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-rw-r--r--gtk/plotters.c538
1 files changed, 0 insertions, 538 deletions
diff --git a/gtk/plotters.c b/gtk/plotters.c
deleted file mode 100644
index 1d8c19827..000000000
--- a/gtk/plotters.c
+++ /dev/null
@@ -1,538 +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
- * GTK and Cairo plotter implementations.
- *
- * Uses Cairo drawing primitives to render browser output.
- * \todo remove the use of the gdk structure for clipping
- */
-
-#include <math.h>
-#include <assert.h>
-#include <gdk/gdk.h>
-#include <gtk/gtk.h>
-
-#include "utils/log.h"
-#include "utils/utils.h"
-#include "desktop/plotters.h"
-#include "utils/nsoption.h"
-
-#include "gtk/layout_pango.h"
-#include "gtk/plotters.h"
-#include "gtk/scaffolding.h"
-#include "gtk/bitmap.h"
-
-GtkWidget *current_widget;
-cairo_t *current_cr;
-
-static GdkRectangle cliprect;
-
-struct plotter_table plot;
-
-/** Set cairo context colour to nsgtk colour. */
-void nsgtk_set_colour(colour c)
-{
- cairo_set_source_rgba(current_cr,
- (c & 0xff) / 255.0,
- ((c & 0xff00) >> 8) / 255.0,
- ((c & 0xff0000) >> 16) / 255.0,
- 1.0);
-}
-
-/** 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(const struct rect *clip)
-{
- 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;
-
- 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;
-}
-
-/** Plot a caret.
- *
- * @note It is assumed that the plotters have been set up.
- */
-void nsgtk_plot_caret(int x, int y, int h)
-{
- nsgtk_set_solid(); /* solid line */
- nsgtk_set_colour(0); /* black */
- cairo_set_line_width(current_cr, 1); /* thin line */
-
- /* core expects horizontal and vertical lines to be on pixels, not
- * between pixels */
- cairo_move_to(current_cr, x + 0.5, y);
- cairo_line_to(current_cr, x + 0.5, y + h - 1);
- cairo_stroke(current_cr);
-}
-
-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 struct plot_font_style *fstyle)
-{
- return nsfont_paint(x, y, text, length, fstyle);
-}
-
-
-
-static bool nsgtk_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(current_cr, bmsurface, x, y);
- cairo_rectangle(current_cr, dsrcx, dsrcy, dwidth, dheight);
- cairo_fill(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(current_cr, bitmap->scsurface, x, y);
- cairo_rectangle(current_cr, dsrcx, dsrcy, dwidth, dheight);
- cairo_fill(current_cr);
-
-
- }
-
- 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;
- bool repeat_x = (flags & BITMAPF_REPEAT_X);
- bool repeat_y = (flags & BITMAPF_REPEAT_Y);
-
- /* Bail early if we can */
- if (width == 0 || height == 0)
- /* Nothing to plot */
- return true;
-
- if (!(repeat_x || repeat_y)) {
- /* Not repeating at all, so just pass it on */
- return nsgtk_plot_pixbuf(x, y, width, height, bitmap, bg);
- }
-
- 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, bitmap, 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
-};
-
-
-
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