demotool/ui-app.cc

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#include "externals.hh"
#include "ui-app.hh"
#include "ui-imgui-sdl.hh"
#include <imgui_internal.h>
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/*= T_UIApp =================================================================*/
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namespace {
#include "font-awesome.inl"
static const ImWchar IconsRanges_[] = {
ICON_MIN_FA ,
ICON_MAX_FA ,
0
};
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} // namespace <anon>
T_UIApp::T_UIApp( )
{
SDL_Init( SDL_INIT_VIDEO | SDL_INIT_TIMER );
SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER , 1 );
SDL_GL_SetAttribute( SDL_GL_DEPTH_SIZE , 24 );
SDL_GL_SetAttribute( SDL_GL_STENCIL_SIZE , 8 );
SDL_GL_SetAttribute( SDL_GL_CONTEXT_MAJOR_VERSION , 2 );
SDL_GL_SetAttribute( SDL_GL_CONTEXT_MINOR_VERSION , 2 );
SDL_DisplayMode current;
SDL_GetCurrentDisplayMode( 0 , &current );
window = SDL_CreateWindow( "DEMO",
SDL_WINDOWPOS_CENTERED , SDL_WINDOWPOS_CENTERED ,
1280 , 720 ,
SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE );
gl = SDL_GL_CreateContext( window );
glewInit( );
if ( !GLEW_VERSION_4_5 ) {
fprintf( stderr , "OpenGL 4.5 required\n" );
exit( 1 );
}
ImGui_ImplSdl_Init( window );
using namespace ImGui;
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StyleColorsDark( );
ImGuiIO& io{ GetIO( ) };
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io.IniFilename = nullptr;
{
ImFontConfig cfg;
cfg.SizePixels = 13.0f;
defaultFont_ = io.Fonts->AddFontDefault( &cfg );
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ImFontConfig icons;
icons.MergeMode = true;
icons.PixelSnapH = true;
io.Fonts->AddFontFromMemoryCompressedBase85TTF(
FontAwesome__compressed_data_base85 , 13.f ,
&icons , IconsRanges_ );
}
{
ImFontConfig cfg;
cfg.SizePixels = 9.0f;
smallFont_ = io.Fonts->AddFontDefault( &cfg );
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ImFontConfig icons;
icons.MergeMode = true;
icons.PixelSnapH = true;
icons.DstFont = smallFont_;
io.Fonts->AddFontFromMemoryCompressedBase85TTF(
FontAwesome__compressed_data_base85 , 9.f ,
&icons , IconsRanges_ );
}
}
T_UIApp::~T_UIApp( )
{
ImGui_ImplSdl_Shutdown( );
SDL_GL_DeleteContext( gl );
SDL_DestroyWindow( window );
SDL_Quit( );
}
void T_UIApp::addAction(
T_UIAction action ) noexcept
{
actions_.set( std::move( action ) );
}
void T_UIApp::actionMenu(
T_String const& id ) const noexcept
{
auto const* const a{ actions_.get( id ) };
if ( a ) {
a->menuItem( );
}
}
void T_UIApp::actionButton(
T_String const& id ) const noexcept
{
auto const* const a{ actions_.get( id ) };
if ( a ) {
a->tbButton( );
}
}
void T_UIApp::startFrame(
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const bool capture ,
ImVec2 const& mouseInitial ) const
{
ImGui_ImplSdl_NewFrame( window , capture , mouseInitial );
}
void T_UIApp::warpMouse(
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ImVec2 const& pos ) const
{
SDL_WarpMouseInWindow( window , pos.x , pos.y );
}
void T_UIApp::swap( ) const
{
SDL_GL_SwapWindow( window );
}
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void T_UIApp::handleDialogs( ) noexcept
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{
const auto nDialogs{ modals_.size( ) };
for ( auto i = 0u ; i < nDialogs ; i ++ ) {
const bool keep{ modals_[ i ]->draw( ) };
assert( keep || i + 1 == nDialogs );
if ( !keep ) {
modals_.removeLast( );
}
}
}