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Added font enumeratiion demo

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svn path=/trunk/; revision=9713
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Steven Edwards 2004-06-18 17:26:59 +00:00
parent 81d4e43dda
commit 6f53b7dbce
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272
reactos/apps/tests/enumfonts/enumfonts.cpp Executable file
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// ------------------------------------------------------------------
// Windows 2000 Graphics API Black Book
// Chapter 4 - Listing 4.2 (Font Enumeration Demo)
//
// Created by Damon Chandler <dmc27@ee.cornell.edu>
// Updates can be downloaded at: <www.coriolis.com>
//
// Please do not hesistate to e-mail me at dmc27@ee.cornell.edu
// if you have any questions about this code.
// ------------------------------------------------------------------
//>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
#include <windows.h>
#include <cassert>
#ifndef SNDMSG
#define SNDMSG ::SendMessage
#define SNDMSG SendMessage
#endif /* ifndef SNDMSG */
//<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
HWND hListBox = NULL;
const int ID_LISTBOX = 101;
HINSTANCE hInst;
const char* WndClassName = "GMainWnd";
LRESULT CALLBACK MainWndProc(HWND hWnd, UINT msg, WPARAM wParam,
LPARAM lParam);
int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE, LPTSTR,
int nCmdShow)
{
hInst = hInstance;
WNDCLASS wc;
memset(&wc, 0, sizeof(WNDCLASS));
wc.style = CS_VREDRAW | CS_HREDRAW;
wc.lpszClassName = WndClassName;
wc.lpfnWndProc = MainWndProc;
wc.hInstance = hInstance;
wc.hCursor = NULL; //LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = reinterpret_cast<HBRUSH>(
COLOR_BTNFACE + 1
);
if (RegisterClass(&wc))
{
HWND hWnd =
CreateWindow(
WndClassName, TEXT("Font Enumeration Demo"),
WS_OVERLAPPED | WS_SYSMENU | WS_CAPTION |
WS_VISIBLE | WS_CLIPCHILDREN,
CW_USEDEFAULT, CW_USEDEFAULT, 295, 285,
NULL, NULL, hInst, NULL
);
if (hWnd)
{
ShowWindow(hWnd, nCmdShow);
UpdateWindow(hWnd);
MSG msg;
while (GetMessage(&msg, NULL, 0, 0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
}
return 0;
}
//-------------------------------------------------------------------------
int CALLBACK MyEnumFontFamExProc(ENUMLOGFONTEX *lpelfe,
NEWTEXTMETRICEX* lpntme, int FontType, LPARAM lParam)
{
if (FontType == TRUETYPE_FONTTYPE)
{
// if the typeface name is not already in the list
LPARAM name = reinterpret_cast<LPARAM>(lpelfe->elfFullName);
if (SNDMSG(hListBox, LB_FINDSTRINGEXACT, -1, name) == LB_ERR)
{
// add each font to the list box
int index = SNDMSG(hListBox, LB_ADDSTRING, 0, name);
// fix the size of the font
lpelfe->elfLogFont.lfHeight = -20;
lpelfe->elfLogFont.lfWidth = 0;
// create a new font and store its handle
// as the data of the newly added item
HFONT hFont = CreateFontIndirect(&lpelfe->elfLogFont);
SNDMSG(hListBox, LB_SETITEMDATA, index,
reinterpret_cast<LPARAM>(hFont));
}
}
return TRUE;
}
//-------------------------------------------------------------------------
void AddScreenFonts()
{
// grab a handle to the screen's DC
HDC hScreenDC = GetDC(NULL);
try
{
//
// NOTE: Windows 95, 98 and Me requires that the lpLogfont
// (second) parameter of the EnumFontFamiliesEx function is
// non-NULL. This parameter can be NULL on Windows NT/2000.
//
LOGFONT lf = {0};
lf.lfCharSet = DEFAULT_CHARSET;
// enumerate the current screen fonts
EnumFontFamiliesEx(
hScreenDC, &lf,
reinterpret_cast<FONTENUMPROC>(MyEnumFontFamExProc),
0, 0
);
}
catch (...)
{
// release the screen's DC
ReleaseDC(NULL, hScreenDC);
}
// release the screen's DC
ReleaseDC(NULL, hScreenDC);
}
//-------------------------------------------------------------------------
LRESULT CALLBACK MainWndProc(HWND hWnd, UINT msg, WPARAM wParam,
LPARAM lParam)
{
switch (msg)
{
case WM_CREATE:
{
hListBox =
CreateWindowEx(
WS_EX_CLIENTEDGE, TEXT("LISTBOX"), TEXT(""),
WS_CHILD | WS_VISIBLE | LBS_STANDARD |
LBS_HASSTRINGS | LBS_OWNERDRAWFIXED,
20, 10, 250, 250,
hWnd, reinterpret_cast<HMENU>(ID_LISTBOX),
hInst, NULL
);
if (hListBox)
{
AddScreenFonts();
}
}
case WM_MEASUREITEM:
{
// grab a pointer to the MEASUREITEMSTRUCT structure
LPMEASUREITEMSTRUCT lpmis =
reinterpret_cast<LPMEASUREITEMSTRUCT>(lParam);
// test the identifier of the control that
// the message is meant for
if (lpmis->CtlID == ID_LISTBOX)
{
// adjust the height
lpmis->itemHeight = 25;
return TRUE;
}
break;
}
case WM_DRAWITEM:
{
// grab a pointer to the DRAWITEMSTRUCT structure
LPDRAWITEMSTRUCT lpdis =
reinterpret_cast<LPDRAWITEMSTRUCT>(lParam);
// test the identifier of the control that
// the message is meant for
if (lpdis->CtlID == ID_LISTBOX)
{
COLORREF OldColor = GetTextColor(lpdis->hDC);
int stock = WHITE_BRUSH;
// if the item is currently selected
if (lpdis->itemState & ODS_SELECTED)
{
// set the text color to white and
// the background color to black
COLORREF clrWhite = PALETTERGB(255, 255, 255);
OldColor = SetTextColor(lpdis->hDC, clrWhite);
stock = BLACK_BRUSH;
}
FillRect(
lpdis->hDC, &lpdis->rcItem,
static_cast<HBRUSH>(GetStockObject(stock))
);
if (lpdis->itemID != -1)
{
// extract the item's text
char text[MAX_PATH];
SNDMSG(hListBox, LB_GETTEXT, lpdis->itemID,
reinterpret_cast<LPARAM>(text));
// extract the corresponding font handle
DWORD value =
SNDMSG(hListBox, LB_GETITEMDATA, lpdis->itemID, 0);
HFONT hFont = reinterpret_cast<HFONT>(value);
// select the corresponding font
// into the device context
HFONT HOldFont = static_cast<HFONT>(
SelectObject(lpdis->hDC, hFont)
);
// render the text transparently
SetBkMode(lpdis->hDC, TRANSPARENT);
// render the text
RECT RText = lpdis->rcItem;
InflateRect(&RText, -2, -2);
DrawText(lpdis->hDC, text, strlen(text), &RText,
DT_LEFT | DT_VCENTER | DT_SINGLELINE);
// restore the previous font
SelectObject(lpdis->hDC, HOldFont);
}
// render the focus rectangle
if (lpdis->itemState & ODS_FOCUS)
{
DrawFocusRect(lpdis->hDC, &lpdis->rcItem);
}
// restore the previous color/mode
SetTextColor(lpdis->hDC, OldColor);
SetBkMode(lpdis->hDC, OPAQUE);
return TRUE;
}
break;
}
case WM_DESTROY:
{
// delete each created font object
int count = SNDMSG(hListBox, LB_GETCOUNT, 0, 0);
for (int index = 0; index < count; ++index)
{
DWORD value = SNDMSG(hListBox, LB_GETITEMDATA, index, 0);
DeleteObject(reinterpret_cast<HFONT>(value));
}
PostQuitMessage(0);
break;
}
}
return DefWindowProc(hWnd, msg, wParam, lParam);
}
//-------------------------------------------------------------------------

24
reactos/apps/tests/enumfonts/makefile Normal file
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PATH_TO_TOP = ../../..
TARGET_NORC = yes
TARGET_TYPE = program
TARGET_APPTYPE = windows
TARGET_NAME = enumfonts
TARGET_SDKLIBS = kernel32.a gdi32.a
TARGET_OBJECTS = $(TARGET_NAME).o
TARGET_GCCLIBS = stdc++
TARGET_CFLAGS = -Wall -Werror -D__USE_W32API -DWIN32 -D_WIN32_IE=0x0600 -D_WIN32_WINNT=0x0501 -fexceptions -Wall -I.
include $(PATH_TO_TOP)/rules.mak
include $(TOOLS_PATH)/helper.mk
# EOF