tracy/server/TracyImGui.hpp

#ifndef __TRACYIMGUI_HPP__
#define __TRACYIMGUI_HPP__

#ifdef _MSC_VER
#  pragma warning( disable: 4244 )  // conversion from don't care to whatever, possible loss of data
#endif

#include <math.h>
#include <stdint.h>

#include "imgui.h"
#include "imgui_internal.h"

#include "../public/common/TracyForceInline.hpp"
#include "IconsFontAwesome5.h"

#if !IMGUI_DEFINE_MATH_OPERATORS
static inline ImVec2 operator+( const ImVec2& l, const ImVec2& r ) { return ImVec2( l.x + r.x, l.y + r.y ); }
static inline ImVec2 operator-( const ImVec2& l, const ImVec2& r ) { return ImVec2( l.x - r.x, l.y - r.y ); }
#endif

namespace tracy
{

void DrawZigZag( ImDrawList* draw, const ImVec2& wpos, double start, double end, double h, uint32_t color, float thickness = 1.f );
void DrawStripedRect( ImDrawList* draw, const ImVec2& wpos, double x0, double y0, double x1, double y1, double sw, uint32_t color, bool fix_stripes_in_screen_space, bool inverted );
void DrawHistogramMinMaxLabel( ImDrawList* draw, int64_t tmin, int64_t tmax, ImVec2 wpos, float w, float ty );


static constexpr const ImVec4 SyntaxColors[] = {
    { 0.7f,  0.7f,  0.7f,  1 },    // default
    { 0.45f, 0.68f, 0.32f, 1 },    // comment
    { 0.72f, 0.37f, 0.12f, 1 },    // preprocessor
    { 0.64f, 0.64f, 1,     1 },    // string
    { 0.64f, 0.82f, 1,     1 },    // char literal
    { 1,     0.91f, 0.53f, 1 },    // keyword
    { 0.81f, 0.6f,  0.91f, 1 },    // number
    { 0.9f,  0.9f,  0.9f,  1 },    // punctuation
    { 0.78f, 0.46f, 0.75f, 1 },    // type
    { 0.21f, 0.69f, 0.89f, 1 },    // special
};

static constexpr const ImVec4 SyntaxColorsDimmed[] = {
    { 0.7f,  0.7f,  0.7f,  0.6f },    // default
    { 0.45f, 0.68f, 0.32f, 0.6f },    // comment
    { 0.72f, 0.37f, 0.12f, 0.6f },    // preprocessor
    { 0.64f, 0.64f, 1,     0.6f },    // string
    { 0.64f, 0.82f, 1,     0.6f },    // char literal
    { 1,     0.91f, 0.53f, 0.6f },    // keyword
    { 0.81f, 0.6f,  0.91f, 0.6f },    // number
    { 0.9f,  0.9f,  0.9f,  0.6f },    // punctuation
    { 0.78f, 0.46f, 0.75f, 0.6f },    // type
    { 0.21f, 0.69f, 0.89f, 0.6f },    // special
};


[[maybe_unused]] static inline float GetScale()
{
    return ImGui::GetTextLineHeight() / 15.f;
}

[[maybe_unused]] static inline void TextCentered( const char* text )
{
    const auto tw = ImGui::CalcTextSize( text ).x;
    ImGui::SetCursorPosX( ( ImGui::GetWindowWidth() - tw ) * 0.5f );
    ImGui::TextUnformatted( text );
}

[[maybe_unused]] static inline void TextColoredUnformatted( uint32_t col, const char* text, const char* end = nullptr )
{
    ImGui::PushStyleColor( ImGuiCol_Text, col );
    ImGui::TextUnformatted( text, end );
    ImGui::PopStyleColor();
}

[[maybe_unused]] static inline void TextColoredUnformatted( const ImVec4& col, const char* text, const char* end = nullptr )
{
    ImGui::PushStyleColor( ImGuiCol_Text, col );
    ImGui::TextUnformatted( text, end );
    ImGui::PopStyleColor();
}

[[maybe_unused]] static inline void TextDisabledUnformatted( const char* begin, const char* end = nullptr )
{
    ImGui::PushStyleColor( ImGuiCol_Text, GImGui->Style.Colors[ImGuiCol_TextDisabled] );
    ImGui::TextUnformatted( begin, end );
    ImGui::PopStyleColor();
}

[[maybe_unused]] static inline void TextFocused( const char* label, const char* value )
{
    TextDisabledUnformatted( label );
    ImGui::SameLine();
    ImGui::TextUnformatted( value );
}

[[maybe_unused]] static inline void DrawWaitingDots( double time )
{
    ImGui::TextUnformatted( "" );
    auto draw = ImGui::GetWindowDrawList();
    const auto wpos = ImGui::GetWindowPos();
    const auto ty = ImGui::GetTextLineHeight();
    const auto h = ImGui::GetCursorPosY() - ty * 0.5f;
    const auto w = ImGui::GetWindowWidth();
    draw->AddCircleFilled( wpos + ImVec2( w * 0.5f - ty, h ), ty * ( 0.15f + 0.2f * ( pow( cos( time * 3.5f + 0.3f ), 16.f ) ) ), 0xFFBBBBBB, 12 );
    draw->AddCircleFilled( wpos + ImVec2( w * 0.5f     , h ), ty * ( 0.15f + 0.2f * ( pow( cos( time * 3.5f        ), 16.f ) ) ), 0xFFBBBBBB, 12 );
    draw->AddCircleFilled( wpos + ImVec2( w * 0.5f + ty, h ), ty * ( 0.15f + 0.2f * ( pow( cos( time * 3.5f - 0.3f ), 16.f ) ) ), 0xFFBBBBBB, 12 );
}

[[maybe_unused]] static inline bool SmallCheckbox( const char* label, bool* var )
{
    ImGui::PushStyleVar( ImGuiStyleVar_FramePadding, ImVec2( 0, 0 ) );
    auto ret = ImGui::Checkbox( label, var );
    ImGui::PopStyleVar();
    return ret;
}

[[maybe_unused]] static inline void SmallColorBox( uint32_t color )
{
    ImGui::PushStyleVar( ImGuiStyleVar_FramePadding, ImVec2( 0, 0 ) );
    ImGui::ColorButton( "c1", ImVec4( (color & 0xFF) / 255.f, ((color>>8) & 0xFF ) / 255.f, ((color>>16) & 0xFF ) / 255.f, 1.f ), ImGuiColorEditFlags_NoTooltip | ImGuiColorEditFlags_NoDragDrop );
    ImGui::PopStyleVar();
}

[[maybe_unused]] static inline bool ButtonDisablable( const char* label, bool disabled )
{
    if( disabled )
    {
        ImGui::BeginDisabled();
        ImGui::Button( label );
        ImGui::EndDisabled();
        return false;
    }
    else
    {
        return ImGui::Button( label );
    }
}

[[maybe_unused]] static inline bool SmallButtonDisablable( const char* label, bool disabled )
{
    if( disabled )
    {
        ImGui::BeginDisabled();
        ImGui::SmallButton( label );
        ImGui::EndDisabled();
        return false;
    }
    else
    {
        return ImGui::SmallButton( label );
    }
}

[[maybe_unused]] static inline void DrawTextContrast( ImDrawList* draw, const ImVec2& pos, uint32_t color, const char* text )
{
    const auto scale = round( GetScale() );
    draw->AddText( pos + ImVec2( scale, scale ), 0xAA000000, text );
    draw->AddText( pos, color, text );
}

[[maybe_unused]] static inline void DrawTextSuperContrast( ImDrawList* draw, const ImVec2& pos, uint32_t color, const char* text )
{
    const auto scale = GetScale();
    const auto s1 = round( scale );
    const auto s2 = round( scale * 1.5f );
    draw->AddText( pos + ImVec2( 0, s2 ), 0xAA000000, text );
    draw->AddText( pos + ImVec2( 0, -s2 ), 0xAA000000, text );
    draw->AddText( pos + ImVec2( s2, 0 ), 0xAA000000, text );
    draw->AddText( pos + ImVec2( -s2, 0 ), 0xAA000000, text );
    draw->AddText( pos + ImVec2( s1, s1 ), 0xAA000000, text );
    draw->AddText( pos + ImVec2( -s1, s1 ), 0xAA000000, text );
    draw->AddText( pos + ImVec2( -s1, -s1 ), 0xAA000000, text );
    draw->AddText( pos + ImVec2( s1, -s1 ), 0xAA000000, text );
    draw->AddText( pos, color, text );
}

[[maybe_unused]] static void SetButtonHighlightColor()
{
    ImGui::PushStyleColor( ImGuiCol_Button, (ImVec4)ImColor::HSV( 0.35f, 0.6f, 0.6f ) );
    ImGui::PushStyleColor( ImGuiCol_ButtonHovered, (ImVec4)ImColor::HSV( 0.35f, 0.8f, 0.8f ) );
    ImGui::PushStyleColor( ImGuiCol_ButtonActive, (ImVec4)ImColor::HSV( 0.35f, 0.7f, 0.7f ) );
}

[[maybe_unused]] static void ToggleButton( const char* label, bool& toggle )
{
    const auto active = toggle;
    if( active ) SetButtonHighlightColor();
    if( ImGui::Button( label ) ) toggle = !toggle;
    if( active ) ImGui::PopStyleColor( 3 );
}

[[maybe_unused]] static void SmallToggleButton( const char* label, bool& toggle )
{
    const auto active = toggle;
    if( active ) SetButtonHighlightColor();
    ImGui::PushStyleVar( ImGuiStyleVar_FramePadding, ImVec2( 0, 0 ) );
    if( ImGui::Button( label ) ) toggle = !toggle;
    ImGui::PopStyleVar( 1 );
    if( active ) ImGui::PopStyleColor( 3 );
}

[[maybe_unused]] static bool ClipboardButton( int id = 0 )
{
    ImGui::PushStyleColor( ImGuiCol_Border, ImVec4( 0.43f, 0.43f, 0.50f, 0.25f ) );
    ImGui::PushStyleColor( ImGuiCol_Button, ImVec4( 0.26f, 0.59f, 0.98f, 0.20f ) );
    ImGui::PushStyleColor( ImGuiCol_ButtonHovered, ImVec4( 0.26f, 0.59f, 0.98f, 0.5f ) );
    ImGui::PushStyleColor( ImGuiCol_ButtonActive, ImVec4( 0.06f, 0.53f, 0.98f, 0.5f ) );
    ImGui::PushStyleColor( ImGuiCol_Text, GImGui->Style.Colors[ImGuiCol_TextDisabled] );
    ImGui::PushID( id );
    const auto res = ImGui::SmallButton( ICON_FA_CLIPBOARD );
    ImGui::PopID();
    ImGui::PopStyleColor( 5 );
    return res;
}

[[maybe_unused]] static tracy_force_inline void DrawLine( ImDrawList* draw, const ImVec2& v1, const ImVec2& v2, uint32_t col, float thickness = 1.0f )
{
    const ImVec2 data[2] = { v1, v2 };
    draw->AddPolyline( data, 2, col, 0, thickness );
}

[[maybe_unused]] static tracy_force_inline void DrawLine( ImDrawList* draw, const ImVec2& v1, const ImVec2& v2, const ImVec2& v3, uint32_t col, float thickness = 1.0f )
{
    const ImVec2 data[3] = { v1, v2, v3 };
    draw->AddPolyline( data, 3, col, 0, thickness );
}

[[maybe_unused]] static tracy_force_inline void TooltipIfHovered( const char* text )
{
    if( !ImGui::IsItemHovered() ) return;
    ImGui::BeginTooltip();
    ImGui::TextUnformatted( text );
    ImGui::EndTooltip();
}

[[maybe_unused]] void tracy_force_inline DrawHelpMarker( const char* desc )
{
    TextDisabledUnformatted( "(?)" );
    if( ImGui::IsItemHovered() )
    {
        const auto ty = ImGui::GetTextLineHeight();
        ImGui::BeginTooltip();
        ImGui::PushTextWrapPos( 450.0f * ty / 15.f );
        ImGui::TextUnformatted( desc );
        ImGui::PopTextWrapPos();
        ImGui::EndTooltip();
    }
}

}

#endif