326 lines
8.8 KiB
C
326 lines
8.8 KiB
C
/*
|
|
* 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
|
|
* Output-in-pages implementation
|
|
*/
|
|
|
|
#include "utils/config.h"
|
|
|
|
#include <assert.h>
|
|
#include <string.h>
|
|
|
|
#include "content/content.h"
|
|
#include "content/hlcache.h"
|
|
#include "css/utils.h"
|
|
#include "desktop/options.h"
|
|
#include "desktop/print.h"
|
|
#include "desktop/printer.h"
|
|
#include "render/box.h"
|
|
#include "utils/log.h"
|
|
#include "utils/talloc.h"
|
|
#include "utils/types.h"
|
|
|
|
/* Default print settings */
|
|
#define DEFAULT_PAGE_WIDTH 595
|
|
#define DEFAULT_PAGE_HEIGHT 840
|
|
#define DEFAULT_COPIES 1
|
|
|
|
static hlcache_handle *print_init(hlcache_handle *, struct print_settings *);
|
|
static bool print_apply_settings(hlcache_handle *, struct print_settings *);
|
|
|
|
static float page_content_width, page_content_height;
|
|
static 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;
|
|
}
|
|
|
|
/**
|
|
* 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 = !option_remove_backgrounds,
|
|
.plot = printer->plotter
|
|
};
|
|
|
|
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;
|
|
}
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
hlcache_handle *print_init(hlcache_handle *content,
|
|
struct print_settings *settings)
|
|
{
|
|
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
|
|
*/
|
|
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);
|
|
|
|
LOG(("New layout applied.New height = %d ; New width = %d ",
|
|
content_get_height(content),
|
|
content_get_width(content)));
|
|
|
|
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
|
|
* \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 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 font_functions *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)option_export_scale / 100;
|
|
|
|
length = INTTOFIX(option_margin_left);
|
|
settings->margins[MARGINLEFT] =
|
|
nscss_len2px(length, unit, NULL);
|
|
length = INTTOFIX(option_margin_right);
|
|
settings->margins[MARGINRIGHT] =
|
|
nscss_len2px(length, unit, NULL);
|
|
length = INTTOFIX(option_margin_top);
|
|
settings->margins[MARGINTOP] =
|
|
nscss_len2px(length, unit, NULL);
|
|
length = INTTOFIX(option_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;
|
|
}
|
|
|