From 3367620016009da7191fca1f184b8c31740a708c Mon Sep 17 00:00:00 2001 From: ellson Date: Thu, 30 Dec 2004 04:32:35 +0000 Subject: [PATCH] compute a clip box in graph coords to enable clipping during emit --- lib/common/emit.c | 8 ++++++-- lib/gvc/gvrenderint.h | 1 + 2 files changed, 7 insertions(+), 2 deletions(-) diff --git a/lib/common/emit.c b/lib/common/emit.c index 19a7b47af..1872ef0c3 100644 --- a/lib/common/emit.c +++ b/lib/common/emit.c @@ -364,8 +364,7 @@ void emit_node(GVC_t * gvc, node_t * n) if (ND_shape(n) == NULL) return; - if (node_in_layer(n->graph, n) && node_in_CB(n) - && (ND_state(n) != Page)) { + if (node_in_layer(n->graph, n) && node_in_CB(n) && (ND_state(n) != Page)) { gvrender_begin_node(gvc, n); if (((s = agget(n, "href")) && s[0]) || ((s = agget(n, "URL")) && s[0])) { @@ -685,6 +684,11 @@ void emit_graph(GVC_t * gvc, graph_t * g, int flags) /* FIXME - some of setup_pagination should be in emit_init() */ setup_pagination(gvc, g); + gvc->clip.UR.x = ROUND(gvc->focus.x + (gvc->width+1) / (gvc->zoom * 2.)); + gvc->clip.UR.y = ROUND(gvc->focus.y + (gvc->height+1) / (gvc->zoom * 2.)); + gvc->clip.LL.x = ROUND(gvc->focus.x - (gvc->width+1) / (gvc->zoom * 2.)); + gvc->clip.LL.y = ROUND(gvc->focus.y - (gvc->height+1) / (gvc->zoom * 2.)); + gvrender_begin_graph(gvc, g, PB, PFC); if (flags & EMIT_COLORS) { gvrender_set_fillcolor(gvc, DEFAULT_FILL); diff --git a/lib/gvc/gvrenderint.h b/lib/gvc/gvrenderint.h index 6091d5672..613ceef25 100644 --- a/lib/gvc/gvrenderint.h +++ b/lib/gvc/gvrenderint.h @@ -137,6 +137,7 @@ extern "C" { double zoom; /* viewport zoom factor */ pointf focus; /* viewport focus in graph units */ pointf compscale; /* composite device scale incl: scale, zoom, dpi, y_goes_down */ + box clip; /* clip region in graph units */ /* gvrender_begin_page() */ point page; -- 2.40.0