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//---------------------------------------------------------------------------
#include <stdio.h>
#include <vcl.h>
#pragma hdrstop
#include "rtklib.h"
#include "viewer.h"
#include "vieweropt.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TTextViewer *TextViewer;
TColor TTextViewer::Color1,TTextViewer::Color2;
TFont *TTextViewer::FontD;
//---------------------------------------------------------------------------
__fastcall TTextViewer::TTextViewer(TComponent* Owner)
: TForm(Owner)
{
Option=1;
TextStr=NULL;
}
//---------------------------------------------------------------------------
void __fastcall TTextViewer::FormShow(TObject *Sender)
{
if (Option==0) {
BtnReload->Visible=false;
BtnRead ->Visible=false;
}
else if (Option==2) {
BtnReload->Visible=false;
BtnRead ->Caption="Save...";
}
UpdateText();
}
//---------------------------------------------------------------------------
void __fastcall TTextViewer::BtnReloadClick(TObject *Sender)
{
Read(File);
}
//---------------------------------------------------------------------------
void __fastcall TTextViewer::BtnReadClick(TObject *Sender)
{
if (BtnRead->Caption=="Save...") {
SaveDialog->FileName=File;
if (!SaveDialog->Execute()) return;
Save(SaveDialog->FileName);
}
else {
OpenDialog->FileName=File;
if (!OpenDialog->Execute()) return;
Read(OpenDialog->FileName);
}
}
//---------------------------------------------------------------------------
void __fastcall TTextViewer::BtnOptClick(TObject *Sender)
{
ViewerOptDialog->Left=Left+Width/2-ViewerOptDialog->Width/2;
ViewerOptDialog->Top=Top+Height/2-ViewerOptDialog->Height/2;
if (ViewerOptDialog->ShowModal()!=mrOk) return;
UpdateText();
}
//---------------------------------------------------------------------------
void __fastcall TTextViewer::BtnCloseClick(TObject *Sender)
{
Release();
}
//---------------------------------------------------------------------------
void __fastcall TTextViewer::BtnFindClick(TObject *Sender)
{
wchar_t *p,*str=FindStr->Text.c_str();
if (!TextStr) return;
if (Text->SelLength>0) p=TextStr+Text->SelStart+1;
else p=TextStr+Text->SelStart;
if ((p=wcsstr(p,str))) {
Text->SelStart=(int)(p-TextStr);
Text->SelLength=wcslen(str);
}
else {
Text->SelStart=0;
Text->SelLength=0;
}
}
//---------------------------------------------------------------------------
void __fastcall TTextViewer::FindStrKeyPress(TObject *Sender, char &Key)
{
if (Key=='\r') BtnFindClick(Sender);
}
//---------------------------------------------------------------------------
void __fastcall TTextViewer::Read(AnsiString file)
{
char s[256],*path[]={s};
if (expath(file.c_str(),path,1)<1) return;
AnsiString str(path[0]);
Screen->Cursor=crHourGlass;
try {
Text->Lines->LoadFromFile(str);
// read text for search
ReadText(str);
}
catch (...) {
Screen->Cursor=crDefault;
return;
}
Screen->Cursor=crDefault;
Caption=str;
File=file;
}
//---------------------------------------------------------------------------
void __fastcall TTextViewer::ReadText(AnsiString file)
{
FILE *fp;
int i,len,n=0,nmax=0;
char buff[1024];
wchar_t wbuff[1024];
free(TextStr); TextStr=NULL;
if (!(fp=fopen(file.c_str(),"r"))) return;
for (i=0;fgets(buff,sizeof(buff),fp)&&i<MAXLINE;i++) {
::MultiByteToWideChar(CP_UTF8,0,buff,-1,wbuff,1024);
len=wcslen(wbuff);
if (n+len+1>=nmax) {
nmax=nmax<=0?16384:nmax*2;
if (!(TextStr=(wchar_t *)realloc(TextStr,sizeof(wchar_t)*nmax))) break;
}
wcscpy(TextStr+n,wbuff);
n+=len;
}
fclose(fp);
}
//---------------------------------------------------------------------------
void __fastcall TTextViewer::Save(AnsiString file)
{
Screen->Cursor=crHourGlass;
try {
Text->Lines->SaveToFile(file);
}
catch (...) {
Screen->Cursor=crDefault;
return;
}
Screen->Cursor=crDefault;
File=file;
}
//---------------------------------------------------------------------------
void __fastcall TTextViewer::UpdateText(void)
{
Text->Font=FontD;
Text->Font->Color=Color1;
Text->Color=Color2;
}
//---------------------------------------------------------------------------
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