From cadb974ea98aeda9c16e51e263aab442d82f2014 Mon Sep 17 00:00:00 2001 From: Benjamin Otte Date: Fri, 15 Oct 2010 01:29:16 +0200 Subject: gnome-canvas: Remove GnomeCanvasPathDef It's not needed anymore as it has practically been replaced by cairo_path_t. --- libgnomecanvas/Makefile.am | 2 - libgnomecanvas/gnome-canvas-path-def.c | 1293 -------------------------------- libgnomecanvas/gnome-canvas-path-def.h | 96 --- libgnomecanvas/gnome-canvas-shape.h | 1 - 4 files changed, 1392 deletions(-) delete mode 100644 libgnomecanvas/gnome-canvas-path-def.c delete mode 100644 libgnomecanvas/gnome-canvas-path-def.h diff --git a/libgnomecanvas/Makefile.am b/libgnomecanvas/Makefile.am index 36025ea04b..939712f37a 100644 --- a/libgnomecanvas/Makefile.am +++ b/libgnomecanvas/Makefile.am @@ -24,7 +24,6 @@ libgnomecanvasinclude_HEADERS = \ gailcanvaswidget.h \ gailcanvaswidgetfactory.h \ gnome-canvas-i18n.h \ - gnome-canvas-path-def.h \ gnome-canvas-pixbuf.h \ gnome-canvas-rect.h \ gnome-canvas-rich-text.h \ @@ -45,7 +44,6 @@ libgnomecanvas_la_SOURCES = \ gailcanvastextfactory.c \ gailcanvaswidget.c \ gailcanvaswidgetfactory.c \ - gnome-canvas-path-def.c \ gnome-canvas-pixbuf.c \ gnome-canvas-rect.c \ gnome-canvas-rich-text.c \ diff --git a/libgnomecanvas/gnome-canvas-path-def.c b/libgnomecanvas/gnome-canvas-path-def.c deleted file mode 100644 index 02ff22b957..0000000000 --- a/libgnomecanvas/gnome-canvas-path-def.c +++ /dev/null @@ -1,1293 +0,0 @@ -#define GNOME_CANVAS_PATH_DEF_C - -/* - * GnomeCanvasPathDef - * - * (C) 1999-2000 Lauris Kaplinski - * Released under LGPL - * - * Authors: Lauris Kaplinski - * Rusty Conover - * - * Copyright 1999-2001 Ximian Inc. and authors. - */ - -#include -#include -#include "gnome-canvas-path-def.h" - -/* The number of points to allocate at once */ -#define GNOME_CANVAS_PATH_DEF_LENSTEP 32 - -struct _GnomeCanvasPathDef { - gint refcount; - ArtBpath * bpath; - gint end; /* ART_END position */ - gint length; /* Num allocated Bpaths */ - gint substart; /* subpath start */ - gdouble x, y; /* previous moveto position */ - guint sbpath : 1; /* Bpath is static */ - guint hascpt : 1; /* Currentpoint is defined */ - guint posset : 1; /* Previous was moveto */ - guint moving : 1; /* Bpath end is moving */ - guint allclosed : 1; /* All subpaths are closed */ - guint allopen : 1; /* All subpaths are open */ -}; - -static gboolean sp_bpath_good (ArtBpath * bpath); -static ArtBpath * sp_bpath_check_subpath (ArtBpath * bpath); -static gint sp_bpath_length (const ArtBpath * bpath); -static gboolean sp_bpath_all_closed (const ArtBpath * bpath); -static gboolean sp_bpath_all_open (const ArtBpath * bpath); - -/* Boxed Type Support */ - -static GnomeCanvasPathDef * -path_def_boxed_copy (GnomeCanvasPathDef * path_def) -{ - if (path_def) - gnome_canvas_path_def_ref (path_def); - return path_def; -} - -GType -gnome_canvas_path_def_get_type (void) -{ - static GType t = 0; - if (t == 0) - t = g_boxed_type_register_static - ("GnomeCanvasPathDef", - (GBoxedCopyFunc)path_def_boxed_copy, - (GBoxedFreeFunc)gnome_canvas_path_def_unref); - return t; -} - -/* Constructors */ - -/** - * gnome_canvas_path_def_new: - * - * This function creates a new empty #gnome_canvas_path_def. - * - * Returns: the new canvas path definition. - */ -GnomeCanvasPathDef * -gnome_canvas_path_def_new (void) -{ - GnomeCanvasPathDef * path; - - path = gnome_canvas_path_def_new_sized (GNOME_CANVAS_PATH_DEF_LENSTEP); - - return path; -} - -/** - * gnome_canvas_path_def_new_sized: - * @length: number of points to allocate for the path - * - * This function creates a new #gnome_canvas_path_def with @length - * number of points allocated. It is useful, if you know the exact - * number of points in path, so you can avoid automatic point - * array reallocation. - * - * Returns: the new canvas path definition - */ -GnomeCanvasPathDef * -gnome_canvas_path_def_new_sized (gint length) -{ - GnomeCanvasPathDef * path; - - g_return_val_if_fail (length > 0, NULL); - - path = g_new (GnomeCanvasPathDef, 1); - - path->refcount = 1; - path->bpath = art_new (ArtBpath, length); - path->end = 0; - path->bpath[path->end].code = ART_END; - path->length = length; - path->sbpath = FALSE; - path->hascpt = FALSE; - path->posset = FALSE; - path->moving = FALSE; - path->allclosed = TRUE; - path->allopen = TRUE; - - return path; -} - -/** - * gnome_canvas_path_def_new_from_bpath: - * @bpath: libart bezier path - * - * This function constructs a new #gnome_canvas_path_def and uses the - * passed @bpath as the contents. The passed bpath should not be - * static as the path definition is editable when constructed with - * this function. Also, passed bpath will be freed with art_free, if - * path is destroyed, so use it with caution. - * For constructing a #gnome_canvas_path_def - * from (non-modifiable) bpath use - * #gnome_canvas_path_def_new_from_static_bpath. - * - * Returns: the new canvas path definition that is populated with the - * passed bezier path, if the @bpath is bad NULL is returned. - */ -GnomeCanvasPathDef * -gnome_canvas_path_def_new_from_bpath (ArtBpath * bpath) -{ - GnomeCanvasPathDef * path; - - g_return_val_if_fail (sp_bpath_good (bpath), NULL); - - path = g_new (GnomeCanvasPathDef, 1); - - path->refcount = 1; - path->bpath = bpath; - path->length = sp_bpath_length (bpath); - path->end = path->length - 1; - path->sbpath = FALSE; - path->hascpt = FALSE; - path->posset = FALSE; - path->moving = FALSE; - path->allclosed = sp_bpath_all_closed (bpath); - path->allopen = sp_bpath_all_open (bpath); - - return path; -} - -/** - * gnome_canvas_path_def_new_from_static_bpath: - * @bpath: libart bezier path - * - * This function constructs a new #gnome_canvas_path_def and - * references the passed @bpath as its contents. The - * #gnome_canvas_path_def returned from this function is to be - * considered static and non-editable (meaning you cannot change the - * path from what you passed in @bpath). The bpath will not be freed, - * if path will be destroyed, so use it with caution. - * - * Returns: the new canvas path definition that references the passed - * @bpath, or if the path is bad NULL is returned. - */ -GnomeCanvasPathDef * -gnome_canvas_path_def_new_from_static_bpath (ArtBpath * bpath) -{ - GnomeCanvasPathDef * path; - - g_return_val_if_fail (sp_bpath_good (bpath), NULL); - - path = g_new (GnomeCanvasPathDef, 1); - - path->refcount = 1; - path->bpath = bpath; - path->length = sp_bpath_length (bpath); - path->end = path->length - 1; - path->sbpath = TRUE; - path->hascpt = FALSE; - path->posset = FALSE; - path->moving = FALSE; - path->allclosed = sp_bpath_all_closed (bpath); - path->allopen = sp_bpath_all_open (bpath); - - return path; -} - -/** - * gnome_canvas_path_def_new_from_foreign_bpath: - * @bpath: libart bezier path - * - * This function constructs a new #gnome_canvas_path_def and - * duplicates the contents of the passed @bpath in the definition. - * - * Returns: the newly created #gnome_canvas_path_def or NULL if the - * path is invalid. - */ -GnomeCanvasPathDef * -gnome_canvas_path_def_new_from_foreign_bpath (ArtBpath * bpath) -{ - GnomeCanvasPathDef * path; - gint length; - - g_return_val_if_fail (sp_bpath_good (bpath), NULL); - - length = sp_bpath_length (bpath); - - path = gnome_canvas_path_def_new_sized (length); - memcpy (path->bpath, bpath, sizeof (ArtBpath) * length); - path->end = length - 1; - path->allclosed = sp_bpath_all_closed (bpath); - path->allopen = sp_bpath_all_open (bpath); - - return path; -} - -/** - * gnome_canvas_path_def_ref: - * @path: a GnomeCanvasPathDef - * - * Increment the reference count of the GnomeCanvasPathDef. - */ -void -gnome_canvas_path_def_ref (GnomeCanvasPathDef * path) -{ - g_return_if_fail (path != NULL); - - path->refcount++; -} - -/** - * gnome_canvas_path_def_finish: - * @path: a GnomeCanvasPathDef - * - * Trims dynamic point array to exact length of path. - */ -void -gnome_canvas_path_def_finish (GnomeCanvasPathDef * path) -{ - g_return_if_fail (path != NULL); - g_return_if_fail (path->sbpath); - - if ((path->end + 1) < path->length) { - path->bpath = art_renew (path->bpath, ArtBpath, path->end + 1); - path->length = path->end + 1; - } - - path->hascpt = FALSE; - path->posset = FALSE; - path->moving = FALSE; -} -/** - * gnome_canvas_path_def_ensure_space: - * @path: a GnomeCanvasPathDef - * @space: number of points to guarantee are allocated at the end of - * the path. - * - * This function ensures that enough space for @space points is - * allocated at the end of the path. - */ -void -gnome_canvas_path_def_ensure_space (GnomeCanvasPathDef * path, gint space) -{ - g_return_if_fail (path != NULL); - g_return_if_fail (space > 0); - - if (path->end + space < path->length) return; - - if (space < GNOME_CANVAS_PATH_DEF_LENSTEP) space = GNOME_CANVAS_PATH_DEF_LENSTEP; - - path->bpath = art_renew (path->bpath, ArtBpath, path->length + space); - - path->length += space; -} - -/** - * gnome_canvas_path_def_copy: - * @dst: a GnomeCanvasPathDef where the contents of @src will be stored. - * @src: a GnomeCanvasPathDef whose contents will be copied it @src. - * - * This function copies the contents @src to @dest. The old @dest path - * array is freed and @dest is marked as non-static (editable), - * regardless of the status of @src. - */ -void -gnome_canvas_path_def_copy (GnomeCanvasPathDef * dst, const GnomeCanvasPathDef * src) -{ - g_return_if_fail (dst != NULL); - g_return_if_fail (src != NULL); - - if (!dst->sbpath) g_free (dst->bpath); - - memcpy (dst, src, sizeof (GnomeCanvasPathDef)); - - dst->bpath = g_new (ArtBpath, src->end + 1); - memcpy (dst->bpath, src->bpath, (src->end + 1) * sizeof (ArtBpath)); - - dst->sbpath = FALSE; -} - -/** - * gnome_canvas_path_def_duplicate: - * @path: a GnomeCanvasPathDef to duplicate - * - * This function duplicates the passed @path. The new path is - * marked as non-static regardless of the state of original. - * - * Returns: a GnomeCanvasPathDef which is a duplicate of @path. - */ -GnomeCanvasPathDef * -gnome_canvas_path_def_duplicate (const GnomeCanvasPathDef * path) -{ - GnomeCanvasPathDef * new; - - g_return_val_if_fail (path != NULL, NULL); - - new = gnome_canvas_path_def_new_from_foreign_bpath (path->bpath); - new->x = path->x; - new->y = path->y; - new->hascpt = path->hascpt; - new->posset = path->posset; - new->moving = path->moving; - new->allclosed = path->allclosed; - new->allopen = path->allopen; - - return new; -} - -/** - * gnome_canvas_path_def_concat: - * @list: a GSList of GnomeCanvasPathDefs to concatenate into one new - * path. - * - * This function concatenates a list of GnomeCanvasPathDefs into one - * newly created GnomeCanvasPathDef. - * - * Returns: a new GnomeCanvasPathDef - */ -GnomeCanvasPathDef * -gnome_canvas_path_def_concat (const GSList * list) -{ - GnomeCanvasPathDef * c, * new; - ArtBpath * bp; - const GSList * l; - gint length; - - g_return_val_if_fail (list != NULL, NULL); - - length = 1; - - for (l = list; l != NULL; l = l->next) { - c = (GnomeCanvasPathDef *) l->data; - length += c->end; - } - - new = gnome_canvas_path_def_new_sized (length); - - bp = new->bpath; - - for (l = list; l != NULL; l = l->next) { - c = (GnomeCanvasPathDef *) l->data; - memcpy (bp, c->bpath, c->end * sizeof (ArtBpath)); - bp += c->end; - } - - bp->code = ART_END; - - new->end = length - 1; - - new->allclosed = sp_bpath_all_closed (new->bpath); - new->allopen = sp_bpath_all_open (new->bpath); - - return new; -} - -/** - * gnome_canvas_path_def_split: - * @path: a GnomeCanvasPathDef - * - * This function splits the passed @path into a list of - * GnomeCanvasPathDefs which represent each segment of the origional - * path. The path is split when ever an ART_MOVETO or ART_MOVETO_OPEN - * is encountered. The closedness of resulting paths is set accordingly - * to closedness of corresponding segment. - * - * Returns: a list of GnomeCanvasPathDef(s). - */ -GSList * -gnome_canvas_path_def_split (const GnomeCanvasPathDef * path) -{ - GnomeCanvasPathDef * new; - GSList * l; - gint p, i; - - g_return_val_if_fail (path != NULL, NULL); - - p = 0; - l = NULL; - - while (p < path->end) { - i = 1; - while ((path->bpath[p + i].code == ART_LINETO) || - (path->bpath[p + i].code == ART_CURVETO)) - i++; - new = gnome_canvas_path_def_new_sized (i + 1); - memcpy (new->bpath, path->bpath + p, i * sizeof (ArtBpath)); - new->end = i; - new->bpath[i].code = ART_END; - new->allclosed = (new->bpath->code == ART_MOVETO); - new->allopen = (new->bpath->code == ART_MOVETO_OPEN); - l = g_slist_append (l, new); - p += i; - } - - return l; -} - -/** - * gnome_canvas_path_def_open_parts: - * @path: a GnomeCanvasPathDef - * - * This function creates a new GnomeCanvasPathDef that contains all of - * the open segments on the passed @path. - * - * Returns: a new GnomeCanvasPathDef that contains all of the open segemtns in @path. - */ -GnomeCanvasPathDef * -gnome_canvas_path_def_open_parts (const GnomeCanvasPathDef * path) -{ - GnomeCanvasPathDef * new; - ArtBpath * p, * d; - gint len; - gboolean closed; - - g_return_val_if_fail (path != NULL, NULL); - - closed = TRUE; - len = 0; - - for (p = path->bpath; p->code != ART_END; p++) { - switch (p->code) { - case ART_MOVETO_OPEN: - closed = FALSE; - len++; - break; - case ART_MOVETO: - closed = TRUE; - break; - case ART_LINETO: - case ART_CURVETO: - if (!closed) len++; - break; - default: - g_assert_not_reached (); - } - } - - new = gnome_canvas_path_def_new_sized (len + 1); - - closed = TRUE; - d = new->bpath; - - for (p = path->bpath; p->code != ART_END; p++) { - switch (p->code) { - case ART_MOVETO_OPEN: - closed = FALSE; - *d++ = *p; - break; - case ART_MOVETO: - closed = TRUE; - break; - case ART_LINETO: - case ART_CURVETO: - if (!closed) *d++ = *p; - break; - default: - g_assert_not_reached (); - } - } - - d->code = ART_END; - - new->end = len; - new->allclosed = FALSE; - new->allopen = TRUE; - - return new; -} - -/** - * gnome_canvas_path_def_closed_parts: - * @path: a GnomeCanvasPathDef - * - * This function returns a new GnomeCanvasPathDef that contains the - * all of close parts of passed @path. - * - * Returns: a new GnomeCanvasPathDef that contains all of the closed - * parts of passed @path. - */ -GnomeCanvasPathDef * -gnome_canvas_path_def_closed_parts (const GnomeCanvasPathDef * path) -{ - GnomeCanvasPathDef * new; - ArtBpath * p, * d; - gint len; - gboolean closed; - - g_return_val_if_fail (path != NULL, NULL); - - closed = FALSE; - len = 0; - - for (p = path->bpath; p->code != ART_END; p++) { - switch (p->code) { - case ART_MOVETO_OPEN: - closed = FALSE; - break; - case ART_MOVETO: - closed = TRUE; - len++; - break; - case ART_LINETO: - case ART_CURVETO: - if (closed) len++; - break; - default: - g_assert_not_reached (); - } - } - - new = gnome_canvas_path_def_new_sized (len + 1); - - closed = FALSE; - d = new->bpath; - - for (p = path->bpath; p->code != ART_END; p++) { - switch (p->code) { - case ART_MOVETO_OPEN: - closed = FALSE; - break; - case ART_MOVETO: - closed = TRUE; - *d++ = *p; - break; - case ART_LINETO: - case ART_CURVETO: - if (closed) *d++ = *p; - break; - default: - g_assert_not_reached (); - } - } - - d->code = ART_END; - - new->end = len; - new->allclosed = TRUE; - new->allopen = FALSE; - - return new; -} - -/** - * gnome_canvas_path_def_close_all: - * @path: a GnomeCanvasPathDef - * - * This function closes all of the open segments in the passed path - * and returns a new GnomeCanvasPathDef. - * - * Returns: a GnomeCanvasPathDef that contains the contents of @path - * but has modified the path is fully closed - */ -GnomeCanvasPathDef * -gnome_canvas_path_def_close_all (const GnomeCanvasPathDef * path) -{ - GnomeCanvasPathDef * new; - ArtBpath * p, * d, * start; - gint len; - gboolean closed; - - g_return_val_if_fail (path != NULL, NULL); - - if (path->allclosed) { - new = gnome_canvas_path_def_duplicate (path); - return new; - } - - len = 1; - - /* Count MOVETO_OPEN */ - - for (p = path->bpath; p->code != ART_END; p++) { - len += 1; - if (p->code == ART_MOVETO_OPEN) len += 2; - } - - new = gnome_canvas_path_def_new_sized (len); - - d = start = new->bpath; - closed = TRUE; - - for (p = path->bpath; p->code != ART_END; p++) { - switch (p->code) { - case ART_MOVETO_OPEN: - start = p; - closed = FALSE; - case ART_MOVETO: - if ((!closed) && ((start->x3 != p->x3) || (start->y3 != p->y3))) { - d->code = ART_LINETO; - d->x3 = start->x3; - d->y3 = start->y3; - d++; - } - if (p->code == ART_MOVETO) closed = TRUE; - d->code = ART_MOVETO; - d->x3 = p->x3; - d->y3 = p->y3; - d++; - break; - case ART_LINETO: - case ART_CURVETO: - *d++ = *p; - break; - default: - g_assert_not_reached (); - } - } - - if ((!closed) && ((start->x3 != p->x3) || (start->y3 != p->y3))) { - d->code = ART_LINETO; - d->x3 = start->x3; - d->y3 = start->y3; - d++; - } - - d->code = ART_END; - - new->end = d - new->bpath; - new->allclosed = TRUE; - new->allopen = FALSE; - - return new; -} - -/* Destructor */ - -/** - * gnome_canvas_path_def_unref: - * @path: a GnomeCanvasPathDef - * - * Decrease the reference count of the passed @path. If the reference - * count is < 1 the path is deallocated. - */ -void -gnome_canvas_path_def_unref (GnomeCanvasPathDef * path) -{ - g_return_if_fail (path != NULL); - - if (--path->refcount < 1) { - if ((!path->sbpath) && (path->bpath)) art_free (path->bpath); - g_free (path); - } -} - -/* Methods */ -/** - * gnome_canvas_path_def_reset: - * @path: a GnomeCanvasPathDef - * - * This function clears the contents of the passed @path. - */ -void -gnome_canvas_path_def_reset (GnomeCanvasPathDef * path) -{ - g_return_if_fail (path != NULL); - g_return_if_fail (!path->sbpath); - - path->bpath->code = ART_END; - path->end = 0; - path->hascpt = FALSE; - path->posset = FALSE; - path->moving = FALSE; - path->allclosed = TRUE; - path->allopen = TRUE; -} - -/* Several consequtive movetos are ALLOWED */ - -/** - * gnome_canvas_path_def_moveto: - * @path: a GnomeCanvasPathDef - * @x: x coordinate - * @y: y coordinate - * - * This function adds starts new subpath on @path, and sets its - * starting point to @x and @y. If current subpath is empty, it - * simply changes its starting coordinates to new values. - */ -void -gnome_canvas_path_def_moveto (GnomeCanvasPathDef * path, gdouble x, gdouble y) -{ - g_return_if_fail (path != NULL); - g_return_if_fail (!path->sbpath); - g_return_if_fail (!path->moving); - - path->substart = path->end; - path->hascpt = TRUE; - path->posset = TRUE; - path->x = x; - path->y = y; - - path->allclosed = FALSE; -} - -/** - * gnome_canvas_path_def_lineto: - * @path: a GnomeCanvasPathDef - * @x: x coordinate - * @y: y coordinate - * - * This function add a line segment to the passed @path with the - * specified @x and @y coordinates. - */ -void -gnome_canvas_path_def_lineto (GnomeCanvasPathDef * path, gdouble x, gdouble y) -{ - ArtBpath * bp; - - g_return_if_fail (path != NULL); - g_return_if_fail (!path->sbpath); - g_return_if_fail (path->hascpt); - - if (path->moving) { - /* simply fix endpoint */ - g_return_if_fail (!path->posset); - g_return_if_fail (path->end > 1); - bp = path->bpath + path->end - 1; - g_return_if_fail (bp->code == ART_LINETO); - bp->x3 = x; - bp->y3 = y; - path->moving = FALSE; - return; - } - - if (path->posset) { - /* start a new segment */ - gnome_canvas_path_def_ensure_space (path, 2); - bp = path->bpath + path->end; - bp->code = ART_MOVETO_OPEN; - bp->x3 = path->x; - bp->y3 = path->y; - bp++; - bp->code = ART_LINETO; - bp->x3 = x; - bp->y3 = y; - bp++; - bp->code = ART_END; - path->end += 2; - path->posset = FALSE; - path->allclosed = FALSE; - return; - } - - /* Simply add line */ - - g_return_if_fail (path->end > 1); - gnome_canvas_path_def_ensure_space (path, 1); - bp = path->bpath + path->end; - bp->code = ART_LINETO; - bp->x3 = x; - bp->y3 = y; - bp++; - bp->code = ART_END; - path->end++; -} - -/** - * gnome_canvas_path_def_lineto_moving: - * @path: a GnomeCanvasPathDef - * @x: x coordinate - * @y: y coordinate - * - * This functions adds a new line segment with loose endpoint to the path, or - * if endpoint is already loose, changes its coordinates to @x, @y. You - * can change the coordinates of loose endpoint as many times as you want, - * the last ones set will be fixed, if you continue line. This is useful - * for handling drawing with mouse. - */ -void -gnome_canvas_path_def_lineto_moving (GnomeCanvasPathDef * path, gdouble x, gdouble y) -{ - ArtBpath * bp; - - g_return_if_fail (path != NULL); - g_return_if_fail (!path->sbpath); - g_return_if_fail (path->hascpt); - - if (path->moving) { - /* simply change endpoint */ - g_return_if_fail (!path->posset); - g_return_if_fail (path->end > 1); - bp = path->bpath + path->end - 1; - g_return_if_fail (bp->code == ART_LINETO); - bp->x3 = x; - bp->y3 = y; - return; - } - - if (path->posset) { - /* start a new segment */ - gnome_canvas_path_def_ensure_space (path, 2); - bp = path->bpath + path->end; - bp->code = ART_MOVETO_OPEN; - bp->x3 = path->x; - bp->y3 = path->y; - bp++; - bp->code = ART_LINETO; - bp->x3 = x; - bp->y3 = y; - bp++; - bp->code = ART_END; - path->end += 2; - path->posset = FALSE; - path->moving = TRUE; - path->allclosed = FALSE; - return; - } - - /* Simply add line */ - - g_return_if_fail (path->end > 1); - gnome_canvas_path_def_ensure_space (path, 1); - bp = path->bpath + path->end; - bp->code = ART_LINETO; - bp->x3 = x; - bp->y3 = y; - bp++; - bp->code = ART_END; - path->end++; - path->moving = TRUE; -} - -/** - * gnome_canvas_path_def_curveto: - * @path: a GnomeCanvasPathDef - * @x0: first control point x coordinate - * @y0: first control point y coordinate - * @x1: second control point x coordinate - * @y1: second control point y coordinate - * @x2: end of curve x coordinate - * @y2: end of curve y coordinate - * - * This function adds a bezier curve segment to the path definition. - */ - -void -gnome_canvas_path_def_curveto (GnomeCanvasPathDef * path, - gdouble x0, - gdouble y0, - gdouble x1, - gdouble y1, - gdouble x2, - gdouble y2) -{ - ArtBpath * bp; - - g_return_if_fail (path != NULL); - g_return_if_fail (!path->sbpath); - g_return_if_fail (path->hascpt); - g_return_if_fail (!path->moving); - - if (path->posset) { - /* start a new segment */ - gnome_canvas_path_def_ensure_space (path, 2); - bp = path->bpath + path->end; - bp->code = ART_MOVETO_OPEN; - bp->x3 = path->x; - bp->y3 = path->y; - bp++; - bp->code = ART_CURVETO; - bp->x1 = x0; - bp->y1 = y0; - bp->x2 = x1; - bp->y2 = y1; - bp->x3 = x2; - bp->y3 = y2; - bp++; - bp->code = ART_END; - path->end += 2; - path->posset = FALSE; - path->allclosed = FALSE; - return; - } - - /* Simply add path */ - - g_return_if_fail (path->end > 1); - gnome_canvas_path_def_ensure_space (path, 1); - bp = path->bpath + path->end; - bp->code = ART_CURVETO; - bp->x1 = x0; - bp->y1 = y0; - bp->x2 = x1; - bp->y2 = y1; - bp->x3 = x2; - bp->y3 = y2; - bp++; - bp->code = ART_END; - path->end++; -} - -/** - * gnome_canvas_path_def_closepath: - * @path: a GnomeCanvasPathDef - * - * This function closes the last subpath of @path, adding a ART_LINETO to - * subpath starting point, if needed and changing starting pathcode to - * ART_MOVETO - */ -void -gnome_canvas_path_def_closepath (GnomeCanvasPathDef * path) -{ - ArtBpath * bs, * be; - - g_return_if_fail (path != NULL); - g_return_if_fail (!path->sbpath); - g_return_if_fail (path->hascpt); - g_return_if_fail (!path->posset); - g_return_if_fail (!path->moving); - g_return_if_fail (!path->allclosed); - /* We need at last M + L + L + E */ - g_return_if_fail (path->end - path->substart > 2); - - bs = path->bpath + path->substart; - be = path->bpath + path->end - 1; - - if ((bs->x3 != be->x3) || (bs->y3 != be->y3)) { - gnome_canvas_path_def_lineto (path, bs->x3, bs->y3); - } - - bs = path->bpath + path->substart; /* NB. def_lineto can - realloc bpath */ - bs->code = ART_MOVETO; - - path->allclosed = sp_bpath_all_closed (path->bpath); - path->allopen = sp_bpath_all_open (path->bpath); - - path->hascpt = FALSE; -} - -/** - * gnome_canvas_path_def_closepath_current: - * @path: a GnomeCanvasPathDef - * - * This function closes the last subpath by setting the coordinates of - * the endpoint of the last segment (line or curve) to starting point. - */ -void -gnome_canvas_path_def_closepath_current (GnomeCanvasPathDef * path) -{ - ArtBpath * bs, * be; - - g_return_if_fail (path != NULL); - g_return_if_fail (!path->sbpath); - g_return_if_fail (path->hascpt); - g_return_if_fail (!path->posset); - g_return_if_fail (!path->allclosed); - /* We need at last M + L + L + E */ - g_return_if_fail (path->end - path->substart > 2); - - bs = path->bpath + path->substart; - be = path->bpath + path->end - 1; - - be->x3 = bs->x3; - be->y3 = bs->y3; - - bs->code = ART_MOVETO; - - path->allclosed = sp_bpath_all_closed (path->bpath); - path->allopen = sp_bpath_all_open (path->bpath); - - path->hascpt = FALSE; - path->moving = FALSE; -} - -/** - * gnome_canvas_path_def_bpath: - * @path: a GnomeCanvasPathDef - * - * This function returns a ArtBpath that consists of the path - * definition. - * - * Returns: ArtBpath - */ -ArtBpath * gnome_canvas_path_def_bpath (const GnomeCanvasPathDef * path) -{ - g_return_val_if_fail (path != NULL, NULL); - - return path->bpath; -} - -/** - * gnome_canvas_path_def_length: - * @path: a GnomeCanvasPathDef - * - * This function returns the length of the path definition. Not - * Euclidian length of the path but rather the number of points on the - * path. - * - * Returns: integer, number of points on the path. - */ -gint gnome_canvas_path_def_length (const GnomeCanvasPathDef * path) -{ - g_return_val_if_fail (path != NULL, -1); - - return path->end + 1; -} - -/** - * gnome_canvas_path_def_is_empty: - * @path: a GnomeCanvasPathDef - * - * This function is a boolean test to see if the path is empty, - * meaning containing no line segments. - * - * Returns: boolean, indicating if the path is empty. - */ -gboolean -gnome_canvas_path_def_is_empty (const GnomeCanvasPathDef * path) -{ - g_return_val_if_fail (path != NULL, TRUE); - - return (path->bpath->code == ART_END); -} - -/** - * gnome_canvas_path_def_has_currentpoint: - * @path: a GnomeCanvasPathdef - * - * This function is a boolean test checking to see if the path has a - * current point defined. Current point will be set by line operators, - * and cleared by closing subpath. - * - * Returns: boolean, indicating if the path has a current point defined. - */ -gboolean -gnome_canvas_path_def_has_currentpoint (const GnomeCanvasPathDef * path) -{ - g_return_val_if_fail (path != NULL, FALSE); - - return (path->hascpt); -} - -/** - * gnome_canvas_path_def_currentpoint: - * @path: a GnomeCanvasPathDef - * @p: a ArtPoint where to store the current point - * - * Stores the current point of the path definition in the passed ArtPoint @p. - */ -void -gnome_canvas_path_def_currentpoint (const GnomeCanvasPathDef * path, ArtPoint * p) -{ - g_return_if_fail (path != NULL); - g_return_if_fail (p != NULL); - g_return_if_fail (path->hascpt); - - if (path->posset) { - p->x = path->x; - p->y = path->y; - } else { - p->x = (path->bpath + path->end - 1)->x3; - p->y = (path->bpath + path->end - 1)->y3; - } -} - -/** - * gnome_canvas_path_def_last_bpath: - * @path: a GnomeCanvasPathDef - * - * This function returns pointer to the last ArtBpath segment in the path - * definition. - * - * Returns: ArtBpath, being the last segment in the path definition or - * null if no line segments have been defined. - */ -ArtBpath * -gnome_canvas_path_def_last_bpath (const GnomeCanvasPathDef * path) -{ - g_return_val_if_fail (path != NULL, NULL); - - if (path->end == 0) return NULL; - - return path->bpath + path->end - 1; -} - -/** - * gnome_canvas_path_def_first_bpath: - * @path: a GnomeCanvasPathDef - * - * This function returns the first ArtBpath point in the definition. - * - * Returns: ArtBpath being the first point in the path definition or - * null if no points are defined -*/ -ArtBpath * -gnome_canvas_path_def_first_bpath (const GnomeCanvasPathDef * path) -{ - g_return_val_if_fail (path != NULL, NULL); - - if (path->end == 0) return NULL; - - return path->bpath; -} - -/** - * gnome_canvas_path_def_any_open: - * @path: a GnomeCanvasPathDef - * - * This function returns a boolean value indicating if the path has - * any open segments. - * - * Returns: boolean, indicating if the path has any open segments. - */ -gboolean -gnome_canvas_path_def_any_open (const GnomeCanvasPathDef * path) -{ - g_return_val_if_fail (path != NULL, FALSE); - - return (!path->allclosed); -} - -/** - * gnome_canvas_path_def_all_open: - * @path: a GnomeCanvasPathDef - * - * This function returns a boolean value indicating if the path only - * contains open segments. - * - * Returns: boolean, indicating if the path has all open segments. - */ -gboolean -gnome_canvas_path_def_all_open (const GnomeCanvasPathDef * path) -{ - g_return_val_if_fail (path != NULL, FALSE); - - return (path->allopen); -} - -/** - * gnome_canvas_path_def_any_closed: - * @path: a GnomeCanvasPathDef - * - * This function returns a boolean valid indicating if the path has - * any closed segements. - * - * Returns: boolean, indicating if the path has any closed segments. - */ -gboolean -gnome_canvas_path_def_any_closed (const GnomeCanvasPathDef * path) -{ - g_return_val_if_fail (path != NULL, FALSE); - - return (!path->allopen); -} - -/** - * gnome_canvas_path_def_all_closed: - * @path: a GnomeCanvasPathDef - * - * This function returns a boolean value indicating if the path only - * contains closed segments. - * - * Returns: boolean, indicating if the path has all closed segments. - */ -gboolean -gnome_canvas_path_def_all_closed (const GnomeCanvasPathDef * path) -{ - g_return_val_if_fail (path != NULL, FALSE); - - return (path->allclosed); -} - -/* Private methods */ - -static -gboolean sp_bpath_good (ArtBpath * bpath) -{ - ArtBpath * bp; - - g_return_val_if_fail (bpath != NULL, FALSE); - - if (bpath->code == ART_END) - return TRUE; - - bp = bpath; - - while (bp->code != ART_END) { - bp = sp_bpath_check_subpath (bp); - if (bp == NULL) return FALSE; - } - - return TRUE; -} - -static ArtBpath * -sp_bpath_check_subpath (ArtBpath * bpath) -{ - gint i, len; - gboolean closed; - - g_return_val_if_fail (bpath != NULL, NULL); - - if (bpath->code == ART_MOVETO) { - closed = TRUE; - } else if (bpath->code == ART_MOVETO_OPEN) { - closed = FALSE; - } else { - return NULL; - } - - len = 0; - - for (i = 1; (bpath[i].code != ART_END) && - (bpath[i].code != ART_MOVETO) && - (bpath[i].code != ART_MOVETO_OPEN); i++) { - switch (bpath[i].code) { - case ART_LINETO: - case ART_CURVETO: - len++; - break; - default: - return NULL; - } - } - - if (closed) { - if (len < 2) return NULL; - if ((bpath->x3 != bpath[i-1].x3) || (bpath->y3 != bpath[i-1].y3)) return NULL; - } else { - if (len < 1) return NULL; - } - - return bpath + i; -} - -static gint -sp_bpath_length (const ArtBpath * bpath) -{ - gint l; - - g_return_val_if_fail (bpath != NULL, FALSE); - - for (l = 0; bpath[l].code != ART_END; l++); - - l++; - - return l; -} - -static gboolean -sp_bpath_all_closed (const ArtBpath * bpath) -{ - const ArtBpath * bp; - - g_return_val_if_fail (bpath != NULL, FALSE); - - for (bp = bpath; bp->code != ART_END; bp++) - if (bp->code == ART_MOVETO_OPEN) return FALSE; - - return TRUE; -} - -static gboolean -sp_bpath_all_open (const ArtBpath * bpath) -{ - const ArtBpath * bp; - - g_return_val_if_fail (bpath != NULL, FALSE); - - for (bp = bpath; bp->code != ART_END; bp++) - if (bp->code == ART_MOVETO) return FALSE; - - return TRUE; -} - diff --git a/libgnomecanvas/gnome-canvas-path-def.h b/libgnomecanvas/gnome-canvas-path-def.h deleted file mode 100644 index c3f6b25147..0000000000 --- a/libgnomecanvas/gnome-canvas-path-def.h +++ /dev/null @@ -1,96 +0,0 @@ -#ifndef GNOME_CANVAS_PATH_DEF_H -#define GNOME_CANVAS_PATH_DEF_H - -/* - * GnomeCanvasPathDef - * - * (C) 1999-2000 Lauris Kaplinski - * Released under LGPL - * - * This is mostly like GnomeCanvasBpathDef, but with added functionality: - * - can be constructed from scratch, from existing bpath of from static bpath - * - Path is always terminated with ART_END - * - Has closed flag - * - has concat, split and copy methods - * - */ - -#include -#include - -G_BEGIN_DECLS - -typedef struct _GnomeCanvasPathDef GnomeCanvasPathDef; - -#define GNOME_TYPE_CANVAS_PATH_DEF (gnome_canvas_path_def_get_type ()) -GType gnome_canvas_path_def_get_type (void) G_GNUC_CONST; - -/* Constructors */ - -GnomeCanvasPathDef * gnome_canvas_path_def_new (void); -GnomeCanvasPathDef * gnome_canvas_path_def_new_sized (gint length); -GnomeCanvasPathDef * gnome_canvas_path_def_new_from_bpath (ArtBpath * bpath); -GnomeCanvasPathDef * gnome_canvas_path_def_new_from_static_bpath (ArtBpath * bpath); -GnomeCanvasPathDef * gnome_canvas_path_def_new_from_foreign_bpath (ArtBpath * bpath); - -void gnome_canvas_path_def_ref (GnomeCanvasPathDef * path); -void gnome_canvas_path_def_finish (GnomeCanvasPathDef * path); -void gnome_canvas_path_def_ensure_space (GnomeCanvasPathDef * path, gint space); - -/* - * Misc constructors - * All these return NEW path, not unrefing old - * Also copy and duplicate force bpath to be private (otherwise you - * would use ref :) - */ - -void gnome_canvas_path_def_copy (GnomeCanvasPathDef * dst, const GnomeCanvasPathDef * src); -GnomeCanvasPathDef * gnome_canvas_path_def_duplicate (const GnomeCanvasPathDef * path); -GnomeCanvasPathDef * gnome_canvas_path_def_concat (const GSList * list); -GSList * gnome_canvas_path_def_split (const GnomeCanvasPathDef * path); -GnomeCanvasPathDef * gnome_canvas_path_def_open_parts (const GnomeCanvasPathDef * path); -GnomeCanvasPathDef * gnome_canvas_path_def_closed_parts (const GnomeCanvasPathDef * path); -GnomeCanvasPathDef * gnome_canvas_path_def_close_all (const GnomeCanvasPathDef * path); - -/* Destructor */ - -void gnome_canvas_path_def_unref (GnomeCanvasPathDef * path); - -/* Methods */ - -/* Sets GnomeCanvasPathDef to zero length */ - -void gnome_canvas_path_def_reset (GnomeCanvasPathDef * path); - -/* Drawing methods */ - -void gnome_canvas_path_def_moveto (GnomeCanvasPathDef * path, gdouble x, gdouble y); -void gnome_canvas_path_def_lineto (GnomeCanvasPathDef * path, gdouble x, gdouble y); - -/* Does not create new ArtBpath, but simply changes last lineto position */ - -void gnome_canvas_path_def_lineto_moving (GnomeCanvasPathDef * path, gdouble x, gdouble y); -void gnome_canvas_path_def_curveto (GnomeCanvasPathDef * path, gdouble x0, gdouble y0,gdouble x1, gdouble y1, gdouble x2, gdouble y2); -void gnome_canvas_path_def_closepath (GnomeCanvasPathDef * path); - -/* Does not draw new line to startpoint, but moves last lineto */ - -void gnome_canvas_path_def_closepath_current (GnomeCanvasPathDef * path); - -/* Various methods */ - -ArtBpath * gnome_canvas_path_def_bpath (const GnomeCanvasPathDef * path); -gint gnome_canvas_path_def_length (const GnomeCanvasPathDef * path); -gboolean gnome_canvas_path_def_is_empty (const GnomeCanvasPathDef * path); -gboolean gnome_canvas_path_def_has_currentpoint (const GnomeCanvasPathDef * path); -void gnome_canvas_path_def_currentpoint (const GnomeCanvasPathDef * path, ArtPoint * p); -ArtBpath * gnome_canvas_path_def_last_bpath (const GnomeCanvasPathDef * path); -ArtBpath * gnome_canvas_path_def_first_bpath (const GnomeCanvasPathDef * path); -gboolean gnome_canvas_path_def_any_open (const GnomeCanvasPathDef * path); -gboolean gnome_canvas_path_def_all_open (const GnomeCanvasPathDef * path); -gboolean gnome_canvas_path_def_any_closed (const GnomeCanvasPathDef * path); -gboolean gnome_canvas_path_def_all_closed (const GnomeCanvasPathDef * path); - -G_END_DECLS - -#endif diff --git a/libgnomecanvas/gnome-canvas-shape.h b/libgnomecanvas/gnome-canvas-shape.h index dcd1c01305..c27c606868 100644 --- a/libgnomecanvas/gnome-canvas-shape.h +++ b/libgnomecanvas/gnome-canvas-shape.h @@ -15,7 +15,6 @@ #define GNOME_CANVAS_SHAPE_H #include -#include G_BEGIN_DECLS -- cgit v1.2.3