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WIP Menus: Added support for disabled sub-menu (#126)

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This commit is contained in:
ocornut 2015-05-26 18:02:42 +01:00
parent 0db122bc3b
commit 6b3ccd3edf
2 changed files with 13 additions and 5 deletions
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16
imgui.cpp
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@ -7343,6 +7343,8 @@ static bool SelectableEx(const char* label, bool selected, const ImVec2& size_ar
bool hovered, held;
bool pressed = ButtonBehavior(bb_with_spacing, id, &hovered, &held, true, ((flags & ImGuiSelectableFlags_MenuItem) ? ImGuiButtonFlags_PressedOnClick : 0) | ((flags & ImGuiSelectableFlags_Disabled) ? ImGuiButtonFlags_Disabled : 0));
if (flags & ImGuiSelectableFlags_Disabled)
selected = false;
// Render
if (hovered || selected)
@ -7574,7 +7576,7 @@ void ImGui::EndMenuBar()
window->DC.MenuBarAppending = false;
}
bool ImGui::BeginMenu(const char* label)
bool ImGui::BeginMenu(const char* label, bool enabled)
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
@ -7600,7 +7602,7 @@ bool ImGui::BeginMenu(const char* label)
window->DC.CursorPos.x += (float)(int)(style.ItemSpacing.x * 0.5f);
ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, style.ItemSpacing * 2.0f);
float w = label_size.x;
pressed = SelectableEx(label, opened, ImVec2(w, 0.0f), ImVec2(w, 0.0f), ImGuiSelectableFlags_MenuItem | ImGuiSelectableFlags_DontClosePopups);
pressed = SelectableEx(label, opened, ImVec2(w, 0.0f), ImVec2(w, 0.0f), ImGuiSelectableFlags_MenuItem | ImGuiSelectableFlags_DontClosePopups | (!enabled ? ImGuiSelectableFlags_Disabled : 0));
ImGui::PopStyleVar();
ImGui::SameLine();
window->DC.CursorPos.x += (float)(int)(style.ItemSpacing.x * 0.5f);
@ -7610,11 +7612,13 @@ bool ImGui::BeginMenu(const char* label)
popup_pos = ImVec2(pos.x, pos.y - style.WindowPadding.y);
float w = window->MenuColumns.DeclColumns(label_size.x, 0.0f, (float)(int)(g.FontSize * 1.20f)); // Feedback to next frame
float extra_w = ImMax(0.0f, window->Pos.x + ImGui::GetContentRegionMax().x - pos.x - w);
pressed = SelectableEx(label, opened, ImVec2(w, 0.0f), ImVec2(0.0f, 0.0f), ImGuiSelectableFlags_MenuItem | ImGuiSelectableFlags_DontClosePopups);
pressed = SelectableEx(label, opened, ImVec2(w, 0.0f), ImVec2(0.0f, 0.0f), ImGuiSelectableFlags_MenuItem | ImGuiSelectableFlags_DontClosePopups | (!enabled ? ImGuiSelectableFlags_Disabled : 0));
if (!enabled) ImGui::PushStyleColor(ImGuiCol_Text, g.Style.Colors[ImGuiCol_TextDisabled]);
RenderCollapseTriangle(pos + ImVec2(window->MenuColumns.Pos[2] + extra_w + g.FontSize * 0.20f, 0.0f), false);
if (!enabled) ImGui::PopStyleColor();
}
bool hovered = IsHovered(window->DC.LastItemRect, id);
bool hovered = enabled && IsHovered(window->DC.LastItemRect, id);
if (menuset_opened)
g.FocusedWindow = backed_focused_window;
@ -11415,6 +11419,10 @@ static void ShowExampleMenuFile()
ImGui::MenuItem(ImGui::GetStyleColName((ImGuiCol)i));
ImGui::EndMenu();
}
if (ImGui::BeginMenu("Disabled", false)) // Disabled
{
IM_ASSERT(0);
}
if (ImGui::MenuItem("Quit", "Alt+F4")) {}
}

2
imgui.h
View File

@ -304,7 +304,7 @@ namespace ImGui
IMGUI_API void EndMainMenuBar();
IMGUI_API bool BeginMenuBar(); // append to menu-bar of current window. only call EndMenuBar() if this returns true!
IMGUI_API void EndMenuBar();
IMGUI_API bool BeginMenu(const char* label); // create a sub-menu entry. only call EndMenu() if this returns true!
IMGUI_API bool BeginMenu(const char* label, bool enabled = true); // create a sub-menu entry. only call EndMenu() if this returns true!
IMGUI_API void EndMenu();
IMGUI_API bool MenuItem(const char* label, const char* shortcut = NULL, bool selected = false, bool enabled = true); // return true when activated. shortcuts are displayed for convenience but not processed by ImGui
IMGUI_API bool MenuItem(const char* label, const char* shortcut, bool* p_selected, bool enabled = true); // return true when activated + toggle (*p_selected) if p_selected != NULL