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  • Committer: Bazaar Package Importer
  • Author(s): Cédric Delfosse
  • Date: 2008-05-19 21:28:23 UTC
  • mfrom: (3.1.5 intrepid)
  • Revision ID: james.westby@ubuntu.com-20080519212823-m5nfiuntxstxzxj7
Tags: 0.9.1-4
http://bugs.debian.org/479906
Add libxcursor-dev, libxfixes-dev, libxinerama-dev, libqt4-opengl-dev to
build-deps (Closes: #479906)

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src/loadingbar.cpp
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/*
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 * Stellarium
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 * Copyright (C) 2005 Fabien Chereau
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 *
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 * This program is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU General Public License
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 * as published by the Free Software Foundation; either version 2
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 * of the License, or (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
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 */
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#include "loadingbar.h"
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LoadingBar::LoadingBar(Projector* _prj, float font_size, const string& font_name, const string&  splash_tex, 
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        int screenw, int screenh, const wstring& extraTextString, float extraTextSize, 
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        float extraTextPosx, float extraTextPosy) :
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        prj(_prj), width(512), height(512), barwidth(400), barheight(10), extraText(extraTextString)
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{
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        splashx = prj->getViewportPosX() + (screenw - width)/2;
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        splashy = prj->getViewportPosY() + (screenh - height)/2;
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        barx = prj->getViewportPosX() + (screenw - barwidth)/2;
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        bary = splashy + 34;
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        barfont = new s_font(font_size, font_name);
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        extraTextFont = new s_font(extraTextSize, font_name);
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        assert(barfont);
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        assert(extraTextFont);
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        if (!splash_tex.empty()) splash = new s_texture(splash_tex, TEX_LOAD_TYPE_PNG_ALPHA);
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        extraTextPos.set(extraTextPosx, extraTextPosy);
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}
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LoadingBar::~LoadingBar()
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{
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        delete barfont;
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        delete extraTextFont;
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        if (splash) delete splash;
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        barfont = NULL;
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}
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void LoadingBar::Draw(float val)
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{
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        // percent complete bar only draws in 2d mode
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        prj->set_orthographic_projection();
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        // Draw the splash screen if available
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        if (splash)
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        {
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                glEnable(GL_BLEND);
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                glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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                glEnable(GL_TEXTURE_2D);
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                glColor3f(1, 1, 1);
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                glDisable(GL_CULL_FACE);
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                glBindTexture(GL_TEXTURE_2D, splash->getID());
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                glBegin(GL_QUADS);
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                        glTexCoord2i(0, 0);             // Bottom Left
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                        glVertex3f(splashx, splashy, 0.0f);
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                        glTexCoord2i(1, 0);             // Bottom Right
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                        glVertex3f(splashx + width, splashy, 0.0f);
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                        glTexCoord2i(1, 1);             // Top Right
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                        glVertex3f(splashx + width, splashy + height, 0.0f);
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                        glTexCoord2i(0, 1);             // Top Left
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                        glVertex3f(splashx, splashy + height, 0.0f);
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                glEnd();
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        }
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        glDisable(GL_BLEND);
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        glDisable(GL_TEXTURE_2D);
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        // black out background of text for redraws (so can keep sky unaltered)
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        glColor3f(0, 0, 0);
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        glBegin(GL_TRIANGLE_STRIP);
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                glTexCoord2i(1, 0);             // Bottom Right
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                glVertex3f(barx + barwidth, bary-17, 0.0f);
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                glTexCoord2i(0, 0);             // Bottom Left
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                glVertex3f(barx, bary-17, 0.0f);
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                glTexCoord2i(1, 1);             // Top Right
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                glVertex3f(barx + barwidth, bary-5, 0.0f);
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                glTexCoord2i(0, 1);             // Top Left
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                glVertex3f(barx, bary-5, 0.0f);
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        glEnd();
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        glColor3f(0.8, 0.8, 1);
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        glBegin(GL_TRIANGLE_STRIP);
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                glTexCoord2i(1, 0);             // Bottom Right
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                glVertex3f(barx + barwidth, bary + barheight, 0.0f);
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                glTexCoord2i(0, 0);             // Bottom Left
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                glVertex3f(barx, bary + barheight, 0.0f);
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                glTexCoord2i(1, 1);             // Top Right
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                glVertex3f(barx + barwidth, bary, 0.0f);
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                glTexCoord2i(0, 1);             // Top Left
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                glVertex3f(barx, bary, 0.0f);
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        glEnd();
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        glColor3f(0.4f, 0.4f, 0.6f);
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        glBegin(GL_TRIANGLE_STRIP);
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                glTexCoord2i(1, 0);             // Bottom Right
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                glVertex3f(-1 + barx + barwidth * val, bary + barheight - 1, 0.0f);
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                glTexCoord2i(0, 0);             // Bottom Left
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                glVertex3f(1 + barx, bary + barheight - 1, 0.0f);
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                glTexCoord2i(1, 1);             // Top Right
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                glVertex3f(-1 + barx + barwidth * val, bary + 1, 0.0f);
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                glTexCoord2i(0, 1);             // Top Left
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                glVertex3f(1 + barx, bary + 1, 0.0f);
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        glEnd();
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        glColor3f(1, 1, 1);
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        glEnable(GL_TEXTURE_2D);
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        barfont->print(barx, bary-5, message);
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        extraTextFont->print(splashx + extraTextPos[0], splashy + extraTextPos[1], extraText);
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        SDL_GL_SwapBuffers();   // And swap the buffers
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        prj->reset_perspective_projection();
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}