E, E1, E2, E3, E4, E5);
+NSLOG(netsurf, INFO, E, E1, E2, E3, E4, E5);
@@ expression E, E1, E2, E3, E4, E5, E6; @@
-LOG(E, E1, E2, E3, E4, E5, E6);
+NSLOG(netsurf, INFO, E, E1, E2, E3, E4, E5, E6);
@@ expression E, E1, E2, E3, E4, E5, E6, E7; @@
-LOG(E, E1, E2, E3, E4, E5, E6, E7);
+NSLOG(netsurf, INFO, E, E1, E2, E3, E4, E5, E6, E7);
2017-09-06 18:45:27 +01:00

333 lines
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/*
* Copyright 2008 Adam Blokus <adamblokus@gmail.com>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf 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; version 2 of the License.
*
* NetSurf 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, see <http://www.gnu.org/licenses/>.
*/
/** \file
* Implementation of paginated output.
*/
#include "utils/config.h"
#include <assert.h>
#include <string.h>
#include <dom/dom.h>
#include "utils/utils.h"
#include "utils/nsoption.h"
#include "utils/log.h"
#include "utils/talloc.h"
#include "netsurf/content.h"
#include "netsurf/plotters.h"
#include "content/hlcache.h"
#include "css/utils.h"
#include "render/box.h"
#include "desktop/print.h"
#include "desktop/printer.h"
/* Default print settings */
#define DEFAULT_PAGE_WIDTH 595
#define DEFAULT_PAGE_HEIGHT 840
#define DEFAULT_COPIES 1
static float page_content_width, page_content_height;
static struct hlcache_handle *printed_content;
static float done_height;
bool html_redraw_printing = false;
int html_redraw_printing_border = 0;
int html_redraw_printing_top_cropped = 0;
/**
* This function calls print setup, prints page after page until the whole
* content is printed calls cleaning up afterwise.
*
* \param content The content to be printed
* \param printer The printer interface for the printer to be used
* \param settings The settings for printing to use
* \return true if successful, false otherwise
*/
bool print_basic_run(hlcache_handle *content,
const struct printer *printer,
struct print_settings *settings)
{
bool ret = true;
assert(content != NULL && printer != NULL && settings != NULL);
if (print_set_up(content, printer, settings, NULL))
return false;
while (ret && (done_height < content_get_height(printed_content)) ) {
ret = print_draw_next_page(printer, settings);
}
print_cleanup(content, printer, settings);
return ret;
}
/**
* The content passed to the function is duplicated with its boxes, font
* measuring functions are being set.
*
* \param content The content to be printed
* \param settings The settings for printing to use
* \return true if successful, false otherwise
*/
static struct hlcache_handle *
print_init(struct hlcache_handle *content, struct print_settings *settings)
{
struct hlcache_handle* printed_content;
hlcache_handle_clone(content, &printed_content);
return printed_content;
}
/**
* The content is resized to fit page width.
*
* \param content The content to be printed
* \param settings The settings for printing to use
* \return true if successful, false otherwise
*/
static bool
print_apply_settings(hlcache_handle *content, struct print_settings *settings)
{
if (settings == NULL)
return false;
/* Apply settings - adjust page size etc */
page_content_width = (settings->page_width -
FIXTOFLT(FSUB(settings->margins[MARGINLEFT],
settings->margins[MARGINRIGHT]))) / settings->scale;
page_content_height = (settings->page_height -
FIXTOFLT(FSUB(settings->margins[MARGINTOP],
settings->margins[MARGINBOTTOM]))) / settings->scale;
content_reformat(content, false, page_content_width, 0);
NSLOG(netsurf, INFO,
"New layout applied.New height = %d ; New width = %d ",
content_get_height(content),
content_get_width(content));
return true;
}
/**
* This function prepares the content to be printed. The current browser content
* is duplicated and resized, printer initialization is called.
*
* \param content The content to be printed
* \param printer The printer interface for the printer to be used
* \param settings The settings for printing to use
* \param height updated to the height of the printed content
* \return true if successful, false otherwise
*/
bool print_set_up(hlcache_handle *content,
const struct printer *printer, struct print_settings *settings,
double *height)
{
printed_content = print_init(content, settings);
if (printed_content == NULL)
return false;
print_apply_settings(printed_content, settings);
if (height)
*height = content_get_height(printed_content);
printer->print_begin(settings);
done_height = 0;
return true;
}
/**
* This function draws one page, beginning with the height offset of done_height
*
* \param printer The printer interface for the printer to be used
* \param settings The settings for printing to use
* \return true if successful, false otherwise
*/
bool print_draw_next_page(const struct printer *printer,
struct print_settings *settings)
{
struct rect clip;
struct content_redraw_data data;
struct redraw_context ctx = {
.interactive = false,
.background_images = !nsoption_bool(remove_backgrounds),
.plot = printer->plotter,
.priv = settings->priv
};
html_redraw_printing_top_cropped = INT_MAX;
clip.x0 = 0;
clip.y0 = 0;
clip.x1 = page_content_width * settings->scale;
clip.y1 = page_content_height * settings->scale;
data.x = 0;
data.y = -done_height;
data.width = 0;
data.height = 0;
data.background_colour = 0xFFFFFF;
data.scale = settings->scale;
data.repeat_x = false;
data.repeat_y = false;
html_redraw_printing = true;
html_redraw_printing_border = clip.y1;
printer->print_next_page();
if (!content_redraw(printed_content, &data, &clip, &ctx))
return false;
done_height += page_content_height -
(html_redraw_printing_top_cropped != INT_MAX ?
clip.y1 - html_redraw_printing_top_cropped : 0) /
settings->scale;
return true;
}
/**
* Memory allocated during printing is being freed here.
*
* \param content The original content
* \param printer The printer interface for the printer to be used
* \param settings The print settings to use.
* \return true if successful, false otherwise
*/
bool print_cleanup(hlcache_handle *content, const struct printer *printer,
struct print_settings *settings)
{
printer->print_end();
html_redraw_printing = false;
if (printed_content) {
hlcache_handle_release(printed_content);
}
free((void *)settings->output);
free(settings);
return true;
}
/**
* Generates one of the predefined print settings sets.
*
* \param configuration the requested configuration
* \param filename the filename or NULL
* \param font_func font handling functions
* \return print_settings in case if successful, NULL if unknown
* configuration or lack of memory.
*/
struct print_settings *print_make_settings(print_configuration configuration,
const char *filename, const struct gui_layout_table *font_func)
{
struct print_settings *settings;
css_fixed length = 0;
css_unit unit = CSS_UNIT_MM;
switch (configuration){
case PRINT_DEFAULT:
settings = (struct print_settings*)
malloc(sizeof(struct print_settings));
if (settings == NULL)
return NULL;
settings->page_width = DEFAULT_PAGE_WIDTH;
settings->page_height = DEFAULT_PAGE_HEIGHT;
settings->copies = DEFAULT_COPIES;
settings->scale = DEFAULT_EXPORT_SCALE;
length = INTTOFIX(DEFAULT_MARGIN_LEFT_MM);
settings->margins[MARGINLEFT] =
nscss_len2px(length, unit, NULL);
length = INTTOFIX(DEFAULT_MARGIN_RIGHT_MM);
settings->margins[MARGINRIGHT] =
nscss_len2px(length, unit, NULL);
length = INTTOFIX(DEFAULT_MARGIN_TOP_MM);
settings->margins[MARGINTOP] =
nscss_len2px(length, unit, NULL);
length = INTTOFIX(DEFAULT_MARGIN_BOTTOM_MM);
settings->margins[MARGINBOTTOM] =
nscss_len2px(length, unit, NULL);
break;
/* use settings from the Export options tab */
case PRINT_OPTIONS:
settings = (struct print_settings*)
malloc(sizeof(struct print_settings));
if (settings == NULL)
return NULL;
settings->page_width = DEFAULT_PAGE_WIDTH;
settings->page_height = DEFAULT_PAGE_HEIGHT;
settings->copies = DEFAULT_COPIES;
settings->scale = (float)nsoption_int(export_scale) / 100;
length = INTTOFIX(nsoption_int(margin_left));
settings->margins[MARGINLEFT] =
nscss_len2px(length, unit, NULL);
length = INTTOFIX(nsoption_int(margin_right));
settings->margins[MARGINRIGHT] =
nscss_len2px(length, unit, NULL);
length = INTTOFIX(nsoption_int(margin_top));
settings->margins[MARGINTOP] =
nscss_len2px(length, unit, NULL);
length = INTTOFIX(nsoption_int(margin_bottom));
settings->margins[MARGINBOTTOM] =
nscss_len2px(length, unit, NULL);
break;
default:
return NULL;
}
/* Set font functions */
settings->font_func = font_func;
/* Output filename, or NULL if printing */
if (filename != NULL) {
settings->output = strdup(filename);
if (settings->output == NULL) {
free(settings);
return NULL;
}
} else {
settings->output = NULL;
}
return settings;
}
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