gui_input_state.h

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#pragma once
 
#include <gui_core/gui_base_types.h>
#include <gui_core/gui_id.h>
#include <gui_core/input/gui_input_enums.h>
 
#include <string>
#include <vector>
 
namespace tachyon
{

    struct InputState
    {
        tachyon::int2 screenPos{0,0};
        tachyon::int2 prevScreenPos{0,0};
        tachyon::int2 screenDelta{0,0};
 
        tachyon::MouseButtons buttons = tachyon::MouseButtons::None;
        tachyon::MouseButtons prevButtons = tachyon::MouseButtons::None;
 
        tachyon::KeyModifier modifiers = tachyon::KeyModifier::None;
 
        tachyon::float2 scroll{}; 
 
        tachyon::KeyCode lastKey = tachyon::KeyCode::None;
        tachyon::KeyAction lastKeyAction = tachyon::KeyAction::KeyDown;

        tachyon::ID dragSourceID = tachyon::ID::Invalid();
        uint32_t dragPayloadType = 0;
        uintptr_t dragPayloadValue = 0;

        std::string textInput;
        std::vector<std::string> droppedFiles;

        bool consumed = false;
 
        bool LeftDown() const { return (buttons & tachyon::MouseButtons::Left) != tachyon::MouseButtons::None; }
        bool LeftPressed() const { return LeftDown() && ((prevButtons & tachyon::MouseButtons::Left) == tachyon::MouseButtons::None); }
        bool LeftReleased() const { return !LeftDown() && ((prevButtons & tachyon::MouseButtons::Left) != tachyon::MouseButtons::None); }
 
        bool RightDown() const { return (buttons & tachyon::MouseButtons::Right) != tachyon::MouseButtons::None; }
        bool RightPressed() const { return RightDown() && ((prevButtons & tachyon::MouseButtons::Right) == tachyon::MouseButtons::None); }
        bool RightReleased() const { return !RightDown() && ((prevButtons & tachyon::MouseButtons::Right) != tachyon::MouseButtons::None); }
 
        bool MiddleDown() const { return (buttons & tachyon::MouseButtons::Middle) != tachyon::MouseButtons::None; }
        bool MiddlePressed() const { return MiddleDown() && ((prevButtons & tachyon::MouseButtons::Middle) == tachyon::MouseButtons::None); }
        bool MiddleReleased() const { return !MiddleDown() && ((prevButtons & tachyon::MouseButtons::Middle) != tachyon::MouseButtons::None); }
    };

    struct FileDrag
    {
        tachyon::ID   windowID    = tachyon::ID::Invalid();
        tachyon::int2 screenPos   {};
        bool          hasPosition = false;   
    };

    struct FileDrop
    {
        tachyon::ID              windowID = tachyon::ID::Invalid();
        tachyon::int2            screenPos {};
        std::vector<std::string> files;   
        std::string              text;    
    };

}