eeshow/gui/: experimental support for page layout; option -P pl-file.kicad_wks

Unlike libraries and schematics, page layouts are not (yet) tracked through
revision history.

eeshow/gui/common.h

@@ -66,6 +66,8 @@ struct gui_ctx {
 	unsigned zoom;		/* scale by 1.0 / (1 << zoom) */
 	int x, y;		/* center, in eeschema coordinates */
 
+	struct pl_ctx *pl;	// @@@
+
 	struct gui_hist *hist;	/* revision history; NULL if none */
 	struct hist *vcs_hist;	/* underlying VCS data; NULL if none */
 

eeshow/gui/gui.c

@@ -30,6 +30,7 @@
 #include "misc/util.h"
 #include "misc/diag.h"
 #include "file/git-hist.h"
+#include "kicad/pl.h"
 #include "kicad/lib.h"
 #include "kicad/sch.h"
 #include "kicad/delta.h"
@@ -381,12 +382,14 @@ static void get_history(struct gui_ctx *ctx, const char *sch_name, int limit)
 /* ----- Initialization ---------------------------------------------------- */
 
 
-int gui(unsigned n_args, char **args, bool recurse, int limit)
+int gui(unsigned n_args, char **args, bool recurse, int limit,
+    struct pl_ctx *pl)
 {
 	GtkWidget *window;
 	char *title;
 	struct gui_ctx ctx = {
 		.zoom		= 4,	/* scale by 1 / 16 */
+		.pl		= pl, // @@@
 		.hist		= NULL,
 		.vcs_hist	= NULL,
 		.showing_history= 0,

eeshow/gui/gui.h

@@ -20,6 +20,7 @@
  * and there is no NULL at the end.
  */
 
-int gui(unsigned n_args, char **args, bool recurse, int limit);
+int gui(unsigned n_args, char **args, bool recurse, int limit,
+    struct pl_ctx *pl);
 
 #endif /* !GUI_GUI_H */

eeshow/gui/render.c

@@ -21,6 +21,7 @@
 #include "gfx/style.h"
 #include "gfx/cro.h"
 #include "gfx/gfx.h"
+#include "kicad/pl.h"
 #include "kicad/sch.h"
 #include "kicad/delta.h"
 #include "gfx/diff.h"
@@ -230,6 +231,8 @@ void render_sheet(struct gui_sheet *sheet)
 	char *argv[] = { "gui", NULL };
 
 	gfx_init(&cro_canvas_ops, 1, argv);
+	if (sheet->ctx->pl)
+		pl_render(sheet->ctx->pl, sheet->sch->w, sheet->sch->h);
 	sch_render(sheet->sch);
 	cro_canvas_end(gfx_ctx,
 	    &sheet->w, &sheet->h, &sheet->xmin, &sheet->ymin);

eeshow/main.c

@@ -27,6 +27,7 @@
 #include "gfx/gfx.h"
 #include "file/file.h"
 #include "kicad/sexpr.h"
+#include "kicad/pl.h"
 #include "kicad/lib.h"
 #include "kicad/sch.h"
 #include "gui/fmt-pango.h"
@@ -120,6 +121,8 @@ int main(int argc, char **argv)
 	const char *cat = NULL;
 	const char *history = NULL;
 	const char *fmt = NULL;
+	const char *page_layout = NULL;
+	struct pl_ctx *pl = NULL;
 	int limit = 0;
 	char c;
 	int arg, dashdash;
@@ -150,7 +153,7 @@ int main(int argc, char **argv)
 	if (!have_dashdash)
 		gtk_init(&argc, &argv);
 
-	while ((c = getopt(dashdash, argv, "rvC:F:H:N:SV")) != EOF)
+	while ((c = getopt(dashdash, argv, "P:rvC:F:H:N:SV")) != EOF)
 		switch (c) {
 		case 'r':
 			recurse = 1;
@@ -170,6 +173,9 @@ int main(int argc, char **argv)
 		case 'N':
 			limit = atoi(optarg);
 			break;
+		case 'P':
+			page_layout = optarg;
+			break;
 		case 'S':
 			sexpr();
 			return 0;
@@ -209,6 +215,17 @@ int main(int argc, char **argv)
 		return 0;
 	}
 
+	if (page_layout) {
+		struct file file;
+
+		if (!file_open(&file, page_layout, NULL))
+			return 1;
+		pl = pl_parse(&file);
+		file_close(&file);
+		if (!pl)
+			return 1;
+	}
+
 	if (dashdash - optind < 1)
 		usage(*argv);
 
@@ -220,7 +237,7 @@ int main(int argc, char **argv)
 		memcpy(args, argv + optind, sizeof(const char *) * n);
 	
 		optind = 0; /* reset getopt */
-		return gui(n, args, recurse, limit);
+		return gui(n, args, recurse, limit, pl);
 	}
 
 	sch_init(&sch_ctx, recurse);