X-Git-Url: http://mj.ucw.cz/gitweb/?a=blobdiff_plain;f=jam.h;h=33626040cc3ed58bd70349406f3a0480e7b1d0d9;hb=298d65bac130d6aa4c925c70f3342eb8e68a4b97;hp=47d80be2e534b5d811958d27c8225fd3d2888e00;hpb=50b49b5bf24f448fbcbac99099ef9bad72f89beb;p=paperjam.git diff --git a/jam.h b/jam.h index 47d80be..3362604 100644 --- a/jam.h +++ b/jam.h @@ -1,12 +1,13 @@ /* * PaperJam -- Common declarations * - * (c) 2018 Martin Mares + * (c) 2018--2022 Martin Mares */ #include #include #include +#include using namespace std; @@ -16,6 +17,23 @@ typedef unsigned int uint; #define UNUSED __attribute__((unused)) #define FORMAT_CHECK(x,y,z) __attribute__((format(x,y,z))) +static inline bool is_zero(double z) +{ + return fabs(z) < 1e-6; +} + +static inline bool is_equal(double x, double y) +{ + return is_zero(x-y); +} + +void debug(const char *msg, ...) FORMAT_CHECK(printf, 1, 2); +void warn(const char *msg, ...) FORMAT_CHECK(printf, 1, 2); +void die(const char *msg, ...) FORMAT_CHECK(printf, 1, 2) NONRET; + +// This one is called during execution of commands and propagated as an exception +void err(const char *msg, ...) FORMAT_CHECK(printf, 1, 2) NONRET; + #include "pdf-tools.h" /*** Representation of commands ***/ @@ -37,6 +55,7 @@ enum arg_type { struct arg_def { const char *name; uint type; + const char *help; }; class arg_val { @@ -51,8 +70,10 @@ public: extern arg_val null_arg; struct out_context { + QPDF *pdf; QPDFObjectHandle resources; QPDFObjectHandle xobjects; + QPDFObjectHandle egstates; string contents; int res_cnt; string new_resource(const string type); @@ -60,22 +81,25 @@ struct out_context { }; struct page { - int index; + int index; // Position in the source PDF, 0 for synthesized pages double width; // Physical dimensions of media double height; - BBox bbox; // Bounds useful contents + BBox image_box; // Bounds useful contents virtual void render(out_context *out UNUSED, pdf_matrix xform UNUSED) { abort(); } - page(double _w=0, double _h=0) : width(_w), height(_h) { } - page(page *p) { - index = p->index; - width = p->width; - height = p->height; - bbox = p->bbox; - } + virtual void debug_dump() = 0; + page(double _w=0, double _h=0) : index(0), width(_w), height(_h), image_box() { } + page(page *p) + { + index = p->index; + width = p->width; + height = p->height; + image_box = p->image_box; + } }; struct empty_page : public page { void render(out_context *out UNUSED, pdf_matrix xform UNUSED) { } + void debug_dump() { debug("Empty page"); } empty_page(double _w=0, double _h=0) : page(_w, _h) { }; }; @@ -88,6 +112,7 @@ struct cmd_def { const arg_def *arg_defs; bool has_pipeline; cmd_exec *(*constructor)(cmd *cmd); + const char *help; }; struct cmd { @@ -125,12 +150,16 @@ struct pipeline { extern const char *in_name, *out_name; extern bool recalc_bbox; -extern int debug_mode; +extern int debug_level; extern int debug_indent; +extern bool no_auto_transforms; -void debug(const char *msg, ...) FORMAT_CHECK(printf, 1, 2); -void warn(const char *msg, ...) FORMAT_CHECK(printf, 1, 2); -void die(const char *msg, ...) FORMAT_CHECK(printf, 1, 2) NONRET; +class paperjam_error : public exception { + string message; +public: + paperjam_error(string m) : message(m) { } + const char *what() const noexcept override { return message.c_str(); } +}; // parse.cc @@ -147,3 +176,13 @@ void debug_pages(vector &pages); void process(list &cmds); vector run_command_list(list &cmds, vector &pages); vector gs_bboxes(const char *in); + +class xform_page : public page { + page *orig_page; + pdf_matrix xform; + const char *description; +public: + void render(out_context *out, pdf_matrix xform) override; + void debug_dump() override; + xform_page(page *p, const char *desc, pdf_matrix xf); +};