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// 30 may 2015
#include "uipriv_windows.hpp"
// TODO refine error handling
// from http://msdn.microsoft.com/en-us/library/windows/desktop/bb226818%28v=vs.85%29.aspx
#define tabMargin 7
static void tabPageMargins(struct tabPage *tp, int *mx, int *my)
{
uiWindowsSizing sizing;
*mx = 0;
*my = 0;
if (!tp->margined)
return;
uiWindowsGetSizing(tp->hwnd, &sizing);
*mx = tabMargin;
*my = tabMargin;
uiWindowsSizingDlgUnitsToPixels(&sizing, mx, my);
}
static void tabPageRelayout(struct tabPage *tp)
{
RECT r;
int mx, my;
HWND child;
if (tp->child == NULL)
return;
uiWindowsEnsureGetClientRect(tp->hwnd, &r);
tabPageMargins(tp, &mx, &my);
r.left += mx;
r.top += my;
r.right -= mx;
r.bottom -= my;
child = (HWND) uiControlHandle(tp->child);
uiWindowsEnsureMoveWindowDuringResize(child, r.left, r.top, r.right - r.left, r.bottom - r.top);
}
// dummy dialog procedure; see below for details
// let's handle parent messages here to avoid needing to subclass
// TODO do we need to handle DM_GETDEFID/DM_SETDEFID here too because of the ES_WANTRETURN stuff at http://blogs.msdn.com/b/oldnewthing/archive/2007/08/20/4470527.aspx? what about multiple default buttons (TODO)?
// TODO we definitely need to do something about edit message handling; it does a fake close of our parent on pressing escape, causing uiWindow to stop responding to maximizes but still respond to events and then die horribly on destruction
static INT_PTR CALLBACK dlgproc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
struct tabPage *tp;
LRESULT lResult;
if (uMsg == WM_INITDIALOG) {
tp = (struct tabPage *) lParam;
tp->hwnd = hwnd;
SetWindowLongPtrW(hwnd, DWLP_USER, (LONG_PTR) tp);
return TRUE;
}
if (handleParentMessages(hwnd, uMsg, wParam, lParam, &lResult) != FALSE) {
SetWindowLongPtrW(hwnd, DWLP_MSGRESULT, (LONG_PTR) lResult);
return TRUE;
}
if (uMsg == WM_WINDOWPOSCHANGED) {
tp = (struct tabPage *) GetWindowLongPtrW(hwnd, DWLP_USER);
tabPageRelayout(tp);
// pretend the dialog hasn't handled this just in case it needs to do something special
return FALSE;
}
// unthemed dialogs don't respond to WM_PRINTCLIENT
// fortunately they don't have any special painting
if (uMsg == WM_PRINTCLIENT) {
// don't worry about the return value; hopefully DefWindowProcW() caught it (if not the dialog procedure itself)
// we COULD paint the dialog background brush ourselves but meh, it works
SendMessageW(hwnd, WM_ERASEBKGND, wParam, lParam);
// and pretend we did nothing just so the themed dialog can still paint its content
// TODO see if w ecan avoid erasing the background in this case in the first place, or if we even need to
return FALSE;
}
return FALSE;
}
struct tabPage *newTabPage(uiControl *child)
{
struct tabPage *tp;
HRESULT hr;
tp = uiNew(struct tabPage);
// unfortunately this needs to be a proper dialog for EnableThemeDialogTexture() to work; CreateWindowExW() won't suffice
if (CreateDialogParamW(hInstance, MAKEINTRESOURCE(rcTabPageDialog),
utilWindow, dlgproc, (LPARAM) tp) == NULL)
logLastError(L"error creating tab page");
tp->child = child;
if (tp->child != NULL) {
uiWindowsEnsureSetParentHWND((HWND) uiControlHandle(tp->child), tp->hwnd);
uiWindowsControlAssignSoleControlIDZOrder(uiWindowsControl(tp->child));
}
hr = EnableThemeDialogTexture(tp->hwnd, ETDT_ENABLE | ETDT_USETABTEXTURE | ETDT_ENABLETAB);
if (hr != S_OK)
logHRESULT(L"error setting tab page background", hr);
// continue anyway; it'll look wrong but eh
// and start the tab page hidden
ShowWindow(tp->hwnd, SW_HIDE);
return tp;
}
void tabPageDestroy(struct tabPage *tp)
{
// don't destroy the child with the page
if (tp->child != NULL)
uiWindowsControlSetParentHWND(uiWindowsControl(tp->child), NULL);
// don't call EndDialog(); that's for the DialogBox() family of functions instead of CreateDialog()
uiWindowsEnsureDestroyWindow(tp->hwnd);
uiFree(tp);
}
void tabPageMinimumSize(struct tabPage *tp, int *width, int *height)
{
int mx, my;
*width = 0;
*height = 0;
if (tp->child != NULL)
uiWindowsControlMinimumSize(uiWindowsControl(tp->child), width, height);
tabPageMargins(tp, &mx, &my);
*width += 2 * mx;
*height += 2 * my;
}
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