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Internals: Menus: minor tidying up + renaming in ImGuiMenuColumns + removing extraneous offset field which is always zero + using smaller types.

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sizeof() 36 -> 20
This commit is contained in:
ocornut 2021-07-07 19:03:10 +02:00
parent baa4caf9e3
commit 3512f2c2c2
4 changed files with 34 additions and 39 deletions
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2
imgui.cpp
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@ -6266,7 +6266,7 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
window->DC.NavHasScroll = (window->ScrollMax.y > 0.0f);
window->DC.MenuBarAppending = false;
window->DC.MenuColumns.Update(3, style.ItemSpacing.x, window_just_activated_by_user);
window->DC.MenuColumns.Update(style.ItemSpacing.x, window_just_activated_by_user);
window->DC.TreeDepth = 0;
window->DC.TreeJumpToParentOnPopMask = 0x00;
window->DC.ChildWindows.resize(0);

6
imgui_demo.cpp
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@ -1168,7 +1168,7 @@ static void ShowDemoWindowWidgets()
{
static bool selected[10] = {};
if (ImGui::BeginTable("split1", 3, ImGuiTableFlags_Resizable | ImGuiTableFlags_NoSavedSettings))
if (ImGui::BeginTable("split1", 3, ImGuiTableFlags_Resizable | ImGuiTableFlags_NoSavedSettings | ImGuiTableFlags_Borders))
{
for (int i = 0; i < 10; i++)
{
@ -1179,8 +1179,8 @@ static void ShowDemoWindowWidgets()
}
ImGui::EndTable();
}
ImGui::Separator();
if (ImGui::BeginTable("split2", 3, ImGuiTableFlags_Resizable | ImGuiTableFlags_NoSavedSettings))
ImGui::Spacing();
if (ImGui::BeginTable("split2", 3, ImGuiTableFlags_Resizable | ImGuiTableFlags_NoSavedSettings | ImGuiTableFlags_Borders))
{
for (int i = 0; i < 10; i++)
{

13
imgui_internal.h
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@ -1035,14 +1035,15 @@ struct IMGUI_API ImGuiGroupData
// Simple column measurement, currently used for MenuItem() only.. This is very short-sighted/throw-away code and NOT a generic helper.
struct IMGUI_API ImGuiMenuColumns
{
float Spacing;
float Width, NextWidth;
float Pos[3], NextWidths[3];
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)
ImGuiMenuColumns() { memset(this, 0, sizeof(*this)); }
void Update(int count, float spacing, bool clear);
float DeclColumns(float w0, float w1, float w2);
float CalcExtraSpace(float avail_w) const;
void Update(float spacing, bool window_reappearing);
float DeclColumns(float w_label, float w_shortcut, float w_checkmark);
};
// Internal state of the currently focused/edited text input box

52
imgui_widgets.cpp
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@ -6591,38 +6591,32 @@ void ImGui::Value(const char* prefix, float v, const char* float_format)
//-------------------------------------------------------------------------
// Helpers for internal use
void ImGuiMenuColumns::Update(int count, float spacing, bool clear)
void ImGuiMenuColumns::Update(float spacing, bool window_reappearing)
{
IM_ASSERT(count == IM_ARRAYSIZE(Pos));
IM_UNUSED(count);
Width = NextWidth = 0.0f;
Spacing = spacing;
if (clear)
memset(NextWidths, 0, sizeof(NextWidths));
for (int i = 0; i < IM_ARRAYSIZE(Pos); i++)
if (window_reappearing)
memset(Widths, 0, sizeof(Widths));
TotalWidth = NextTotalWidth = 0;
Spacing = (ImU16)spacing;
for (int i = 0; i < IM_ARRAYSIZE(Widths); i++)
{
if (i > 0 && NextWidths[i] > 0.0f)
Width += Spacing;
Pos[i] = IM_FLOOR(Width);
Width += NextWidths[i];
NextWidths[i] = 0.0f;
if (i > 0 && Widths[i] > 0)
TotalWidth += Spacing;
if (i > 0)
Offsets[i - 1] = (ImU16)TotalWidth;
TotalWidth += Widths[i];
Widths[i] = 0;
}
}
float ImGuiMenuColumns::DeclColumns(float w0, float w1, float w2) // not using va_arg because they promote float to double
float ImGuiMenuColumns::DeclColumns(float w_label, float w_shortcut, float w_checkmark)
{
NextWidth = 0.0f;
NextWidths[0] = ImMax(NextWidths[0], w0);
NextWidths[1] = ImMax(NextWidths[1], w1);
NextWidths[2] = ImMax(NextWidths[2], w2);
for (int i = 0; i < IM_ARRAYSIZE(Pos); i++)
NextWidth += NextWidths[i] + ((i > 0 && NextWidths[i] > 0.0f) ? Spacing : 0.0f);
return ImMax(Width, NextWidth);
}
float ImGuiMenuColumns::CalcExtraSpace(float avail_w) const
{
return ImMax(0.0f, avail_w - Width);
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);
return (float)ImMax(TotalWidth, NextTotalWidth);
}
// FIXME: Provided a rectangle perhaps e.g. a BeginMenuBarEx() could be used anywhere..
@ -6835,7 +6829,7 @@ 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.Pos[2] + extra_w + g.FontSize * 0.30f, 0.0f), text_col, ImGuiDir_Right);
RenderArrow(window->DrawList, pos + ImVec2(window->DC.MenuColumns.Offsets[1] + extra_w + g.FontSize * 0.30f, 0.0f), text_col, ImGuiDir_Right);
}
const bool hovered = enabled && ItemHoverable(window->DC.LastItemRect, id);
@ -6988,11 +6982,11 @@ 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.Pos[1] + extra_w, 0.0f), shortcut, NULL, false);
RenderText(pos + ImVec2(window->DC.MenuColumns.Offsets[0] + extra_w, 0.0f), shortcut, NULL, false);
PopStyleColor();
}
if (selected)
RenderCheckMark(window->DrawList, pos + ImVec2(window->DC.MenuColumns.Pos[2] + 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.Offsets[1] + 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));