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Merge pull request #75845 from db48x/implement-uilist-second-column
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format `uilist` menu entries with a table
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@Maleclypse
Maleclypse authored Aug 21, 2024
2 parents 6412e91 + 20011ca commit cdd78ab
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Showing 2 changed files with 82 additions and 52 deletions.
131 changes: 79 additions & 52 deletions src/ui.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -61,9 +61,6 @@ void uilist_impl::on_resized()

void uilist_impl::draw_controls()
{
float hotkey_width =
ImGui::CalcTextSize( "[X]" ).x + ImGui::GetStyle().ItemSpacing.x;

if( !parent.text.empty() ) {
cataimgui::draw_colored_text( parent.text );
ImGui::Separator();
Expand All @@ -81,47 +78,58 @@ void uilist_impl::draw_controls()
ImGui::TableNextRow();
ImGui::TableSetColumnIndex( 1 );

float entry_height = ImGui::GetTextLineHeightWithSpacing();
if( ImGui::BeginChild( "scroll", parent.calculated_menu_size, false ) ) {
// It would be natural to make the entries into buttons, or
// combos, or other pre-built ui elements. For now I am mostly
// going to copy the style of the original textual ui elements.
for( size_t i = 0; i < parent.fentries.size(); i++ ) {
auto entry = parent.entries[parent.fentries[i]];
ImGui::PushID( i );
ImGuiSelectableFlags_ flags = !entry.enabled ? ImGuiSelectableFlags_Disabled :
ImGuiSelectableFlags_None;
bool is_selected = static_cast<int>( i ) == parent.fselected;
if( ImGui::Selectable( "", is_selected, flags | ImGuiSelectableFlags_AllowItemOverlap ) ||
ImGui::IsItemHovered() ) {
parent.fselected = i;
parent.selected = parent.fentries[parent.fselected];
}
ImGui::SameLine( 0, 0 );
if( is_selected ) {
ImGui::SetItemDefaultFocus();
ImGui::SetScrollHereY();
}
if( ImGui::BeginTable( "menu items", 3, ImGuiTableFlags_SizingFixedFit ) ) {
ImGui::TableSetupColumn( "hotkey", ImGuiTableColumnFlags_WidthFixed,
parent.calculated_hotkey_width );
ImGui::TableSetupColumn( "primary", ImGuiTableColumnFlags_WidthFixed,
parent.calculated_label_width );
ImGui::TableSetupColumn( "secondary", ImGuiTableColumnFlags_WidthFixed,
parent.calculated_secondary_width );

// It would be natural to make the entries into buttons, or
// combos, or other pre-built ui elements. For now I am mostly
// going to copy the style of the original textual ui elements.
for( size_t i = 0; i < parent.fentries.size(); i++ ) {
auto entry = parent.entries[parent.fentries[i]];
ImGui::TableNextRow( ImGuiTableRowFlags_None, entry_height );
ImGui::TableSetColumnIndex( 0 );

ImVec2 rowMin = ImGui::GetCursorScreenPos();
ImVec2 rowMax = ImVec2( rowMin.x + parent.calculated_menu_size.x, rowMin.y + entry_height );
bool is_hovered = ImGui::IsMouseHoveringRect( rowMin, rowMax, false );
if( is_hovered ) {
ImGui::TableSetBgColor( ImGuiTableBgTarget_RowBg1,
ImColor( ImGui::GetStyle().Colors[ ImGuiCol_HeaderHovered ] ) );
parent.fselected = i;
}
bool is_selected = static_cast<int>( i ) == parent.fselected;
if( is_selected ) {
ImGui::SetItemDefaultFocus();
ImGui::SetScrollHereY();
ImGui::TableSetBgColor( ImGuiTableBgTarget_RowBg1,
ImColor( ImGui::GetStyle().Colors[ ImGuiCol_HeaderActive ] ) );
}

if( entry.hotkey.has_value() ) {
ImGui::Text( "%c", '[' );
ImGui::SameLine( 0, 0 );
nc_color color = is_selected ? parent.hilight_color : parent.hotkey_color;
cataimgui::draw_colored_text( entry.hotkey.value().short_description(),
color );
ImGui::SameLine( 0, 0 );
ImGui::Text( "%c", ']' );
ImGui::SameLine();
} else {
ImGui::SetCursorPosX( hotkey_width );
if( entry.hotkey.has_value() ) {
nc_color color = is_selected ? parent.hilight_color : parent.hotkey_color;
cataimgui::draw_colored_text( entry.hotkey.value().short_description(),
color );
}
ImGui::TableSetColumnIndex( 1 );
nc_color color = ( is_selected ?
parent.hilight_color :
( entry.enabled || entry.force_color ?
entry.text_color :
parent.disabled_color ) );
cataimgui::draw_colored_text( entry.txt, color );
ImGui::TableSetColumnIndex( 2 );
if( !entry.ctxt.empty() ) {
cataimgui::draw_colored_text( entry.ctxt, color );
}
}
nc_color color = ( is_selected ?
parent.hilight_color :
( entry.enabled || entry.force_color ?
entry.text_color :
parent.disabled_color ) );
cataimgui::draw_colored_text( entry.txt,
color );
ImGui::PopID();
ImGui::EndTable();
}
}
ImGui::EndChild();
Expand Down Expand Up @@ -357,6 +365,9 @@ void uilist::init()
desired_bounds = std::nullopt;
calculated_bounds = { -1.f, -1.f, -1.f, -1.f };
calculated_menu_size = { 0.0, 0.0 };
calculated_hotkey_width = 0.0;
calculated_label_width = 0.0;
calculated_secondary_width = 0.0;
extra_space_left = 0.0;
extra_space_right = 0.0;
ret = UILIST_WAIT_INPUT;
Expand Down Expand Up @@ -556,6 +567,8 @@ static ImVec2 calc_size( const std::string_view line )

void uilist::calc_data()
{
ImGuiStyle s = ImGui::GetStyle();

std::vector<int> autoassign;
for( size_t i = 0; i < entries.size(); i++ ) {
if( entries[ i ].enabled ) {
Expand Down Expand Up @@ -594,13 +607,13 @@ void uilist::calc_data()
bool has_titlebar = !title.empty();
if( has_titlebar ) {
title_size = calc_size( title );
title_size.y += ImGui::GetStyle().FramePadding.y * 2.0;
title_size.y += s.FramePadding.y * 2.0;
}

ImVec2 text_size = {};
if( !text.empty() ) {
text_size = calc_size( text );
text_size.y += ImGui::GetStyle().ItemSpacing.y * 2.0;
text_size.y += s.ItemSpacing.y * 2.0;
}

ImVec2 desc_size = {};
Expand All @@ -614,37 +627,51 @@ void uilist::calc_data()
if( desc_size.y <= 0.0 ) {
desc_enabled = false;
}
desc_size.y += ImGui::GetStyle().ItemSpacing.y * 2.0;
desc_size.y += s.ItemSpacing.y * 2.0;
}
float additional_height = title_size.y + text_size.y + desc_size.y + 2.0 *
( ImGui::GetStyle().FramePadding.y + ImGui::GetStyle().WindowBorderSize );
( s.FramePadding.y + s.WindowBorderSize );

if( vmax * ImGui::GetTextLineHeightWithSpacing() + additional_height >
ImGui::GetMainViewport()->Size.y ) {
vmax = floorf( ( ImGui::GetMainViewport()->Size.y - additional_height ) /
ImGui::GetTextLineHeightWithSpacing() );
}

calculated_menu_size = { 0.0, 0.0 };
float padding = 2.0f * s.CellPadding.x;
calculated_hotkey_width = ImGui::CalcTextSize( "X" ).x;
calculated_label_width = 0.0;
calculated_secondary_width = 0.0;
for( int fentry : fentries ) {
calculated_menu_size.x = std::max( calculated_menu_size.x, calc_size( entries[fentry].txt ).x );
calculated_label_width = std::max( calculated_label_width, calc_size( entries[fentry].txt ).x );
calculated_secondary_width = std::max( calculated_secondary_width,
calc_size( entries[fentry].ctxt ).x );
}
calculated_menu_size.x += ImGui::CalcTextSize( " [X] " ).x;
calculated_menu_size = { 0.0, 0.0 };
calculated_menu_size.x += calculated_hotkey_width + padding;
calculated_menu_size.x += calculated_label_width + padding;
calculated_menu_size.x += calculated_secondary_width + padding;
calculated_menu_size.y = std::min( ImGui::GetMainViewport()->Size.y - additional_height,
vmax * ImGui::GetTextLineHeightWithSpacing() ) + ( ImGui::GetStyle().FramePadding.y * 2.0 );
vmax * ImGui::GetTextLineHeightWithSpacing() ) + ( s.FramePadding.y * 2.0 );

extra_space_left = 0.0;
extra_space_right = 0.0;
if( callback != nullptr ) {
extra_space_left = callback->desired_extra_space_left( ) + ImGui::GetStyle().FramePadding.x;
extra_space_right = callback->desired_extra_space_right( ) + ImGui::GetStyle().FramePadding.x;
extra_space_left = callback->desired_extra_space_left( ) + s.FramePadding.x;
extra_space_right = callback->desired_extra_space_right( ) + s.FramePadding.x;
}

float longest_line_width = std::max( std::max( title_size.x, text_size.x ),
std::max( calculated_menu_size.x, desc_size.x ) );
calculated_bounds.w = extra_space_left + extra_space_right + longest_line_width
+ 2 * ( ImGui::GetStyle().WindowPadding.x + ImGui::GetStyle().WindowBorderSize );
+ 2 * ( s.WindowPadding.x + s.WindowBorderSize );
calculated_bounds.h = calculated_menu_size.y + additional_height;

if( longest_line_width > calculated_menu_size.x ) {
calculated_menu_size.x = longest_line_width;
calculated_label_width = calculated_menu_size.x - calculated_hotkey_width - padding -
calculated_secondary_width - padding - padding;
}
}

void uilist::setup()
Expand Down
3 changes: 3 additions & 0 deletions src/ui.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -460,6 +460,9 @@ class uilist // NOLINT(cata-xy)
private:
ImVec2 calculated_menu_size;
cataimgui::bounds calculated_bounds;
float calculated_hotkey_width;
float calculated_label_width;
float calculated_secondary_width;
float extra_space_left;
float extra_space_right;
std::vector<int> fentries;
Expand Down

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