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aa3e500d16
* Add a new Starfield screensaver. By Carlo Bramini (carlo DOT bramix AT libero DOT it). * Adapted the build system files to get it to compile with current trunk. See issue #6270 for more details. svn path=/trunk/; revision=53920
336 lines
9.7 KiB
C
336 lines
9.7 KiB
C
/*
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* Star field screensaver
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*
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* Copyright 2011 Carlo Bramini
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#include <tchar.h>
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#include <commctrl.h>
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#include <shellapi.h>
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#include "resource.h"
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#include "settings.h"
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#define SIZEOF(_v) (sizeof(_v) / sizeof(*_v))
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// Options for the starfield
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SSSTARS Settings;
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// Factory default settings.
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static const SSSTARS FactoryDefaults = {
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MAX_STARS,
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20,
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ROTATION_PERIODIC,
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TRUE,
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TRUE,
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TRUE,
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TRUE
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};
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static const DWORD RotoStrings[] = {
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IDS_ROTATION_NONE,
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IDS_ROTATION_LINEAR,
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IDS_ROTATION_PERIODIC
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};
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static DWORD QueryDWORD(HKEY hKey, LPCTSTR pszValueName, DWORD Default)
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{
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DWORD dwData, dwType, cbData;
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LONG lRes;
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dwType = REG_DWORD;
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cbData = sizeof(DWORD);
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lRes = RegQueryValueEx(
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hKey,
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pszValueName,
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NULL,
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&dwType,
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(LPBYTE)&dwData,
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&cbData);
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if (lRes != ERROR_SUCCESS || dwType != REG_DWORD)
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return Default;
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return dwData;
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}
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static void SaveDWORD(HKEY hKey, LPCTSTR pszValueName, DWORD dwValue)
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{
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RegSetValueEx(hKey, pszValueName, 0, REG_DWORD, (LPBYTE)&dwValue, sizeof(dwValue));
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}
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void LoadSettings(void)
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{
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HKEY hKey;
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LONG lRes;
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Settings = FactoryDefaults;
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lRes = RegCreateKeyEx(
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HKEY_CURRENT_USER,
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_T("Software\\Microsoft\\ScreenSavers\\Ssstars"),
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0,
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_T(""),
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0,
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KEY_READ,
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NULL,
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&hKey,
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NULL);
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if (lRes != ERROR_SUCCESS)
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return;
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Settings.uiNumStars = QueryDWORD(hKey, _T("NumberOfStars"), Settings.uiNumStars);
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Settings.uiSpeed = QueryDWORD(hKey, _T("Speed"), Settings.uiSpeed);
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Settings.uiRotation = QueryDWORD(hKey, _T("TypeOfRotation"), Settings.uiRotation);
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Settings.bDoBlending = QueryDWORD(hKey, _T("DoBlending"), Settings.bDoBlending);
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Settings.bFinePerspective = QueryDWORD(hKey, _T("FinePerspective"), Settings.bFinePerspective);
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Settings.bEnableFiltering = QueryDWORD(hKey, _T("EnableFiltering"), Settings.bEnableFiltering);
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Settings.bSmoothShading = QueryDWORD(hKey, _T("SmoothShading"), Settings.bSmoothShading);
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// Check the number of stars to be in range
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if (Settings.uiNumStars < MIN_STARS)
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Settings.uiNumStars = MIN_STARS;
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else
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if (Settings.uiNumStars > MAX_STARS)
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Settings.uiNumStars = MAX_STARS;
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// Check the speed to be in range
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if (Settings.uiSpeed < MIN_SPEED)
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Settings.uiSpeed = MIN_SPEED;
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else
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if (Settings.uiSpeed > MAX_SPEED)
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Settings.uiSpeed = MAX_SPEED;
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// Check type of rotation to be in range
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if (Settings.uiRotation != ROTATION_NONE &&
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Settings.uiRotation != ROTATION_LINEAR &&
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Settings.uiRotation != ROTATION_PERIODIC)
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Settings.uiRotation = ROTATION_PERIODIC;
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RegCloseKey(hKey);
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}
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void SaveSettings(void)
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{
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HKEY hKey;
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LONG lRes;
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lRes = RegCreateKeyEx(
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HKEY_CURRENT_USER,
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_T("Software\\Microsoft\\ScreenSavers\\Ssstars"),
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0,
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_T(""),
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0,
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KEY_WRITE,
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NULL,
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&hKey,
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NULL);
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if (lRes != ERROR_SUCCESS)
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return;
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SaveDWORD(hKey, _T("NumberOfStars"), Settings.uiNumStars);
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SaveDWORD(hKey, _T("Speed"), Settings.uiSpeed);
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SaveDWORD(hKey, _T("TypeOfRotation"), Settings.uiRotation);
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SaveDWORD(hKey, _T("DoBlending"), Settings.bDoBlending);
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SaveDWORD(hKey, _T("FinePerspective"), Settings.bFinePerspective);
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SaveDWORD(hKey, _T("EnableFiltering"), Settings.bEnableFiltering);
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SaveDWORD(hKey, _T("SmoothShading"), Settings.bSmoothShading);
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RegCloseKey(hKey);
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}
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static void SetupControls(HWND hWnd)
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{
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TCHAR Strings[256];
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HINSTANCE hInstance;
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UINT x, gap;
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LOGFONT lf;
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HFONT hFont;
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HBITMAP hCosmos;
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HDC hDC, hMemDC;
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HGDIOBJ hOldBmp, hOldFnt;
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SIZE sizeReactOS;
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SIZE sizeStarfield;
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BITMAP bm;
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hInstance = (HINSTANCE)GetWindowLong(hWnd, GWL_HINSTANCE);
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SendDlgItemMessage(hWnd, IDC_SLIDER_NUM_OF_STARS, TBM_SETRANGE, FALSE, MAKELPARAM(MIN_STARS, MAX_STARS));
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SendDlgItemMessage(hWnd, IDC_SLIDER_SPEED, TBM_SETRANGE, FALSE, MAKELPARAM(1, 100));
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for (x = 0; x < ROTATION_ITEMS; x++)
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{
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LoadString(hInstance, RotoStrings[x], Strings, sizeof(Strings)/sizeof(TCHAR));
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SendDlgItemMessage(hWnd, IDC_COMBO_ROTATION, CB_ADDSTRING, 0, (LPARAM)Strings);
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}
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hCosmos = LoadImage(hInstance, MAKEINTRESOURCE(IDB_COSMOS), IMAGE_BITMAP, 0, 0, LR_CREATEDIBSECTION | LR_DEFAULTSIZE);
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hDC = GetDC(hWnd);
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hMemDC = CreateCompatibleDC(hDC);
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// Create the font for the title
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ZeroMemory(&lf, sizeof(lf));
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lf.lfWeight = FW_THIN;
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lf.lfCharSet = ANSI_CHARSET;
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lf.lfQuality = PROOF_QUALITY;
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lf.lfHeight = 36;
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_tcscpy(lf.lfFaceName, _T("Tahoma"));
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hFont = CreateFontIndirect(&lf);
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hOldBmp = SelectObject(hMemDC, hCosmos);
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hOldFnt = SelectObject(hMemDC, hFont);
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SetBkMode(hMemDC, TRANSPARENT);
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SetTextColor(hMemDC, RGB(0xFF, 0xFF, 0xFF));
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x = LoadString(hInstance, IDS_DESCRIPTION, Strings, sizeof(Strings)/sizeof(TCHAR));
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GetTextExtentPoint32(hMemDC, _T("ReactOS"), 7, &sizeReactOS);
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GetTextExtentPoint32(hMemDC, Strings, x, &sizeStarfield);
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GetObject(hCosmos, sizeof(BITMAP), &bm);
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gap = bm.bmHeight - sizeReactOS.cy - sizeStarfield.cy;
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TextOut(hMemDC, 16, gap * 2 / 5, _T("ReactOS"), 7);
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TextOut(hMemDC, 16, gap * 3 / 5 + sizeReactOS.cy, Strings, x);
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SelectObject(hMemDC, hOldBmp);
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SelectObject(hMemDC, hOldFnt);
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DeleteObject(hFont);
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DeleteDC(hMemDC);
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ReleaseDC(hWnd, hDC);
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SendDlgItemMessage(hWnd, IDC_IMAGE_COSMOS, STM_SETIMAGE, IMAGE_BITMAP, (LPARAM)hCosmos);
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}
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static void ApplySettings(HWND hWnd)
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{
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SendDlgItemMessage(hWnd, IDC_SLIDER_NUM_OF_STARS, TBM_SETPOS, TRUE, Settings.uiNumStars);
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SetDlgItemInt(hWnd, IDC_TEXT_NUM_OF_STARS, Settings.uiNumStars, FALSE);
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SendDlgItemMessage(hWnd, IDC_SLIDER_SPEED, TBM_SETPOS, TRUE, Settings.uiSpeed);
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SetDlgItemInt(hWnd, IDC_TEXT_SPEED, Settings.uiSpeed, FALSE);
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SendDlgItemMessage(hWnd, IDC_COMBO_ROTATION, CB_SETCURSEL, (WPARAM)Settings.uiRotation, 0);
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SendDlgItemMessage(hWnd, IDC_CHECK_DOBLENDING, BM_SETCHECK, (WPARAM)Settings.bDoBlending, 0);
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SendDlgItemMessage(hWnd, IDC_CHECK_PERSPECTIVE, BM_SETCHECK, (WPARAM)Settings.bFinePerspective, 0);
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SendDlgItemMessage(hWnd, IDC_CHECK_FILTERING, BM_SETCHECK, (WPARAM)Settings.bEnableFiltering, 0);
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SendDlgItemMessage(hWnd, IDC_CHECK_SHADING, BM_SETCHECK, (WPARAM)Settings.bSmoothShading, 0);
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}
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static void ReadSettings(HWND hWnd)
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{
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Settings.uiNumStars = SendDlgItemMessage(hWnd, IDC_SLIDER_NUM_OF_STARS, TBM_GETPOS, 0, 0);
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SetDlgItemInt(hWnd, IDC_TEXT_NUM_OF_STARS, Settings.uiNumStars, FALSE);
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Settings.uiSpeed = SendDlgItemMessage(hWnd, IDC_SLIDER_SPEED, TBM_GETPOS, 0, 0);
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SetDlgItemInt(hWnd, IDC_TEXT_SPEED, Settings.uiSpeed, FALSE);
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Settings.uiRotation = SendDlgItemMessage(hWnd, IDC_COMBO_ROTATION, CB_GETCURSEL, 0, 0);
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Settings.bDoBlending = SendDlgItemMessage(hWnd, IDC_CHECK_DOBLENDING, BM_GETCHECK, 0, 0);
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Settings.bFinePerspective = SendDlgItemMessage(hWnd, IDC_CHECK_PERSPECTIVE, BM_GETCHECK, 0, 0);
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Settings.bEnableFiltering = SendDlgItemMessage(hWnd, IDC_CHECK_FILTERING, BM_GETCHECK, 0, 0);
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Settings.bSmoothShading = SendDlgItemMessage(hWnd, IDC_CHECK_SHADING, BM_GETCHECK, 0, 0);
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}
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static BOOL OnCommandAbout(HWND hWnd)
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{
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HINSTANCE hInstance;
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HICON hIcon;
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TCHAR szAppName[256];
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TCHAR szAuthor[256];
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TCHAR szLicense[1024];
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hInstance = (HINSTANCE)GetWindowLong(hWnd, GWL_HINSTANCE);
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hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_STARFIELD));
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LoadString(hInstance, IDS_DESCRIPTION, szAppName, SIZEOF(szAppName));
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LoadString(hInstance, IDS_AUTHOR, szAuthor, SIZEOF(szAuthor));
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LoadString(hInstance, IDS_LICENSE, szLicense, SIZEOF(szLicense));
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_tcscat(szAppName, _T("#"));
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_tcscat(szAppName, szAuthor);
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ShellAbout(hWnd, szAppName, szLicense, hIcon);
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return TRUE;
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}
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//
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// Dialogbox procedure for Configuration window
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//
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BOOL CALLBACK ScreenSaverConfigureDialog(HWND hDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)
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{
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switch (uMsg) {
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case WM_INITDIALOG:
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LoadSettings();
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SetupControls(hDlg);
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ApplySettings(hDlg);
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return TRUE;
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case WM_COMMAND:
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switch (LOWORD( wParam )) {
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case IDOK:
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// Write configuration
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SaveSettings();
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// Fall down...
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case IDCANCEL:
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EndDialog( hDlg, LOWORD( wParam ));
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return TRUE;
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case IDC_BUTTON_ABOUT:
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return OnCommandAbout(hDlg);
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}
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case WM_HSCROLL:
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ReadSettings(hDlg);
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return TRUE;
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}
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return FALSE;
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}
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BOOL WINAPI RegisterDialogClasses(HANDLE hInst)
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{
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InitCommonControls();
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return TRUE;
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}
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