DIALOG.C
/******************************Module*Header*******************************\
* Module Name: dialog.c
*
* Dialog box functions for the OpenGL-based 3D Text screen saver.
*
* Copyright (c) 1994 Microsoft Corporation
\**************************************************************************/
#include <windows.h>
#include <commdlg.h>
#include <scrnsave.h>
#include <GL\gl.h>
#include <math.h>
#include <memory.h>
#include <string.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <malloc.h>
#include <sys\timeb.h>
#include <time.h>
#include "sscommon.h"
#include "sstext3d.h"
// Global screen saver settings.
static int idsStyles[NUM_DEMOS] =
{IDS_DEMO_STRING, IDS_DEMO_CLOCK};
static int idsRotStyles[NUM_ROTSTYLES] =
{ IDS_ROTSTYLE_NONE,
IDS_ROTSTYLE_SEESAW,
IDS_ROTSTYLE_WOBBLE,
IDS_ROTSTYLE_RANDOM
};
// local funtions
LONG WndProc(HWND, UINT, WPARAM, LPARAM);
static void InitAttrContext( AttrContext *pac );
static void getFont( HWND hDlg);
static void updateDialogControls(HWND hDlg);
/******************************Public*Routine******************************\
* getIniSettings
*
* Get the screen saver configuration options from .INI file/registry.
*
\**************************************************************************/
void
getIniSettings()
{
int options;
int optMask = 1;
TCHAR szDefaultBitmap[MAX_PATH];
int iPos;
// Initialize the global AttrContext
InitAttrContext( &gac );
// Load resources
LoadString(hMainInstance, IDS_GENNAME, szScreenSaver,
sizeof(szScreenSaver) / sizeof(TCHAR));
// Get registry settings
if( ss_RegistrySetup( hMainInstance, IDS_SAVERNAME, IDS_INIFILE ) )
{
// get demo type
gac.demoType = ss_GetRegistryInt( IDS_DEMOTYPE, DEMO_STRING );
SS_CLAMP_TO_RANGE2( gac.demoType, 0, MAX_DEMO);
// get rotation style
gac.rotStyle = ss_GetRegistryInt( IDS_ROTSTYLE, ROTSTYLE_RANDOM );
SS_CLAMP_TO_RANGE2( gac.rotStyle, 0, NUM_ROTSTYLES-1 );
// get tesselation
iPos = ss_GetRegistryInt( IDS_TESSELATION, 10 );
SS_CLAMP_TO_RANGE2( iPos, MIN_SLIDER, MAX_SLIDER );
gac.fTesselFact = (float)iPos / 100.0f;
// get size
gac.uSize = ss_GetRegistryInt( IDS_SIZE, 50 );
SS_CLAMP_TO_RANGE2( gac.uSize, MIN_SLIDER, MAX_SLIDER );
// get speed
gac.iSpeed = ss_GetRegistryInt( IDS_SPEED, 50 );
SS_CLAMP_TO_RANGE2( gac.iSpeed, MIN_SLIDER, MAX_SLIDER );
// get surface style
gac.surfStyle = ss_GetRegistryInt( IDS_SURFSTYLE, SURFSTYLE_SOLID );
SS_CLAMP_TO_RANGE2(gac.surfStyle, 0, SURFSTYLE_TEX);
// get font, attributes, and charset
ss_GetRegistryString( IDS_FONT, TEXT("Arial"), gac.szFontName, LF_FACESIZE);
options = ss_GetRegistryInt( IDS_FONT_ATTRIBUTES, 0 );
if( options >= 0 ) {
optMask = 1;
gac.bBold = ((options & optMask) != 0);
optMask <<=1;
gac.bItalic = ((options & optMask) != 0);
}
gac.charSet = ss_GetRegistryInt( IDS_CHARSET, 0 );
// get display string
ss_GetRegistryString( IDS_TEXT, TEXT("OpenGL"), gac.szText, TEXT_LIMIT+1);
// Determine the default .bmp file
ss_GetDefaultBmpFile( szDefaultBitmap );
// Is there a texture specified in the registry that overrides the
// default?
ss_GetRegistryString( IDS_TEXTURE, szDefaultBitmap, gac.texFile.szPathName,
MAX_PATH);
gac.texFile.nOffset = ss_GetRegistryInt( IDS_TEXTURE_FILE_OFFSET, 0 );
}
}
/**************************************************************************\
* ConfigInit
*
\**************************************************************************/
BOOL
ss_ConfigInit( HWND hDlg )
{
return TRUE;
}
/**************************************************************************\
* InitAttrContext
*
* Initialize some of the values in the attribute context
\**************************************************************************/
static void
InitAttrContext( AttrContext *pac )
{
// set some default values
pac->demoType = DEMO_STRING;
pac->surfStyle = SURFSTYLE_SOLID;
pac->fTesselFact = 1.0f;
pac->uSize = 50;
pac->iSpeed = 50;
pac->texFile.szPathName[0] = '\0';
pac->texFile.nOffset = 0;
}
/******************************Public*Routine******************************\
* saveIniSettings
*
* Save the screen saver configuration option to the .INI file/registry.
\**************************************************************************/
static void
saveIniSettings(HWND hDlg)
{
int options;
int optMask = 1;
GetWindowText( GetDlgItem(hDlg, DLG_TEXT_ENTER), gac.szText, TEXT_LIMIT+1);
if( ss_RegistrySetup( hMainInstance, IDS_SAVERNAME, IDS_INIFILE ) )
{
ss_WriteRegistryInt( IDS_DEMOTYPE, gac.demoType );
ss_WriteRegistryInt( IDS_ROTSTYLE, gac.rotStyle );
ss_WriteRegistryInt( IDS_TESSELATION,
ss_GetTrackbarPos(hDlg, DLG_SETUP_TESSEL) );
ss_WriteRegistryInt( IDS_SIZE,
ss_GetTrackbarPos(hDlg, DLG_SETUP_SIZE) );
ss_WriteRegistryInt( IDS_SPEED,
ss_GetTrackbarPos(hDlg, DLG_SETUP_SPEED) );
ss_WriteRegistryInt( IDS_SURFSTYLE, gac.surfStyle );
ss_WriteRegistryString( IDS_FONT, gac.szFontName );
optMask = 1;
options = gac.bBold ? optMask : 0;
optMask <<= 1;
options |= gac.bItalic ? optMask : 0;
ss_WriteRegistryInt( IDS_FONT_ATTRIBUTES, options );
ss_WriteRegistryInt( IDS_CHARSET, gac.charSet );
ss_WriteRegistryString( IDS_TEXT, gac.szText );
ss_WriteRegistryString( IDS_TEXTURE, gac.texFile.szPathName );
ss_WriteRegistryInt( IDS_TEXTURE_FILE_OFFSET, gac.texFile.nOffset );
}
}
/******************************Public*Routine******************************\
* setupDialogControls
*
* Do initial setup of dialog controls.
\**************************************************************************/
static void
setupDialogControls(HWND hDlg)
{
int pos;
InitCommonControls();
// initialize sliders
// tesselation slider
pos = (int)(gac.fTesselFact * 100.0f);
ss_SetupTrackbar( hDlg, DLG_SETUP_TESSEL, MIN_SLIDER, MAX_SLIDER, 1, 9,
pos );
// size slider
ss_SetupTrackbar( hDlg, DLG_SETUP_SIZE, MIN_SLIDER, MAX_SLIDER, 1, 9,
gac.uSize );
// speed slider
ss_SetupTrackbar( hDlg, DLG_SETUP_SPEED, MIN_SLIDER, MAX_SLIDER, 1, 9,
gac.iSpeed);
// set state of other controls
updateDialogControls(hDlg);
}
/******************************Public*Routine******************************\
* updateDialogControls
*
* Updates dialog controls according to current state
\**************************************************************************/
static void
updateDialogControls(HWND hDlg)
{
BOOL bTexSurf;
BOOL bText;
bTexSurf = (gac.surfStyle == SURFSTYLE_TEX );
CheckDlgButton(hDlg, IDC_RADIO_SOLID, !bTexSurf );
CheckDlgButton(hDlg, IDC_RADIO_TEX , bTexSurf );
// set up demo-specific configure button
bText = (gac.demoType == DEMO_STRING) ? TRUE : FALSE;
EnableWindow(GetDlgItem(hDlg, DLG_TEXT_ENTER), bText );
CheckDlgButton(hDlg, IDC_DEMO_STRING, bText );
CheckDlgButton(hDlg, IDC_DEMO_CLOCK, !bText );
// texture: only enable if surfStyle is texture
EnableWindow(GetDlgItem(hDlg, DLG_SETUP_TEX), bTexSurf );
}
/******************************Public*Routine******************************\
* getFont
*
* Calls ChooseFont dialog
\**************************************************************************/
static void
getFont( HWND hDlg)
{
CHOOSEFONT cf = {0};
LOGFONT lf = {0};
HDC hdc;
hdc = GetDC( hDlg );
// Create and select a font.
cf.lStructSize = sizeof(CHOOSEFONT);
cf.hwndOwner = hDlg;
cf.lpLogFont = &lf;
cf.hInstance = hMainInstance;
cf.lpTemplateName = (LPTSTR) MAKEINTRESOURCE(IDD_FONT);
cf.Flags = CF_SCREENFONTS | CF_INITTOLOGFONTSTRUCT | CF_TTONLY |
CF_ENABLETEMPLATE | CF_NOSIMULATIONS;
// setup logfont with current settings
lstrcpy(lf.lfFaceName, gac.szFontName);
lf.lfWeight = (gac.bBold) ? FW_BOLD : FW_NORMAL;
lf.lfItalic = (gac.bItalic) ? (BYTE) 1 : 0;
lf.lfCharSet = gac.charSet;
lf.lfHeight = -37; // value ???
if( ChooseFont(&cf) ) {
// retrieve settings into gac
lstrcpy( gac.szFontName, lf.lfFaceName );
gac.bBold = (lf.lfWeight == FW_NORMAL) ? FALSE : TRUE;
gac.bItalic = (lf.lfItalic) ? TRUE : FALSE;
gac.charSet = lf.lfCharSet;
}
}
BOOL WINAPI RegisterDialogClasses(HANDLE hinst)
{
return TRUE;
}
/******************************Public*Routine******************************\
* ScreenSaverConfigureDialog
*
* Processes messages for the configuration dialog box.
*
\**************************************************************************/
BOOL ScreenSaverConfigureDialog(HWND hDlg, UINT message,
WPARAM wParam, LPARAM lParam)
{
int wTmp;
TCHAR szStr[GEN_STRING_SIZE];
switch (message) {
case WM_INITDIALOG:
getIniSettings();
setupDialogControls(hDlg);
// setup rotStyle combo box
for (wTmp = 0; wTmp < NUM_ROTSTYLES; wTmp++) {
LoadString(hMainInstance, idsRotStyles[wTmp], szStr,
GEN_STRING_SIZE);
SendDlgItemMessage(hDlg, DLG_SETUP_ROTSTYLE, CB_ADDSTRING, 0,
(LPARAM) szStr);
}
SendDlgItemMessage(hDlg, DLG_SETUP_ROTSTYLE, CB_SETCURSEL,
gac.rotStyle, 0);
// display current string in box
SendDlgItemMessage( hDlg, DLG_TEXT_ENTER, EM_LIMITTEXT, TEXT_LIMIT,0);
SetWindowText( GetDlgItem(hDlg, DLG_TEXT_ENTER), gac.szText );
return TRUE;
case WM_COMMAND:
switch (LOWORD(wParam)) {
case DLG_SETUP_TYPES:
switch (HIWORD(wParam))
{
case CBN_EDITCHANGE:
case CBN_SELCHANGE:
gac.demoType =
SendDlgItemMessage(hDlg, DLG_SETUP_TYPES,
CB_GETCURSEL, 0, 0);
updateDialogControls(hDlg);
break;
default:
break;
}
return FALSE;
case DLG_SETUP_ROTSTYLE:
switch (HIWORD(wParam))
{
case CBN_EDITCHANGE:
case CBN_SELCHANGE:
gac.rotStyle =
SendDlgItemMessage(hDlg, DLG_SETUP_ROTSTYLE,
CB_GETCURSEL, 0, 0);
updateDialogControls(hDlg);
break;
default:
break;
}
return FALSE;
case DLG_SETUP_TEX:
// Run choose texture dialog
ss_SelectTextureFile( hDlg, &gac.texFile );
break;
case DLG_SETUP_FONT:
getFont(hDlg);
break;
case IDC_RADIO_SOLID:
case IDC_RADIO_TEX:
gac.surfStyle = IDC_TO_SURFSTYLE( LOWORD(wParam) );
updateDialogControls(hDlg);
break;
case IDC_DEMO_STRING:
case IDC_DEMO_CLOCK:
gac.demoType = IDC_TO_DEMOTYPE( LOWORD(wParam) );
updateDialogControls(hDlg);
if( LOWORD(wParam) == IDC_DEMO_STRING ) {
// set selected text focus
SetFocus( GetDlgItem(hDlg, DLG_TEXT_ENTER) );
SendDlgItemMessage( hDlg, DLG_TEXT_ENTER,
EM_SETSEL, 0, -1 );
}
break;
case IDOK:
saveIniSettings(hDlg);
EndDialog(hDlg, TRUE);
break;
case IDCANCEL:
EndDialog(hDlg, FALSE);
break;
default:
break;
}
return TRUE;
break;
default:
return 0;
}
return 0;
}