Implemented book

[paperjam.git] / pdf-tools.cc

diff --git a/pdf-tools.cc b/pdf-tools.cc
index 71dde6c9b7744d1d2c0b8176824ba8d519324143..29e79bff9f835e4ca10eb595883f7cca09eaee6c 100644 (file)
--- a/pdf-tools.cc
+++ b/pdf-tools.cc
@@ -4,69 +4,16 @@
  *     (c) 2018 Martin Mares <mj@ucw.cz>
  */
 
-#include <cstdarg>
 #include <cstdio>
 #include <cstdlib>
 
 #include <iconv.h>
 
-using namespace std;
-
-#include "pdf-tools.h"
+#include "jam.h"
 
 #include <qpdf/QUtil.hh>
 #include <qpdf/Pl_Concatenate.hh>
 
-/*** Messages ***/
-
-int debug_mode;
-int debug_indent;
-
-void debug(const char *msg, ...)
-{
-       if (!debug_mode)
-               return;
-       va_list args;
-       va_start(args, msg);
-       fprintf(stderr, "%*s", debug_indent, "");
-       vfprintf(stderr, msg, args);
-       fputc('\n', stderr);
-       va_end(args);
-}
-
-void warn(const char *msg, ...)
-{
-       va_list args;
-       va_start(args, msg);
-       fprintf(stderr, "WARNING: ");
-       vfprintf(stderr, msg, args);
-       fputc('\n', stderr);
-       va_end(args);
-}
-
-void die(const char *msg, ...)
-{
-       va_list args;
-       va_start(args, msg);
-       fprintf(stderr, "ERROR: ");
-       vfprintf(stderr, msg, args);
-       fputc('\n', stderr);
-       va_end(args);
-       exit(1);
-}
-
-void bad(const char *msg, ...)
-{
-       va_list args;
-       va_start(args, msg);
-       char buf[1024];
-       vsnprintf(buf, sizeof(buf), msg, args);
-       va_end(args);
-
-       printf("error: %s\n", buf);
-       die("BAD: %s", buf);
-}
-
 /*** Transformation matrices ***/
 
 // Construct string representation of a transformation matrix
@@ -94,6 +41,13 @@ QPDFObjectHandle BBox::to_array()
        return a;
 }
 
+string BBox::to_rect()
+{
+       char buf[64];
+       snprintf(buf, sizeof(buf), "%.1f %.1f %.1f %.1f", x_min, y_min, width(), height());
+       return string(buf);
+}
+
 bool BBox::parse(QPDFObjectHandle h)
 {
        if (!h.isArray() || h.getArrayNItems() != 4)
@@ -112,6 +66,14 @@ bool BBox::parse(QPDFObjectHandle h)
        return true;
 }
 
+BBox::BBox(QPDFObjectHandle box) {
+       if (!parse(box)) {
+               warn("Invalid bounding box, falling back to A4");
+               x_min = 0, x_max = A4_WIDTH;
+               y_min = 0, y_max = A4_HEIGHT;
+       }
+}
+
 void BBox::transform(pdf_matrix &m)
 {
        m.apply(&x_min, &y_min);
@@ -122,6 +84,14 @@ void BBox::transform(pdf_matrix &m)
                swap(y_min, y_max);
 }
 
+void BBox::join(BBox &with)
+{
+       x_min = min(x_min, with.x_min);
+       x_max = max(x_max, with.x_max);
+       y_min = min(y_min, with.y_min);
+       y_max = max(y_max, with.y_max);
+}
+
 /*** Unicode strings ***/
 
 // Construct PDF representation of a UTF-8 string