From 432b59c7a1974f1f874caaa914f1f417ea66cb09 Mon Sep 17 00:00:00 2001
From: Martin Mares <mj@ucw.cz>
Date: Sun, 22 Apr 2018 22:05:16 +0200
Subject: [PATCH] Implemented common

---
 cmds.cc | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/cmds.cc b/cmds.cc
index 9ce9e03..a0be573 100644
--- a/cmds.cc
+++ b/cmds.cc
@@ -1416,6 +1416,40 @@ static const arg_def clip_args[] = {
   { NULL,	0,				NULL }
 };
 
+/*** common ***/
+
+class common_cmd : public cmd_exec {
+  vector<page *> process(vector<page *> &pages) override
+    {
+      if (!pages.size())
+        return pages;
+
+      const page *first = pages[0];
+      BBox pbox(first->width, first->height);
+      BBox ibox = first->image_box;
+      for (auto p: pages)
+	{
+	  BBox pg(p->width, p->height);
+	  pbox.join(pg);
+	  ibox.join(p->image_box);
+	}
+
+      vector<page *> out;
+      for (auto p: pages)
+	{
+	  page *q = new xform_page(p, pdf_matrix());
+	  q->width = pbox.width();
+	  q->height = pbox.height();
+	  q->image_box = ibox;
+	  out.push_back(q);
+	}
+
+      return out;
+    }
+public:
+  common_cmd(cmd *c UNUSED) { }
+};
+
 /*** Command table ***/
 
 template<typename T> cmd_exec *ctor(cmd *c) { return new T(c); }
@@ -1429,6 +1463,8 @@ const cmd_def cmd_table[] = {
 		"Prepare booklets for book binding" },
   { "clip",	clip_args,	0,	&ctor<clip_cmd>,
 		"Suppress page contents drawn outside the image box" },
+  { "common",	no_args,	0,	&ctor<common_cmd>,
+		"Use a common page size and image box for all pages" },
   { "cropmarks",cropmarks_args,	0,	&ctor<cropmarks_cmd>,
 		"Draw cropping marks around the image box" },
   { "debug",	no_args,	0,	&ctor<debug_cmd>,
-- 
2.39.2