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Internals: Menus: Naming offset field + fix spacing/offset computation to handle more offsets.

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docking
ocornut 4 years ago
parent 3512f2c2c2
commit 696d3e056e
3 changed files with 35 additions and 18 deletions
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1
docs/TODO.txt
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@ -216,6 +216,7 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
- shortcuts: local-style shortcut api, e.g. parse "&Save"
- shortcuts,menus: global-style shortcut api e.g. "Save (CTRL+S)" -> explicit flag for recursing into closed menu
- shortcuts: programmatically access shortcuts "Focus("&Save"))
- menus: hovering a disabled BeginMenu or MenuItem won't close another menu
- menus: menu-bar: main menu-bar could affect clamping of windows position (~ akin to modifying DisplayMin)
- menus: hovering from menu to menu on a menu-bar has 1 frame without any menu, which is a little annoying. ideally either 0 either longer.
- menus: could merge draw call in most cases (how about storing an optional aabb in ImDrawCmd to move the burden of merging in a single spot).

8
imgui_internal.h
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@ -1038,12 +1038,14 @@ struct IMGUI_API ImGuiMenuColumns
ImU32 TotalWidth;
ImU32 NextTotalWidth;
ImU16 Spacing;
ImU16 Offsets[2]; // Offset of: Shortcut, Check mark (locked in Update)
ImU16 Widths[3]; // Width of: Label, Shortcut, Check mark (accumulator for current frame)
ImU16 OffsetShortcut; // Offsets are locked in Update()
ImU16 OffsetMark;
ImU16 Widths[3]; // Width of: Label, Shortcut, Mark (accumulators for current frame)
ImGuiMenuColumns() { memset(this, 0, sizeof(*this)); }
void Update(float spacing, bool window_reappearing);
float DeclColumns(float w_label, float w_shortcut, float w_checkmark);
float DeclColumns(float w_label, float w_shortcut, float w_mark);
void CalcNextTotalWidth(bool update_offsets);
};
// Internal state of the currently focused/edited text input box

44
imgui_widgets.cpp
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@ -6595,27 +6595,39 @@ void ImGuiMenuColumns::Update(float spacing, bool window_reappearing)
{
if (window_reappearing)
memset(Widths, 0, sizeof(Widths));
TotalWidth = NextTotalWidth = 0;
Spacing = (ImU16)spacing;
CalcNextTotalWidth(true);
memset(Widths, 0, sizeof(Widths));
TotalWidth = NextTotalWidth;
NextTotalWidth = 0;
}
void ImGuiMenuColumns::CalcNextTotalWidth(bool update_offsets)
{
ImU16 offset = 0;
bool want_spacing = false;
for (int i = 0; i < IM_ARRAYSIZE(Widths); i++)
{
if (i > 0 && Widths[i] > 0)
TotalWidth += Spacing;
if (i > 0)
Offsets[i - 1] = (ImU16)TotalWidth;
TotalWidth += Widths[i];
Widths[i] = 0;
ImU16 width = Widths[i];
if (want_spacing && width > 0)
offset += Spacing;
want_spacing |= (width > 0);
if (update_offsets)
{
if (i == 1) { OffsetShortcut = offset; }
if (i == 2) { OffsetMark = offset; }
}
offset += width;
}
NextTotalWidth = offset;
}
float ImGuiMenuColumns::DeclColumns(float w_label, float w_shortcut, float w_checkmark)
float ImGuiMenuColumns::DeclColumns(float w_label, float w_shortcut, float w_mark)
{
Widths[0] = ImMax(Widths[0], (ImU16)w_label);
Widths[1] = ImMax(Widths[1], (ImU16)w_shortcut);
Widths[2] = ImMax(Widths[2], (ImU16)w_checkmark);
NextTotalWidth = 0;
for (int i = 0; i < IM_ARRAYSIZE(Widths); i++)
NextTotalWidth += Widths[i] + ((i > 0 && Widths[i] > 0) ? Spacing : 0);
Widths[2] = ImMax(Widths[2], (ImU16)w_mark);
CalcNextTotalWidth(false);
return (float)ImMax(TotalWidth, NextTotalWidth);
}
@ -6829,7 +6841,7 @@ bool ImGui::BeginMenu(const char* label, bool enabled)
float extra_w = ImMax(0.0f, GetContentRegionAvail().x - min_w);
pressed = Selectable(label, menu_is_open, ImGuiSelectableFlags_NoHoldingActiveID | ImGuiSelectableFlags_SelectOnClick | ImGuiSelectableFlags_DontClosePopups | ImGuiSelectableFlags_SpanAvailWidth | (!enabled ? ImGuiSelectableFlags_Disabled : 0), ImVec2(min_w, 0.0f));
ImU32 text_col = GetColorU32(enabled ? ImGuiCol_Text : ImGuiCol_TextDisabled);
RenderArrow(window->DrawList, pos + ImVec2(window->DC.MenuColumns.Offsets[1] + extra_w + g.FontSize * 0.30f, 0.0f), text_col, ImGuiDir_Right);
RenderArrow(window->DrawList, pos + ImVec2(window->DC.MenuColumns.OffsetMark + extra_w + g.FontSize * 0.30f, 0.0f), text_col, ImGuiDir_Right);
}
const bool hovered = enabled && ItemHoverable(window->DC.LastItemRect, id);
@ -6859,6 +6871,8 @@ bool ImGui::BeginMenu(const char* label, bool enabled)
moving_toward_other_child_menu = ImTriangleContainsPoint(ta, tb, tc, g.IO.MousePos);
//GetForegroundDrawList()->AddTriangleFilled(ta, tb, tc, moving_within_opened_triangle ? IM_COL32(0,128,0,128) : IM_COL32(128,0,0,128)); // [DEBUG]
}
// FIXME: Hovering a disabled BeginMenu or MenuItem won't close us
if (menu_is_open && !hovered && g.HoveredWindow == window && g.HoveredIdPreviousFrame != 0 && g.HoveredIdPreviousFrame != id && !moving_toward_other_child_menu)
want_close = true;
@ -6982,11 +6996,11 @@ bool ImGui::MenuItem(const char* label, const char* shortcut, bool selected, boo
if (shortcut_w > 0.0f)
{
PushStyleColor(ImGuiCol_Text, g.Style.Colors[ImGuiCol_TextDisabled]);
RenderText(pos + ImVec2(window->DC.MenuColumns.Offsets[0] + extra_w, 0.0f), shortcut, NULL, false);
RenderText(pos + ImVec2(window->DC.MenuColumns.OffsetShortcut + extra_w, 0.0f), shortcut, NULL, false);
PopStyleColor();
}
if (selected)
RenderCheckMark(window->DrawList, pos + ImVec2(window->DC.MenuColumns.Offsets[1] + extra_w + g.FontSize * 0.40f, g.FontSize * 0.134f * 0.5f), GetColorU32(enabled ? ImGuiCol_Text : ImGuiCol_TextDisabled), g.FontSize * 0.866f);
RenderCheckMark(window->DrawList, pos + ImVec2(window->DC.MenuColumns.OffsetMark + extra_w + g.FontSize * 0.40f, g.FontSize * 0.134f * 0.5f), GetColorU32(enabled ? ImGuiCol_Text : ImGuiCol_TextDisabled), g.FontSize * 0.866f);
}
IMGUI_TEST_ENGINE_ITEM_INFO(window->DC.LastItemId, label, window->DC.LastItemStatusFlags | ImGuiItemStatusFlags_Checkable | (selected ? ImGuiItemStatusFlags_Checked : 0));

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