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reactos/dll/cpl/desk/preview.c

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/*
* PROJECT: ReactOS Desktop Control Panel
* LICENSE: GPL - See COPYING in the top level directory
* FILE: dll/cpl/desk/preview.c
* PURPOSE: Draws the preview control
* COPYRIGHT: Copyright 2006, 2007 Eric Kohl
*/
#include "desk.h"
static const TCHAR szPreviewWndClass[] = TEXT("PreviewWndClass");
typedef struct _PREVIEW_DATA
{
HDC hdcPreview;
HWND hwndParent;
COLOR_SCHEME Scheme;
HBRUSH hbrScrollbar;
HBRUSH hbrDesktop;
HBRUSH hbrWindow;
INT cxEdge;
INT cyEdge;
INT cySizeFrame;
INT cyCaption;
INT cyBorder;
INT cyMenu;
INT cxScrollbar;
RECT rcDesktop;
RECT rcInactiveFrame;
RECT rcInactiveCaption;
RECT rcInactiveCaptionButtons;
RECT rcActiveFrame;
RECT rcActiveCaption;
RECT rcActiveCaptionButtons;
RECT rcActiveMenuBar;
RECT rcSelectedMenuItem;
RECT rcActiveClient;
RECT rcActiveScroll;
RECT rcDialogFrame;
RECT rcDialogCaption;
RECT rcDialogCaptionButtons;
RECT rcDialogClient;
RECT rcDialogButton;
LPTSTR lpInAct;
LPTSTR lpAct;
LPTSTR lpWinTxt;
LPTSTR lpMessBox;
LPTSTR lpMessText;
LPTSTR lpButText;
HFONT hCaptionFont;
HFONT hMenuFont;
HFONT hMessageFont;
HFONT hClientFont;
HMENU hMenu;
} PREVIEW_DATA, *PPREVIEW_DATA;
static VOID UpdatePreviewTheme(HWND hwnd, PPREVIEW_DATA pPreviewData, COLOR_SCHEME *scheme)
{
if (pPreviewData->hbrScrollbar != NULL)
DeleteObject(pPreviewData->hbrScrollbar);
pPreviewData->hbrScrollbar = CreateSolidBrush(scheme->crColor[COLOR_SCROLLBAR]);
if (pPreviewData->hbrDesktop != NULL)
DeleteObject(pPreviewData->hbrDesktop);
pPreviewData->hbrDesktop = CreateSolidBrush(scheme->crColor[COLOR_DESKTOP]);
if (pPreviewData->hbrWindow != NULL)
DeleteObject(pPreviewData->hbrWindow);
pPreviewData->hbrWindow = CreateSolidBrush(scheme->crColor[COLOR_WINDOW]);
pPreviewData->cxEdge = 2; /* SM_CXEDGE */
pPreviewData->cyEdge = 2; /* SM_CYEDGE */
pPreviewData->cySizeFrame = scheme->ncMetrics.iBorderWidth; /* SM_CYSIZEFRAME */
pPreviewData->cyCaption = scheme->ncMetrics.iCaptionHeight+1; /* SM_CYCAPTION */
pPreviewData->cyMenu = scheme->ncMetrics.iMenuHeight -1; /* SM_CYMENU */
pPreviewData->cxScrollbar = scheme->ncMetrics.iScrollWidth; /* SM_CXVSCROLL */
pPreviewData->cyBorder = scheme->ncMetrics.iBorderWidth; /* SM_CYBORDER */
if (pPreviewData->hCaptionFont != NULL)
DeleteObject(pPreviewData->hCaptionFont);
pPreviewData->hCaptionFont = CreateFontIndirect(&scheme->ncMetrics.lfCaptionFont);
if (pPreviewData->hMenuFont != NULL)
DeleteObject(pPreviewData->hMenuFont);
pPreviewData->hMenuFont = CreateFontIndirect(&scheme->ncMetrics.lfMenuFont);
if (pPreviewData->hMessageFont != NULL)
DeleteObject(pPreviewData->hMessageFont);
pPreviewData->hMessageFont = CreateFontIndirect(&scheme->ncMetrics.lfMessageFont);
pPreviewData->Scheme = *scheme;
InvalidateRect(hwnd, NULL, FALSE);
}
static VOID
OnCreate(HWND hwnd, PPREVIEW_DATA pPreviewData)
{
COLOR_SCHEME *scheme;
pPreviewData->hClientFont = (HFONT)GetStockObject(DEFAULT_GUI_FONT);
/* Load and modify the menu */
pPreviewData->hMenu = LoadMenu(hApplet, MAKEINTRESOURCE(IDR_PREVIEW_MENU));
EnableMenuItem(pPreviewData->hMenu,
1, MF_BYPOSITION | MF_GRAYED);
HiliteMenuItem(hwnd, pPreviewData->hMenu,
2, MF_BYPOSITION | MF_HILITE);
// GetMenuItemRect(hwnd, pPreviewData->hMenu,
// 2, &pPreviewData->rcSelectedMenuItem);
AllocAndLoadString(&pPreviewData->lpInAct, hApplet, IDS_INACTWIN);
AllocAndLoadString(&pPreviewData->lpAct, hApplet, IDS_ACTWIN);
AllocAndLoadString(&pPreviewData->lpWinTxt, hApplet, IDS_WINTEXT);
AllocAndLoadString(&pPreviewData->lpMessBox, hApplet, IDS_MESSBOX);
AllocAndLoadString(&pPreviewData->lpMessText, hApplet, IDS_MESSTEXT);
AllocAndLoadString(&pPreviewData->lpButText, hApplet, IDS_BUTTEXT);
scheme = &pPreviewData->Scheme;
LoadCurrentScheme(scheme);
UpdatePreviewTheme(hwnd, pPreviewData, scheme);
}
static VOID
CalculateItemSize(PPREVIEW_DATA pPreviewData)
{
int width, height;
/* Calculate the inactive window rectangle */
pPreviewData->rcInactiveFrame.left = pPreviewData->rcDesktop.left + 8;
pPreviewData->rcInactiveFrame.top = pPreviewData->rcDesktop.top + 8;
pPreviewData->rcInactiveFrame.right = pPreviewData->rcDesktop.right - 25;
pPreviewData->rcInactiveFrame.bottom = pPreviewData->rcDesktop.bottom - 30;
/* Calculate the inactive caption rectangle */
pPreviewData->rcInactiveCaption.left = pPreviewData->rcInactiveFrame.left + pPreviewData->cxEdge + pPreviewData->cySizeFrame + 1;
pPreviewData->rcInactiveCaption.top = pPreviewData->rcInactiveFrame.top + pPreviewData->cyEdge + pPreviewData->cySizeFrame + 1;
pPreviewData->rcInactiveCaption.right = pPreviewData->rcInactiveFrame.right - pPreviewData->cxEdge - pPreviewData->cySizeFrame - 1;
pPreviewData->rcInactiveCaption.bottom = pPreviewData->rcInactiveCaption.top + pPreviewData->cyCaption - pPreviewData->cyBorder;
/* Calculate the inactive caption buttons rectangle */
pPreviewData->rcInactiveCaptionButtons.left = pPreviewData->rcInactiveCaption.right - 2 - 2 - 3 * 16;
pPreviewData->rcInactiveCaptionButtons.top = pPreviewData->rcInactiveCaption.top + 2;
pPreviewData->rcInactiveCaptionButtons.right = pPreviewData->rcInactiveCaption.right - 2;
pPreviewData->rcInactiveCaptionButtons.bottom = pPreviewData->rcInactiveCaption.bottom - 2;
/* Calculate the active window rectangle */
pPreviewData->rcActiveFrame.left = pPreviewData->rcInactiveFrame.left + 3 + pPreviewData->cySizeFrame;
pPreviewData->rcActiveFrame.top = pPreviewData->rcInactiveCaption.bottom + 1;
pPreviewData->rcActiveFrame.right = pPreviewData->rcDesktop.right - 10;
pPreviewData->rcActiveFrame.bottom = pPreviewData->rcDesktop.bottom - 25;
/* Calculate the active caption rectangle */
pPreviewData->rcActiveCaption.left = pPreviewData->rcActiveFrame.left + pPreviewData->cxEdge + pPreviewData->cySizeFrame + 1;
pPreviewData->rcActiveCaption.top = pPreviewData->rcActiveFrame.top + pPreviewData->cxEdge + pPreviewData->cySizeFrame + 1;
pPreviewData->rcActiveCaption.right = pPreviewData->rcActiveFrame.right - pPreviewData->cxEdge - pPreviewData->cySizeFrame - 1;
pPreviewData->rcActiveCaption.bottom = pPreviewData->rcActiveCaption.top + pPreviewData->cyCaption - pPreviewData->cyBorder;
/* Calculate the active caption buttons rectangle */
pPreviewData->rcActiveCaptionButtons.left = pPreviewData->rcActiveCaption.right - 2 - 2 - 3 * 16;
pPreviewData->rcActiveCaptionButtons.top = pPreviewData->rcActiveCaption.top + 2;
pPreviewData->rcActiveCaptionButtons.right = pPreviewData->rcActiveCaption.right - 2;
pPreviewData->rcActiveCaptionButtons.bottom = pPreviewData->rcActiveCaption.bottom - 2;
/* Calculate the active menu bar rectangle */
pPreviewData->rcActiveMenuBar.left = pPreviewData->rcActiveFrame.left + pPreviewData->cxEdge + pPreviewData->cySizeFrame + 1;
pPreviewData->rcActiveMenuBar.top = pPreviewData->rcActiveCaption.bottom + 1;
pPreviewData->rcActiveMenuBar.right = pPreviewData->rcActiveFrame.right - pPreviewData->cxEdge - pPreviewData->cySizeFrame - 1;
pPreviewData->rcActiveMenuBar.bottom = pPreviewData->rcActiveMenuBar.top + pPreviewData->cyMenu + 1;
/* Calculate the active client rectangle */
pPreviewData->rcActiveClient.left = pPreviewData->rcActiveFrame.left + pPreviewData->cxEdge + pPreviewData->cySizeFrame + 1;
pPreviewData->rcActiveClient.top = pPreviewData->rcActiveMenuBar.bottom;
pPreviewData->rcActiveClient.right = pPreviewData->rcActiveFrame.right - pPreviewData->cxEdge - pPreviewData->cySizeFrame - 1;
pPreviewData->rcActiveClient.bottom = pPreviewData->rcActiveFrame.bottom - pPreviewData->cyEdge - pPreviewData->cySizeFrame - 1;
/* Calculate the active scroll rectangle */
pPreviewData->rcActiveScroll.left = pPreviewData->rcActiveClient.right - 2 - pPreviewData->cxScrollbar;
pPreviewData->rcActiveScroll.top = pPreviewData->rcActiveClient.top + 2;
pPreviewData->rcActiveScroll.right = pPreviewData->rcActiveClient.right - 2;
pPreviewData->rcActiveScroll.bottom = pPreviewData->rcActiveClient.bottom - 2;
/* Dialog window */
pPreviewData->rcDialogFrame.left = pPreviewData->rcActiveClient.left + 4;
pPreviewData->rcDialogFrame.top = (pPreviewData->rcDesktop.bottom * 60) / 100;
pPreviewData->rcDialogFrame.right = (pPreviewData->rcDesktop.right * 65) / 100;
pPreviewData->rcDialogFrame.bottom = pPreviewData->rcDesktop.bottom - 5;
/* Calculate the dialog caption rectangle */
pPreviewData->rcDialogCaption.left = pPreviewData->rcDialogFrame.left + 3;
pPreviewData->rcDialogCaption.top = pPreviewData->rcDialogFrame.top + 3;
pPreviewData->rcDialogCaption.right = pPreviewData->rcDialogFrame.right - 3;
pPreviewData->rcDialogCaption.bottom = pPreviewData->rcDialogFrame.top + pPreviewData->cyCaption + 1 + 1;
/* Calculate the inactive caption buttons rectangle */
pPreviewData->rcDialogCaptionButtons.left = pPreviewData->rcDialogCaption.right - 2 - 16;
pPreviewData->rcDialogCaptionButtons.top = pPreviewData->rcDialogCaption.top + 2;
pPreviewData->rcDialogCaptionButtons.right = pPreviewData->rcDialogCaption.right - 2;
pPreviewData->rcDialogCaptionButtons.bottom = pPreviewData->rcDialogCaption.bottom - 2;
/* Calculate the dialog client rectangle */
pPreviewData->rcDialogClient.left = pPreviewData->rcDialogFrame.left + 3;
pPreviewData->rcDialogClient.top = pPreviewData->rcDialogCaption.bottom + 1;
pPreviewData->rcDialogClient.right = pPreviewData->rcDialogFrame.right - 3;
pPreviewData->rcDialogClient.bottom = pPreviewData->rcDialogFrame.bottom - 3;
/* Calculate the dialog button rectangle */
width = 80;
height = 28;
pPreviewData->rcDialogButton.left =
(pPreviewData->rcDialogClient.right + pPreviewData->rcDialogClient.left - width) / 2;
pPreviewData->rcDialogButton.right = pPreviewData->rcDialogButton.left + width;
pPreviewData->rcDialogButton.bottom = pPreviewData->rcDialogClient.bottom - 2;
pPreviewData->rcDialogButton.top = pPreviewData->rcDialogButton.bottom - height;
}
static VOID
OnSize(INT cx, INT cy, PPREVIEW_DATA pPreviewData)
{
/* Get Desktop rectangle */
pPreviewData->rcDesktop.left = 0;
pPreviewData->rcDesktop.top = 0;
pPreviewData->rcDesktop.right = cx;
pPreviewData->rcDesktop.bottom = cy;
CalculateItemSize(pPreviewData);
}
static VOID
OnPaint(HWND hwnd, PPREVIEW_DATA pPreviewData)
{
PAINTSTRUCT ps;
HFONT hOldFont;
HDC hdc;
RECT rc;
COLOR_SCHEME *scheme;
scheme = &pPreviewData->Scheme;
hdc = BeginPaint(hwnd, &ps);
if (pPreviewData->hdcPreview)
{
BitBlt(hdc,0,0, pPreviewData->rcDesktop.right, pPreviewData->rcDesktop.bottom, pPreviewData->hdcPreview, 0,0, SRCCOPY);
EndPaint(hwnd, &ps);
return;
}
/* Desktop */
FillRect(hdc, &pPreviewData->rcDesktop, pPreviewData->hbrDesktop);
/* Inactive Window */
MyDrawEdge(hdc, &pPreviewData->rcInactiveFrame, EDGE_RAISED, BF_RECT | BF_MIDDLE | MY_BF_INACTIVEBORDER, scheme);
SetTextColor(hdc, scheme->crColor[COLOR_INACTIVECAPTIONTEXT]);
MyDrawCaptionTemp(NULL, hdc, &pPreviewData->rcInactiveCaption, pPreviewData->hCaptionFont,
NULL, pPreviewData->lpInAct, DC_GRADIENT | DC_ICON | DC_TEXT, scheme);
MyDrawCaptionButtons(hdc, &pPreviewData->rcInactiveCaption, TRUE, pPreviewData->cyCaption - 2, scheme);
/* Active Window */
MyDrawEdge(hdc, &pPreviewData->rcActiveFrame, EDGE_RAISED, BF_RECT | BF_MIDDLE | MY_BF_ACTIVEBORDER, scheme);
SetTextColor(hdc, scheme->crColor[COLOR_CAPTIONTEXT]);
MyDrawCaptionTemp(NULL, hdc, &pPreviewData->rcActiveCaption, pPreviewData->hCaptionFont,
NULL, pPreviewData->lpAct, DC_ACTIVE | DC_GRADIENT | DC_ICON | DC_TEXT, scheme);
MyDrawCaptionButtons(hdc, &pPreviewData->rcActiveCaption, TRUE, pPreviewData->cyCaption - 2, scheme);
/* Draw the menu bar */
MyDrawMenuBarTemp(hwnd, hdc, &pPreviewData->rcActiveMenuBar,
pPreviewData->hMenu,
pPreviewData->hMenuFont, scheme);
/* Draw the client area */
CopyRect(&rc, &pPreviewData->rcActiveClient);
MyDrawEdge(hdc, &rc, EDGE_SUNKEN, BF_RECT | BF_ADJUST, scheme);
FillRect(hdc, &rc, pPreviewData->hbrWindow);
/* Draw the client text */
CopyRect(&rc, &pPreviewData->rcActiveClient);
rc.left += 4;
rc.top += 2;
SetTextColor(hdc, scheme->crColor[COLOR_WINDOWTEXT]);
hOldFont = SelectObject(hdc, pPreviewData->hClientFont);
DrawText(hdc, pPreviewData->lpWinTxt, -1, &rc, DT_LEFT);
SelectObject(hdc, hOldFont);
/* Draw the scroll bar */
MyDrawScrollbar(hdc, &pPreviewData->rcActiveScroll, pPreviewData->hbrScrollbar, scheme);
/* Dialog Window */
MyDrawEdge(hdc, &pPreviewData->rcDialogFrame, EDGE_RAISED, BF_RECT | BF_MIDDLE, scheme);
SetTextColor(hdc, scheme->crColor[COLOR_WINDOW]);
MyDrawCaptionTemp(NULL, hdc, &pPreviewData->rcDialogCaption, pPreviewData->hCaptionFont,
NULL, pPreviewData->lpMessBox, DC_ACTIVE | DC_GRADIENT | DC_ICON | DC_TEXT, scheme);
MyDrawCaptionButtons(hdc, &pPreviewData->rcDialogCaption, FALSE, pPreviewData->cyCaption - 2, scheme);
/* Draw the dialog text */
CopyRect(&rc, &pPreviewData->rcDialogClient);
rc.left += 4;
rc.top += 2;
SetTextColor(hdc, scheme->crColor[COLOR_WINDOWTEXT]);
hOldFont = SelectObject(hdc, pPreviewData->hMessageFont);
DrawText(hdc, pPreviewData->lpMessText, -1, &rc, DT_LEFT);
SelectObject(hdc, hOldFont);
/* Draw Button */
MyDrawFrameControl(hdc, &pPreviewData->rcDialogButton, DFC_BUTTON, DFCS_BUTTONPUSH, scheme);
CopyRect(&rc, &pPreviewData->rcDialogButton);
SetTextColor(hdc, scheme->crColor[COLOR_BTNTEXT]);
hOldFont = SelectObject(hdc, pPreviewData->hMessageFont);
DrawText(hdc, pPreviewData->lpButText, -1, &rc, DT_VCENTER | DT_CENTER | DT_SINGLELINE);
SelectObject(hdc, hOldFont);
EndPaint(hwnd, &ps);
}
static VOID
OnLButtonDown(HWND hwnd, int xPos, int yPos, PPREVIEW_DATA pPreviewData)
{
UINT type = IDX_DESKTOP;
POINT pt;
pt.x = xPos;
pt.y = yPos;
if (PtInRect(&pPreviewData->rcInactiveFrame, pt))
type = IDX_INACTIVE_BORDER;
if (PtInRect(&pPreviewData->rcInactiveCaption, pt))
type = IDX_INACTIVE_CAPTION;
if (PtInRect(&pPreviewData->rcInactiveCaptionButtons, pt))
type = IDX_CAPTION_BUTTON;
if (PtInRect(&pPreviewData->rcActiveFrame, pt))
type = IDX_ACTIVE_BORDER;
if (PtInRect(&pPreviewData->rcActiveCaption, pt))
type = IDX_ACTIVE_CAPTION;
if (PtInRect(&pPreviewData->rcActiveCaptionButtons, pt))
type = IDX_CAPTION_BUTTON;
// if (PtInRect(&pPreviewData->rcSelectedMenuItem, pt))
// type = IDX_SELECTION;
if (PtInRect(&pPreviewData->rcActiveMenuBar, pt))
type = IDX_MENU;
if (PtInRect(&pPreviewData->rcActiveClient, pt))
type = IDX_WINDOW;
if (PtInRect(&pPreviewData->rcActiveScroll, pt))
type = IDX_SCROLLBAR;
if (PtInRect(&pPreviewData->rcDialogFrame, pt))
type = IDX_DIALOG;
if (PtInRect(&pPreviewData->rcDialogCaption, pt))
type = IDX_ACTIVE_CAPTION;
if (PtInRect(&pPreviewData->rcDialogCaptionButtons, pt))
type = IDX_CAPTION_BUTTON;
if (PtInRect(&pPreviewData->rcDialogButton, pt))
type = IDX_3D_OBJECTS;
SendMessage(GetParent(hwnd),
WM_COMMAND,
MAKEWPARAM(GetWindowLongPtrW(hwnd, GWLP_ID), 0),
(LPARAM)type);
}
static VOID
OnDestroy(PPREVIEW_DATA pPreviewData)
{
DeleteObject(pPreviewData->hbrScrollbar);
DeleteObject(pPreviewData->hbrDesktop);
DeleteObject(pPreviewData->hbrWindow);
DeleteObject(pPreviewData->hCaptionFont);
DeleteObject(pPreviewData->hMenuFont);
DeleteObject(pPreviewData->hMessageFont);
DestroyMenu(pPreviewData->hMenu);
LocalFree((HLOCAL)pPreviewData->lpInAct);
LocalFree((HLOCAL)pPreviewData->lpAct);
LocalFree((HLOCAL)pPreviewData->lpWinTxt);
LocalFree((HLOCAL)pPreviewData->lpMessBox);
LocalFree((HLOCAL)pPreviewData->lpMessText);
LocalFree((HLOCAL)pPreviewData->lpButText);
}
static LRESULT CALLBACK
PreviewWndProc(HWND hwnd,
UINT uMsg,
WPARAM wParam,
LPARAM lParam)
{
PPREVIEW_DATA pPreviewData;
pPreviewData = (PPREVIEW_DATA)GetWindowLongPtr(hwnd, GWLP_USERDATA);
switch (uMsg)
{
case WM_CREATE:
pPreviewData = (PPREVIEW_DATA)HeapAlloc(GetProcessHeap(),
HEAP_ZERO_MEMORY,
sizeof(PREVIEW_DATA));
if (!pPreviewData)
return -1;
SetWindowLongPtr(hwnd, GWLP_USERDATA, (LONG_PTR)pPreviewData);
OnCreate(hwnd, pPreviewData);
break;
case WM_SIZE:
OnSize(LOWORD(lParam), HIWORD(lParam), pPreviewData);
break;
case WM_PAINT:
OnPaint(hwnd, pPreviewData);
break;
case WM_LBUTTONDOWN:
OnLButtonDown(hwnd, LOWORD(lParam), HIWORD(lParam), pPreviewData);
break;
case WM_DESTROY:
OnDestroy(pPreviewData);
HeapFree(GetProcessHeap(), 0, pPreviewData);
break;
case PVM_UPDATETHEME:
UpdatePreviewTheme(hwnd, pPreviewData, (COLOR_SCHEME *)lParam);
CalculateItemSize(pPreviewData);
InvalidateRect(hwnd, NULL, FALSE);
break;
case PVM_SETSIZE:
SchemeSetMetric(&pPreviewData->Scheme, wParam, lParam);
pPreviewData->cySizeFrame = pPreviewData->Scheme.ncMetrics.iBorderWidth; /* SM_CYSIZEFRAME */
pPreviewData->cyCaption = pPreviewData->Scheme.ncMetrics.iCaptionHeight+1; /* SM_CYCAPTION */
pPreviewData->cyMenu = pPreviewData->Scheme.ncMetrics.iMenuHeight -1; /* SM_CYMENU */
pPreviewData->cxScrollbar = pPreviewData->Scheme.ncMetrics.iScrollWidth; /* SM_CXVSCROLL */
pPreviewData->cyBorder = pPreviewData->Scheme.ncMetrics.iBorderWidth; /* SM_CYBORDER */
CalculateItemSize(pPreviewData);
InvalidateRect(hwnd, NULL, FALSE);
break;
case PVM_SETFONT:
{
PLOGFONTW plfFont;
HFONT* phFont;
switch(wParam)
{
case FONT_CAPTION: phFont = &pPreviewData->hCaptionFont; break;
case FONT_MENU: phFont = &pPreviewData->hMenuFont; break;
case FONT_MESSAGE: phFont = &pPreviewData->hMessageFont; break;
default: return TRUE;
}
plfFont = SchemeGetFont(&pPreviewData->Scheme, wParam);
memcpy(plfFont, (PVOID)lParam, sizeof(LOGFONTW));
DeleteObject(*phFont);
*phFont = CreateFontIndirect(plfFont);
InvalidateRect(hwnd, NULL, FALSE);
break;
}
case PVM_SETCOLOR:
pPreviewData->Scheme.crColor[wParam] = lParam;
switch(wParam)
{
case COLOR_SCROLLBAR:
DeleteObject(pPreviewData->hbrScrollbar);
pPreviewData->hbrScrollbar = CreateSolidBrush(pPreviewData->Scheme.crColor[wParam]);
break;
case COLOR_DESKTOP:
DeleteObject(pPreviewData->hbrDesktop);
pPreviewData->hbrDesktop = CreateSolidBrush(pPreviewData->Scheme.crColor[wParam]);
break;
case COLOR_WINDOW:
DeleteObject(pPreviewData->hbrWindow);
pPreviewData->hbrWindow = CreateSolidBrush(pPreviewData->Scheme.crColor[wParam]);
break;
}
CalculateItemSize(pPreviewData);
InvalidateRect(hwnd, NULL, FALSE);
break;
case PVM_GETSIZE:
return SchemeGetMetric(&pPreviewData->Scheme, wParam);
case PVM_GETFONT:
return (LRESULT)SchemeGetFont(&pPreviewData->Scheme, wParam);
case PVM_GETCOLOR:
return pPreviewData->Scheme.crColor[wParam];
case PVM_SET_HDC_PREVIEW:
pPreviewData->hdcPreview = (HDC)lParam;
InvalidateRect(hwnd, NULL, FALSE);
break;
default:
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}
return FALSE;
}
BOOL
RegisterPreviewControl(IN HINSTANCE hInstance)
{
WNDCLASSEX wc = {0};
wc.cbSize = sizeof(wc);
wc.lpfnWndProc = PreviewWndProc;
wc.hInstance = hInstance;
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = (HBRUSH)NULL;
wc.lpszClassName = szPreviewWndClass;
return RegisterClassEx(&wc) != (ATOM)0;
}
VOID
UnregisterPreviewControl(IN HINSTANCE hInstance)
{
UnregisterClass(szPreviewWndClass, hInstance);
}
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