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author | John Tytgat <joty@netsurf-browser.org> | 2008-07-26 16:01:59 +0000 |
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committer | John Tytgat <joty@netsurf-browser.org> | 2008-07-26 16:01:59 +0000 |
commit | 35d3d6d0bb16abeeb6aad2fd0398c8e68a40d414 (patch) | |
tree | 9967569fb69077f96f6f7e63998001c673dd82c5 /desktop/print.c | |
parent | 9fb65c709676d5b665ba0bd8aeb706ce28de46ea (diff) | |
download | netsurf-35d3d6d0bb16abeeb6aad2fd0398c8e68a40d414.tar.gz netsurf-35d3d6d0bb16abeeb6aad2fd0398c8e68a40d414.tar.bz2 |
First merge of Adam Blokus' GSoC work from his branch 'branches/adamblokus/netsurf'.
Merged revisions 4212-4552,4554-4709,4711-4724 via svnmerge from
svn://svn.netsurf-browser.org/branches/adamblokus/netsurf
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r4212 | adamblokus | 2008-05-26 19:42:31 +0200 (Mon, 26 May 2008) | 4 lines
Pdf plotting skeleton pinned on Print Preview in GTK.
Just creates a file and draws lines.
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r4213 | adamblokus | 2008-05-27 00:11:03 +0200 (Tue, 27 May 2008) | 4 lines
Pdf plotter - added drawing some graphic primitives.
Still with limited functionality, but a snapshot of the
currently viewed page can be made and resembles the original.
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r4214 | adamblokus | 2008-05-27 11:43:31 +0200 (Tue, 27 May 2008) | 2 lines
Corrected encoding name
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r4215 | adamblokus | 2008-05-27 12:47:26 +0200 (Tue, 27 May 2008) | 3 lines
Colours and polygons added.
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r4217 | adamblokus | 2008-05-27 21:39:35 +0200 (Tue, 27 May 2008) | 6 lines
Added rectangles, filled boxes and clipping.
Taken into consideration joty's comments.
Added a todo list for this part.
Added some debug stuff and checking boundaries.
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r4218 | adamblokus | 2008-05-28 12:37:30 +0200 (Wed, 28 May 2008) | 2 lines
Added path ploting (not sure if valid argument order for bezier) and dashed/dotted line styles
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r4221 | adamblokus | 2008-05-28 22:11:05 +0200 (Wed, 28 May 2008) | 3 lines
Some more options in graphic primitives and normalizing some parameters.
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r4235 | adamblokus | 2008-05-31 22:54:56 +0200 (Sat, 31 May 2008) | 4 lines
Plotting changed as jmb suggested (is the least invasive one from the possible)
Added dummy bitmap plotting - way of plotting an image is determined by its type.
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r4251 | adamblokus | 2008-06-03 17:12:15 +0200 (Tue, 03 Jun 2008) | 3 lines
Added plotting jpg and png images - quite a lot to improve in this code, but it seems to work ;)
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r4263 | adamblokus | 2008-06-05 14:20:32 +0200 (Thu, 05 Jun 2008) | 3 lines
Added hadling images other than png and jpeg - with transparency.
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r4267 | adamblokus | 2008-06-06 15:36:34 +0200 (Fri, 06 Jun 2008) | 5 lines
Added handling NULL-returns from all mallocs.
Added plot_bitmap_tile handling.
Changed code style a little.
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r4327 | adamblokus | 2008-06-12 17:46:34 +0200 (Thu, 12 Jun 2008) | 5 lines
Added a first prototype of the paged-output organization.
Still not sure about naming, file locations etc.
Works with the same pdf plotting as before.
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r4328 | adamblokus | 2008-06-13 13:52:15 +0200 (Fri, 13 Jun 2008) | 4 lines
Added primitive width adjustment and outputing the whole
website in multiple pages.
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r4336 | joty | 2008-06-15 15:06:57 +0200 (Sun, 15 Jun 2008) | 1 line
Fix RISC OS build failure (change r4235 wasn't complete).
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r4337 | joty | 2008-06-15 18:15:32 +0200 (Sun, 15 Jun 2008) | 16 lines
This enables "Export PDF" in RISC OS build:
- Docs/Doxyfile(PREDEFINED): Added WITH_PDF_EXPORT
- Makefile.sources(S_PDF): Add to RISC OS target as well.
- utils/config.h: Define WITH_PDF_EXPORT which controls if we want to have
PDF export functionality or not.
- riscos/save_pdf.c,riscos/save_pdf.h(save_as_pdf): Use PDF print API made
by Adam Blokus to write a PDF file under RISC OS.
- riscos/save.c: Call save_as_pdf added.
- riscos/menus.c: Add 'Export->PDF' menu entry.
- riscos/menus.h(menu_action): Added BROWSER_EXPORT_PDF.
- desktop/gui.h(gui_save_type): Added GUI_SAVE_PDF.
- desktop/print.c(print_run): Added return value.
- Makefile(CCACHE): Moved closed to the place where CC is set for the first time.
(LDFLAGS): Centralised adding all non-pkgconfig libraries and added Haru + PNG libs.
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r4343 | adamblokus | 2008-06-16 01:08:52 +0200 (Mon, 16 Jun 2008) | 3 lines
Added margins and page size adjustment.
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r4412 | adamblokus | 2008-06-21 20:22:07 +0200 (Sat, 21 Jun 2008) | 4 lines
Added 'fuzzy' margins on page bottom.
Disabled direct png embedding, because it is too unstable in Haru now.
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r4421 | adamblokus | 2008-06-22 18:52:28 +0200 (Sun, 22 Jun 2008) | 2 lines
Added "Save as.." dialog and Export->PDF menu entry. Print preview still works with default path.
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r4437 | adamblokus | 2008-06-25 02:44:46 +0200 (Wed, 25 Jun 2008) | 4 lines
Added skeleton of applying loose layout.
Minor code cleaning-up.
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r4492 | adamblokus | 2008-07-02 09:02:42 +0200 (Wed, 02 Jul 2008) | 5 lines
Implemented the elementar ideas of the loose layout.
Added scaling in the printing routine.
Added some basic demonstrations.
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r4493 | adamblokus | 2008-07-02 09:05:55 +0200 (Wed, 02 Jul 2008) | 3 lines
Cleaned up the loosing code - commited to much of leftover rubbish code.
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r4507 | adamblokus | 2008-07-04 14:25:48 +0200 (Fri, 04 Jul 2008) | 4 lines
Added duplicating box tree and current content - window flickering during printing solved.
Minor error checking after new HPDF_Image_AddSMask call.
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r4515 | adamblokus | 2008-07-06 22:28:16 +0200 (Sun, 06 Jul 2008) | 2 lines
Changes in loosen layout (image resizing).
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r4517 | adamblokus | 2008-07-06 22:38:23 +0200 (Sun, 06 Jul 2008) | 2 lines
Added pdf font handling and rendering functions with the use of Haru functions.
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r4555 | adamblokus | 2008-07-10 00:59:05 +0200 (Thu, 10 Jul 2008) | 2 lines
Added a very basic and still buggy GTK print implementation.
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r4565 | adamblokus | 2008-07-10 14:50:16 +0200 (Thu, 10 Jul 2008) | 2 lines
Added gtk printing one more time - I have forgotten to add the main file.
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r4566 | adamblokus | 2008-07-10 14:57:02 +0200 (Thu, 10 Jul 2008) | 2 lines
removed error with comment
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r4569 | adamblokus | 2008-07-10 15:52:55 +0200 (Thu, 10 Jul 2008) | 5 lines
Major style improvements - added a lot of doxygen comments,
followed tlsa's style guide.
Added some more error checking, too.
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r4575 | adamblokus | 2008-07-10 18:48:26 +0200 (Thu, 10 Jul 2008) | 2 lines
Cleaned up the code.
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r4687 | adamblokus | 2008-07-17 14:17:19 +0200 (Thu, 17 Jul 2008) | 2 lines
Changed everything according to jmb's review plus some minor bug fixes to gtk_print.
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r4688 | adamblokus | 2008-07-17 17:16:34 +0200 (Thu, 17 Jul 2008) | 2 lines
Solved the netsurf.glade clash from r4421.
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r4693 | adamblokus | 2008-07-18 18:11:51 +0200 (Fri, 18 Jul 2008) | 2 lines
Fixed bug with wrong number of pages in gtk printing.
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r4695 | adamblokus | 2008-07-18 19:59:24 +0200 (Fri, 18 Jul 2008) | 3 lines
- fixed uncommented line from the previous commit
- fixed bug with scale bigger than 1.0 (incorretly clipped page)
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r4696 | adamblokus | 2008-07-18 23:28:00 +0200 (Fri, 18 Jul 2008) | 2 lines
Fixed bug in gtk_print_font_paint (and nsfont_paint).
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r4697 | adamblokus | 2008-07-18 23:35:38 +0200 (Fri, 18 Jul 2008) | 2 lines
Bug fix in nsfont_paint.
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r4711 | adamblokus | 2008-07-19 22:44:15 +0200 (Sat, 19 Jul 2008) | 2 lines
Added gtk_selection files.
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r4712 | adamblokus | 2008-07-20 11:15:06 +0200 (Sun, 20 Jul 2008) | 2 lines
Addam missing glade files.
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r4713 | joty | 2008-07-20 17:13:10 +0200 (Sun, 20 Jul 2008) | 1 line
Follow change r4517 for RISC OS and BeOS platforms : Added pdf font handling and rendering functions with the use of Haru functions.
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r4714 | joty | 2008-07-20 18:19:50 +0200 (Sun, 20 Jul 2008) | 1 line
Declare haru_nsfont iso define an instance for each C source including the font_haru.h header. This fixes breakage of PDF export on RISC OS.
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r4724 | adamblokus | 2008-07-23 03:30:08 +0200 (Wed, 23 Jul 2008) | 6 lines
Applied changes according to joty's review.
Added checking the dimensions of a plotted image to pdf plotter.
Commented out jpg embedding (it seems to cause some problems
I'll bring it back when I figure out what's wrong) .
Added back some files removed by mistake.
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svn path=/trunk/netsurf/; revision=4741
Diffstat (limited to 'desktop/print.c')
-rw-r--r-- | desktop/print.c | 280 |
1 files changed, 280 insertions, 0 deletions
diff --git a/desktop/print.c b/desktop/print.c new file mode 100644 index 000000000..0852fa34c --- /dev/null +++ b/desktop/print.c @@ -0,0 +1,280 @@ +/* + * 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 "desktop/print.h" +#include "desktop/printer.h" + +#include "content/content.h" + +#include "utils/log.h" +#include "utils/talloc.h" + +#include "render/loosen.h" +#include "render/box.h" + +#include "pdf/font_haru.h" + +static struct content *print_init(struct content *, struct print_settings *); +static bool print_apply_settings(struct content *, struct print_settings *); + + +/*TODO: should these be passed as parameters in order to allow simultaneous + printings? +*/ +static float page_content_width, page_content_height; +static float text_margin_height; +static struct content *printed_content; +static float done_height; + +/** + * 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 or NULL for DEFAULT + * \return true if successful, false otherwise +*/ +bool print_basic_run(struct content *content, + const struct printer *printer, + struct print_settings *settings) +{ + bool ret = true; + + if (settings == NULL) + settings = print_make_settings(DEFAULT); + + if (!print_set_up(content, printer, settings, NULL)) + ret = false; + + while (ret && (done_height < printed_content->height) ) + ret = print_draw_next_page(printer, settings); + + print_cleanup(content, printer); + + 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(struct content *content, + const struct printer *printer, struct print_settings *settings, + double *height) +{ + + printed_content = print_init(content, settings); + + if (!printed_content) + return false; + + print_apply_settings(printed_content, settings); + + if (height) + *height = printed_content->height; + + 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) +{ + + /*TODO:Plotter will have to be duplicated and passed + as an argument - to allow simultaneous screen and + page plotting*/ + plot = *(printer->plotter); + + printer->print_next_page(); + if( !content_redraw(printed_content, + 0, + -done_height, + 0,0, + 0, + 0, + page_content_width * settings->scale, + page_content_height * settings->scale, + settings->scale, 0xffffff)) + return false; + done_height += page_content_height - text_margin_height; + + 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 + */ +struct content *print_init(struct content *content, + struct print_settings *settings) +{ + struct content* printed_content; + struct content_user *user_sentinel; + + content_add_user(content, NULL, (intptr_t)print_init, 0); + + printed_content = talloc_memdup(content, content, sizeof *content); + + if (!printed_content) + return NULL; + + printed_content->data.html.bw = 0; + + user_sentinel = talloc(printed_content, struct content_user); + user_sentinel->callback = 0; + user_sentinel->p1 = user_sentinel->p2 = 0; + user_sentinel->next = 0; + printed_content->user_list = user_sentinel; + content_add_user(printed_content, NULL, (intptr_t)print_init, 0); + + printed_content->data.html.layout = + box_duplicate_tree(content->data.html.layout, + printed_content); + + if (!printed_content->data.html.layout) + return NULL; + + if (settings->font_func == NULL) + printed_content->data.html.font_func = &haru_nsfont; + else + printed_content->data.html.font_func = settings->font_func; + + return printed_content; +} + +/** + * The content is resized to fit page width. In case it is to wide, it is + * loosened. + * \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(struct content *content, + struct print_settings *settings) +{ + if (settings == NULL) + return false; + + /*Apply settings - adjust page size etc*/ + + text_margin_height = settings->margins[MARGINTEXT]; + + page_content_width = (settings->page_width - settings->margins[MARGINLEFT] - + settings->margins[MARGINRIGHT]) / settings->scale; + + page_content_height = (settings->page_height - settings->margins[MARGINTOP] - + settings->margins[MARGINBOTTOM]) / settings->scale; + + content_reformat(content, page_content_width, 0); + LOG(("New layout applied.New height = %d ; New width = %d ", + content->height, content->width)); + + if (content->width > page_content_width) + return loosen_document_layout(content, content->data.html.layout, + page_content_width, page_content_height); + + 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(struct content *content, + const struct printer *printer) +{ + printer->print_end(); + + if (printed_content) { + content_remove_user(printed_content, NULL, (intptr_t)print_init, 0); + talloc_free(printed_content); + } + + content_remove_user(content, NULL, (intptr_t)print_init, 0); + + return true; +} + +/** + * Generates one of the predefined print settings sets. + * \return print_settings in case if successful, NULL if unknown configuration \ + * or lack of memory. + */ +struct print_settings *print_make_settings(print_configuration configuration) +{ + + struct print_settings *settings; + + switch (configuration){ + case DEFAULT: + settings = (struct print_settings*) + malloc(sizeof (struct print_settings) ); + + if (settings == NULL) + return NULL; + + settings->page_width = 595; + settings->page_height = 840; + settings->copies = 1; + /*with 0.7 the pages look the best, the value in + haru_nsfont_apply_style should be kept the same as this + */ + settings->scale = 0.7; + + settings->margins[MARGINLEFT] = 30; + settings->margins[MARGINRIGHT] = 30; + settings->margins[MARGINTOP] = 30; + settings->margins[MARGINBOTTOM] = 30; + + settings->margins[MARGINTEXT] = 10; + + settings->output = "out.pdf"; + settings->font_func = &haru_nsfont; + + break; + + default: + return NULL; + } + + return settings; +} |