pgprogressbar.cpp

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/*
    ParaGUI - crossplatform widgetset
    Copyright (C) 2000,2001,2002  Alexander Pipelka
 
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.
 
    This library 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
    Library General Public License for more details.
 
    You should have received a copy of the GNU Library General Public
    License along with this library; if not, write to the Free
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
    Alexander Pipelka
    pipelka@teleweb.at
 
    Last Update:      $Author: mbickel $
    Update Date:      $Date: 2007-04-13 16:16:04 $
    Source File:      $Source: /home/cvspsrv/cvsroot/games/asc/source/libs/paragui/src/widgets/pgprogressbar.cpp,v $
    CVS/RCS Revision: $Revision: 1.2 $
    Status:           $State: Exp $
*/

#include "pgapplication.h"
#include "pgprogressbar.h"
#include "pgdraw.h"
#include "pgtheme.h"

PG_ProgressBar::PG_ProgressBar(PG_Widget* parent, const PG_Rect& r, const std::string& style) : PG_ThemeWidget(parent, r) {

        my_percentCurrent = 0;
        my_drawPercentage = true;

        my_colorText.r = 0xFF;
        my_colorText.g = 0xFF;
        my_colorText.b = 0xFF;

        // fill in default gradient
        my_pbGradient.colors[0].r = 0x00;
        my_pbGradient.colors[0].g = 0x00;
        my_pbGradient.colors[0].b = 0x00;

        my_pbGradient.colors[1].r = 0x00;
        my_pbGradient.colors[1].g = 0x00;
        my_pbGradient.colors[1].b = 0xFF;

        my_pbGradient.colors[2].r = 0x00;
        my_pbGradient.colors[2].g = 0x00;
        my_pbGradient.colors[2].b = 0x00;

        my_pbGradient.colors[3].r = 0x00;
        my_pbGradient.colors[3].g = 0x00;
        my_pbGradient.colors[3].b = 0xFF;

        my_pbBackground = NULL;
        my_pbBackmode = PG_Draw::TILE;
        my_pbBlend = 255;
        my_bordersize = 1;

        LoadThemeStyle(style);
}

PG_ProgressBar::~PG_ProgressBar() {}

void PG_ProgressBar::SetDrawPercentage(bool drawit) {
        if(drawit != my_drawPercentage) {
                my_drawPercentage = drawit;
                Update();
        }
}


void PG_ProgressBar::LoadThemeStyle(const std::string& widgettype) {
        PG_Theme* t = PG_Application::GetTheme();

        PG_ThemeWidget::LoadThemeStyle(widgettype, "Background");

        my_pbBackground = t->FindSurface(widgettype, "Indicator", "background");

        PG_Gradient* g = t->FindGradient(widgettype, "Indicator", "gradient");

        if(g) {
                my_pbGradient = *g;
        }

        t->GetProperty(widgettype, "Indicator", "backmode", my_pbBackmode);
        t->GetProperty(widgettype, "Indicator", "blend", my_pbBlend);
}

void PG_ProgressBar::eventBlit(SDL_Surface* srf, const PG_Rect& src, const PG_Rect& dst) {
        PG_Rect pr(
            my_xpos + 1,
            my_ypos + 2,
            my_width - 2,
            my_height - 4);

        PG_Rect my_src, my_dst;
        char *buf;

        // get length of progress indicator

        int l = (int)(((double)pr.my_width / 100.0) * my_percentCurrent);
        pr.my_width = l;

        // draw our superclass
        PG_ThemeWidget::eventBlit(srf, src, dst);

        // draw the gradient
        SDL_Surface* ind = PG_ThemeWidget::CreateThemedSurface(
                               pr,
                               &my_pbGradient,
                               my_pbBackground,                 // currently no background
                               my_pbBackmode,   // backmode
                               my_pbBlend);                     // background blend

        GetClipRects(my_src, my_dst, pr);
        PG_Draw::BlitSurface(ind, my_src, PG_Application::GetScreen(), my_dst);

        PG_ThemeWidget::DeleteThemedSurface(ind);

        if(my_drawPercentage) {
                buf = new char[my_text.length() + 64];
                // draw the percentage
                if (my_text.length() == 0)
                        sprintf(buf, "%i%%", (int)my_percentCurrent);
                else
                        sprintf(buf, my_text.c_str(), (int)my_percentCurrent);

                Uint16 w, h;
                GetTextSize(w,h, buf);

                // !! textrectangle can be bigger than the widget
                int x = (my_width - w)/2;
                int y = (my_height - h)/2;

                DrawText(x, y, buf);

                delete[] buf;
        }
}

// Why a double? -Dave
void PG_ProgressBar::SetProgress(double p) {
        if(p < 0)
                p = 0;
        if(p >100)
                p = 100;
        if(my_percentCurrent != p) {
                my_percentCurrent = p;
                Update();
        }
}

/*
 * Local Variables:
 * c-basic-offset: 8
 * End:
 */

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