#include "document.h"
+#include "bezier.h"
+#include <cstdio>
using namespace IPDF;
using namespace std;
+//TODO: Make this work for variable sized Reals
+
+// Loads an std::vector<T> of size num_elements from a file.
+template<typename T>
+static void LoadStructVector(FILE *src_file, size_t num_elems, std::vector<T>& dest)
+{
+ size_t structsread = 0;
+ dest.resize(num_elems);
+ structsread = fread(dest.data(), sizeof(T), num_elems, src_file);
+ if (structsread != num_elems)
+ Fatal("Only read %u structs (expected %u)!", structsread, num_elems);
+}
+
+// Saves an std::vector<T> to a file. Size must be saves separately.
+template<typename T>
+static void SaveStructVector(FILE *dst_file, std::vector<T>& src)
+{
+ size_t written = 0;
+ written = fwrite(src.data(), sizeof(T), src.size(), dst_file);
+ if (written != src.size())
+ Fatal("Only wrote %u structs (expected %u)!", written, src.size());
+}
+
+static void WriteChunkHeader(FILE *dst_file, DocChunkTypes type, uint32_t size)
+{
+ size_t written = 0;
+ written = fwrite(&type, sizeof(type), 1, dst_file);
+ if (written != 1)
+ Fatal("Could not write Chunk header! (ID)");
+ written = fwrite(&size, sizeof(size), 1, dst_file);
+ if (written != 1)
+ Fatal("Could not write Chunk header (size)!");
+}
+
+static bool ReadChunkHeader(FILE *src_file, DocChunkTypes& type, uint32_t& size)
+{
+ if (fread(&type, sizeof(DocChunkTypes), 1, src_file) != 1)
+ return false;
+ if (fread(&size, sizeof(uint32_t), 1, src_file) != 1)
+ return false;
+ return true;
+}
+
+void Document::Save(const string & filename)
+{
+ Debug("Saving document to file \"%s\"...", filename.c_str());
+ FILE * file = fopen(filename.c_str(), "w");
+ if (file == NULL)
+ Fatal("Couldn't open file \"%s\" - %s", filename.c_str(), strerror(errno));
+
+ size_t written;
+ Debug("Number of objects (%u)...", ObjectCount());
+ WriteChunkHeader(file, CT_NUMOBJS, sizeof(m_count));
+ written = fwrite(&m_count, sizeof(m_count), 1, file);
+ if (written != 1)
+ Fatal("Failed to write number of objects!");
+
+ Debug("Object types...");
+ WriteChunkHeader(file, CT_OBJTYPES, m_objects.types.size() * sizeof(ObjectType));
+ SaveStructVector<ObjectType>(file, m_objects.types);
+
+ Debug("Object bounds...");
+ WriteChunkHeader(file, CT_OBJBOUNDS, m_objects.bounds.size() * sizeof(Rect));
+ SaveStructVector<Rect>(file, m_objects.bounds);
+
+ Debug("Object data indices...");
+ WriteChunkHeader(file, CT_OBJINDICES, m_objects.data_indices.size() * sizeof(unsigned));
+ SaveStructVector<unsigned>(file, m_objects.data_indices);
+
+ Debug("Bezier data...");
+ WriteChunkHeader(file, CT_OBJBEZIERS, m_objects.beziers.size() * sizeof(uint8_t));
+ SaveStructVector<Bezier>(file, m_objects.beziers);
+
+ int err = fclose(file);
+ if (err != 0)
+ Fatal("Failed to close file \"%s\" - %s", filename.c_str(), strerror(err));
+
+ Debug("Successfully saved %u objects to \"%s\"", ObjectCount(), filename.c_str());
+}
+
void Document::Load(const string & filename)
{
m_objects.bounds.clear();
m_count = 0;
if (filename == "")
+ {
+ Debug("Loaded empty document.");
return;
+ }
+ Debug("Loading document from file \"%s\"", filename.c_str());
+ FILE * file = fopen(filename.c_str(), "r");
+ if (file == NULL)
+ Fatal("Couldn't open file \"%s\"", filename.c_str(), strerror(errno));
+
+ size_t read;
+
+ DocChunkTypes chunk_type;
+ uint32_t chunk_size;
+ while (ReadChunkHeader(file, chunk_type, chunk_size))
+ {
+ switch(chunk_type)
+ {
+ case CT_NUMOBJS:
+ read = fread(&m_count, sizeof(m_count), 1, file);
+ if (read != 1)
+ Fatal("Failed to read number of objects!");
+ Debug("Number of objects: %u", ObjectCount());
+ break;
+ case CT_OBJTYPES:
+ Debug("Object types...");
+ LoadStructVector<ObjectType>(file, chunk_size/sizeof(ObjectType), m_objects.types);
+ break;
+ case CT_OBJBOUNDS:
+ Debug("Object bounds...");
+ LoadStructVector<Rect>(file, chunk_size/sizeof(Rect), m_objects.bounds);
+ break;
+ case CT_OBJINDICES:
+ Debug("Object data indices...");
+ LoadStructVector<unsigned>(file, chunk_size/sizeof(unsigned), m_objects.data_indices);
+ break;
+ case CT_OBJBEZIERS:
+ Debug("Bezier data...");
+ LoadStructVector<Bezier>(file, chunk_size/sizeof(Bezier), m_objects.beziers);
+ break;
+ }
+ }
+ Debug("Successfully loaded %u objects from \"%s\"", ObjectCount(), filename.c_str());
+}
+
+void Document::Add(ObjectType type, const Rect & bounds, unsigned data_index)
+{
+ m_objects.types.push_back(type);
+ m_objects.bounds.push_back(bounds);
+ m_objects.data_indices.push_back(data_index);
+ ++m_count; // Why can't we just use the size of types or something?
+}
+
+unsigned Document::AddBezierData(const Bezier & bezier)
+{
+ m_objects.beziers.push_back(bezier);
+ return m_objects.beziers.size()-1;
+}
+
+
+void Document::DebugDumpObjects()
+{
+ Debug("Objects for Document %p are:", this);
+ for (unsigned id = 0; id < ObjectCount(); ++id)
+ {
+ Debug("%u. \tType: %u\tBounds: %s", id, m_objects.types[id], m_objects.bounds[id].Str().c_str());
+ }
}
-void Document::Add(Real x, Real y, Real w, Real h)
+bool Document::operator==(const Document & equ) const
{
- m_objects.bounds.push_back(Rect(x, y, w, h));
- m_count++;
+ return (ObjectCount() == equ.ObjectCount()
+ && memcmp(m_objects.bounds.data(), equ.m_objects.bounds.data(), ObjectCount() * sizeof(Rect)) == 0
+ && memcmp(m_objects.data_indices.data(), equ.m_objects.data_indices.data(), ObjectCount() * sizeof(unsigned)) == 0
+ && memcmp(m_objects.beziers.data(), equ.m_objects.beziers.data(), m_objects.beziers.size() * sizeof(Bezier)) == 0);
}
git.ucc.asn.au / ipdf / code.git / blobdiff
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