LRESULT CALLBACK WndProcAbout(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
const TCHAR * url;
POINT pt;
switch (message)
{
case WM_CREATE:
assert(!gHwndAbout);
break;
case WM_ERASEBKGND:
// do nothing, helps to avoid flicker
return TRUE;
case WM_PAINT:
OnPaintAbout(hwnd);
break;
case WM_SETCURSOR:
if (GetCursorPos(&pt) && ScreenToClient(hwnd, &pt)) {
if (AboutGetLink(NULL, pt.x, pt.y)) {
SetCursor(gCursorHand);
return TRUE;
}
}
return DefWindowProc(hwnd, message, wParam, lParam);
case WM_LBUTTONDOWN:
url = AboutGetLink(NULL, GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam));
SetWindowLong(hwnd, GWL_USERDATA, (LONG)url);
break;
case WM_LBUTTONUP:
url = AboutGetLink(NULL, GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam));
if (url && url == (const TCHAR *)GetWindowLong(hwnd, GWL_USERDATA))
LaunchBrowser(url);
SetWindowLong(hwnd, GWL_USERDATA, 0);
break;
case WM_CHAR:
if (VK_ESCAPE == wParam)
DestroyWindow(hwnd);
break;
case WM_DESTROY:
assert(gHwndAbout);
gHwndAbout = NULL;
break;
/* TODO: handle mouse move/down/up so that links work */
default:
return DefWindowProc(hwnd, message, wParam, lParam);
}
return 0;
}
LRESULT CALLBACK WndProcAbout(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
const WCHAR * url;
POINT pt;
switch (message)
{
case WM_CREATE:
assert(!gHwndAbout);
break;
case WM_ERASEBKGND:
// do nothing, helps to avoid flicker
return TRUE;
case WM_PAINT:
OnPaintAbout(hwnd);
break;
case WM_SETCURSOR:
if (GetCursorPosInHwnd(hwnd, pt)) {
StaticLinkInfo linkInfo;
if (GetStaticLink(gLinkInfo, pt.x, pt.y, &linkInfo)) {
CreateInfotipForLink(linkInfo);
SetCursor(gCursorHand);
return TRUE;
}
}
ClearInfotip();
return DefWindowProc(hwnd, message, wParam, lParam);
case WM_LBUTTONDOWN:
gClickedURL = GetStaticLink(gLinkInfo, GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam));
break;
case WM_LBUTTONUP:
url = GetStaticLink(gLinkInfo, GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam));
if (url && url == gClickedURL)
LaunchBrowser(url);
break;
case WM_CHAR:
if (VK_ESCAPE == wParam)
DestroyWindow(hwnd);
break;
case WM_DESTROY:
ClearInfotip();
assert(gHwndAbout);
gHwndAbout = NULL;
break;
default:
return DefWindowProc(hwnd, message, wParam, lParam);
}
return 0;
}
const TCHAR *AboutGetLink(WindowInfo *win, int x, int y, AboutLayoutInfoEl **el)
{
if (gRestrictedUse) return NULL;
// Update the link location information
if (win)
UpdateAboutLayoutInfo(win->hwndCanvas, win->hdcToDraw, NULL);
else
OnPaintAbout(gHwndAbout);
for (int i = 0; gAboutLayoutInfo[i].leftTxt; i++) {
if ((x < gAboutLayoutInfo[i].rightTxtPosX) ||
(x > gAboutLayoutInfo[i].rightTxtPosX + gAboutLayoutInfo[i].rightTxtDx))
continue;
if ((y < gAboutLayoutInfo[i].rightTxtPosY) ||
(y > gAboutLayoutInfo[i].rightTxtPosY + gAboutLayoutInfo[i].rightTxtDy))
continue;
if (el)
*el = &gAboutLayoutInfo[i];
return gAboutLayoutInfo[i].url;
}
return NULL;
}
