wave_dlg.cpp

wavlet compression on c++ only cods

// Copyright (c) 1999 Stephen T. Welstead. All rights reserved.
// File wave_dlg.cpp Dialog for choosing wavelet type

#include "wave_dlg.h"
#include "dlgids.h"
#include "waverc.h"

twave_dialog *this_wave_dialog = 0;

BOOL CALLBACK _export twave_dialog_proc(HWND hdlg, UINT message,
     WPARAM wParam, LPARAM lParam) {
     return this_wave_dialog->handle_message(hdlg,message,wParam,
     		lParam);
     }

twave_dialog::twave_dialog (HWND Parent,int init_value):
      tdialog (Parent,"WAVELET_DLG","Wavelet Type") {
      wavelet_choice = init_value;
      for (int i=0;i<NO_OF_WAVELETS;i++)
	  wavelet_button[i] = 0;
      wavelet_button[wavelet_choice] = 1;
      }

BOOL twave_dialog::respond_wm_initdialog () {
      switch (wavelet_choice) {
      case 1:
	 SendDlgItemMessage (hdialog,DAUB4_BUTTON,BM_SETCHECK,1,0);
	 break;
      case 2:
	 SendDlgItemMessage (hdialog,DAUB6_BUTTON,BM_SETCHECK,1,0);
	 break;
      default:
	 SendDlgItemMessage (hdialog,HAAR_BUTTON,BM_SETCHECK,1,0);
	 }  // end switch
      return tdialog::respond_wm_initdialog();
      }

BOOL twave_dialog::respond_wm_command (WPARAM wParam,LPARAM)  {
     int i;
     switch (LOWORD(wParam)) {
     case IDOK:
	 wavelet_button[0] = (int)SendDlgItemMessage(hdialog,
	    HAAR_BUTTON,BM_GETCHECK,0,0);
	 wavelet_button[1] = (int)SendDlgItemMessage(hdialog,
	    DAUB4_BUTTON,BM_GETCHECK,0,0);
	 wavelet_button[2] = (int)SendDlgItemMessage(hdialog,
	    DAUB6_BUTTON,BM_GETCHECK,0,0);
	 for (i=0;i<NO_OF_WAVELETS;i++)
	     if (wavelet_button[i]) {
		wavelet_choice = i;
		break;
		}
         dlg_return_value = 1; 
	 EndDialog(hdialog, TRUE);
	 return 1;
     case IDCANCEL:
         dlg_return_value = 0;
	 EndDialog(hdialog,FALSE);
	 return 0;
     }  /* end switch  */
     return 0;
     }

BOOL twave_dialog::exec_dialog () {
     if (!check_gdlg_instance()) return 0;
     twave_dialog *old_twave_dialog =
            this_wave_dialog;
     this_wave_dialog = this;
     DialogBox(gdlg_instance,rc_title, hwndParent,
	  twave_dialog_proc);
     this_wave_dialog = old_twave_dialog;
     return dlg_return_value;
     }

twave_dialog::~twave_dialog() {
     }