Sequencer - Progress on track display

ui-sequencer.cc

@@ -16,7 +16,7 @@ using namespace ebcl;
 
 namespace {
 
-/*= VARIOUS IMGUI HELPERS ====================================================*/
+/*= VARIOUS HELPERS ==========================================================*/
 
 bool FakeTab_(
 		char const* const name ,
@@ -34,6 +34,18 @@ bool FakeTab_(
 	return rv;
 }
 
+void TimeToString_(
+		char* const buffer ,
+		const size_t bSize ,
+		const float time ) noexcept
+{
+	const float msf{ fmod( time , 1.f ) };
+	const float sf{ fmod( time - msf , 60.f ) };
+	snprintf( buffer , bSize , "%02d:%02d.%03d" ,
+			uint32_t( ( time - msf - sf ) / 60.f ) ,
+			uint32_t( sf ) , uint32_t( msf * 1000.f ) );
+}
+
 
 /*= T_ChangeDurationDialog_ ==================================================*/
 
@@ -139,10 +151,62 @@ struct T_SyncViewImpl_
 	static constexpr float BarWidth = 40.f;
 	static constexpr float TrackHeight = 15.f;
 	static constexpr float TrackPadding = 2.f;
+	static constexpr float PointRadius = ( TrackHeight - 2.f ) * .5f;
+	static constexpr float PointRadiusSqr = PointRadius * PointRadius;
 
 	bool display( ) noexcept;
 
     private:
+	// Track display data
+	struct T_TrackDisplay
+	{
+		T_String id;
+		bool isOverride;
+		ImRect area;
+		uint32_t dispSegs;
+		uint32_t firstSeg;
+	};
+	struct T_TrackSegDisplay
+	{
+		uint32_t track;
+		uint32_t seg;
+		ImRect area;
+		uint32_t dispPoints;
+		uint32_t firstPoint;
+	};
+	struct T_TrackPointDisplay
+	{
+		uint32_t seg;
+		uint32_t index;
+		ImVec2 center;
+		enum {
+			START ,
+			MIDDLE ,
+			END
+		} mode;
+	};
+
+	// Description for mouse locations in the sequencer window
+	enum class E_MousePosType
+	{
+		NONE ,
+		TRACK ,
+		SEGMENT ,
+		POINT
+	};
+	struct T_MousePos
+	{
+		E_MousePosType type;
+		uint32_t index;
+	};
+
+	// Type of sub-windows
+	enum E_SubWindow {
+		SW_NONE ,
+		SW_CURVE_SELECTOR ,
+		SW_OVERRIDE_SELECTOR ,
+	};
+
 	// Make sure all displayed curves/inputs/overrides still exist
 	void checkSelectedCurves( ) noexcept;
 	void displayToolbar( ) noexcept;
@@ -150,18 +214,23 @@ struct T_SyncViewImpl_
 	void computeMetrics( float innerWidth ) noexcept;
 	void sequencerWidget( ) noexcept;
 	void sequencerHeader( ImRect const& bb ) noexcept;
-	bool sequencerBody( ImRect const& bb ) noexcept;
+	void sequencerBody( ImRect const& bb ) noexcept;
-	bool sequencerTracks(
+	void sequencerTracks(
 			float& hue ,
 			ImRect& bb ,
 			ImRect const& container ) noexcept;
-	bool sequencerTrack(
+	void sequencerTrack(
 			float& hue ,
 			ImRect const& bb ,
 			ImRect const& container ,
 			T_String const& name ,
 			T_SyncCurve const* curve ) noexcept;
 
+	void displayTooltips(
+			const float time ) noexcept;
+
+	T_MousePos getMousePos( ) const noexcept;
+
 	void displayCurveSelectorWindow( ) noexcept;
 	void displayCurveSelector( ) noexcept;
 	void displayOverrideSelector( ) noexcept;
@@ -191,19 +260,21 @@ struct T_SyncViewImpl_
 	float totalPixels;
 	float startPixel;
 
+	// Track display
+	T_Array< T_TrackDisplay > dspTracks;
+	T_Array< T_TrackSegDisplay > dspSegments;
+	T_Array< T_TrackPointDisplay > dspPoints;
+
 	// Zoom area selection
 	bool zoomInProgress{ false };
 	bool justZoomed{ false };
 	float firstZoomPixel;
 	float curZoomPixel;
 
-	// Curve display / edition
+	// Sub-windows
-	enum E_SubWindow {
-		SW_NONE ,
-		SW_CURVE_SELECTOR ,
-		SW_OVERRIDE_SELECTOR ,
-	};
 	E_SubWindow sub{ SW_NONE };
+
+	// Curve selection
 	T_KeyValueTable< T_String , bool > sCurves;
 	T_Set< T_String > sOverrides;
 	T_String curveFinder;
@@ -387,17 +458,13 @@ void T_SyncViewImpl_::sequencerWidget( ) noexcept
 		sequencerHeader( bbHeader );
 		PopID( );
 	}
-	bool mouseConsumed{ false };
 	if ( bbDisplay.Min.y < bbDisplay.Max.y && ItemAdd( bbDisplay , dspId ) ) {
 		PushID( dspId );
-		mouseConsumed = sequencerBody( bbDisplay );
+		sequencerBody( bbDisplay );
 		PopID( );
 	}
 	PopID( );
-	if ( mouseConsumed ) {
+	EndGroup( );
-		EndGroup( );
-		return;
-	}
 
 	auto& io( GetIO( ) );
 	if ( hovered && ( io.MouseDown[ 0 ] || io.MouseDown[ 1 ] ) ) {
@@ -406,46 +473,56 @@ void T_SyncViewImpl_::sequencerWidget( ) noexcept
 	}
 
 	const bool active( GetCurrentContext( )->ActiveId == seqId );
-	if ( hovered && !active && io.MouseWheel != 0 ) {
+	auto& sync( Common::Sync( ) );
-		zoomLevel = ImSaturate( zoomLevel + .025 * io.MouseWheel );
+	const float mPixels{ io.MousePos.x - bbAll.Min.x + startPixel };
-	} else if ( active ) {
+	const float mTime{ mPixels * sync.duration( ) / totalPixels };
-		if ( io.MouseDown[ 0 ] ) {
+
-			const float p{ io.MousePos.x - bbAll.Min.x + startPixel };
+	if ( !active ) {
-			auto& sync( Common::Sync( ) );
+		if ( !hovered ) {
-			sync.setTime( p * Common::Sync( ).duration( ) / totalPixels );
+			return;
 		}
-		if ( io.MouseDown[ 1 ] ) {
+		if ( io.MouseWheel != 0 ) {
-			const float p{ io.MousePos.x - bbAll.Min.x + startPixel };
+			zoomLevel = ImSaturate( zoomLevel + .025 * io.MouseWheel );
-			if ( !zoomInProgress ) {
-				firstZoomPixel = p;
-				zoomInProgress = true;
-			}
-			curZoomPixel = p;
-		} else if ( zoomInProgress ) {
-			zoomInProgress = false;
-			justZoomed = true;
-			const auto zMin{ std::min( firstZoomPixel , curZoomPixel ) } ,
-			      zMax{ std::max( firstZoomPixel , curZoomPixel ) } ,
-			      diff{ zMax - zMin };
-			if ( diff > 4 ) {
-				auto& sync( Common::Sync( ) );
-				const float u( sync.durationUnits( ) );
-				startPos = zMin * u / totalPixels;
-				if ( ( width - 2.f ) / u >= BarWidth ) {
-					zoomLevel = 0;
-				} else {
-					const auto length{ std::min( u , diff * u / totalPixels ) };
-					const auto ppu{ std::min( ( width - 2 ) / length , BarWidth ) };
-					zoomLevel = ( ppu - BarWidth ) / ( BarWidth - width / u ) + 1;
-				}
-			}
 		}
-		if ( !( io.MouseDown[ 0 ] || io.MouseDown[ 1 ] ) ) {
+		if ( bbDisplay.Contains( io.MousePos ) ) {
-			ClearActiveID( );
+			displayTooltips( mTime );
+		}
+		return;
+	}
+
+	if ( io.MouseDown[ 0 ] ) {
+		sync.setTime( mTime );
+	}
+
+	if ( io.MouseDown[ 1 ] ) {
+		if ( !zoomInProgress ) {
+			firstZoomPixel = mPixels;
+			zoomInProgress = true;
+		}
+		curZoomPixel = mPixels;
+
+	} else if ( zoomInProgress ) {
+		zoomInProgress = false;
+		justZoomed = true;
+		const auto zMin{ std::min( firstZoomPixel , curZoomPixel ) } ,
+		      zMax{ std::max( firstZoomPixel , curZoomPixel ) } ,
+		      diff{ zMax - zMin };
+		if ( diff > 4 ) {
+			const float u( sync.durationUnits( ) );
+			startPos = zMin * u / totalPixels;
+			if ( ( width - 2.f ) / u >= BarWidth ) {
+				zoomLevel = 0;
+			} else {
+				const auto length{ std::min( u , diff * u / totalPixels ) };
+				const auto ppu{ std::min( ( width - 2 ) / length , BarWidth ) };
+				zoomLevel = ( ppu - BarWidth ) / ( BarWidth - width / u ) + 1;
+			}
 		}
 	}
 
-	EndGroup( );
+	if ( !( io.MouseDown[ 0 ] || io.MouseDown[ 1 ] ) ) {
+		ClearActiveID( );
+	}
 }
 
 void T_SyncViewImpl_::computeMetrics(
@@ -526,11 +603,7 @@ void T_SyncViewImpl_::sequencerHeader(
 		const ImVec2 taEnd{ taStart + ImVec2{ barWidth , inner.Max.y - inner.Min.y } };
 
 		const float time{ bar * timePerBar };
-		const float msf{ fmod( time , 1.f ) };
+		TimeToString_( buffer , sizeof( buffer ) , time );
-		const float sf{ fmod( time - msf , 60.f ) };
-		snprintf( buffer , sizeof( buffer ) , "%02d:%02d.%03d" ,
-				uint32_t( ( time - msf - sf ) / 60.f ) ,
-				uint32_t( sf ) , uint32_t( msf * 1000.f ) );
 		RenderTextClipped( taStart , taEnd , buffer , nullptr , nullptr ,
 				ImVec2{ .5f , .05f + ( ( bar % 2 ) ? .9f : 0.f ) } , &inner );
 		pos += barWidth;
@@ -540,7 +613,7 @@ void T_SyncViewImpl_::sequencerHeader(
 	PopFont( );
 }
 
-bool T_SyncViewImpl_::sequencerBody(
+void T_SyncViewImpl_::sequencerBody(
 		ImRect const& bb ) noexcept
 {
 	using namespace ImGui;
@@ -574,7 +647,6 @@ bool T_SyncViewImpl_::sequencerBody(
 	}
 
 	// Display the curve / override controls
-	bool mouseConsumed{ false };
 	if ( sCurves.size( ) != 0 ) {
 
 		ImRect subBb{ inner };
@@ -585,7 +657,7 @@ bool T_SyncViewImpl_::sequencerBody(
 		float hue{ 0.12f };
 
 		// TODO: display overrides
-		mouseConsumed = sequencerTracks( hue , subBb , inner ) || mouseConsumed;
+		sequencerTracks( hue , subBb , inner );
 	}
 
 	if ( cursorPos >= 0 && cursorPos <= inner.GetWidth( ) ) {
@@ -594,18 +666,14 @@ bool T_SyncViewImpl_::sequencerBody(
 				ImVec2{ inner.Min.x + cursorPos , inner.Max.y - 1 } ,
 				0xffffffff );
 	}
-
-	return mouseConsumed;
 }
-
+void T_SyncViewImpl_::sequencerTracks(
-bool T_SyncViewImpl_::sequencerTracks(
 		float& hue ,
 		ImRect& subBb ,
 		ImRect const& container ) noexcept
 {
 	auto& sync{ Common::Sync( ) };
 	const auto nc{ sCurves.size( ) };
-	bool mouseConsumed{ false };
 	for ( auto i = 0u ; i < nc ; i ++ ) {
 		if ( sCurves.values( )[ i ] ) {
 			continue;
@@ -613,31 +681,38 @@ bool T_SyncViewImpl_::sequencerTracks(
 
 		auto const& name{ sCurves.keys( )[ i ] };
 		auto* const curve{ sync.getCurve( name ) };
-		mouseConsumed = sequencerTrack( hue , subBb , container , name , curve )
+		sequencerTrack( hue , subBb , container , name , curve );
-			|| mouseConsumed;
 		subBb.Min.y += TrackHeight + 2 * TrackPadding;
 		subBb.Max.y += TrackHeight + 2 * TrackPadding;
 		hue = fmodf( hue + .17f , 1.f );
 	}
-	return mouseConsumed;
 }
 
-bool T_SyncViewImpl_::sequencerTrack(
+void T_SyncViewImpl_::sequencerTrack(
 		float& hue ,
 		ImRect const& bb ,
 		ImRect const& container ,
-		T_String const& name ,
+		T_String const& id ,
 		T_SyncCurve const* curve ) noexcept
 {
-	using namespace ImGui;
+	// Don't display if the track is fully hidden
 	if ( !container.Overlaps( bb ) ) {
-		return false;
+		return;
 	}
-	auto* const dl{ GetWindowDrawList( ) };
+
+	// Add track display record
+	const auto dTrackIdx{ dspTracks.size( ) };
+	auto& dTrack{ dspTracks.addNew( ) };
+	dTrack.id = id;
+	dTrack.isOverride = false;
+	dTrack.dispSegs = 0;
+	dTrack.firstSeg = dspSegments.size( );
+	dTrack.area = bb;
 
 	// Compute colors
+	using namespace ImGui;
 	const auto bgColor{ ColorHSVAToU32( hue , .25f , 1.f , .25f ) } ,
-	      borderColor{ ColorHSVAToU32( hue , .12f , 1.f , 1.f ) };
+	      borderColor{ ColorHSVAToU32( hue , .88f , 1.f , 1.f ) };
 	const uint32_t segColors[ 2 ] = {
 	      ColorHSVAToU32( hue - .03f , .4f , 1.f , 1.f ) ,
 	      ColorHSVAToU32( hue + .03f , .4f , 1.f , 1.f ) ,
@@ -650,6 +725,7 @@ bool T_SyncViewImpl_::sequencerTrack(
 		ImVec2{ ImFloor( bb.Max.x ) - 1 ,
 			ImFloor( ImMin( container.Max.y , bb.Max.y ) ) }
 	};
+	auto* const dl{ GetWindowDrawList( ) };
 	dl->AddRectFilled( bar.Min , bar.Max , bgColor );
 	if ( container.Contains( bb.GetTL( ) ) ) {
 		dl->AddLine( bar.GetTL( ) , bar.GetTR( ) , borderColor );
@@ -667,13 +743,6 @@ bool T_SyncViewImpl_::sequencerTrack(
 	}
 	dl->PushClipRect( bar.Min , bar.Max );
 
-#if 0
-	// We'll need to display the right pop-up
-	auto& io( GetIO( ) );
-	const auto mPos{ io.MousePos };
-	bool mousePosUsed{ false } , mouseConsumed{ false };
-#endif
-
 	// If there's a curve, go through all segments
 	const auto units{ Common::Sync( ).durationUnits( ) };
 	const auto nSeg{ curve ? curve->segments.size( ) : 0u };
@@ -699,6 +768,17 @@ bool T_SyncViewImpl_::sequencerTrack(
 			continue;
 		}
 
+		// Add segment to displayed list
+		auto dSegIdx{ dspSegments.size( ) };
+		auto& dSeg{ dspSegments.addNew( ) };
+		dSeg.area = segFull;
+		dSeg.track = dTrackIdx;
+		dSeg.seg = i;
+		dSeg.dispPoints = 0;
+		dSeg.firstPoint = dspPoints.size( );
+		dTrack.dispSegs ++;
+
+		// Draw segment
 		const ImRect segBar{
 			ImVec2{ ImMax( bar.Min.x , segFull.Min.x ) , segFull.Min.y } ,
 			ImVec2{ ImMin( bar.Max.x , segFull.Max.x ) , segFull.Max.y }
@@ -706,73 +786,147 @@ bool T_SyncViewImpl_::sequencerTrack(
 		dl->AddRectFilled( segBar.Min , segBar.Max , color );
 		dl->PushClipRect( segBar.Min , segBar.Max );
 
+		// Handle points
 		const auto nd{ seg.durations.size( ) };
-		const auto radius{ ( TrackHeight - 2.f ) * .5f };
+		const auto ym{ bb.Min.y + PointRadius + 1 };
-		const auto ym{ bb.Min.y + radius + 1 };
 		auto cDur{ 0 };
 		for ( auto j = 0u ; j < nd + 1 ; j ++ ) {
 			const ImVec2 ctr{
 				std::roundf( xStart + cDur * totalPixels / units ) ,
 				ym
 			};
-			dl->AddCircleFilled( ctr , radius , 0x7f000000 ); // XXX color
+			dl->AddCircleFilled( ctr , PointRadius , 0x7f000000 ); // XXX color
-#if 0
-			if ( ImLengthSqr( mPos - ctr ) <= radius * radius ) {
-				if ( ! mousePosUsed ) {
-					BeginTooltip( );
-					stringBuffer.clear( ) << name << " (input)\nIn "
-						<< seg.type << " segment\nAt " << segDur
-						<< " units\nValue: " << seg.values[ j ];
-					Text( "%s" , stringBuffer.data( ) );
-					EndTooltip( );
-					mousePosUsed = true;
-				}
-				if ( !mouseConsumed && io.MouseDown[ 0 ] ) {
-					printf( "fuck yeah!\n" );
-					mouseConsumed = true;
-				}
-			}
-#endif
 			cDur += j < nd ? seg.durations[ j ] : 0;
+
+			// Add point record
+			auto& dPoint{ dspPoints.addNew( ) };
+			dPoint.center = ctr;
+			dPoint.index = j;
+			dPoint.mode =
+				j == 0 ? T_TrackPointDisplay::START : (
+				j == nd ? T_TrackPointDisplay::END :
+				T_TrackPointDisplay::MIDDLE );
+			dPoint.seg = dSegIdx;
+			dSeg.dispPoints ++;
 		}
 		dl->PopClipRect( );
-
-#if 0
-		if ( segBar.Contains( mPos ) && !mousePosUsed ) {
-			BeginTooltip( );
-			stringBuffer.clear( ) << name << " (input)\nIn "
-				<< seg.type << " segment\nDuration: "
-				<< segDur << " units (from " << ( segStart - segDur )
-				<< " to " << ( segStart - 1 )
-				<< ")\n";
-			Text( "%s" , stringBuffer.data( ) );
-			EndTooltip( );
-			mousePosUsed = true;
-		}
-#endif
 	}
 
-#if 0
-	if ( bar.Contains( mPos ) && !mousePosUsed ) {
-		const float time{ ( io.MousePos.x - container.Min.x + startPixel )
-			* units / totalPixels };
-		const float msf{ fmod( time , 1.f ) };
-		const float sf{ fmod( time - msf , 60.f ) };
-		char buffer[ 12 ];
-		snprintf( buffer , sizeof( buffer ) , "%02d:%02d.%03d" ,
-				uint32_t( ( time - msf - sf ) / 60.f ) ,
-				uint32_t( sf ) , uint32_t( msf * 1000.f ) );
-		BeginTooltip( );
-		stringBuffer.clear( ) << name << " (input)\nNot defined at "
-			<< buffer << '\0';
-		Text( "%s" , stringBuffer.data( ) );
-		EndTooltip( );
-		mousePosUsed = true;
-	}
-#endif
 	dl->PopClipRect( );
+}
 
-	return false;
+/*----------------------------------------------------------------------------*/
+
+void T_SyncViewImpl_::displayTooltips(
+		const float time ) noexcept
+{
+	auto mp{ getMousePos( ) };
+	if ( mp.type == E_MousePosType::NONE ) {
+		return;
+	}
+
+	// Track / segment / point from mouse info
+	auto const& track( [&](){
+		if ( mp.type == E_MousePosType::POINT ) {
+			return dspTracks[ dspSegments[
+				dspPoints[ mp.index ].seg ].track ];
+		}
+		if ( mp.type == E_MousePosType::SEGMENT ) {
+			return dspTracks[ dspSegments[ mp.index ].track ];
+		}
+		return dspTracks[ mp.index ];
+	}() );
+	auto const* const seg( [&]() -> T_TrackSegDisplay const* {
+		if ( mp.type == E_MousePosType::TRACK ) {
+			return nullptr;
+		}
+		if ( mp.type == E_MousePosType::SEGMENT ) {
+			return &dspSegments[ mp.index ];
+		}
+		return &dspSegments[ dspPoints[ mp.index ].seg ];
+	}() );
+	auto const* const point( [&]() -> T_TrackPointDisplay const* {
+		if ( mp.type != E_MousePosType::POINT ) {
+			return nullptr;
+		}
+		return &dspPoints[ mp.index ];
+	}() );
+
+	// Curve from track
+	T_SyncCurve const* const curve{ Common::Sync( ).getCurve( track.id ) };
+	assert( mp.type == E_MousePosType::TRACK || curve != nullptr );
+
+	// Time offset
+	const float dTime( [&](){
+		if ( point ) {
+			auto tDur{ .0f };
+			printf( "segseg %d\n" , seg->seg );
+			for ( auto i = 0u ; i <= seg->seg ; i ++ ) {
+				auto const& s{ curve->segments[ i ] };
+				auto const nd{ i == seg->seg
+					? point->index
+					: s.durations.size( ) };
+				printf( "s %d -> nd %d\n" , i , nd );
+				for ( auto j = 0u ; j < nd ; j ++ ) {
+					tDur += s.durations[ j ];
+				}
+			}
+			return tDur * Common::Sync( ).durationUnitSize( );
+		}
+		return time;
+	}() );
+	char buffer[ 12 ];
+	TimeToString_( buffer , sizeof( buffer ) , dTime );
+
+	const float value{ point ? curve->segments[ seg->seg ].values[ point->index ] : -.666f }; // FIXME
+
+	stringBuffer.clear( ) << track.id << " (input)\n";
+	if ( mp.type == E_MousePosType::TRACK ) {
+		stringBuffer << "No segment";
+	} else {
+		auto const& s{ curve->segments[ seg->seg ] };
+		if ( mp.type == E_MousePosType::SEGMENT ) {
+			stringBuffer << "Segment type: " << s.type;
+		} else {
+			stringBuffer << "On " << s.type << " segment, index " << point->index;
+		}
+	}
+	stringBuffer << "\nTime: " << buffer << "\nValue: " << value;
+
+	using namespace ImGui;
+	stringBuffer << '\0';
+	BeginTooltip( );
+	Text( "%s" , stringBuffer.data( ) );
+	EndTooltip( );
+}
+
+/*----------------------------------------------------------------------------*/
+
+T_SyncViewImpl_::T_MousePos T_SyncViewImpl_::getMousePos( ) const noexcept
+{
+	auto const& mp{ ImGui::GetIO( ).MousePos };
+	for ( auto i = 0u ; i < dspTracks.size( ) ; i ++ ) {
+		auto const& track{ dspTracks[ i ] };
+		if ( !track.area.Contains( mp ) ) {
+			continue;
+		}
+		for ( auto j = 0u ; j < track.dispSegs ; j ++ ) {
+			auto const& seg{ dspSegments[ track.firstSeg + j ] };
+			if ( !seg.area.Contains( mp ) ) {
+				continue;
+			}
+			for ( auto k = 0u ; k < seg.dispPoints ; k ++ ) {
+				auto const& p{ dspPoints[ seg.firstPoint + k ] };
+				if ( ImLengthSqr( mp - p.center ) <= PointRadiusSqr ) {
+					return T_MousePos{ E_MousePosType::POINT ,
+						seg.firstPoint + k };
+				}
+			}
+			return T_MousePos{ E_MousePosType::SEGMENT , i };
+		}
+		return T_MousePos{ E_MousePosType::TRACK , i };
+	}
+	return T_MousePos{ E_MousePosType::NONE , 0 };
 }
 
 /*----------------------------------------------------------------------------*/