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Internal: Tabbing: Tweaks to FocusableItemRegister and using the standard mechanism to allow/block Tab being interpreting by tabbing instead of InputText() widget.

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This commit is contained in:
omar
2019-03-05 17:38:36 +01:00
parent 1ed3c4cf4a
commit ce4e62649a
4 changed files with 24 additions and 10 deletions
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21
imgui.cpp
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@ -2895,19 +2895,21 @@ bool ImGui::IsClippedEx(const ImRect& bb, ImGuiID id, bool clip_even_when_logged
return false;
}
bool ImGui::FocusableItemRegister(ImGuiWindow* window, ImGuiID id, bool tab_stop)
bool ImGui::FocusableItemRegister(ImGuiWindow* window, ImGuiID id)
{
ImGuiContext& g = *GImGui;
// Increment counters
const bool is_tab_stop = (window->DC.ItemFlags & (ImGuiItemFlags_NoTabStop | ImGuiItemFlags_Disabled)) == 0;
window->FocusIdxAllCounter++;
if (is_tab_stop)
window->FocusIdxTabCounter++;
// Process keyboard input at this point: TAB/Shift-TAB to tab out of the currently focused item.
// Note that we can always TAB out of a widget that doesn't allow tabbing in.
if (tab_stop && (g.ActiveId == id) && window->FocusIdxAllRequestNext == INT_MAX && window->FocusIdxTabRequestNext == INT_MAX && !g.IO.KeyCtrl && IsKeyPressedMap(ImGuiKey_Tab))
window->FocusIdxTabRequestNext = window->FocusIdxTabCounter + (g.IO.KeyShift ? (is_tab_stop ? -1 : 0) : +1); // Modulo on index will be applied at the end of frame once we've got the total counter of items.
// Process TAB/Shift-TAB to tab *OUT* of the currently focused item.
// (Note that we can always TAB out of a widget that doesn't allow tabbing in)
if (g.ActiveId == id && g.FocusTabPressed && !(g.ActiveIdBlockNavInputFlags & (1 << ImGuiNavInput_KeyTab_)))
if (window->FocusIdxAllRequestNext == INT_MAX && window->FocusIdxTabRequestNext == INT_MAX)
window->FocusIdxTabRequestNext = window->FocusIdxTabCounter + (g.IO.KeyShift ? (is_tab_stop ? -1 : 0) : +1); // Modulo on index will be applied at the end of frame once we've got the total counter of items.
if (window->FocusIdxAllCounter == window->FocusIdxAllRequestCurrent)
return true;
@ -3513,7 +3515,9 @@ void ImGui::NewFrame()
UpdateMouseWheel();
// Pressing TAB activate widget focus
if (g.ActiveId == 0 && g.NavWindow != NULL && g.NavWindow->Active && !(g.NavWindow->Flags & ImGuiWindowFlags_NoNavInputs) && !g.IO.KeyCtrl && IsKeyPressedMap(ImGuiKey_Tab, false))
// (This code is old and will be redesigned for Nav. In the meanwhile we use g.NavTabRequest as storage but this doesn't need ImGuiConfigFlags_NavEnableKeyboard to work!)
g.FocusTabPressed = (g.NavWindow && g.NavWindow->Active && !(g.NavWindow->Flags & ImGuiWindowFlags_NoNavInputs) && !g.IO.KeyCtrl && IsKeyPressedMap(ImGuiKey_Tab));
if (g.ActiveId == 0 && g.FocusTabPressed)
{
if (g.NavId != 0 && g.NavIdTabCounter != INT_MAX)
g.NavWindow->FocusIdxTabRequestNext = g.NavIdTabCounter + 1 + (g.IO.KeyShift ? -1 : 1);
@ -5167,8 +5171,8 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
window->WindowRounding = (flags & ImGuiWindowFlags_ChildWindow) ? style.ChildRounding : ((flags & ImGuiWindowFlags_Popup) && !(flags & ImGuiWindowFlags_Modal)) ? style.PopupRounding : style.WindowRounding;
// Prepare for item focus requests
window->FocusIdxAllRequestCurrent = (window->FocusIdxAllRequestNext == INT_MAX || window->FocusIdxAllCounter == -1) ? INT_MAX : (window->FocusIdxAllRequestNext + (window->FocusIdxAllCounter+1)) % (window->FocusIdxAllCounter+1);
window->FocusIdxTabRequestCurrent = (window->FocusIdxTabRequestNext == INT_MAX || window->FocusIdxTabCounter == -1) ? INT_MAX : (window->FocusIdxTabRequestNext + (window->FocusIdxTabCounter+1)) % (window->FocusIdxTabCounter+1);
window->FocusIdxAllRequestCurrent = (window->FocusIdxAllRequestNext == INT_MAX || window->FocusIdxAllCounter == -1) ? INT_MAX : ImModPositive(window->FocusIdxAllRequestNext, window->FocusIdxAllCounter + 1);
window->FocusIdxTabRequestCurrent = (window->FocusIdxTabRequestNext == INT_MAX || window->FocusIdxTabCounter == -1) ? INT_MAX : ImModPositive(window->FocusIdxTabRequestNext, window->FocusIdxTabCounter + 1);
window->FocusIdxAllCounter = window->FocusIdxTabCounter = -1;
window->FocusIdxAllRequestNext = window->FocusIdxTabRequestNext = INT_MAX;
@ -7609,6 +7613,7 @@ static void ImGui::NavUpdate()
NAV_MAP_KEY(ImGuiKey_RightArrow,ImGuiNavInput_KeyRight_);
NAV_MAP_KEY(ImGuiKey_UpArrow, ImGuiNavInput_KeyUp_ );
NAV_MAP_KEY(ImGuiKey_DownArrow, ImGuiNavInput_KeyDown_ );
NAV_MAP_KEY(ImGuiKey_Tab, ImGuiNavInput_KeyTab_ );
if (g.IO.KeyCtrl)
g.IO.NavInputs[ImGuiNavInput_TweakSlow] = 1.0f;
if (g.IO.KeyShift)