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author | Vincent Sanders <vince@netsurf-browser.org> | 2011-01-29 23:40:22 +0000 |
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committer | Vincent Sanders <vince@netsurf-browser.org> | 2011-01-29 23:40:22 +0000 |
commit | 42f89d4e0b35bbe768918305b624e20ef654d619 (patch) | |
tree | de555d8fc6dcf8c1ed61c73301552bf0a9e06b8e /gtk/gtk_plotters.c | |
parent | cd5950936ade8320f3801ed213df41153e573f8b (diff) | |
download | netsurf-42f89d4e0b35bbe768918305b624e20ef654d619.tar.gz netsurf-42f89d4e0b35bbe768918305b624e20ef654d619.tar.bz2 |
fixup gtk source file names
svn path=/trunk/netsurf/; revision=11529
Diffstat (limited to 'gtk/gtk_plotters.c')
-rw-r--r-- | gtk/gtk_plotters.c | 569 |
1 files changed, 0 insertions, 569 deletions
diff --git a/gtk/gtk_plotters.c b/gtk/gtk_plotters.c deleted file mode 100644 index 1428710ec..000000000 --- a/gtk/gtk_plotters.c +++ /dev/null @@ -1,569 +0,0 @@ -/* - * Copyright 2006 Rob Kendrick <rjek@rjek.com> - * Copyright 2005 James Bursa <bursa@users.sourceforge.net> - * - * 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 - * Target independent plotting (GDK / GTK+ and Cairo implementation). - * Can use either GDK drawing primitives (which are mostly passed straight - * to X to process, and thus accelerated) or Cairo drawing primitives (much - * higher quality, not accelerated). Cairo's fast enough, so it defaults - * to using it if it is available. It does this by checking for the - * CAIRO_VERSION define that the cairo headers set. - */ - -#include <math.h> -#include <assert.h> -#include <gdk/gdk.h> -#include <gtk/gtk.h> -#include "desktop/plotters.h" -#include "gtk/font_pango.h" -#include "gtk/gtk_plotters.h" -#include "gtk/gtk_scaffolding.h" -#include "render/font.h" -#include "utils/log.h" -#include "desktop/options.h" -#include "gtk/options.h" -#include "gtk/gtk_bitmap.h" - -#ifndef CAIRO_VERSION -#error "nsgtk requires cairo" -#endif - -GtkWidget *current_widget; -GdkDrawable *current_drawable; -GdkGC *current_gc; -cairo_t *current_cr; - -static GdkRectangle cliprect; -static float nsgtk_plot_scale = 1.0; - -struct plotter_table plot; - -/** set plotting scale factor. */ -void nsgtk_plot_set_scale(float s) -{ - nsgtk_plot_scale = s; -} - -/** get plotting scale factor. */ -float nsgtk_plot_get_scale(void) -{ - return nsgtk_plot_scale; -} - -/** Set cairo context colour to nsgtk colour. */ -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(gdk_colormap_get_system(), - &colour); - gdk_gc_set_foreground(current_gc, &colour); - - cairo_set_source_rgba(current_cr, r / 255.0, - g / 255.0, b / 255.0, 1.0); -} - -/** Plot a caret. - * - * @note It is assumed that the plotters have been set up. - */ -void nsgtk_plot_caret(int x, int y, int h) -{ - GdkColor colour; - - colour.red = 0; - colour.green = 0; - colour.blue = 0; - colour.pixel = 0; - gdk_color_alloc(gdk_colormap_get_system(), - &colour); - gdk_gc_set_foreground(current_gc, &colour); - - gdk_draw_line(current_drawable, current_gc, - x, y, - x, y + h - 1); -} - -/** Set cairo context to solid plot operation. */ -static inline void nsgtk_set_solid(void) -{ - double dashes = 0; - cairo_set_dash(current_cr, &dashes, 0, 0); -} - -/** Set cairo context to dotted plot operation. */ -static inline void nsgtk_set_dotted(void) -{ - double cdashes[] = { 1.0, 2.0 }; - cairo_set_dash(current_cr, cdashes, 2, 0); -} - -/** Set cairo context to dashed plot operation. */ -static inline void nsgtk_set_dashed(void) -{ - double cdashes[] = { 8.0, 2.0 }; - cairo_set_dash(current_cr, cdashes, 2, 0); -} - -/** Set clipping area for subsequent plot operations. */ -static bool nsgtk_plot_clip(int clip_x0, int clip_y0, int clip_x1, int clip_y1) -{ - cairo_reset_clip(current_cr); - cairo_rectangle(current_cr, clip_x0, clip_y0, - clip_x1 - clip_x0, clip_y1 - clip_y0); - cairo_clip(current_cr); - - cliprect.x = clip_x0; - cliprect.y = clip_y0; - cliprect.width = clip_x1 - clip_x0; - cliprect.height = clip_y1 - clip_y0; - gdk_gc_set_clip_rectangle(current_gc, &cliprect); - - return true; -} - - -static bool nsgtk_plot_arc(int x, int y, int radius, int angle1, int angle2, const plot_style_t *style) -{ - nsgtk_set_colour(style->fill_colour); - nsgtk_set_solid(); - - cairo_set_line_width(current_cr, 1); - cairo_arc(current_cr, x, y, radius, - (angle1 + 90) * (M_PI / 180), - (angle2 + 90) * (M_PI / 180)); - cairo_stroke(current_cr); - - return true; -} - -static bool nsgtk_plot_disc(int x, int y, int radius, const plot_style_t *style) -{ - if (style->fill_type != PLOT_OP_TYPE_NONE) { - nsgtk_set_colour(style->fill_colour); - nsgtk_set_solid(); - cairo_set_line_width(current_cr, 0); - cairo_arc(current_cr, x, y, radius, 0, M_PI * 2); - cairo_fill(current_cr); - cairo_stroke(current_cr); - } - - if (style->stroke_type != PLOT_OP_TYPE_NONE) { - nsgtk_set_colour(style->stroke_colour); - - switch (style->stroke_type) { - case PLOT_OP_TYPE_SOLID: /**< Solid colour */ - default: - nsgtk_set_solid(); - break; - - case PLOT_OP_TYPE_DOT: /**< Doted plot */ - nsgtk_set_dotted(); - break; - - case PLOT_OP_TYPE_DASH: /**< dashed plot */ - nsgtk_set_dashed(); - break; - } - - if (style->stroke_width == 0) - cairo_set_line_width(current_cr, 1); - else - cairo_set_line_width(current_cr, style->stroke_width); - - cairo_arc(current_cr, x, y, radius, 0, M_PI * 2); - - cairo_stroke(current_cr); - } - - return true; -} - -static bool nsgtk_plot_line(int x0, int y0, int x1, int y1, const plot_style_t *style) -{ - - nsgtk_set_colour(style->stroke_colour); - - switch (style->stroke_type) { - case PLOT_OP_TYPE_SOLID: /**< Solid colour */ - default: - nsgtk_set_solid(); - break; - - case PLOT_OP_TYPE_DOT: /**< Doted plot */ - nsgtk_set_dotted(); - break; - - case PLOT_OP_TYPE_DASH: /**< dashed plot */ - nsgtk_set_dashed(); - break; - } - - if (style->stroke_type != PLOT_OP_TYPE_NONE) { - nsgtk_set_colour(style->stroke_colour); - } - - if (style->stroke_width == 0) - cairo_set_line_width(current_cr, 1); - else - cairo_set_line_width(current_cr, style->stroke_width); - - /* core expects horizontal and vertical lines to be on pixels, not - * between pixels */ - cairo_move_to(current_cr, (x0 == x1) ? x0 + 0.5 : x0, - (y0 == y1) ? y0 + 0.5 : y0); - cairo_line_to(current_cr, (x0 == x1) ? x1 + 0.5 : x1, - (y0 == y1) ? y1 + 0.5 : y1); - cairo_stroke(current_cr); - - return true; -} - - -static bool nsgtk_plot_rectangle(int x0, int y0, int x1, int y1, const plot_style_t *style) -{ - if (style->fill_type != PLOT_OP_TYPE_NONE) { - nsgtk_set_colour(style->fill_colour); - nsgtk_set_solid(); - - cairo_set_line_width(current_cr, 0); - cairo_rectangle(current_cr, x0, y0, x1 - x0, y1 - y0); - cairo_fill(current_cr); - cairo_stroke(current_cr); - } - - if (style->stroke_type != PLOT_OP_TYPE_NONE) { - nsgtk_set_colour(style->stroke_colour); - - switch (style->stroke_type) { - case PLOT_OP_TYPE_SOLID: /**< Solid colour */ - default: - nsgtk_set_solid(); - break; - - case PLOT_OP_TYPE_DOT: /**< Doted plot */ - nsgtk_set_dotted(); - break; - - case PLOT_OP_TYPE_DASH: /**< dashed plot */ - nsgtk_set_dashed(); - break; - } - - if (style->stroke_width == 0) - cairo_set_line_width(current_cr, 1); - else - cairo_set_line_width(current_cr, style->stroke_width); - - cairo_rectangle(current_cr, x0 + 0.5, y0 + 0.5, x1 - x0, y1 - y0); - cairo_stroke(current_cr); - } - return true; -} - -static bool nsgtk_plot_polygon(const int *p, unsigned int n, const plot_style_t *style) -{ - unsigned int i; - - nsgtk_set_colour(style->fill_colour); - nsgtk_set_solid(); - - cairo_set_line_width(current_cr, 0); - cairo_move_to(current_cr, p[0], p[1]); - for (i = 1; i != n; i++) { - cairo_line_to(current_cr, p[i * 2], p[i * 2 + 1]); - } - cairo_fill(current_cr); - cairo_stroke(current_cr); - - return true; -} - - - - -static bool nsgtk_plot_text(int x, int y, const char *text, size_t length, - const plot_font_style_t *fstyle) -{ - return nsfont_paint(x, y, text, length, fstyle); -} - - - -static bool nsgtk_plot_pixbuf(int x, int y, int width, int height, - GdkPixbuf *pixbuf, colour bg) -{ - /* XXX: This currently ignores the background colour supplied. - * Does this matter? - */ - - int x0, y0, x1, y1; - int dsrcx, dsrcy, dwidth, dheight; - - /* 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 = dsrcy = 0; - dwidth = width; - dheight = height; - - /* Manually clip draw coordinates to area of image to be rendered */ - if (x0 > 0) { - /* Clip left */ - dsrcx = x0; - x += x0; - dwidth -= x0; - } - if (y0 > 0) { - /* Clip top */ - dsrcy = y0; - y += 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; - - /* Render the bitmap */ - if (gdk_pixbuf_get_width(pixbuf) == width && - gdk_pixbuf_get_height(pixbuf) == height) { - /* Bitmap is not scaled */ - /* Plot the bitmap */ - gdk_draw_pixbuf(current_drawable, current_gc, pixbuf, - dsrcx, dsrcy, x, y, dwidth, dheight, - GDK_RGB_DITHER_MAX, 0, 0); - - } else { - /* Bitmap is scaled */ - /* Get scale factors */ - double sx = (double)width / gdk_pixbuf_get_width(pixbuf); - double sy = (double)height / gdk_pixbuf_get_height(pixbuf); - - /* Create bitmap for scaled image portion */ - GdkPixbuf *scaled = gdk_pixbuf_new(GDK_COLORSPACE_RGB, true, 8, - dwidth, dheight); - /* Only scale up the portion of the bitmap that we are - * interested in rendering */ - gdk_pixbuf_scale(pixbuf, scaled, - 0, 0, dwidth, dheight, - -dsrcx, -dsrcy, sx, sy, - option_render_resample ? GDK_INTERP_BILINEAR : - GDK_INTERP_NEAREST); - if (!scaled) - return false; - - /* Plot the scaled bitmap */ - gdk_draw_pixbuf(current_drawable, current_gc, scaled, - 0, 0, x, y, dwidth, dheight, - GDK_RGB_DITHER_MAX, 0, 0); - - g_object_unref(scaled); - } - - return true; -} - -static bool nsgtk_plot_bitmap(int x, int y, int width, int height, - struct bitmap *bitmap, colour bg, - bitmap_flags_t flags) -{ - int doneheight = 0, donewidth = 0; - GdkPixbuf *primary; - GdkPixbuf *pretiled = NULL; - - 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 */ - primary = gtk_bitmap_get_primary(bitmap); - return nsgtk_plot_pixbuf(x, y, width, height, primary, bg); - } - - if (repeat_x && !repeat_y) - pretiled = gtk_bitmap_get_pretile_x(bitmap); - if (repeat_x && repeat_y) - pretiled = gtk_bitmap_get_pretile_xy(bitmap); - if (!repeat_x && repeat_y) - pretiled = gtk_bitmap_get_pretile_y(bitmap); - - assert(pretiled != NULL); - - primary = gtk_bitmap_get_primary(bitmap); - /* use the primary and pretiled widths to scale the w/h provided */ - width *= gdk_pixbuf_get_width(pretiled); - width /= gdk_pixbuf_get_width(primary); - height *= gdk_pixbuf_get_height(pretiled); - height /= gdk_pixbuf_get_height(primary); - - 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_plot_pixbuf(donewidth, doneheight, - width, height, pretiled, bg); - donewidth += width; - if (!repeat_x) break; - } - doneheight += height; - if (!repeat_y) break; - } - - return true; -} - -static bool nsgtk_plot_path(const float *p, unsigned int n, colour fill, float width, - colour c, const float transform[6]) -{ - unsigned int i; - cairo_matrix_t old_ctm, n_ctm; - - if (n == 0) - return true; - - if (p[0] != PLOTTER_PATH_MOVE) { - LOG(("Path does not start with move")); - return false; - } - - - /* Save CTM */ - cairo_get_matrix(current_cr, &old_ctm); - - /* Set up line style and width */ - cairo_set_line_width(current_cr, 1); - nsgtk_set_solid(); - - /* Load new CTM */ - n_ctm.xx = transform[0]; - n_ctm.yx = transform[1]; - n_ctm.xy = transform[2]; - n_ctm.yy = transform[3]; - n_ctm.x0 = transform[4]; - n_ctm.y0 = transform[5]; - - cairo_set_matrix(current_cr, &n_ctm); - - /* Construct path */ - for (i = 0; i < n; ) { - if (p[i] == PLOTTER_PATH_MOVE) { - cairo_move_to(current_cr, p[i+1], p[i+2]); - i += 3; - } else if (p[i] == PLOTTER_PATH_CLOSE) { - cairo_close_path(current_cr); - i++; - } else if (p[i] == PLOTTER_PATH_LINE) { - cairo_line_to(current_cr, p[i+1], p[i+2]); - i += 3; - } else if (p[i] == PLOTTER_PATH_BEZIER) { - cairo_curve_to(current_cr, p[i+1], p[i+2], - p[i+3], p[i+4], - p[i+5], p[i+6]); - i += 7; - } else { - LOG(("bad path command %f", p[i])); - /* Reset matrix for safety */ - cairo_set_matrix(current_cr, &old_ctm); - return false; - } - } - - /* Restore original CTM */ - cairo_set_matrix(current_cr, &old_ctm); - - /* Now draw path */ - if (fill != NS_TRANSPARENT) { - nsgtk_set_colour(fill); - - if (c != NS_TRANSPARENT) { - /* Fill & Stroke */ - cairo_fill_preserve(current_cr); - nsgtk_set_colour(c); - cairo_stroke(current_cr); - } else { - /* Fill only */ - cairo_fill(current_cr); - } - } else if (c != NS_TRANSPARENT) { - /* Stroke only */ - nsgtk_set_colour(c); - cairo_stroke(current_cr); - } - - return true; -} - -/** GTK plotter table */ -const struct plotter_table nsgtk_plotters = { - .clip = nsgtk_plot_clip, - .arc = nsgtk_plot_arc, - .disc = nsgtk_plot_disc, - .line = nsgtk_plot_line, - .rectangle = nsgtk_plot_rectangle, - .polygon = nsgtk_plot_polygon, - .path = nsgtk_plot_path, - .bitmap = nsgtk_plot_bitmap, - .text = nsgtk_plot_text, - .option_knockout = true -}; - - - |