mirror of
https://github.com/netsurf-browser/netsurf
synced 2024-11-23 06:51:26 +03:00
280 lines
7.4 KiB
C
280 lines
7.4 KiB
C
/*
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* Copyright 2011 Daniel Silverstone <dsilvers@digital-scurf.org>
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*
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* This file is part of NetSurf, http://www.netsurf-browser.org/
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*
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* NetSurf is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* NetSurf is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdio.h>
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#include "utils/utils.h"
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#include "utils/errors.h"
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#include "netsurf/plotters.h"
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/**
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* \brief Sets a clip rectangle for subsequent plot operations.
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*
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* \param ctx The current redraw context.
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* \param clip The rectangle to limit all subsequent plot
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* operations within.
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* \return NSERROR_OK on success else error code.
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*/
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static nserror
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monkey_plot_clip(const struct redraw_context *ctx, const struct rect *clip)
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{
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fprintf(stdout,
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"PLOT CLIP X0 %d Y0 %d X1 %d Y1 %d\n",
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clip->x0, clip->y0, clip->x1, clip->y1);
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return NSERROR_OK;
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}
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/**
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* Plots an arc
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*
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* plot an arc segment around (x,y), anticlockwise from angle1
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* to angle2. Angles are measured anticlockwise from
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* horizontal, in degrees.
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*
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* \param ctx The current redraw context.
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* \param style Style controlling the arc plot.
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* \param x The x coordinate of the arc.
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* \param y The y coordinate of the arc.
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* \param radius The radius of the arc.
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* \param angle1 The start angle of the arc.
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* \param angle2 The finish angle of the arc.
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* \return NSERROR_OK on success else error code.
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*/
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static nserror
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monkey_plot_arc(const struct redraw_context *ctx,
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const plot_style_t *style,
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int x, int y, int radius, int angle1, int angle2)
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{
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fprintf(stdout,
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"PLOT ARC X %d Y %d RADIUS %d ANGLE1 %d ANGLE2 %d\n",
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x, y, radius, angle1, angle2);
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return NSERROR_OK;
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}
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/**
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* Plots a circle
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*
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* Plot a circle centered on (x,y), which is optionally filled.
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*
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* \param ctx The current redraw context.
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* \param style Style controlling the circle plot.
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* \param x x coordinate of circle centre.
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* \param y y coordinate of circle centre.
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* \param radius circle radius.
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* \return NSERROR_OK on success else error code.
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*/
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static nserror
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monkey_plot_disc(const struct redraw_context *ctx,
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const plot_style_t *style,
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int x, int y, int radius)
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{
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fprintf(stdout,
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"PLOT DISC X %d Y %d RADIUS %d\n",
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x, y, radius);
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return NSERROR_OK;
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}
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/**
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* Plots a line
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*
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* plot a line from (x0,y0) to (x1,y1). Coordinates are at
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* centre of line width/thickness.
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*
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* \param ctx The current redraw context.
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* \param style Style controlling the line plot.
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* \param line A rectangle defining the line to be drawn
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* \return NSERROR_OK on success else error code.
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*/
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static nserror
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monkey_plot_line(const struct redraw_context *ctx,
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const plot_style_t *style,
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const struct rect *line)
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{
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fprintf(stdout,
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"PLOT LINE X0 %d Y0 %d X1 %d Y1 %d\n",
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line->x0, line->y0, line->x1, line->y1);
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return NSERROR_OK;
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}
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/**
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* Plots a rectangle.
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*
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* The rectangle can be filled an outline or both controlled
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* by the plot style The line can be solid, dotted or
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* dashed. Top left corner at (x0,y0) and rectangle has given
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* width and height.
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*
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* \param ctx The current redraw context.
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* \param style Style controlling the rectangle plot.
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* \param rect A rectangle defining the line to be drawn
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* \return NSERROR_OK on success else error code.
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*/
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static nserror
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monkey_plot_rectangle(const struct redraw_context *ctx,
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const plot_style_t *style,
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const struct rect *rect)
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{
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fprintf(stdout,
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"PLOT RECT X0 %d Y0 %d X1 %d Y1 %d\n",
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rect->x0, rect->y0, rect->x1, rect->y1);
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return NSERROR_OK;
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}
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/**
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* Plot a polygon
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*
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* Plots a filled polygon with straight lines between
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* points. The lines around the edge of the ploygon are not
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* plotted. The polygon is filled with the non-zero winding
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* rule.
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*
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* \param ctx The current redraw context.
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* \param style Style controlling the polygon plot.
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* \param p verticies of polygon
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* \param n number of verticies.
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* \return NSERROR_OK on success else error code.
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*/
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static nserror
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monkey_plot_polygon(const struct redraw_context *ctx,
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const plot_style_t *style,
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const int *p,
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unsigned int n)
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{
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fprintf(stdout,
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"PLOT POLYGON VERTICIES %d\n",
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n);
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return NSERROR_OK;
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}
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/**
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* Plots a path.
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*
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* Path plot consisting of cubic Bezier curves. Line and fill colour is
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* controlled by the plot style.
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*
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* \param ctx The current redraw context.
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* \param pstyle Style controlling the path plot.
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* \param p elements of path
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* \param n nunber of elements on path
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* \param width The width of the path
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* \param transform A transform to apply to the path.
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* \return NSERROR_OK on success else error code.
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*/
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static nserror
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monkey_plot_path(const struct redraw_context *ctx,
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const plot_style_t *pstyle,
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const float *p,
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unsigned int n,
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float width,
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const float transform[6])
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{
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fprintf(stdout,
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"PLOT PATH VERTICIES %d WIDTH %f\n",
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n, width);
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return NSERROR_OK;
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}
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/**
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* Plot a bitmap
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*
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* Tiled plot of a bitmap image. (x,y) gives the top left
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* coordinate of an explicitly placed tile. From this tile the
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* image can repeat in all four directions -- up, down, left
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* and right -- to the extents given by the current clip
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* rectangle.
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*
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* The bitmap_flags say whether to tile in the x and y
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* directions. If not tiling in x or y directions, the single
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* image is plotted. The width and height give the dimensions
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* the image is to be scaled to.
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*
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* \param ctx The current redraw context.
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* \param bitmap The bitmap to plot
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* \param x The x coordinate to plot the bitmap
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* \param y The y coordiante to plot the bitmap
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* \param width The width of area to plot the bitmap into
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* \param height The height of area to plot the bitmap into
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* \param bg the background colour to alpha blend into
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* \param flags the flags controlling the type of plot operation
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* \return NSERROR_OK on success else error code.
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*/
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static nserror
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monkey_plot_bitmap(const struct redraw_context *ctx,
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struct bitmap *bitmap,
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int x, int y,
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int width,
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int height,
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colour bg,
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bitmap_flags_t flags)
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{
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fprintf(stdout,
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"PLOT BITMAP X %d Y %d WIDTH %d HEIGHT %d\n",
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x, y, width, height);
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return NSERROR_OK;
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}
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/**
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* Text plotting.
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*
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* \param ctx The current redraw context.
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* \param fstyle plot style for this text
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* \param x x coordinate
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* \param y y coordinate
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* \param text UTF-8 string to plot
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* \param length length of string, in bytes
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* \return NSERROR_OK on success else error code.
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*/
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static nserror
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monkey_plot_text(const struct redraw_context *ctx,
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const struct plot_font_style *fstyle,
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int x,
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int y,
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const char *text,
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size_t length)
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{
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fprintf(stdout,
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"PLOT TEXT X %d Y %d STR %*s\n",
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x, y, (int)length, text);
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return NSERROR_OK;
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}
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/** monkey plotter operations table */
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static const struct plotter_table plotters = {
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.clip = monkey_plot_clip,
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.arc = monkey_plot_arc,
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.disc = monkey_plot_disc,
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.line = monkey_plot_line,
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.rectangle = monkey_plot_rectangle,
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.polygon = monkey_plot_polygon,
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.path = monkey_plot_path,
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.bitmap = monkey_plot_bitmap,
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.text = monkey_plot_text,
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.option_knockout = true,
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};
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const struct plotter_table* monkey_plotters = &plotters;
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