357 lines
13 KiB
C
357 lines
13 KiB
C
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/* ICONS.C
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Resident Code Segment // Tweak: make non-resident?
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Initing and painting icons in preview sample
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Frosting: Master Theme Selector for Windows '95
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Copyright (c) 1994-1998 Microsoft Corporation. All rights reserved.
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*/
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// ---------------------------------------------
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// Brief file history:
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// Alpha:
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// Beta:
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// Bug fixes
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// ---------
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#include "windows.h"
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#include "stdlib.h"
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#include "frost.h"
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#include "global.h"
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#include "schedule.h" // IsPlatformNT()
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#include "nc.h"
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extern int FAR WriteBytesToBuffer(LPTSTR);
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#define ICONSIZE 32
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#define NUM_ICONS 4
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#define MYDOC_INDEX 3 // Index to MyDocs icon subkey in fsRoot & fsCUIcons
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// Keep in sync with KEYS.H!!
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POINT ptIconOrigin[NUM_ICONS];
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RECT rLabels[NUM_ICONS];
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TCHAR szLabelText[NUM_ICONS][MAX_STRLEN+1];
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#define bThemed (*lpszThemeFile)
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BOOL FAR PASCAL IconsPreviewInit(void)
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{
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int xOrg, iter;
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// icons are centered, evenly spaced, in the icon rectangle in the RC file
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// you can get x origins of icons from the icon area rect
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xOrg = rPreviewIcons.left + (rPreviewIcons.right - rPreviewIcons.left -
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ICONSIZE) / 2;
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for (iter = 0; iter < NUM_ICONS; iter++) {
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ptIconOrigin[iter].x = xOrg;
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}
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// y origins depend on font height in theme
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// load icon label texts
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for (iter = 0; iter < NUM_ICONS; iter++) {
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LoadString(hInstApp, STR_MYCOMPUTER+iter, (LPTSTR)(szLabelText[iter]), MAX_STRLEN);
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}
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return (TRUE);
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}
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void FAR PASCAL IconsPreviewDestroy(void)
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{
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}
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void FAR PASCAL IconsPreviewDraw(HDC hdcDraw, LPTSTR lpszThemeFile)
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{
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UINT uret;
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ICONMETRICS imTheme;
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extern TCHAR szMetrics[];
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extern TCHAR szIM[];
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HFONT hIconFont, hOldFont;
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HICON hTempIcon;
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TEXTMETRIC tmLabel;
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int yLabel, yCushion, yIconSpacing;
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int iter, iTemp;
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int index;
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extern FROST_SUBKEY fsRoot[]; // Win95/Plus95 icon keys
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extern FROST_SUBKEY fsCUIcons[]; // Win98/Plus98 icon keys
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extern TCHAR c_szSoftwareClassesFmt[]; // WinNT reg path from keys.h
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LPTSTR lpszIndex;
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SIZE sizeText;
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COLORREF rgbLabel, rgbLabelText, rgbOldText;
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HBRUSH hbrLabel;
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TCHAR szNTReg[MAX_PATH];
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#ifdef UNICODE
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CHAR szTempA[10];
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#endif
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//
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// Inits
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//
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// Get the icon font; use it to figure y positions of icons and labels;
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// setup DC with font; get lable brush/text color.
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//
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//
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// get the icon font
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// first get the iconmetrics struct
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// if (bThemed && bCBStates[FC_ICONS]) { // icon fonts go with icons cb, not fonts
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if (bThemed && bCBStates[FC_FONTS]) { // icon fonts go with _fonts_ now !!!!
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uret = (UINT) GetPrivateProfileString((LPTSTR)szMetrics, (LPTSTR)szIM,
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(LPTSTR)szNULL,
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(LPTSTR)pValue, MAX_VALUELEN,
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lpszThemeFile);
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Assert(uret, TEXT("problem getting stored icon metrics for icon preview draw\n"));
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// translate stored data string to ICONMETRICS bytes
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WriteBytesToBuffer((LPTSTR)pValue); // char str read from and binary bytes
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// written to pValue. It's OK.
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// get it into global ICONMETRICS struct
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#ifdef UNICODE
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// ICONMETRICS are stored in ANSI format in the Theme file so we
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// need to convert to UNICODE
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ConvertIconMetricsToWIDE((LPICONMETRICSA)pValue, (LPICONMETRICSW)&imTheme);
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#else
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// Not UNICODE so no need to convert...
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imTheme = *((LPICONMETRICS)pValue);
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#endif
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}
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else {
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imTheme.cbSize = sizeof(imTheme);
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SystemParametersInfo(SPI_GETICONMETRICS, sizeof(imTheme),
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(void far *)(LPICONMETRICS)&imTheme, FALSE);
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}
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// then create the font
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hIconFont = CreateFontIndirect(&imTheme.lfFont);
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// and use it in this DC
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if (hIconFont)
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hOldFont = SelectObject(hdcDraw, hIconFont);
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//
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// now that we have the font, we can get the y origins for the icons
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// and the y extremities of the text labels
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// figure label height
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GetTextMetrics(hdcDraw, &tmLabel);
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// yLabel = (tmLabel.tmHeight*13)/9; // very good estimate; else try 11/9
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yLabel = tmLabel.tmHeight; // no, just text height will do
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// and cushion between bottom of icons and their labels
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yCushion = (yLabel*4)/13; // pretty good guess
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// icons are centered, evenly spaced, in the icon rectangle in the RC file
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yIconSpacing = ( rPreviewIcons.bottom - rPreviewIcons.top
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- NUM_ICONS * (yLabel + yCushion + ICONSIZE) ) / NUM_ICONS;
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Assert(yIconSpacing > 0, TEXT("neg yIconSpacing implies icon preview rect too short\n"));
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ptIconOrigin[0].y = rPreviewIcons.top + yIconSpacing/2;
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for (iter = 1; iter < NUM_ICONS; iter ++) {
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ptIconOrigin[iter].y = ptIconOrigin[iter-1].y +
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ICONSIZE + yCushion + yLabel + yIconSpacing;
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}
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// labels are where you now expect them
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for (iter = 0; iter < NUM_ICONS; iter ++) {
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rLabels[iter].top = ptIconOrigin[iter].y + ICONSIZE + yCushion;
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rLabels[iter].bottom = rLabels[iter].top + yLabel;
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}
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//
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// final init involves colors (and brush) for labels and label text
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// get desktop background color
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if (bThemed && bCBStates[FC_COLORS]) { // getting from selected theme
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GetPrivateProfileString((LPTSTR)TEXT("Control Panel\\Colors"),
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(LPTSTR)TEXT("Background"),
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(LPTSTR)szNULL,
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(LPTSTR)szMsg, MAX_MSGLEN,
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lpszThemeFile);
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// translate to color
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rgbLabel = RGBStringToColor((LPTSTR)szMsg);
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}
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else // using cur windows settings
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rgbLabel = GetSysColor(COLOR_BACKGROUND);
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// then make that the nearest solid color for label background
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rgbLabel = GetNearestColor(hdcDraw, rgbLabel);
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// now use a HACK HACK HACK HACK brilliant method for getting text color
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if ((GetRValue(rgbLabel) > 128) ||
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(GetGValue(rgbLabel) > 128) ||
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(GetBValue(rgbLabel) > 128) )
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rgbLabelText = RGB(0,0,0); // black text on lighter label
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else
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rgbLabelText = RGB(255,255,255); // white text on darker label
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// and then create the background brush and set the text color
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hbrLabel = CreateSolidBrush(rgbLabel);
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rgbOldText = SetTextColor(hdcDraw, rgbLabelText);
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SetBkMode(hdcDraw, TRANSPARENT);
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//
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// now we can get each of the icons and draw them at the right spot
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// and while you're at it draw the labels
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for (iter = 0; iter < NUM_ICONS; iter ++) {
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// first get filename into temp global buffer szMsg
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if (bThemed && bCBStates[FC_ICONS]) { // getting from selected theme
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GetPrivateProfileString((LPTSTR)fsCUIcons[iter].szSubKey,
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// SPECIAL UGLY CASE FOR TRASH CAN
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(LPTSTR)(iter == 2 ? TEXT("full") : FROST_DEFSTR),
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(LPTSTR)szNULL,
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(LPTSTR)szMsg, MAX_MSGLEN,
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lpszThemeFile);
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// If the key is null we might have an "old" Plus95 *.Theme file
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// so let's use the Win95 keyname instead
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if (!*szMsg) {
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GetPrivateProfileString((LPTSTR)fsRoot[iter].szSubKey,
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// SPECIAL UGLY CASE FOR TRASH CAN
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(LPTSTR)(iter == 2 ? TEXT("full") : FROST_DEFSTR),
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(LPTSTR)szNULL,
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(LPTSTR)szMsg, MAX_MSGLEN,
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lpszThemeFile);
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}
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// PLUS98 bug 1042
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// If this is the MyDocs icon and there is no setting for
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// it in the Theme file then we need to default to the
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// szMyDocsDefault icon.
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if ((MYDOC_INDEX == iter) && (!*szMsg)) {
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lstrcpy(szMsg, MYDOC_DEFSTR);
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}
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// expand filename string as necessary
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InstantiatePath((LPTSTR)szMsg, MAX_MSGLEN);
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// search for file if necessary, see if found
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// ConfirmFile on NULL string returns "CF_EXISTS" so have
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// added "|| !*szMsg" case to this conditional to check for it
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if ((ConfirmFile((LPTSTR)szMsg, TRUE) == CF_NOTFOUND) || !*szMsg) {
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// if file not found, nothing applied --> keeps cur sys setting
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szMsg[0] = TEXT('\0');
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HandGet(HKEY_CURRENT_USER,
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(LPTSTR)fsCUIcons[iter].szSubKey,
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// SPECIAL UGLY CASE FOR TRASH CAN
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(LPTSTR)(iter == 2 ? TEXT("full") : szNULL),
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// null gives default string
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(LPTSTR)szMsg);
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// If we failed to get a string from the CURRENT_USER branch
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// go try the CLASSES_ROOT branch instead.
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if (!*szMsg) {
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HandGet(HKEY_CLASSES_ROOT,
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(LPTSTR)fsRoot[iter].szSubKey,
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// SPECIAL UGLY CASE FOR TRASH CAN
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(LPTSTR)(iter == 2 ? TEXT("full") : szNULL),
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// null gives default string
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(LPTSTR)szMsg);
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}
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}
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}
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else { // using cur windows settings
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// First try getting the icon from the appropriate
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// CURRENT_USER branch for this platform
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szMsg[0] = TEXT('\0');
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if (IsPlatformNT())
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{
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lstrcpy(szNTReg, c_szSoftwareClassesFmt);
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lstrcat(szNTReg, fsRoot[iter].szSubKey);
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HandGet(HKEY_CURRENT_USER,
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(LPTSTR)szNTReg,
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// SPECIAL UGLY CASE FOR TRASH CAN
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(LPTSTR)(iter == 2 ? TEXT("full") : szNULL),
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// null gives default string
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(LPTSTR)szMsg);
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}
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else // not NT
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{
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HandGet(HKEY_CURRENT_USER,
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(LPTSTR)fsCUIcons[iter].szSubKey,
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// SPECIAL UGLY CASE FOR TRASH CAN
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(LPTSTR)(iter == 2 ? TEXT("full") : szNULL),
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// null gives default string
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(LPTSTR)szMsg);
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}
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// If we got a NULL string from the CURRENT_USER branch then
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// try the CLASSES_ROOT branch instead
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if (!*szMsg) {
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HandGet(HKEY_CLASSES_ROOT,
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(LPTSTR)fsRoot[iter].szSubKey,
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// SPECIAL UGLY CASE FOR TRASH CAN
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(LPTSTR)(iter == 2 ? TEXT("full") : szNULL),
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// null gives default string
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(LPTSTR)szMsg);
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}
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}
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// now load the icon; may have index into file. format: "file,index"
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lpszIndex = FindChar((LPTSTR)szMsg, TEXT(','));
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if (*lpszIndex) { // if found a comma, then indexed icon
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#ifdef UNICODE
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// latoi doesn't like wide strings -- convert to ANSI before calling
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wcstombs(szTempA, CharNext(lpszIndex), sizeof(szTempA));
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index = latoi(szTempA);
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#else
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index = latoi(CharNext(lpszIndex));
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#endif
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*lpszIndex = 0; // got index then null term filename in szMsg
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}
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else { // just straight icon file or no index
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index = 0;
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}
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// Get proper res ICON from file
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ExtractPlusColorIcon(szMsg, index, &hTempIcon, 0, 0);
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// draw the icon at the right spot
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if (hTempIcon)
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DrawIconEx(hdcDraw, ptIconOrigin[iter].x, ptIconOrigin[iter].y,
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hTempIcon, ICONSIZE, ICONSIZE, 0, NULL, DI_NORMAL);
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// figure the label width for the font and text string
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GetTextExtentPoint32(hdcDraw, (LPTSTR)(szLabelText[iter]),
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lstrlen((LPTSTR)(szLabelText[iter])),
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(LPSIZE)&sizeText);
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iTemp = (rPreviewIcons.right - rPreviewIcons.left - (int)(sizeText.cx)) / 2;
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rLabels[iter].left = rPreviewIcons.left + iTemp
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- (yLabel*3)/13; // very good estimate
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rLabels[iter].right = rPreviewIcons.right - iTemp
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+ (yLabel*3)/13; // very good estimate
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// draw label background in solid color version of dt bkgd color
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FillRect(hdcDraw, (LPRECT)&(rLabels[iter]), hbrLabel);
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// draw actual text string there, too
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DrawText(hdcDraw, (LPTSTR)(szLabelText[iter]),
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lstrlen((LPTSTR)(szLabelText[iter])),
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(LPRECT)&(rLabels[iter]),
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DT_CENTER | DT_VCENTER | DT_NOCLIP | DT_SINGLELINE
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);
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// individual icon draw Cleanup
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if (hTempIcon)
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DestroyIcon(hTempIcon);
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}
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//
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// cleanup
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if (hbrLabel) DeleteObject(hbrLabel);
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if (rgbOldText != CLR_INVALID) SetTextColor(hdcDraw, rgbOldText);
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if (hIconFont) {
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SelectObject(hdcDraw, hOldFont);
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DeleteObject(hIconFont);
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}
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}
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