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DrawFile
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GuiDrawFile
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2003-02-14
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//--------------------------------------------------------------------------
//
// Copyright (c) 2002, Colin Granville
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or
// without modification, are permitted provided that the following
// conditions are met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials
// provided with the distribution.
//
// * The name Colin Granville may not be used to endorse or promote
// products derived from this software without specific prior
// written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
// OF THE POSSIBILITY OF SUCH DAMAGE.
//
//--------------------------------------------------------------------------
#ifndef GuiDrawFile_h
#define GuiDrawFile_h
#include "GuiBBox.h"
#include "swis.h"
#include "stl:string.h"
#include <stdlib.h>
#include "flex_c.h"
class GuiDrawFileObject
{
public:
int typeId;
size_t size;
};
class GuiDrawFileGraphicsObject : public GuiDrawFileObject
{
public:
GuiBBox bounds;
};
class GuiTransform
{
public:
GuiTransform() {m0=m3=(1<<16);m1=m2=m4=m5=0;}
int m0,m1,m2,m3,m4,m5;
};
class GuiDrawFile
{
private:
bool extend(size_t);
FlexChar data;
enum {FILE_FAILED=1,OBJECT_FAILED=2};
public:
GuiDrawFile(const char* programName);
virtual ~GuiDrawFile();
void reopen();
_kernel_oserror* save(const char* filename);
_kernel_oserror* render(const GuiTransform* trans=0, const GuiBBox* clip=0, bool blendFont=1) const;
_kernel_oserror* getBBox(GuiBBox&,const GuiTransform* trans=0) const;
_kernel_oserror* declareFonts(bool dont_download=0) const;
void put(size_t i)
{
if (size<=capacity-sizeof(size_t) || extend(sizeof(size_t)))
{
((size_t&)data.at(size))=i;
size+=sizeof(size_t);
}
}
void put(int i) {put((size_t)i);}
void put(char c)
{
if (size<capacity || extend(sizeof(char))) data[size++]=c;
}
char* getPtr(int pos) {return &data.at(pos);}
const char* getPtr(int pos) const {return &data.at(pos);}
enum {npos=-1}; //invalid size_t
size_t getSize() const {return size;}
size_t startObject(size_t size); //returns position of object
void endObject();
void endCurrentObject();
void addBBox(const GuiBBox& bbox) {
if (bbox.xmin<bounds.xmin) bounds.xmin=bbox.xmin;
if (bbox.xmax>bounds.xmax) bounds.xmax=bbox.xmax;
if (bbox.ymin<bounds.ymin) bounds.ymin=bbox.ymin;
if (bbox.ymax>bounds.ymax) bounds.ymax=bbox.ymax;
}
void setBBox(const GuiBBox& bbox) {bounds=bbox;}
void align() {size=((size+3) &~3);}
bool hasFailed() {return failed;}
void ensureMem(unsigned int size);
private:
size_t size;
size_t capacity;
GuiBBox bounds;
string programName;
int currentObject;
int failed;
void setBBox();
void setBBox() const;
size_t allocate(size_t size);
};
#endif