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unit UMenuButton;
interface
uses TextGL, UTexture, OpenGL12, UMenuText;
type
TButton = class
private
SelectBool: Boolean;
constructor Create(); overload;
public
Text: Array of TText;
Texture: TTexture; // Button Screen position and size
Texture2: TTexture; // second texture only used for fading full resolution covers
// Texture2Blend: real; // blending factor for second texture (0=invisible, 1=visible)
// now uses alpha
DeselectType: integer; // not used yet
Visible: boolean;
//Reflection Mod
Reflection: boolean;
Reflectionspacing: Real;
Selectable: boolean;
SelectColR: real;
SelectColG: real;
SelectColB: real;
SelectInt: real;
SelectTInt: real;
DeselectColR: real;
DeselectColG: real;
DeselectColB: real;
DeselectInt: real;
DeselectTInt: real;
procedure SetY(Value: real);
procedure SetSelect(Value: Boolean);
property X: real read Texture.x write Texture.x;
property Y: real read Texture.y write SetY;
property Z: real read Texture.z write Texture.z;
property W: real read Texture.w write Texture.w;
property H: real read Texture.h write Texture.h;
property Selected: Boolean read SelectBool write SetSelect;
procedure Draw;
constructor Create(Textura: TTexture); overload;
destructor Destroy; override;
end;
implementation
uses UDrawTexture, SysUtils;
procedure TButton.SetY(Value: real);
var
dY: real;
T: integer; // text
begin
dY := Value - Texture.y;
Texture.y := Value;
for T := 0 to High(Text) do
Text[T].Y := Text[T].Y + dY;
end;
procedure TButton.SetSelect(Value : Boolean);
var
T: integer;
begin
SelectBool := Value;
if (Value) then begin
Texture.ColR := SelectColR;
Texture.ColG := SelectColG;
Texture.ColB := SelectColB;
Texture.Int := SelectInt;
Texture2.ColR := SelectColR;
Texture2.ColG := SelectColG;
Texture2.ColB := SelectColB;
Texture2.Int := SelectInt;
for T := 0 to High(Text) do
Text[T].Int := SelectTInt;
end else begin
Texture.ColR := DeselectColR;
Texture.ColG := DeselectColG;
Texture.ColB := DeselectColB;
Texture.Int := DeselectInt;
Texture2.ColR := DeselectColR;
Texture2.ColG := DeselectColG;
Texture2.ColB := DeselectColB;
Texture2.Int := DeselectInt;
for T := 0 to High(Text) do
Text[T].Int := DeselectTInt;
end;
end;
constructor TButton.Create();
begin
inherited Create;
// We initialize all to 0, nil or false
Visible := true;
SelectBool := false;
DeselectType := 0;
Selectable := true;
//Reflection Mod
Reflection := true;
// Default
// SelectInt := 1;
// DeselectInt := 0.5;
{ SelectColR := 0.5;
SelectColG := 0.75;
SelectColB := 0;
SelectInt := 1;
SelectTInt := 1;
DeselectColR := 1;
DeselectColG := 1;
DeselectColB := 1;
DeselectInt := 0.5;
DeselectTInt := 1;}
SelectColR := 1;
SelectColG := 1;
SelectColB := 1;
SelectInt := 1;
SelectTInt := 1;
DeselectColR := 1;
DeselectColG := 1;
DeselectColB := 1;
DeselectInt := 0.5;
DeselectTInt := 1;
end;
// ***** Public methods ****** //
procedure TButton.Draw;
var
T: integer;
begin
if Visible then begin
DrawTexture(Texture);
if Texture2.Alpha > 0 then begin
Texture2.ScaleW := Texture.ScaleW;
Texture2.ScaleH := Texture.ScaleH;
Texture2.X := Texture.X;
Texture2.Y := Texture.Y;
Texture2.W := Texture.W;
Texture2.H := Texture.H;
Texture2.ColR := Texture.ColR;
Texture2.ColG := Texture.ColG;
Texture2.ColB := Texture.ColB;
Texture2.Int := Texture.Int;
Texture2.Z := Texture.Z;
DrawTexture(Texture2);
end;
//Reflection Mod
if (Reflection) then // Draw Reflections
begin
with Texture do
begin
//Bind Tex and GL Attributes
glEnable(GL_TEXTURE_2D);
glEnable(GL_BLEND);
glDepthRange(0, 10);
glDepthFunc(GL_LEQUAL);
glEnable(GL_DEPTH_TEST);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glBindTexture(GL_TEXTURE_2D, TexNum);
//Draw
glBegin(GL_QUADS);//Top Left
glColor4f(ColR * Int, ColG * Int, ColB * Int, Alpha-0.3);
glTexCoord2f(TexX1*TexW, TexY2*TexH);
glVertex3f(x, y+h*scaleH+ Reflectionspacing, z);
//Bottom Left
glColor4f(ColR * Int, ColG * Int, ColB * Int, 0);
glTexCoord2f(TexX1*TexW, {TexY1*TexH*}0.5);
glVertex3f(x, y+h*scaleH + h*scaleH/2 + Reflectionspacing, z);
//Bottom Right
glColor4f(ColR * Int, ColG * Int, ColB * Int, 0);
glTexCoord2f(TexX2*TexW, {TexY1*TexH*}0.5);
glVertex3f(x+w*scaleW, y+h*scaleH + h*scaleH/2 + Reflectionspacing, z);
//Top Right
glColor4f(ColR * Int, ColG * Int, ColB * Int, Alpha-0.3);
glTexCoord2f(TexX2*TexW, TexY2*TexH);
glVertex3f(x+w*scaleW, y+h*scaleH + Reflectionspacing, z);
glEnd;
glDisable(GL_TEXTURE_2D);
glDisable(GL_DEPTH_TEST);
glDisable(GL_BLEND);
end;
end;
for T := 0 to High(Text) do begin
Text[T].Draw;
end;
end;
end;
// ***** ****** //
destructor TButton.Destroy;
begin
inherited;
end;
constructor TButton.Create(Textura: TTexture);
begin
Create();
Texture := Textura;
Texture.ColR := 0;
Texture.ColG := 0.5;
Texture.ColB := 0;
Texture.Int := 1;
end;
end.
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