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ui(spectrum): theme sample rate overlay

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This commit is contained in:
ew8bak
2026-08-05 16:07:25 +03:00
parent b70daa9dbf
commit a0f4b044db
2 changed files with 46 additions and 24 deletions
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SampleRateOverlay.pas
+45 -24
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@@ -13,7 +13,7 @@ unit SampleRateOverlay;
interface
uses
Classes, SysUtils, Controls, Graphics, Types, Math;
Classes, SysUtils, Controls, Graphics, Types, Math, AppTheme;
type
TSpanSelectEvent = procedure(SampleRate: Integer) of object;
@@ -35,6 +35,7 @@ type
FTop: Integer;
FWidth: Integer;
FHeight: Integer;
FTheme: TAppTheme;
FHitRects: array[0..10] of TRect; // [0]=hide button, [1..]=span buttons
FHitValues: array[0..10] of Integer; // 0=hide, else sample rate
@@ -76,6 +77,7 @@ type
procedure SetRatePresets(const Rates: array of Integer);
procedure SetRatePresetsDefault; // HPSDR 48k..1536k
procedure SetPanelHidden(Hidden: Boolean);
procedure SetTheme(const T: TAppTheme);
property Left: Integer read FLeft;
property Top: Integer read FTop;
property Width: Integer read FWidth;
@@ -97,9 +99,6 @@ const
PAD_Y = 4;
BTN_GAP = 3;
CLR_TEXT = TColor($00D8E6EE);
CLR_BTN_BDR = TColor($00685624);
procedure BlendRect(Target: TBitmap; const Rct: TRect; R, G, B, Alpha: Byte);
var
Y, X, InvA: Integer;
@@ -141,6 +140,16 @@ begin
end;
end;
procedure BlendColorRect(Target: TBitmap; const Rct: TRect;
Color: TColor; Alpha: Byte);
var
C: LongInt;
begin
C := ColorToRGB(Color);
BlendRect(Target, Rct, C and $FF, (C shr 8) and $FF,
(C shr 16) and $FF, Alpha);
end;
function SpanBtnWidth(const Name: string; C: TCanvas): Integer;
begin
C.Font.Name := 'Courier New';
@@ -160,6 +169,7 @@ begin
FHotIdx := -1;
FWidth := 320;
FHeight := SPAN_H + PAD_Y * 2;
FTheme := DarkTheme;
FCache := TBitmap.Create;
FCache.PixelFormat := pf32bit;
FCacheW := 0;
@@ -224,30 +234,34 @@ begin
if ContentW > W then ContentW := W;
FullR := Rect(OriginX, OriginY, OriginX + ContentW, OriginY + H);
BlendRect(Target, FullR, $14, $14, $14, 104);
BlendRect(Target, Rect(FullR.Left, FullR.Top, FullR.Right, FullR.Top + 1),
$80, $80, $80, 56);
BlendRect(Target, Rect(FullR.Left, FullR.Bottom - 1, FullR.Right, FullR.Bottom),
$00, $00, $00, 48);
BlendRect(Target, Rect(FullR.Left, FullR.Top, FullR.Left + 1, FullR.Bottom),
$80, $80, $80, 42);
BlendRect(Target, Rect(FullR.Right - 1, FullR.Top, FullR.Right, FullR.Bottom),
$00, $00, $00, 42);
BlendColorRect(Target, FullR, FTheme.Panel, 210);
BlendColorRect(Target,
Rect(FullR.Left, FullR.Top, FullR.Right, FullR.Top + 1),
FTheme.Border, 150);
BlendColorRect(Target,
Rect(FullR.Left, FullR.Bottom - 1, FullR.Right, FullR.Bottom),
FTheme.Border, 120);
BlendColorRect(Target,
Rect(FullR.Left, FullR.Top, FullR.Left + 1, FullR.Bottom),
FTheme.Border, 120);
BlendColorRect(Target,
Rect(FullR.Right - 1, FullR.Top, FullR.Right, FullR.Bottom),
FTheme.Border, 120);
X := OriginX + PAD_X;
HR := Rect(X, OriginY + PAD_Y, X + HIDE_W, OriginY + PAD_Y + SPAN_H);
IsHot := FHotIdx = 0;
if IsHot then BlendRect(Target, HR, $1D, $4B, $62, 206)
else BlendRect(Target, HR, $18, $3F, $54, 182);
if IsHot then BlendColorRect(Target, HR, FTheme.SpanActive, 230)
else BlendColorRect(Target, HR, FTheme.SpanNorm, 215);
C.Pen.Style := psSolid;
C.Pen.Color := CLR_BTN_BDR;
C.Pen.Color := FTheme.SpanBorder;
C.Brush.Style := bsClear;
C.Rectangle(HR);
C.Font.Size := 8;
if FPanelHidden then Cap := '>' else Cap := '<';
TW := C.TextWidth(Cap);
C.Font.Color := CLR_TEXT;
C.Font.Color := FTheme.SpanText;
C.Brush.Style := bsClear;
C.TextOut(HR.Left + (HIDE_W - TW) div 2,
HR.Top + (SPAN_H - TH) div 2, Cap);
@@ -262,16 +276,16 @@ begin
IsAct := FRates[I] = FCurrentRate;
IsHot := FHotIdx = I + 1;
if IsAct then BlendRect(Target, HR, $20, $5A, $78, 220)
else if IsHot then BlendRect(Target, HR, $1D, $4B, $62, 206)
else BlendRect(Target, HR, $18, $3F, $54, 182);
if IsAct then BlendColorRect(Target, HR, FTheme.SpanActive, 240)
else if IsHot then BlendColorRect(Target, HR, FTheme.SpanActive, 230)
else BlendColorRect(Target, HR, FTheme.SpanNorm, 215);
C.Pen.Style := psSolid;
C.Pen.Color := CLR_BTN_BDR;
C.Pen.Color := FTheme.SpanBorder;
C.Brush.Style := bsClear;
C.Rectangle(HR);
TW := C.TextWidth(FNames[I]);
C.Font.Color := CLR_TEXT;
C.Font.Color := FTheme.SpanText;
C.Brush.Style := bsClear;
C.TextOut(HR.Left + (BtnW - TW) div 2,
HR.Top + (SPAN_H - TH) div 2, FNames[I]);
@@ -470,7 +484,7 @@ begin
ContentW := Min(ContentW, W);
Target.SetSize(ContentW, H);
Target.Canvas.Brush.Color := TColor($00141414);
Target.Canvas.Brush.Color := FTheme.Panel;
Target.Canvas.Brush.Style := bsSolid;
Target.Canvas.Pen.Style := psClear;
Target.Canvas.FillRect(Rect(0, 0, ContentW, H));
@@ -480,7 +494,7 @@ begin
try
HitTarget.PixelFormat := pf32bit;
HitTarget.SetSize(Max(1, FLeft + ContentW), Max(1, FTop + H));
HitTarget.Canvas.Brush.Color := TColor($00141414);
HitTarget.Canvas.Brush.Color := FTheme.Panel;
HitTarget.Canvas.FillRect(Rect(0, 0, HitTarget.Width, HitTarget.Height));
DrawSelf(HitTarget, HitTarget.Canvas, FLeft, FTop, ContentW, H);
finally
@@ -575,4 +589,11 @@ begin
RequestInvalidate;
end;
procedure TSampleRateOverlay.SetTheme(const T: TAppTheme);
begin
FTheme := T;
FCacheDirty := True;
RequestInvalidate;
end;
end.