drawthrd.cpp

来自「《bcb深度历险》 电子书」· C++ 代码 · 共 63 行

//---------------------------------------------------------------------------

#include <vcl.h>
#pragma hdrstop

#include "DrawThrd.h"
#include "xFonts.hpp"

#include <registry.hpp>
#include "util.h"

#pragma package(smart_init)
//---------------------------------------------------------------------------

//   Important: Methods and properties of objects in VCL can only be
//   used in a method called using Synchronize, for example:
//
//      Synchronize(UpdateCaption);
//
//   where UpdateCaption could look like:
//
//      void __fastcall Unit1::UpdateCaption()
//      {
//        Form1->Caption = "Updated in a thread";
//      }
//---------------------------------------------------------------------------

__fastcall TDrawThread::TDrawThread(HWND Wnd)
        : TThread(false)
{
  randomize();
  
  FreeOnTerminate = True;

  FWnd = Wnd;

  FEssay = new TStringList;

  TRegIniFile* r = new TRegIniFile(REGISTRY_KEY);
  try {
    FMoveSpeed = r->ReadInteger(SEC_GENERAL, REG_MOVESPEED, 5);
    FDelayTime = r->ReadInteger(SEC_GENERAL, REG_MOVEDELAYTIME, 10);
    FClearDelayTime = r->ReadInteger(SEC_GENERAL, REG_CLEARDELAYTIME, 10);
    FChangeDelayTime = r->ReadInteger(SEC_GENERAL, REG_CHANGEDELAYTIME, 5000);
  } __finally {
    delete r;
  }

  GetClientRect(FWnd, &FWindowRect);
  FWindowWidth = FWindowRect.Right;
  FWindowHeight = FWindowRect.Bottom;
  FWindowMiddleY = FWindowHeight / 2;
}
//---------------------------------------------------------------------------
__fastcall TDrawThread::~TDrawThread()
{
  delete FEssay;
}
//---------------------------------------------------------------------------
void __fastcall TDrawThread::Execute()
{
  do {
    ChooseAndLoadEssay(); // 匡拒