92 lines
2.3 KiB
C++
92 lines
2.3 KiB
C++
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#pragma once
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#ifndef REAL_BUILD
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# include "externals.hh"
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#endif
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/*= DIALOGS ==================================================================*/
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// Base class for a modal dialog that can be pushed to the window's modal
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// stack.
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class A_ModalDialog
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{
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private:
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ebcl::T_Buffer< char > id_;
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bool open_{ false };
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T_Optional< ImVec2 > initialSize_;
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T_StaticArray< ebcl::T_Buffer< char > , 4 > buttons_;
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protected:
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A_ModalDialog( char const* id ) noexcept;
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A_ModalDialog( T_String const& id ) noexcept;
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void setInitialSize( const float width ,
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const float height ) noexcept
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{ initialSize_.setNew( width , height ); }
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// Add a button w/ the specified name, return its identifier
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uint8_t addButton( char const* name ) noexcept;
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uint8_t addButton( T_String const& name ) noexcept;
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// Initialisation, called right before the window is opened.
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// Does nothing by default.
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virtual void initDialog( ) noexcept;
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// Draw the dialog box's contents, returns a mask that determines
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// which buttons should be enabled.
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virtual uint8_t drawDialog( ) noexcept = 0;
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// Button click handler. Returns true if the dialog should be
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// closed.
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virtual bool onButton( uint8_t button ) noexcept = 0;
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public:
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NO_COPY( A_ModalDialog );
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NO_MOVE( A_ModalDialog );
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virtual ~A_ModalDialog( );
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// Draw and handle the dialog box. Returns true if it must be kept,
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// or false if it must be removed from the stack.
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bool draw( ) noexcept;
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};
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using P_ModalDialog = T_OwnPtr< A_ModalDialog >;
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// Simple modal message box with configurable buttons
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class T_MessageBox : public A_ModalDialog
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{
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public:
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enum E_Button {
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BT_OK ,
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BT_CANCEL ,
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BT_YES ,
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BT_NO ,
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};
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using T_Buttons = T_Flags< E_Button >;
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// Result handler
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using F_Handler = std::function< void( E_Button ) >;
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private:
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ebcl::T_Buffer< char > text_;
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F_Handler handler_;
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uint8_t buttonMask_{ 0 };
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T_StaticArray< E_Button , 4 > buttons_;
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void setButtons( T_Buttons buttons ) noexcept;
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protected:
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uint8_t drawDialog( ) noexcept override;
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bool onButton( uint8_t button ) noexcept override;
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public:
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T_MessageBox( char const* title ,
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char const* text ,
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F_Handler handler = { } ,
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T_Buttons buttons = BT_OK ) noexcept;
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T_MessageBox( T_String const& title ,
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T_String const& text ,
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F_Handler handler = { } ,
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T_Buttons buttons = BT_OK ) noexcept;
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};
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