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#include "headers.h"
#define WNDCLASSNAME _T("W7DwmWndClass")
CDwmWindow::CDwmWindow()
{
GlobalInitWndClass();
m_btnInitialized = false;
m_btnCount = 0;
for (int i = 0; i < SIZEOF(m_btnInfo); ++i)
{
m_btnInfo[i].iId = i;
m_btnInfo[i].dwMask = THUMBBUTTONMASK(THB_FLAGS);
m_btnInfo[i].dwFlags = THUMBBUTTONFLAGS(THBF_HIDDEN);
m_btnData[i] = 0;
}
m_hwnd = CreateWindowEx(WS_EX_APPWINDOW|WS_EX_NOACTIVATE, WNDCLASSNAME, NULL, 0, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, HWND_DESKTOP, NULL, g_hInst, NULL);
SetWindowLongPtr(m_hwnd, GWLP_USERDATA, (LONG_PTR)this);
SetWindowPos(m_hwnd, 0, -100000, -100000, 0, 0, SWP_NOZORDER|SWP_NOACTIVATE|SWP_DEFERERASE|SWP_NOSENDCHANGING|SWP_SHOWWINDOW);
BOOL val = 1;
DwmSetWindowAttribute(m_hwnd, DWMWA_HAS_ICONIC_BITMAP, &val, 4);
DwmSetWindowAttribute(m_hwnd, DWMWA_FORCE_ICONIC_REPRESENTATION, &val, 4);
dwmInvalidateIconicBitmaps(m_hwnd);
}
HBITMAP CDwmWindow::CreateDwmBitmap(int width, int height)
{
BITMAPINFO bi;
bi.bmiHeader.biSize = sizeof(bi.bmiHeader);
bi.bmiHeader.biWidth = width;
bi.bmiHeader.biHeight = -height;
bi.bmiHeader.biPlanes = 1;
bi.bmiHeader.biBitCount = 32;
bi.bmiHeader.biCompression = BI_RGB;
return CreateDIBSection(0, &bi, DIB_RGB_COLORS, NULL, 0, 0);
}
void CDwmWindow::MakeBitmapOpaque(HBITMAP hBmp)
{
BITMAP bmp;
GetObject(hBmp, sizeof(bmp), &bmp);
if (bmp.bmBitsPixel != 32) return;
if (bmp.bmHeight < 0) bmp.bmHeight *= -1;
int size = bmp.bmWidth * bmp.bmHeight * 4;
BYTE *data = new BYTE[size];
GetBitmapBits(hBmp, size, data);
for (int i = 3; i < size; i += 4)
data[i] = 255;
SetBitmapBits(hBmp, size, data);
delete [] data;
}
void CDwmWindow::DrawGradient(HDC hdc, int x, int y, int width, int height, RGBQUAD *rgb0, RGBQUAD *rgb1)
{
int oldMode = SetBkMode(hdc, OPAQUE);
COLORREF oldColor = SetBkColor(hdc, 0);
RECT rc; SetRect(&rc, x, 0, x+width, 0);
for (int i=y+height; --i >= y; ) {
COLORREF color = RGB(
((height-i-1)*rgb0->rgbRed + i*rgb1->rgbRed) / height,
((height-i-1)*rgb0->rgbGreen + i*rgb1->rgbGreen) / height,
((height-i-1)*rgb0->rgbBlue + i*rgb1->rgbBlue) / height);
rc.top = rc.bottom = i;
++rc.bottom;
SetBkColor(hdc, color);
ExtTextOutA(hdc, 0, 0, ETO_OPAQUE, &rc, "", 0, 0);
}
SetBkMode(hdc, oldMode);
SetBkColor(hdc, oldColor);
}
bool CDwmWindow::AddButton(HICON hIcon, TCHAR *text, INT_PTR data, DWORD flags)
{
if (m_btnCount == SIZEOF(m_btnInfo)) return false;
m_btnInfo[m_btnCount].dwMask = THUMBBUTTONMASK(THB_ICON|THB_TOOLTIP|THB_FLAGS);
m_btnInfo[m_btnCount].hIcon = hIcon;
lstrcpyn(m_btnInfo[m_btnCount].szTip, text, SIZEOF(m_btnInfo[m_btnCount].szTip));
m_btnInfo[m_btnCount].dwFlags = THUMBBUTTONFLAGS(flags);
m_btnData[m_btnCount] = data;
m_btnCount++;
return true;
}
void CDwmWindow::UpdateButtons(ITaskbarList3 *p)
{
if (m_btnInitialized)
p->ThumbBarUpdateButtons(hwnd(), SIZEOF(m_btnInfo), m_btnInfo);
else
p->ThumbBarAddButtons(hwnd(), SIZEOF(m_btnInfo), m_btnInfo);
m_btnCount = 0; // reset this for next iteration
m_btnInitialized = true;
}
void CDwmWindow::SetTimer(int id, int timeout)
{
::SetTimer(m_hwnd, id, timeout, NULL);
}
void CDwmWindow::KillTimer(int id)
{
::KillTimer(m_hwnd, id);
}
void CDwmWindow::InvalidateThumbnail()
{
dwmInvalidateIconicBitmaps(m_hwnd);
}
void CDwmWindow::SetPreview(HBITMAP hbmp, int x, int y)
{
POINT pt = { x, y };
dwmSetIconicLivePreviewBitmap(m_hwnd, hbmp, &pt, 0);
}
void CDwmWindow::SetThumbnail(HBITMAP hbmp)
{
dwmSetIconicThumbnail(m_hwnd, hbmp, 0);
}
LRESULT CDwmWindow::WndProc(UINT msg, WPARAM wParam, LPARAM lParam)
{
switch (msg)
{
case WM_ACTIVATE:
{
if (LOWORD(wParam) == WA_ACTIVE || LOWORD(wParam) == WA_CLICKACTIVE)
{
OnActivate((HWND)wParam);
}
break;
}
case WM_CLOSE:
{
OnClose();
return FALSE;
}
case WM_DWMSENDICONICLIVEPREVIEWBITMAP:
{
OnRenderPreview();
break;
}
case WM_DWMSENDICONICTHUMBNAIL:
{
int width = HIWORD(lParam);
int height = LOWORD(lParam);
OnRenderThumbnail(width, height);
break;
}
case WM_TIMER:
{
OnTimer(wParam);
break;
}
case WM_COMMAND:
{
if (HIWORD(wParam) == THBN_CLICKED)
OnToolbar(LOWORD(wParam), m_btnData[LOWORD(wParam)]);
break;
}
}
return DefWindowProc(m_hwnd, msg, wParam, lParam);
}
void CDwmWindow::GlobalInitWndClass()
{
static bool bInitialized = false;
if (bInitialized) return;
WNDCLASSEX wcl = {0};
wcl.cbSize = sizeof(wcl);
wcl.lpfnWndProc = GlobalWndProc;
wcl.style = 0;
wcl.cbClsExtra = 0;
wcl.cbWndExtra = 0;
wcl.hInstance = g_hInst;
wcl.hIcon = NULL;
wcl.hCursor = LoadCursor(NULL, IDC_ARROW);
wcl.hbrBackground = (HBRUSH)GetStockObject(LTGRAY_BRUSH);
wcl.lpszMenuName = NULL;
wcl.lpszClassName = WNDCLASSNAME;
wcl.hIconSm = NULL;
RegisterClassEx(&wcl);
}
LRESULT CALLBACK CDwmWindow::GlobalWndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
CDwmWindow *wnd = (CDwmWindow *)GetWindowLongPtr(hwnd, GWLP_USERDATA);
if (!wnd) return DefWindowProc(hwnd, msg, wParam, lParam);
if (msg == WM_DESTROY)
{
delete wnd;
return DefWindowProc(hwnd, msg, wParam, lParam);
}
return wnd->WndProc(msg, wParam, lParam);
}
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