X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=gtk2_ardour%2Fcanvas-simpleline.c;h=efff5034f95f4ca7070b8b337dec98e8404aca99;hb=3f56abe099cd6978fbf2e1778debd74e771c95cd;hp=9823975eeee3bcd6135a3c2a4ac88e9e723b5bc1;hpb=209d967b1bb80a9735d690d8f4f0455ecb9970ca;p=ardour.git diff --git a/gtk2_ardour/canvas-simpleline.c b/gtk2_ardour/canvas-simpleline.c index 9823975eee..efff5034f9 100644 --- a/gtk2_ardour/canvas-simpleline.c +++ b/gtk2_ardour/canvas-simpleline.c @@ -1,357 +1,434 @@ #include #include -#include +#include +#include #include "canvas-simpleline.h" #include "rgb_macros.h" +#include "gettext.h" +#define _(Text) dgettext (PACKAGE,Text) enum { - ARG_0, - ARG_X1, - ARG_Y1, - ARG_X2, - ARG_Y2, - ARG_COLOR_RGBA + PROP_0, + PROP_X1, + PROP_Y1, + PROP_X2, + PROP_Y2, + PROP_COLOR_RGBA }; -static void gtk_canvas_simpleline_class_init (GtkCanvasSimpleLineClass *class); -static void gtk_canvas_simpleline_init (GtkCanvasSimpleLine *simpleline); -static void gtk_canvas_simpleline_set_arg (GtkObject *object, - GtkArg *arg, - guint arg_id); -static void gtk_canvas_simpleline_get_arg (GtkObject *object, - GtkArg *arg, - guint arg_id); +static void gnome_canvas_simpleline_class_init (GnomeCanvasSimpleLineClass *class); -static void gtk_canvas_simpleline_update (GtkCanvasItem *item, double *affine, ArtSVP *clip_path, int flags); -static void gtk_canvas_simpleline_bounds (GtkCanvasItem *item, double *x1, double *y1, double *x2, double *y2); -static double gtk_canvas_simpleline_point (GtkCanvasItem *item, double x, double y, int cx, int cy, GtkCanvasItem **actual_item); -static void gtk_canvas_simpleline_render (GtkCanvasItem *item, GtkCanvasBuf *buf); -static void gtk_canvas_simpleline_draw (GtkCanvasItem *item, GdkDrawable *drawable, int x, int y, int w, int h); +static void gnome_canvas_simpleline_init (GnomeCanvasSimpleLine *simpleline); -static GtkCanvasItemClass *parent_class; +static void gnome_canvas_simpleline_destroy (GtkObject *object); +static void gnome_canvas_simpleline_set_property (GObject *object, + guint prop_id, + const GValue *value, + GParamSpec *pspec); +static void gnome_canvas_simpleline_get_property (GObject *object, + guint prop_id, + GValue *value, + GParamSpec *pspec); -GtkType -gtk_canvas_simpleline_get_type (void) +static void gnome_canvas_simpleline_update (GnomeCanvasItem *item, + double *affine, + ArtSVP *clip_path, + int flags); + +static void gnome_canvas_simpleline_bounds (GnomeCanvasItem *item, + double *x1, + double *y1, + double *x2, + double *y2); + +static double gnome_canvas_simpleline_point (GnomeCanvasItem *item, + double x, + double y, + int cx, + int cy, + GnomeCanvasItem **actual_item); + +static void gnome_canvas_simpleline_render (GnomeCanvasItem *item, + GnomeCanvasBuf *buf); + +static void gnome_canvas_simpleline_draw (GnomeCanvasItem *item, + GdkDrawable *drawable, + int x, + int y, + int w, + int h); + +static GnomeCanvasItemClass *parent_class; + + +GType +gnome_canvas_simpleline_get_type (void) { - static GtkType simpleline_type = 0; + static GType simpleline_type; if (!simpleline_type) { - GtkTypeInfo simpleline_info = { - "GtkCanvasSimpleLine", - sizeof (GtkCanvasSimpleLine), - sizeof (GtkCanvasSimpleLineClass), - (GtkClassInitFunc) gtk_canvas_simpleline_class_init, - (GtkObjectInitFunc) gtk_canvas_simpleline_init, - NULL, /* reserved_1 */ - NULL, /* reserved_2 */ - (GtkClassInitFunc) NULL + static const GTypeInfo object_info = { + sizeof (GnomeCanvasSimpleLineClass), + (GBaseInitFunc) NULL, + (GBaseFinalizeFunc) NULL, + (GClassInitFunc) gnome_canvas_simpleline_class_init, + (GClassFinalizeFunc) NULL, + NULL, /* class_data */ + sizeof (GnomeCanvasSimpleLine), + 0, /* n_preallocs */ + (GInstanceInitFunc) gnome_canvas_simpleline_init, + NULL /* value_table */ }; - simpleline_type = gtk_type_unique (gtk_canvas_item_get_type (), &simpleline_info); + simpleline_type = g_type_register_static (GNOME_TYPE_CANVAS_ITEM, "GnomeCanvasSimpleLine", + &object_info, 0); } return simpleline_type; } static void -gtk_canvas_simpleline_class_init (GtkCanvasSimpleLineClass *class) +gnome_canvas_simpleline_class_init (GnomeCanvasSimpleLineClass *class) { + GObjectClass *gobject_class; GtkObjectClass *object_class; - GtkCanvasItemClass *item_class; + GnomeCanvasItemClass *item_class; + gobject_class = (GObjectClass *) class; object_class = (GtkObjectClass *) class; - item_class = (GtkCanvasItemClass *) class; - - parent_class = gtk_type_class (gtk_canvas_item_get_type ()); - - gtk_object_add_arg_type ("GtkCanvasSimpleLine::x1", GTK_TYPE_DOUBLE, GTK_ARG_READWRITE, ARG_X1); - gtk_object_add_arg_type ("GtkCanvasSimpleLine::y1", GTK_TYPE_DOUBLE, GTK_ARG_READWRITE, ARG_Y1); - gtk_object_add_arg_type ("GtkCanvasSimpleLine::x2", GTK_TYPE_DOUBLE, GTK_ARG_READWRITE, ARG_X2); - gtk_object_add_arg_type ("GtkCanvasSimpleLine::y2", GTK_TYPE_DOUBLE, GTK_ARG_READWRITE, ARG_Y2); - gtk_object_add_arg_type ("GtkCanvasSimpleLine::color_rgba", GTK_TYPE_INT, GTK_ARG_READWRITE, ARG_COLOR_RGBA); - - object_class->set_arg = gtk_canvas_simpleline_set_arg; - object_class->get_arg = gtk_canvas_simpleline_get_arg; - - item_class->update = gtk_canvas_simpleline_update; - item_class->bounds = gtk_canvas_simpleline_bounds; - item_class->point = gtk_canvas_simpleline_point; - item_class->render = gtk_canvas_simpleline_render; - item_class->draw = gtk_canvas_simpleline_draw; + item_class = (GnomeCanvasItemClass *) class; + + parent_class = g_type_class_peek_parent (class); + + gobject_class->set_property = gnome_canvas_simpleline_set_property; + gobject_class->get_property = gnome_canvas_simpleline_get_property; + + g_object_class_install_property (gobject_class, + PROP_X1, + g_param_spec_double ("x1", + _("x1"), + _("x coordinate of upper left corner of rect"), + -G_MAXDOUBLE, + G_MAXDOUBLE, + 0.0, + G_PARAM_READWRITE)); + + g_object_class_install_property (gobject_class, + PROP_Y1, + g_param_spec_double ("y1", + _("y1"), + _("y coordinate of upper left corner of rect "), + -G_MAXDOUBLE, + G_MAXDOUBLE, + 0.0, + G_PARAM_READWRITE)); + + + g_object_class_install_property (gobject_class, + PROP_X2, + g_param_spec_double ("x2", + _("x2"), + _("x coordinate of lower right corner of rect"), + -G_MAXDOUBLE, + G_MAXDOUBLE, + 0.0, + G_PARAM_READWRITE)); + + g_object_class_install_property (gobject_class, + PROP_Y2, + g_param_spec_double ("y2", + _("y2"), + _("y coordinate of lower right corner of rect "), + -G_MAXDOUBLE, + G_MAXDOUBLE, + 0.0, + G_PARAM_READWRITE)); + g_object_class_install_property (gobject_class, + PROP_COLOR_RGBA, + g_param_spec_uint ("color_rgba", + _("color rgba"), + _("color of line"), + 0, + G_MAXUINT, + 0, + G_PARAM_READWRITE)); + + object_class->destroy = gnome_canvas_simpleline_destroy; + + item_class->update = gnome_canvas_simpleline_update; + item_class->bounds = gnome_canvas_simpleline_bounds; + item_class->point = gnome_canvas_simpleline_point; + item_class->render = gnome_canvas_simpleline_render; + item_class->draw = gnome_canvas_simpleline_draw; } static void -gtk_canvas_simpleline_init (GtkCanvasSimpleLine *simpleline) +gnome_canvas_simpleline_init (GnomeCanvasSimpleLine *simpleline) { simpleline->x1 = 0.0; simpleline->y1 = 0.0; simpleline->x2 = 0.0; simpleline->y2 = 0.0; simpleline->color = RGBA_TO_UINT(98,123,174,241); - simpleline->horizontal = TRUE; /* reset in the _update() method */ - GTK_CANVAS_ITEM(simpleline)->object.flags |= GTK_CANVAS_ITEM_NO_AUTO_REDRAW; } static void -gtk_canvas_simpleline_bounds_world (GtkCanvasItem *item, int* ix1, int* iy1, int* ix2, int* iy2) -{ - double x1, x2, y1, y2; - ArtPoint i1, i2; - ArtPoint w1, w2; - double i2w[6]; - GtkCanvasSimpleLine *simpleline = GTK_CANVAS_SIMPLELINE(item); - - gtk_canvas_simpleline_bounds (item, &x1, &y1, &x2, &y2); - - i1.x = x1; - i1.y = y1; - i2.x = x2; - i2.y = y2; - - gtk_canvas_item_i2w_affine (item, i2w); - art_affine_point (&w1, &i1, i2w); - art_affine_point (&w2, &i2, i2w); - - *ix1 = (int) rint(w1.x); - *ix2 = (int) rint(w2.x); - *iy1 = (int) rint(w1.y); - *iy2 = (int) rint(w2.y); - - /* the update rect has to be of non-zero width and height */ - - if (x1 == x2) { - simpleline->horizontal = FALSE; - *ix2 += 1; - } else { - simpleline->horizontal = TRUE; - *iy2 += 1; - } -} - -static void -gtk_canvas_simpleline_reset_bounds (GtkCanvasItem *item) +gnome_canvas_simpleline_destroy (GtkObject *object) { - int Ix1, Ix2, Iy1, Iy2; + g_return_if_fail (object != NULL); + g_return_if_fail (GNOME_IS_CANVAS_SIMPLELINE (object)); - gtk_canvas_simpleline_bounds_world (item, &Ix1, &Iy1, &Ix2, &Iy2); - gtk_canvas_update_bbox (item, Ix1, Iy1, Ix2, Iy2); + if (GTK_OBJECT_CLASS (parent_class)->destroy) + (* GTK_OBJECT_CLASS (parent_class)->destroy) (object); } -/* - * CANVAS CALLBACKS +/* + * CANVAS CALLBACKS */ static void -gtk_canvas_simpleline_set_arg (GtkObject *object, GtkArg *arg, guint arg_id) +gnome_canvas_simpleline_set_property (GObject *object, + guint prop_id, + const GValue *value, + GParamSpec *pspec) + { - GtkCanvasItem *item; - GtkCanvasSimpleLine *simpleline; - int redraw; - int calc_bounds; - - item = GTK_CANVAS_ITEM (object); - simpleline = GTK_CANVAS_SIMPLELINE (object); - - redraw = FALSE; - calc_bounds = FALSE; - - switch (arg_id) { - case ARG_X1: - if (simpleline->x1 != GTK_VALUE_DOUBLE (*arg)) { - simpleline->x1 = GTK_VALUE_DOUBLE (*arg); - calc_bounds = TRUE; + (void) pspec; + + GnomeCanvasSimpleLine *simpleline; + int update = FALSE; + int bounds_changed = FALSE; + double d; + + g_return_if_fail (object != NULL); + g_return_if_fail (GNOME_IS_CANVAS_SIMPLELINE (object)); + + simpleline = GNOME_CANVAS_SIMPLELINE (object); + + switch (prop_id) { + case PROP_X1: + d = g_value_get_double (value); + if (simpleline->x1 != d) { + simpleline->x1 = d; + bounds_changed = TRUE; } break; - case ARG_Y1: - if (simpleline->y1 != GTK_VALUE_DOUBLE (*arg)) { - simpleline->y1 = GTK_VALUE_DOUBLE (*arg); - calc_bounds = TRUE; + case PROP_Y1: + d = g_value_get_double (value); + if (simpleline->y1 != d) { + simpleline->y1 = d; + bounds_changed = TRUE; } break; - case ARG_X2: - if (simpleline->x2 != GTK_VALUE_DOUBLE (*arg)) { - simpleline->x2 = GTK_VALUE_DOUBLE (*arg); - calc_bounds = TRUE; + case PROP_X2: + d = g_value_get_double (value); + if (simpleline->x2 != d) { + simpleline->x2 = d; + bounds_changed = TRUE; } break; - case ARG_Y2: - if (simpleline->y2 != GTK_VALUE_DOUBLE (*arg)) { - simpleline->y2 = GTK_VALUE_DOUBLE (*arg); - calc_bounds = TRUE; + case PROP_Y2: + d = g_value_get_double (value); + if (simpleline->y2 != d) { + simpleline->y2 = d; + bounds_changed = TRUE; } break; - case ARG_COLOR_RGBA: - if (simpleline->color != GTK_VALUE_INT(*arg)) { - simpleline->color = GTK_VALUE_INT(*arg); + case PROP_COLOR_RGBA: + if (simpleline->color != g_value_get_uint(value)) { + simpleline->color = g_value_get_uint(value); UINT_TO_RGBA (simpleline->color, &simpleline->r, &simpleline->g, &simpleline->b, &simpleline->a); - redraw = TRUE; + update = TRUE; } break; - default: break; } - - if (calc_bounds) { - gtk_canvas_item_request_update (item); - - } else if (redraw) { - - int Ix1, Ix2, Iy1, Iy2; - gtk_canvas_simpleline_bounds_world (item, &Ix1, &Iy1, &Ix2, &Iy2); - gtk_canvas_request_redraw (item->canvas, Ix1, Iy1, Ix2, Iy2); + if (update || bounds_changed) { + gnome_canvas_item_request_update (GNOME_CANVAS_ITEM(object)); } } static void -gtk_canvas_simpleline_get_arg (GtkObject *object, GtkArg *arg, guint arg_id) +gnome_canvas_simpleline_get_property (GObject *object, + guint prop_id, + GValue *value, + GParamSpec *pspec) { - GtkCanvasSimpleLine *simpleline; + g_return_if_fail (object != NULL); + g_return_if_fail (GNOME_IS_CANVAS_SIMPLELINE (object)); - simpleline = GTK_CANVAS_SIMPLELINE (object); + GnomeCanvasSimpleLine *line = GNOME_CANVAS_SIMPLELINE (object); - switch (arg_id) { - case ARG_X1: - GTK_VALUE_DOUBLE (*arg) = simpleline->x1; + switch (prop_id) { + case PROP_X1: + g_value_set_double (value, line->x1); break; - case ARG_Y1: - GTK_VALUE_DOUBLE (*arg) = simpleline->y1; + case PROP_X2: + g_value_set_double (value, line->x2); break; - case ARG_X2: - GTK_VALUE_DOUBLE (*arg) = simpleline->x2; + case PROP_Y1: + g_value_set_double (value, line->y1); break; - case ARG_Y2: - GTK_VALUE_DOUBLE (*arg) = simpleline->y2; + case PROP_Y2: + g_value_set_double (value, line->y2); break; - case ARG_COLOR_RGBA: - GTK_VALUE_INT (*arg) = simpleline->color; + case PROP_COLOR_RGBA: + g_value_set_uint (value, line->color); break; default: - arg->type = GTK_TYPE_INVALID; + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void -gtk_canvas_simpleline_update (GtkCanvasItem *item, double *affine, ArtSVP *clip_path, int flags) +gnome_canvas_simpleline_update (GnomeCanvasItem *item, double *affine, ArtSVP *clip_path, int flags) { - GtkCanvasSimpleLine *simpleline; - double x; - double y; + GnomeCanvasSimpleLine *simpleline; + double x1, x2, y1, y2; - simpleline = GTK_CANVAS_SIMPLELINE (item); + simpleline = GNOME_CANVAS_SIMPLELINE (item); if (parent_class->update) (* parent_class->update) (item, affine, clip_path, flags); - gtk_canvas_simpleline_reset_bounds (item); + /* redraw old location */ + + gnome_canvas_request_redraw (item->canvas, item->x1, item->y1, item->x2, item->y2); - x = simpleline->x1; - y = simpleline->y1; + /* get current bounding box in parent-relative world coordinates */ - gtk_canvas_item_i2w (item, &x, &y); - gtk_canvas_w2c (GTK_CANVAS(item->canvas), x, y, &simpleline->bbox_ulx, &simpleline->bbox_uly); + gnome_canvas_simpleline_bounds (item, &x1, &y1, &x2, &y2); - x = simpleline->x2; - y = simpleline->y2; + /* convert parent-relative item coordinates to world coordinates */ - gtk_canvas_item_i2w (item, &x, &y); - gtk_canvas_w2c (GTK_CANVAS(item->canvas), x, y, &simpleline->bbox_lrx, &simpleline->bbox_lry); + gnome_canvas_item_i2w (item, &x1, &y1); + gnome_canvas_item_i2w (item, &x2, &y2); + + /* don't suffer from rounding errors */ + + x1 = floor (x1); + y1 = floor (y1); + x2 = ceil (x2); + y2 = ceil (y2); + + /* force non-zero dimensionality for both axes */ + + if (x1 == x2) { + x2 += 1.0; + } + + if (y1 == y2) { + y2 += 1.0; + } + + /* reset item bounding box (canvas coordinates, so integral. but stored in doubles) */ + + gnome_canvas_w2c_d (GNOME_CANVAS(item->canvas), x1, y1, &item->x1, &item->y1); + gnome_canvas_w2c_d (GNOME_CANVAS(item->canvas), x2, y2, &item->x2, &item->y2); + + /* redraw new location */ + + gnome_canvas_request_redraw (item->canvas, item->x1, item->y1, item->x2, item->y2); + + /* store actual line coords as canvas coordinates for use in render() */ + + x1 = simpleline->x1; + y1 = simpleline->y1; + x2 = simpleline->x2; + y2 = simpleline->y2; + /* convert to world */ + gnome_canvas_item_i2w (item, &x1, &y1); + gnome_canvas_item_i2w (item, &x2, &y2); + /* avoid rounding errors */ + x1 = (int) floor (item->x1); + y1 = (int) floor (item->y1); + x2 = (int) ceil (item->x2); + y2 = (int) ceil (item->y2); + /* convert to canvas coordinates, integral, stored in integers */ + gnome_canvas_w2c (GNOME_CANVAS(item->canvas), x1, y1, &simpleline->cx1, &simpleline->cy1); + gnome_canvas_w2c (GNOME_CANVAS(item->canvas), x2, y2, &simpleline->cx2, &simpleline->cy2); } static void -gtk_canvas_simpleline_render (GtkCanvasItem *item, - GtkCanvasBuf *buf) +gnome_canvas_simpleline_render (GnomeCanvasItem *item, + GnomeCanvasBuf *buf) { - GtkCanvasSimpleLine *simpleline; - int end, begin; + GnomeCanvasSimpleLine *simpleline; + int x1, x2; + int y1, y2; - simpleline = GTK_CANVAS_SIMPLELINE (item); + simpleline = GNOME_CANVAS_SIMPLELINE (item); - if (parent_class->render) { - (*parent_class->render) (item, buf); - } + x1 = simpleline->cx1; + x2 = simpleline->cx2; + y1 = simpleline->cy1; if (buf->is_bg) { - gtk_canvas_buf_ensure_buf (buf); + gnome_canvas_buf_ensure_buf (buf); buf->is_bg = FALSE; } - // begin = MAX(simpleline->bbox_ulx,buf->rect.x0); - // end = MIN(simpleline->bbox_lrx,buf->rect.x1); - - begin = simpleline->bbox_ulx; - end = simpleline->bbox_lrx; - - if (simpleline->color != 0) { - if (simpleline->horizontal) { - PAINT_HORIZA(buf, simpleline->r, simpleline->g, simpleline->b, simpleline->a, - begin, end, simpleline->bbox_uly); - } else { - PAINT_VERTA(buf, simpleline->r, simpleline->g, simpleline->b, simpleline->a, - begin, simpleline->bbox_uly, simpleline->bbox_lry); - } - } + if (simpleline->x1 != simpleline->x2) { + PAINT_HORIZA(buf, simpleline->r, simpleline->g, simpleline->b, simpleline->a, + x1, x2, y1); + } else { + y2 = simpleline->cy2; + PAINT_VERTA (buf, simpleline->r, simpleline->g, simpleline->b, simpleline->a, + x1, y1, y2); + + } } static void -gtk_canvas_simpleline_draw (GtkCanvasItem *item, - GdkDrawable *drawable, - int x, int y, - int width, int height) +gnome_canvas_simpleline_draw (GnomeCanvasItem* canvas, + GdkDrawable* drawable, + int x, int y, + int width, int height) { - GtkCanvasSimpleLine *simpleline; - - simpleline = GTK_CANVAS_SIMPLELINE (item); - - if (parent_class->draw) { - (* parent_class->draw) (item, drawable, x, y, width, height); - } - - fprintf (stderr, "please don't use the CanvasSimpleLine item in a non-aa Canvas\n"); - abort (); + /* XXX not implemented */ } static void -gtk_canvas_simpleline_bounds (GtkCanvasItem *item, double *x1, double *y1, double *x2, double *y2) +gnome_canvas_simpleline_bounds (GnomeCanvasItem *item, double *x1, double *y1, double *x2, double *y2) { - GtkCanvasSimpleLine *simpleline = GTK_CANVAS_SIMPLELINE (item); + GnomeCanvasSimpleLine *simpleline = GNOME_CANVAS_SIMPLELINE (item); - *x1 = simpleline->x1; - *y1 = simpleline->y1; - *x2 = simpleline->x2; - *y2 = simpleline->y2; + *x1 = simpleline->x1; + *y1 = simpleline->y1; + *x2 = simpleline->x1; + *y2 = simpleline->y2; } static double -gtk_canvas_simpleline_point (GtkCanvasItem *item, double x, double y, int cx, int cy, GtkCanvasItem **actual_item) +gnome_canvas_simpleline_point (GnomeCanvasItem *item, double x, double y, int cx, int cy, GnomeCanvasItem **actual_item) { - GtkCanvasSimpleLine *simpleline; + (void) cx; + (void) cy; + double x1, y1, x2, y2; double dx, dy; - simpleline = GTK_CANVAS_SIMPLELINE (item); - *actual_item = item; - /* Find the bounds for the rectangle plus its outline width */ + /* Find the bounds for the line */ - gtk_canvas_simpleline_bounds (item, &x1, &y1, &x2, &y2); + gnome_canvas_simpleline_bounds (item, &x1, &y1, &x2, &y2); + + /* Is point inside line */ - /* Is point inside rectangle */ - if ((x >= x1) && (y >= y1) && (x <= x2) && (y <= y2)) { return 0.0; } - - /* Point is outside rectangle */ + /* Point is outside line */ if (x < x1) dx = x1 - x;