diff options
Diffstat (limited to 'gtk/print.c')
-rw-r--r-- | gtk/print.c | 613 |
1 files changed, 0 insertions, 613 deletions
diff --git a/gtk/print.c b/gtk/print.c deleted file mode 100644 index a6e639996..000000000 --- a/gtk/print.c +++ /dev/null @@ -1,613 +0,0 @@ -/* - * Copyright 2006 Rob Kendrick <rjek@rjek.com> - * Copyright 2005 James Bursa <bursa@users.sourceforge.net> - * 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 - * GTK printing (implementation). - * All the functions and structures necessary for printing( signal handlers, - * plotters, printer) are here. - * Most of the plotters have been copied from the gtk_plotters.c file. - */ - -#include "utils/config.h" - -#include <math.h> -#include <assert.h> -#include <gdk/gdk.h> -#include <gtk/gtk.h> - -#include "utils/log.h" -#include "utils/utils.h" -#include "content/content.h" -#include "content/hlcache.h" -#include "utils/nsoption.h" -#include "desktop/plotters.h" -#include "desktop/print.h" -#include "desktop/printer.h" - -#include "gtk/layout_pango.h" -#include "gtk/bitmap.h" -#include "gtk/print.h" -#include "gtk/scaffolding.h" - -/* Globals */ -cairo_t *gtk_print_current_cr; -static struct print_settings* settings; -hlcache_handle *content_to_print; -static GdkRectangle cliprect; - -static inline void nsgtk_print_set_colour(colour c) -{ - int r, g, b; - - r = c & 0xff; - g = (c & 0xff00) >> 8; - b = (c & 0xff0000) >> 16; - -#ifdef FIXME - GdkColor colour; - colour.red = r | (r << 8); - colour.green = g | (g << 8); - colour.blue = b | (b << 8); - colour.pixel = (r << 16) | (g << 8) | b; - gdk_colormap_alloc_color(gdk_colormap_get_system(), &colour, true, true); -#endif - cairo_set_source_rgba(gtk_print_current_cr, r / 255.0, - g / 255.0, b / 255.0, 1.0); -} - - - -static bool gtk_print_font_paint(int x, int y, - const char *string, size_t length, - const plot_font_style_t *fstyle) -{ - PangoFontDescription *desc; - PangoLayout *layout; - gint size; - PangoLayoutLine *line; - - if (length == 0) - return true; - - desc = nsfont_style_to_description(fstyle); - size = (gint) ((double) pango_font_description_get_size(desc) * - settings->scale); - - if (pango_font_description_get_size_is_absolute(desc)) - pango_font_description_set_absolute_size(desc, size); - else - pango_font_description_set_size(desc, size); - - layout = pango_cairo_create_layout(gtk_print_current_cr); - - pango_layout_set_font_description(layout, desc); - pango_layout_set_text(layout, string, length); - - line = pango_layout_get_line(layout, 0); - - cairo_move_to(gtk_print_current_cr, x, y); - nsgtk_print_set_colour(fstyle->foreground); - pango_cairo_show_layout_line(gtk_print_current_cr, line); - - g_object_unref(layout); - pango_font_description_free(desc); - - return true; -} - - -/** Set cairo context to solid plot operation. */ -static inline void nsgtk_print_set_solid(void) -{ - double dashes = 0; - cairo_set_dash(gtk_print_current_cr, &dashes, 0, 0); -} - -/** Set cairo context to dotted plot operation. */ -static inline void nsgtk_print_set_dotted(void) -{ - double cdashes[] = { 1.0, 2.0 }; - cairo_set_dash(gtk_print_current_cr, cdashes, 1, 0); -} - -/** Set cairo context to dashed plot operation. */ -static inline void nsgtk_print_set_dashed(void) -{ - double cdashes[] = { 8.0, 2.0 }; - cairo_set_dash(gtk_print_current_cr, cdashes, 1, 0); -} - -/** Set clipping area for subsequent plot operations. */ -static bool nsgtk_print_plot_clip(const struct rect *clip) -{ - LOG("Clipping. x0: %i ;\t y0: %i ;\t x1: %i ;\t y1: %i", clip->x0, clip->y0, clip->x1, clip->y1); - - /* Normalize cllipping area - to prevent overflows. - * See comment in pdf_plot_fill. */ - int clip_x0 = min(max(clip->x0, 0), settings->page_width); - int clip_y0 = min(max(clip->y0, 0), settings->page_height); - int clip_x1 = min(max(clip->x1, 0), settings->page_width); - int clip_y1 = min(max(clip->y1, 0), settings->page_height); - - cairo_reset_clip(gtk_print_current_cr); - cairo_rectangle(gtk_print_current_cr, clip_x0, clip_y0, - clip_x1 - clip_x0, clip_y1 - clip_y0); - cairo_clip(gtk_print_current_cr); - - cliprect.x = clip_x0; - cliprect.y = clip_y0; - cliprect.width = clip_x1 - clip_x0; - cliprect.height = clip_y1 - clip_y0; - - return true; -} - -static bool nsgtk_print_plot_arc(int x, int y, int radius, int angle1, int angle2, const plot_style_t *style) -{ - nsgtk_print_set_colour(style->fill_colour); - nsgtk_print_set_solid(); - - cairo_set_line_width(gtk_print_current_cr, 1); - cairo_arc(gtk_print_current_cr, x, y, radius, - (angle1 + 90) * (M_PI / 180), - (angle2 + 90) * (M_PI / 180)); - cairo_stroke(gtk_print_current_cr); - - return true; -} - -static bool nsgtk_print_plot_disc(int x, int y, int radius, const plot_style_t *style) -{ - if (style->fill_type != PLOT_OP_TYPE_NONE) { - nsgtk_print_set_colour(style->fill_colour); - nsgtk_print_set_solid(); - cairo_set_line_width(gtk_print_current_cr, 0); - cairo_arc(gtk_print_current_cr, x, y, radius, 0, M_PI * 2); - cairo_fill(gtk_print_current_cr); - cairo_stroke(gtk_print_current_cr); - } - - if (style->stroke_type != PLOT_OP_TYPE_NONE) { - nsgtk_print_set_colour(style->stroke_colour); - - switch (style->stroke_type) { - case PLOT_OP_TYPE_SOLID: /**< Solid colour */ - default: - nsgtk_print_set_solid(); - break; - - case PLOT_OP_TYPE_DOT: /**< Doted plot */ - nsgtk_print_set_dotted(); - break; - - case PLOT_OP_TYPE_DASH: /**< dashed plot */ - nsgtk_print_set_dashed(); - break; - } - - if (style->stroke_width == 0) - cairo_set_line_width(gtk_print_current_cr, 1); - else - cairo_set_line_width(gtk_print_current_cr, style->stroke_width); - - cairo_arc(gtk_print_current_cr, x, y, radius, 0, M_PI * 2); - - cairo_stroke(gtk_print_current_cr); - } - return true; -} - -static bool nsgtk_print_plot_line(int x0, int y0, int x1, int y1, const plot_style_t *style) -{ - nsgtk_print_set_colour(style->stroke_colour); - - switch (style->stroke_type) { - case PLOT_OP_TYPE_SOLID: /**< Solid colour */ - default: - nsgtk_print_set_solid(); - break; - - case PLOT_OP_TYPE_DOT: /**< Doted plot */ - nsgtk_print_set_dotted(); - break; - - case PLOT_OP_TYPE_DASH: /**< dashed plot */ - nsgtk_print_set_dashed(); - break; - } - - if (style->stroke_width == 0) - cairo_set_line_width(gtk_print_current_cr, 1); - else - cairo_set_line_width(gtk_print_current_cr, style->stroke_width); - - cairo_move_to(gtk_print_current_cr, x0 + 0.5, y0 + 0.5); - cairo_line_to(gtk_print_current_cr, x1 + 0.5, y1 + 0.5); - cairo_stroke(gtk_print_current_cr); - - return true; -} - -static bool nsgtk_print_plot_rectangle(int x0, int y0, int x1, int y1, const plot_style_t *style) -{ - LOG("x0: %i ;\t y0: %i ;\t x1: %i ;\t y1: %i", x0, y0, x1, y1); - - if (style->fill_type != PLOT_OP_TYPE_NONE) { - - nsgtk_print_set_colour(style->fill_colour); - nsgtk_print_set_solid(); - - /* Normalize boundaries of the area - to prevent overflows. - * See comment in pdf_plot_fill. */ - x0 = min(max(x0, 0), settings->page_width); - y0 = min(max(y0, 0), settings->page_height); - x1 = min(max(x1, 0), settings->page_width); - y1 = min(max(y1, 0), settings->page_height); - - cairo_set_line_width(gtk_print_current_cr, 0); - cairo_rectangle(gtk_print_current_cr, x0, y0, x1 - x0, y1 - y0); - cairo_fill(gtk_print_current_cr); - cairo_stroke(gtk_print_current_cr); - } - - if (style->stroke_type != PLOT_OP_TYPE_NONE) { - nsgtk_print_set_colour(style->stroke_colour); - - switch (style->stroke_type) { - case PLOT_OP_TYPE_SOLID: /**< Solid colour */ - default: - nsgtk_print_set_solid(); - break; - - case PLOT_OP_TYPE_DOT: /**< Doted plot */ - nsgtk_print_set_dotted(); - break; - - case PLOT_OP_TYPE_DASH: /**< dashed plot */ - nsgtk_print_set_dashed(); - break; - } - - if (style->stroke_width == 0) - cairo_set_line_width(gtk_print_current_cr, 1); - else - cairo_set_line_width(gtk_print_current_cr, style->stroke_width); - - cairo_rectangle(gtk_print_current_cr, x0, y0, x1 - x0, y1 - y0); - cairo_stroke(gtk_print_current_cr); - } - - return true; -} - -static bool nsgtk_print_plot_polygon(const int *p, unsigned int n, const plot_style_t *style) -{ - unsigned int i; - - LOG("Plotting polygon."); - - nsgtk_print_set_colour(style->fill_colour); - nsgtk_print_set_solid(); - - cairo_set_line_width(gtk_print_current_cr, 0); - cairo_move_to(gtk_print_current_cr, p[0], p[1]); - - LOG("Starting line at: %i\t%i", p[0], p[1]); - - for (i = 1; i != n; i++) { - cairo_line_to(gtk_print_current_cr, p[i * 2], p[i * 2 + 1]); - LOG("Drawing line to: %i\t%i", p[i * 2], p[i * 2 + 1]); - } - - cairo_fill(gtk_print_current_cr); - cairo_stroke(gtk_print_current_cr); - - return true; -} - - -static bool nsgtk_print_plot_path(const float *p, unsigned int n, colour fill, - float width, colour c, const float transform[6]) -{ - /* Only the internal SVG renderer uses this plot call currently, - * and the GTK version uses librsvg. Thus, we ignore this complexity, - * and just return true obliviously. */ - - return true; -} - - -static bool nsgtk_print_plot_pixbuf(int x, int y, int width, int height, - struct bitmap *bitmap, colour bg) -{ - int x0, y0, x1, y1; - int dsrcx, dsrcy, dwidth, dheight; - int bmwidth, bmheight; - - cairo_surface_t *bmsurface = bitmap->surface; - - /* Bail early if we can */ - if (width == 0 || height == 0) - /* Nothing to plot */ - return true; - if ((x > (cliprect.x + cliprect.width)) || - ((x + width) < cliprect.x) || - (y > (cliprect.y + cliprect.height)) || - ((y + height) < cliprect.y)) { - /* Image completely outside clip region */ - return true; - } - - /* Get clip rectangle / image rectangle edge differences */ - x0 = cliprect.x - x; - y0 = cliprect.y - y; - x1 = (x + width) - (cliprect.x + cliprect.width); - y1 = (y + height) - (cliprect.y + cliprect.height); - - /* Set initial draw geometry */ - dsrcx = x; - dsrcy = y; - dwidth = width; - dheight = height; - - /* Manually clip draw coordinates to area of image to be rendered */ - if (x0 > 0) { - /* Clip left */ - dsrcx += x0; - dwidth -= x0; - } - if (y0 > 0) { - /* Clip top */ - dsrcy += y0; - dheight -= y0; - } - if (x1 > 0) { - /* Clip right */ - dwidth -= x1; - } - if (y1 > 0) { - /* Clip bottom */ - dheight -= y1; - } - - if (dwidth == 0 || dheight == 0) - /* Nothing to plot */ - return true; - - bmwidth = cairo_image_surface_get_width(bmsurface); - bmheight = cairo_image_surface_get_height(bmsurface); - - /* Render the bitmap */ - if ((bmwidth == width) && (bmheight == height)) { - /* Bitmap is not scaled */ - /* Plot the bitmap */ - cairo_set_source_surface(gtk_print_current_cr, bmsurface, x, y); - cairo_rectangle(gtk_print_current_cr, dsrcx, dsrcy, dwidth, dheight); - cairo_fill(gtk_print_current_cr); - - } else { - /* Bitmap is scaled */ - if ((bitmap->scsurface != NULL) && - ((cairo_image_surface_get_width(bitmap->scsurface) != width) || - (cairo_image_surface_get_height(bitmap->scsurface) != height))){ - cairo_surface_destroy(bitmap->scsurface); - bitmap->scsurface = NULL; - } - - if (bitmap->scsurface == NULL) { - bitmap->scsurface = cairo_surface_create_similar(bmsurface,CAIRO_CONTENT_COLOR_ALPHA, width, height); - cairo_t *cr = cairo_create(bitmap->scsurface); - - /* Scale *before* setting the source surface (1) */ - cairo_scale(cr, (double)width / bmwidth, (double)height / bmheight); - cairo_set_source_surface(cr, bmsurface, 0, 0); - - /* To avoid getting the edge pixels blended with 0 - * alpha, which would occur with the default - * EXTEND_NONE. Use EXTEND_PAD for 1.2 or newer (2) - */ - cairo_pattern_set_extend(cairo_get_source(cr), - CAIRO_EXTEND_REFLECT); - - /* Replace the destination with the source instead of - * overlaying - */ - cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE); - - /* Do the actual drawing */ - cairo_paint(cr); - - cairo_destroy(cr); - - } - /* Plot the scaled bitmap */ - cairo_set_source_surface(gtk_print_current_cr, bitmap->scsurface, x, y); - cairo_rectangle(gtk_print_current_cr, dsrcx, dsrcy, dwidth, dheight); - cairo_fill(gtk_print_current_cr); - - } - - return true; -} - - -static bool nsgtk_print_plot_bitmap(int x, int y, int width, int height, - struct bitmap *bitmap, colour bg, - bitmap_flags_t flags) -{ - int doneheight = 0, donewidth = 0; - bool repeat_x = (flags & BITMAPF_REPEAT_X); - bool repeat_y = (flags & BITMAPF_REPEAT_Y); - - if (!(repeat_x || repeat_y)) { - /* Not repeating at all, so just pass it on */ - return nsgtk_print_plot_pixbuf(x, y, width, height, bitmap, bg); - } - - width = nsgtk_bitmap_get_width(bitmap); - height = nsgtk_bitmap_get_height(bitmap); - - /* Bail early if we can */ - if (width == 0 || height == 0) - /* Nothing to plot */ - return true; - - if (y > cliprect.y) { - doneheight = (cliprect.y - height) + ((y - cliprect.y) % height); - } else { - doneheight = y; - } - - while (doneheight < (cliprect.y + cliprect.height)) { - if (x > cliprect.x) { - donewidth = (cliprect.x - width) + ((x - cliprect.x) % width); - } else { - donewidth = x; - } - - while (donewidth < (cliprect.x + cliprect.width)) { - nsgtk_print_plot_pixbuf(donewidth, doneheight, - width, height, bitmap, bg); - donewidth += width; - if (!repeat_x) - break; - } - doneheight += height; - - if (!repeat_y) - break; - } - - return true; -} - -static bool nsgtk_print_plot_text(int x, int y, const char *text, size_t length, - const plot_font_style_t *fstyle) -{ - return gtk_print_font_paint(x, y, text, length, fstyle); -} - -/** GTK print plotter table */ -static const struct plotter_table nsgtk_print_plotters = { - .clip = nsgtk_print_plot_clip, - .arc = nsgtk_print_plot_arc, - .disc = nsgtk_print_plot_disc, - .line = nsgtk_print_plot_line, - .rectangle = nsgtk_print_plot_rectangle, - .polygon = nsgtk_print_plot_polygon, - .path = nsgtk_print_plot_path, - .bitmap = nsgtk_print_plot_bitmap, - .text = nsgtk_print_plot_text, - .option_knockout = false, -}; - -static bool gtk_print_begin(struct print_settings* settings) -{ - return true; -} - -static bool gtk_print_next_page(void) -{ - return true; -} - -static void gtk_print_end(void) -{ -} - -static const struct printer gtk_printer = { - &nsgtk_print_plotters, - gtk_print_begin, - gtk_print_next_page, - gtk_print_end -}; - -/** - * Handle the begin_print signal from the GtkPrintOperation - * - * \param operation the operation which emited the signal - * \param context the print context used to set up the pages - * \param user_data nothing in here - */ -void gtk_print_signal_begin_print (GtkPrintOperation *operation, - GtkPrintContext *context, gpointer user_data) -{ - int page_number; - double height_on_page, height_to_print; - - LOG("Begin print"); - - settings = user_data; - - settings->margins[MARGINTOP] = 0; - settings->margins[MARGINLEFT] = 0; - settings->margins[MARGINBOTTOM] = 0; - settings->margins[MARGINRIGHT] = 0; - settings->page_width = gtk_print_context_get_width(context); - settings->page_height = gtk_print_context_get_height(context); - settings->scale = 0.7; /* at 0.7 the pages look the best */ - settings->font_func = nsgtk_layout_table; - - if (print_set_up(content_to_print, >k_printer, - settings, &height_to_print) == false) { - gtk_print_operation_cancel(operation); - - } else { - - LOG("page_width: %f ;page_height: %f; content height: %lf", settings->page_width, settings->page_height, height_to_print); - - height_on_page = settings->page_height; - height_on_page = height_on_page - - FIXTOFLT(FSUB(settings->margins[MARGINTOP], - settings->margins[MARGINBOTTOM])); - height_to_print *= settings->scale; - - page_number = height_to_print / height_on_page; - - if (height_to_print - page_number * height_on_page > 0) - page_number += 1; - - gtk_print_operation_set_n_pages(operation, page_number); - } -} - -/** - * Handle the draw_page signal from the GtkPrintOperation. - * This function changes only the cairo context to print on. - */ -void gtk_print_signal_draw_page(GtkPrintOperation *operation, - GtkPrintContext *context, gint page_nr, gpointer user_data) -{ - LOG("Draw Page"); - gtk_print_current_cr = gtk_print_context_get_cairo_context(context); - print_draw_next_page(>k_printer, settings); -} - -/** - * Handle the end_print signal from the GtkPrintOperation. - * This functions calls only the print_cleanup function from the print interface - */ -void gtk_print_signal_end_print(GtkPrintOperation *operation, - GtkPrintContext *context, gpointer user_data) -{ - LOG("End print"); - print_cleanup(content_to_print, >k_printer, user_data); -} - - |