void
resize()
{
// No point in doing this before we have the client size (ie at first construction):
if (m_client[1] > 0) {
uint sd = 1;
FgVect2I pos(0),
sz = m_client;
pos[sd] = -m_si.nPos;
for (size_t ii=0; ii<m_panes.size(); ++ii) {
sz[sd] = m_panes[ii]->getMinSize()[sd];
if ((pos[sd] > m_client[sd]) || (pos[sd]+sz[sd] < 0))
m_panes[ii]->showWindow(false);
else {
m_panes[ii]->moveWindow(pos,sz);
m_panes[ii]->showWindow(true);
}
pos[sd] += sz[sd];
}
// Note that Windows wants the total range of the scrollable area,
// not the effective slider range resulting from subtracting the
// currently displayed range:
m_si.fMask = SIF_DISABLENOSCROLL | SIF_PAGE | SIF_POS | SIF_RANGE;
m_si.nMax = sumDims()[sd];
m_si.nPage = m_client[sd];
// Windows will clamp the position and otherwise adjust:
SetScrollInfo(hwndThis,SB_VERT,&m_si,TRUE);
m_si.fMask = SIF_ALL;
GetScrollInfo(hwndThis,SB_VERT,&m_si);
}
}
virtual void
saveState()
{
fgSaveXml(m_store+".xml",m_currPane,false);
for (size_t ii=0; ii<m_panes.size(); ++ii)
m_panes[ii]->saveState();
}
virtual FgVect2B
wantStretch() const
{
for (size_t ii=0; ii<m_panes.size(); ++ii)
if (m_panes[ii]->wantStretch()[0])
return FgVect2B(true,true);
return FgVect2B(false,true);
}
FgVect2UI
sumDims() const
{
FgVect2UI sum(0);
for (size_t ii=0; ii<m_panes.size(); ++ii)
sum += m_panes[ii]->getMinSize();
return sum;
}
virtual FgVect2UI
getMinSize() const
{
FgVect2UI max(0);
for (size_t ii=0; ii<m_panes.size(); ++ii) {
const FgGuiTab & tab = m_api.tabs[ii];
FgVect2UI pad(tab.padLeft+tab.padRight,tab.padTop+tab.padBottom);
max = fgMax(max,m_panes[ii]->getMinSize()+pad);
}
return max + FgVect2UI(0,37);
}
virtual void
updateIfChanged()
{
//fgout << fgnl << "SplitScroll::updateIfChanged";
if (g_gg.dg.update(m_api.updateFlagIdx)) {
//fgout << " ... updating" << fgpush;
// call DestroyWindow in all created sub-windows:
for (size_t ii=0; ii<m_panes.size(); ++ii)
m_panes[ii]->destroy();
FgGuiPtrs panes = m_api.getPanes();
m_panes.resize(panes.size());
for (size_t ii=0; ii<m_panes.size(); ++ii) {
m_panes[ii] = panes[ii]->getInstance();
m_panes[ii]->create(hwndThis,int(ii),m_store+"_"+fgToString(ii),0UL,true);
}
//fgout << fgpop;
}
for (size_t ii=0; ii<m_panes.size(); ++ii)
m_panes[ii]->updateIfChanged();
}
virtual void
create(HWND parentHwnd,int ident,const FgString & store,DWORD extStyle,bool visible)
{
//fgout << fgnl << "Tabs::create visible: " << visible << " extStyle: " << extStyle << fgpush;
m_store = store;
uint cp;
if (fgLoadXml(m_store+".xml",cp,false))
if (cp < m_panes.size())
m_currPane = cp;
FgCreateChild cc;
cc.extStyle = extStyle;
cc.visible = visible;
fgCreateChild(parentHwnd,ident,this,cc);
//fgout << fgpop;
}
LRESULT
wndProc(HWND hwnd,UINT msg,WPARAM wParam,LPARAM lParam)
{
if (msg == WM_CREATE) {
//fgout << fgnl << "Tabs::WM_CREATE" << fgpush;
hwndThis = hwnd;
// Creating the panes before the tabs fixes the problem of trackbars not being visible
// on first paint (almost ... top/bottom arrows don't appear). No idea why.
for (size_t ii=0; ii<m_panes.size(); ++ii) {
// Set visibility here to avoid sending 'ShowWindow' messages, which also
// send WM_SIZE. The sizing will all be done after creation when ShowWindow
// is called from the client level.
m_panes[ii]->create(hwnd,
int(ii+1), // Child identifiers start at 1 since 0 taken above. Not used anyway.
m_store+"_"+fgToString(ii),
NULL,
ii==m_currPane);
}
m_tabHwnd =
CreateWindowEx(0,
WC_TABCONTROL,
L"",
WS_CHILD | WS_VISIBLE,
0,0,0,0,
hwnd,
0, // Identifier 0
s_fgGuiWin.hinst,
NULL);
TCITEM tc = {0};
tc.mask = TCIF_TEXT;
for (size_t ii=0; ii<m_panes.size(); ++ii) {
wstring wstr = m_api.tabs[ii].label.as_wstring();
wstr += wchar_t(0);
tc.pszText = &wstr[0];
TabCtrl_InsertItem(m_tabHwnd,ii,&tc);
}
SendMessage(m_tabHwnd,TCM_SETCURSEL,m_currPane,0);
if (m_api.tabs[m_currPane].onSelect != NULL)
m_api.tabs[m_currPane].onSelect();
//fgout << fgpop;
return 0;
}
else if (msg == WM_SIZE) {
m_client = FgVect2I(LOWORD(lParam),HIWORD(lParam));
if (m_client[0] * m_client[1] > 0) {
//fgout << fgnl << "Tabs::WM_SIZE: " << m_api.tabs[0].label << " : " << m_client << fgpush;
resize(hwnd);
//fgout << fgpop;
}
return 0;
}
else if (msg == WM_NOTIFY) {
LPNMHDR lpnmhdr = (LPNMHDR)lParam;
if (lpnmhdr->code == TCN_SELCHANGE) {
int idx = int(SendMessage(m_tabHwnd,TCM_GETCURSEL,0,0));
// This can apparently be -1 for 'no tab selected':
if ((idx >= 0) && (size_t(idx) < m_panes.size())) {
//fgout << fgnl << "Tabs::WM_NOTIFY: " << idx << fgpush;
if (uint(idx) != m_currPane) {
m_panes[m_currPane]->showWindow(false);
m_currPane = uint(idx);
// Must do update check and resize since these are not done when the
// tab is not visible:
m_panes[m_currPane]->updateIfChanged();
resizeCurrPane();
m_panes[m_currPane]->showWindow(true);
if (m_api.tabs[m_currPane].onSelect != NULL)
m_api.tabs[m_currPane].onSelect();
InvalidateRect(hwndThis,NULL,TRUE);
}
//fgout << fgpop;
}
}
return 0;
}
else if (msg == WM_PAINT) {
//fgout << fgnl << "Tabs::WM_PAINT";
}
return DefWindowProc(hwnd,msg,wParam,lParam);
}
LRESULT
wndProc(HWND hwnd,UINT message,WPARAM wParam,LPARAM lParam)
{
if (message == WM_CREATE) {
//fgout << fgnl << "SplitScroll::WM_CREATE" << fgpush;
hwndThis = hwnd;
FGASSERT(m_panes.empty());
FgGuiPtrs panes = m_api.getPanes();
m_panes.resize(panes.size());
for (size_t ii=0; ii<m_panes.size(); ++ii) {
m_panes[ii] = panes[ii]->getInstance();
m_panes[ii]->create(hwndThis,int(ii),m_store+"_"+fgToString(ii),0UL,true);
}
g_gg.dg.update(m_api.updateFlagIdx);
//fgout << fgpop;
return 0;
}
else if (message == WM_SIZE) {
m_client = FgVect2I(LOWORD(lParam),HIWORD(lParam));
if (m_client[0] * m_client[1] > 0) {
//fgout << fgnl << "SplitScroll::WM_SIZE: " << m_client << fgpush;
resize();
//fgout << fgpop;
}
return 0;
}
else if (message == WM_VSCROLL) {
//fgout << "SplitScroll::WM_VSCROLL";
int tmp = m_si.nPos;
// Get the current state, esp. trackbar drag position:
m_si.fMask = SIF_ALL;
GetScrollInfo(hwnd,SB_VERT,&m_si);
int msg = LOWORD(wParam);
if (msg == SB_TOP)
m_si.nPos = m_si.nMin;
else if (msg == SB_BOTTOM)
m_si.nPos = m_si.nMax;
else if (msg == SB_LINEUP)
m_si.nPos -= 5;
else if (msg == SB_LINEDOWN)
m_si.nPos += 5;
else if (msg == SB_PAGEUP)
m_si.nPos -= m_client[1];
else if (msg == SB_PAGEDOWN)
m_si.nPos += m_client[1];
else if (msg == SB_THUMBTRACK)
m_si.nPos = m_si.nTrackPos;
m_si.fMask = SIF_POS;
SetScrollInfo(hwnd,SB_VERT,&m_si,TRUE);
// Windows may clamp the position:
GetScrollInfo(hwnd,SB_VERT,&m_si);
if (m_si.nPos != tmp) {
resize();
InvalidateRect(hwndThis,NULL,TRUE);
}
return 0;
}
else if (message == WM_PAINT) {
//fgout << fgnl << "SplitScroll::WM_PAINT";
}
return DefWindowProc(hwnd,message,wParam,lParam);
}
virtual void
saveState()
{
for (size_t ii=0; ii<m_panes.size(); ++ii)
m_panes[ii]->saveState();
}
LRESULT
wndProc(HWND hwnd,UINT message,WPARAM wParam,LPARAM lParam)
{
switch (message)
{
case WM_CREATE:
{
//fgout << fgnl << "FgGuiWinTabs::WM_CREATE " << m_api.tabs[0].label;
hwndThis = hwnd;
m_tabHwnd =
CreateWindowEx(0,
WC_TABCONTROL,
L"",
WS_CHILD | WS_VISIBLE | TCS_FIXEDWIDTH,
0,0,0,0,
hwnd,
NULL,
s_fgGuiWin.hinst,
NULL);
TCITEM tc = {0};
tc.mask = TCIF_TEXT;
for (size_t ii=0; ii<m_panes.size(); ++ii) {
wstring wstr = m_api.tabs[ii].label.as_wstring();
wstr += wchar_t(0);
tc.pszText = &wstr[0];
TabCtrl_InsertItem(m_tabHwnd,ii,&tc);
m_panes[ii]->create(hwnd,int(ii),m_store+"_"+fgToString(ii),NULL,false);
}
SendMessage(m_tabHwnd,TCM_SETCURSEL,m_currPane,0);
m_panes[m_currPane]->showWindow(true);
return 0;
}
case WM_SIZE:
{
m_client = FgVect2I(LOWORD(lParam),HIWORD(lParam));
//fgout << fgnl << "FgGuiWinTabs::WM_SIZE " << m_api.tabs[0].label << " : " << m_client;
if (m_client[0] * m_client[1] > 0)
resize(hwnd);
return 0;
}
case WM_NOTIFY:
{
LPNMHDR lpnmhdr = (LPNMHDR)lParam;
if (lpnmhdr->code == TCN_SELCHANGE) {
int idx = int(SendMessage(m_tabHwnd,TCM_GETCURSEL,0,0));
// This can apparently be -1 for 'no tab selected':
if ((idx >= 0) && (size_t(idx) < m_panes.size())) {
if (uint(idx) != m_currPane) {
m_panes[m_currPane]->showWindow(false);
m_currPane = uint(idx);
m_panes[m_currPane]->showWindow(true);
resizeCurrPane();
m_panes[m_currPane]->updateIfChanged();
// This is needed only for the first time a tab is selected, and only
// for *some* of the sub-sub windows. No idea why:
InvalidateRect(hwnd,&m_dispArea,FALSE);
}
}
}
return 0;
}
}
return DefWindowProc(hwnd,message,wParam,lParam);
}