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-rw-r--r--src/menu/UMenuBackgroundFade.pas176
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diff --git a/src/menu/UMenuBackgroundFade.pas b/src/menu/UMenuBackgroundFade.pas
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--- a/src/menu/UMenuBackgroundFade.pas
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-{* UltraStar Deluxe - Karaoke Game
- *
- * UltraStar Deluxe is the legal property of its developers, whose names
- * are too numerous to list here. Please refer to the COPYRIGHT
- * file distributed with this source distribution.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; see the file COPYING. If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- *
- * $URL$
- * $Id$
- *}
-
-unit UMenuBackgroundFade;
-
-interface
-
-{$IFDEF FPC}
- {$MODE Delphi}
-{$ENDIF}
-
-{$I switches.inc}
-
-uses
- UThemes,
- UTexture,
- UMenuBackground,
- UPath;
-
-//TMenuBackgroundFade - Background Fade In for Overlay screens
-//--------
-
-type
- TMenuBackgroundFade = class (TMenuBackground)
- private
- Tex: TTexture;
- Color: TRGB;
- Alpha: real;
-
- useTexture: boolean;
-
- FadeTime: cardinal;
- public
- constructor Create(const ThemedSettings: TThemeBackground); override;
- procedure OnShow; override;
- procedure Draw; override;
- destructor Destroy; override;
- end;
-
-const
- FADEINTIME = 1500; //Time the bg fades in
-
-implementation
-uses
- sdl,
- gl,
- glext,
- USkins,
- UCommon,
- UGraphic;
-
-constructor TMenuBackgroundFade.Create(const ThemedSettings: TThemeBackground);
-var
- texFilename: IPath;
-begin
- inherited;
- FadeTime := 0;
-
- Color := ThemedSettings.Color;
- Alpha := ThemedSettings.Alpha;
- if (Length(ThemedSettings.Tex) > 0) then
- begin
- texFilename := Skin.GetTextureFileName(ThemedSettings.Tex);
- Tex := Texture.GetTexture(texFilename, TEXTURE_TYPE_PLAIN);
-
- UseTexture := (Tex.TexNum <> 0);
- end
- else
- UseTexture := false;
-
- if (not UseTexture) then
- FreeandNil(Tex);
-end;
-
-destructor TMenuBackgroundFade.Destroy;
-begin
- //Why isn't there any Tex.free method?
- {if UseTexture then
- FreeandNil(Tex); }
- inherited;
-end;
-
-procedure TMenuBackgroundFade.OnShow;
-begin
- FadeTime := SDL_GetTicks;
-end;
-
-procedure TMenuBackgroundFade.Draw;
-var
- Progress: real;
-begin
- if FadeTime = 0 then
- Progress := Alpha
- else
- Progress := Alpha * (SDL_GetTicks - FadeTime) / FADEINTIME;
-
- if Progress > Alpha then
- begin
- FadeTime := 0;
- Progress := Alpha;
- end;
-
- if (UseTexture) then
- begin //Draw Texture to Screen
- if (ScreenAct = 1) then //Clear just once when in dual screen mode
- glClear(GL_DEPTH_BUFFER_BIT);
-
- glEnable(GL_TEXTURE_2D);
- glEnable(GL_BLEND);
- glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-
- glColorRGB(Color, Progress);
- glBindTexture(GL_TEXTURE_2D, Tex.TexNum);
-
- glBegin(GL_QUADS);
- glTexCoord2f(Tex.TexX1*Tex.TexW, Tex.TexY1*Tex.TexH);
- glVertex2f(0, 0);
-
- glTexCoord2f(Tex.TexX1*Tex.TexW, Tex.TexY2*Tex.TexH);
- glVertex2f(0, 600);
-
- glTexCoord2f(Tex.TexX2*Tex.TexW, Tex.TexY2*Tex.TexH);
- glVertex2f(800, 600);
-
- glTexCoord2f(Tex.TexX2*Tex.TexW, Tex.TexY1*Tex.TexH);
- glVertex2f(800, 0);
- glEnd;
-
- glDisable(GL_BLEND);
- glDisable(GL_TEXTURE_2D);
- end
- else
- begin //Clear Screen w/ progress Alpha + Color
- if (ScreenAct = 1) then //Clear just once when in dual screen mode
- glClear(GL_DEPTH_BUFFER_BIT);
-
- glDisable(GL_TEXTURE_2D);
- glEnable(GL_BLEND);
- glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-
- glColorRGB(Color, Progress);
-
- glBegin(GL_QUADS);
- glVertex2f(0, 0);
- glVertex2f(0, 600);
- glVertex2f(800, 600);
- glVertex2f(800, 0);
- glEnd;
-
- glDisable(GL_BLEND);
- end;
-end;
-
-end.