From 892a348b7331b66f27e41e3ac6b91cd924243d81 Mon Sep 17 00:00:00 2001 From: James Bursa Date: Sun, 17 Oct 2004 21:51:06 +0000 Subject: [project @ 2004-10-17 21:51:06 by bursa] Update to use plotters for HTML redraw. svn path=/import/netsurf/; revision=1322 --- gtk/gtk_plotters.c | 215 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 215 insertions(+) create mode 100644 gtk/gtk_plotters.c (limited to 'gtk/gtk_plotters.c') diff --git a/gtk/gtk_plotters.c b/gtk/gtk_plotters.c new file mode 100644 index 000000000..86ba56fa9 --- /dev/null +++ b/gtk/gtk_plotters.c @@ -0,0 +1,215 @@ +/* + * This file is part of NetSurf, http://netsurf.sourceforge.net/ + * Licensed under the GNU General Public License, + * http://www.opensource.org/licenses/gpl-license + * Copyright 2004 James Bursa + */ + +/** \file + * Target independent plotting (GDK / GTK+ implementation). + */ + +#include +#include +#include "netsurf/desktop/plotters.h" +#include "netsurf/render/font.h" +#include "netsurf/utils/log.h" + + +extern GtkWidget *current_widget; +extern GdkDrawable *current_drawable; +extern GdkGC *current_gc; + + +static bool nsgtk_plot_clg(colour c); +static bool nsgtk_plot_rectangle(int x0, int y0, int width, int height, + colour c, bool dotted); +static bool nsgtk_plot_line(int x0, int y0, int x1, int y1, int width, + colour c, bool dotted, bool dashed); +static bool nsgtk_plot_polygon(int *p, unsigned int n, colour fill); +static bool nsgtk_plot_fill(int x0, int y0, int x1, int y1, colour c); +static bool nsgtk_plot_clip(int clip_x0, int clip_y0, + int clip_x1, int clip_y1); +static bool nsgtk_plot_text(int x, int y, struct font_data *font, + const char *text, size_t length, colour bg, colour c); +static bool nsgtk_plot_disc(int x, int y, int radius, colour colour); +static bool nsgtk_plot_bitmap(int x, int y, int width, int height, + struct bitmap *bitmap, colour bg); +static bool nsgtk_plot_bitmap_tile(int x, int y, int width, int height, + struct bitmap *bitmap, colour bg, + bool repeat_x, bool repeat_y); +static void nsgtk_set_colour(colour c); + + +struct plotter_table plot; + +const struct plotter_table nsgtk_plotters = { + nsgtk_plot_clg, + nsgtk_plot_rectangle, + nsgtk_plot_line, + nsgtk_plot_polygon, + nsgtk_plot_fill, + nsgtk_plot_clip, + nsgtk_plot_text, + nsgtk_plot_disc, + nsgtk_plot_bitmap, + nsgtk_plot_bitmap_tile +}; + + +bool nsgtk_plot_clg(colour c) +{ + return true; +} + + +bool nsgtk_plot_rectangle(int x0, int y0, int width, int height, + colour c, bool dotted) +{ + nsgtk_set_colour(c); + gdk_draw_rectangle(current_drawable, current_gc, + FALSE, x0, y0, width, height); + return true; +} + + +bool nsgtk_plot_line(int x0, int y0, int x1, int y1, int width, + colour c, bool dotted, bool dashed) +{ + nsgtk_set_colour(c); + gdk_draw_line(current_drawable, current_gc, + x0, y0, x1, y1); + return true; +} + + +bool nsgtk_plot_polygon(int *p, unsigned int n, colour fill) +{ + unsigned int i; + GdkPoint q[n]; + for (i = 0; i != n; i++) { + q[i].x = p[i * 2]; + q[i].y = p[i * 2 + 1]; + } + nsgtk_set_colour(fill); + gdk_draw_polygon(current_drawable, current_gc, + TRUE, q, n); + return true; +} + + +bool nsgtk_plot_fill(int x0, int y0, int x1, int y1, colour c) +{ + nsgtk_set_colour(c); + gdk_draw_rectangle(current_drawable, current_gc, + TRUE, x0, y0, x1 - x0, y1 - y0); + return true; +} + + +bool nsgtk_plot_clip(int clip_x0, int clip_y0, + int clip_x1, int clip_y1) +{ + GdkRectangle clip = { clip_x0, clip_y0, + clip_x1 - clip_x0 + 1, clip_y1 - clip_y0 + 1 }; + gdk_gc_set_clip_rectangle(current_gc, &clip); + return true; +} + + +bool nsgtk_plot_text(int x, int y, struct font_data *font, + const char *text, size_t length, colour bg, colour c) +{ + PangoContext *context; + PangoLayout *layout; + PangoLayoutLine *line; + GdkColor colour = { 0, + ((c & 0xff) << 8) | (c & 0xff), + (c & 0xff00) | (c & 0xff00 >> 8), + ((c & 0xff0000) >> 8) | (c & 0xff0000 >> 16) }; + + context = gtk_widget_get_pango_context(current_widget); + layout = pango_layout_new(context); + pango_layout_set_font_description(layout, + (const PangoFontDescription *) font->id); + pango_layout_set_text(layout, text, length); + + line = pango_layout_get_line(layout, 0); + + gdk_draw_layout_line_with_colors(current_drawable, current_gc, + x, y, line, &colour, 0); + + g_object_unref(layout); + + return true; +} + + +bool nsgtk_plot_disc(int x, int y, int radius, colour colour) +{ + return true; +} + + +bool nsgtk_plot_bitmap(int x, int y, int width, int height, + struct bitmap *bitmap, colour bg) +{ + GdkPixbuf *pixbuf = (GdkPixbuf *) bitmap; + + if (gdk_pixbuf_get_width(pixbuf) == width && + gdk_pixbuf_get_height(pixbuf) == height) { + gdk_draw_pixbuf(current_drawable, current_gc, + pixbuf, + 0, 0, + x, y, + width, height, + GDK_RGB_DITHER_NORMAL, 0, 0); + + } else { + GdkPixbuf *scaled; + scaled = gdk_pixbuf_scale_simple(pixbuf, + width, height, + GDK_INTERP_BILINEAR); + if (!scaled) + return false; + + gdk_draw_pixbuf(current_drawable, current_gc, + scaled, + 0, 0, + x, y, + width, height, + GDK_RGB_DITHER_NORMAL, 0, 0); + + g_object_unref(scaled); + } + + return true; +} + + +bool nsgtk_plot_bitmap_tile(int x, int y, int width, int height, + struct bitmap *bitmap, colour bg, + bool repeat_x, bool repeat_y) +{ + return true; +} + + +void nsgtk_set_colour(colour c) +{ + int r, g, b; + GdkColor colour; + + r = c & 0xff; + g = (c & 0xff00) >> 8; + b = (c & 0xff0000) >> 16; + + colour.red = r | (r << 8); + colour.green = g | (g << 8); + colour.blue = b | (b << 8); + colour.pixel = (r << 16) | (g << 8) | b; + + gdk_color_alloc(gtk_widget_get_colormap(current_widget), + &colour); + gdk_gc_set_foreground(current_gc, &colour); +} -- cgit v1.2.3