pgradiobutton.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/pgradiobutton.cpp,v $
    CVS/RCS Revision: $Revision: 1.2 $
    Status:           $State: Exp $
*/

#include "pgradiobutton.h"
#include "pgapplication.h"
#include "pgtheme.h"
#include "pgbutton.h"

#include "propstrings_priv.h"

PG_RadioButton::PG_RadioButton(PG_Widget* parent, const PG_Rect& r, const std::string& text, PG_RadioButton* firstOfGroup, int id, const std::string& style) : PG_ThemeWidget(parent, r) {
        PG_Rect rectButton;
        PG_Rect rectLabel;

        SetID(id);

        my_groupFirst = (firstOfGroup == NULL) ? this : firstOfGroup;
        my_groupNext = NULL;

        my_isPressed = false;
        my_storeMarker = false;
        my_hoverTransparency = 128;

        if(text.empty()) {
                rectButton.SetRect(0, 0, r.my_width, r.my_height);
        } else {
                rectButton.SetRect(0, 0, r.my_height, r.my_height);
        }

        my_widgetButton = new PG_Button(this, rectButton);
        my_widgetButton->SetToggle(true);
        my_widgetButton->EnableReceiver(false);
        my_widgetButton->sigClick.connect(slot(*this, &PG_RadioButton::handleButtonClick));

        rectLabel.SetRect(rectButton.my_width, 0, r.my_width - rectButton.my_width, r.my_height);
        my_widgetLabel = new PG_Label(this, rectLabel, text, style);
        my_widgetLabel->EnableReceiver(false);

        // load default first
        if(style != PG_PropStr::RadioButton) {
                LoadThemeStyle(PG_PropStr::RadioButton);
        }

        // load inherited style
        LoadThemeStyle(style);

        SetTransparency(255);

        AddToGroup(this);

        if(firstOfGroup == NULL) {
                SetPressed();
        }
}

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

        t->GetProperty(widgettype, PG_PropStr::RadioButton, PG_PropStr::transparency, my_hoverTransparency);

        PG_ThemeWidget::LoadThemeStyle(widgettype, PG_PropStr::RadioButton);

        my_widgetButton->LoadThemeStyle(widgettype, "CheckButton");
        my_widgetLabel->LoadThemeStyle(widgettype);
}

PG_RadioButton::~PG_RadioButton() {
        delete my_widgetLabel;
        delete my_widgetButton;
}

void PG_RadioButton::eventMouseEnter() {
        SetTransparency(my_hoverTransparency);
        Update();
        PG_ThemeWidget::eventMouseEnter();
}

void PG_RadioButton::eventMouseLeave() {
        SetTransparency(255);
        Update();
        PG_ThemeWidget::eventMouseLeave();
}

bool PG_RadioButton::eventMouseButtonUp(const SDL_MouseButtonEvent* my_widgetButton) {
        PG_RadioButton* list = my_groupFirst;
        Uint16 mx;
        Uint16 my;
        if(my_groupFirst != NULL) {

                if(my_widgetButton->button == 4) {
                        while(list->my_groupNext != NULL) {
                                if(list->my_groupNext == this) {
                                        mx = (Uint16)(list->my_xpos + 0.5 + ((my_widgetButton->x * 1.0 - list->my_xpos) / list->my_groupNext->my_width) * list->my_width);
                                        my = list->my_ypos + list->my_height / 2;
                                        SDL_WarpMouse(mx, my);
                                        break;
                                }
                                list = list->my_groupNext;
                        }
                        return true;
                }

                if(my_widgetButton->button == 5) {
                        do {
                                if(list == this && list->my_groupNext != NULL) {
                                        mx = (Uint16)(list->my_groupNext->my_xpos + 0.5 + ((my_widgetButton->x * 1.0 - list->my_groupNext->my_xpos) / list->my_width) * list->my_groupNext->my_width);
                                        my = list->my_groupNext->my_ypos + list->my_groupNext->my_height / 2;
                                        SDL_WarpMouse(mx, my);
                                        break;
                                }
                                list = list->my_groupNext;
                        } while(list != NULL);
                        return true;
                }
        }

        SetPressed();
        return true;
}

bool PG_RadioButton::handleButtonClick(PG_Button* button) {
        SetPressed();
        return true;
}

void PG_RadioButton::SetPressed() {

        PG_RadioButton* list = my_groupFirst;

        while(list != NULL) {
                if (list->my_isPressed) {
                        list->ReleaseButton();
                }
                list = list->my_groupNext;
        }

        my_widgetButton->SetPressed(true);

        if(my_isPressed)
                return;

        my_isPressed = true;

        Update();

        // Notify parent
        sigClick(this, true);
}

bool PG_RadioButton::GetPressed() {
        return my_isPressed;
}

void PG_RadioButton::ReleaseButton() {
        my_widgetButton->SetPressed(false);
        my_isPressed = false;
}

void PG_RadioButton::AddToGroup(PG_RadioButton* w) {
        PG_RadioButton* list = my_groupFirst;

        while(list->my_groupNext != NULL) {
                list = list->my_groupNext;
        }

        list->my_groupNext = w;
        w->my_groupFirst = my_groupFirst;
        w->my_groupNext = NULL;
}

void PG_RadioButton::SetText(const std::string& text) {
        my_widgetLabel->SetText(text);
}

const PG_String& PG_RadioButton::GetText() {
        return my_widgetLabel->GetText();
}

void PG_RadioButton::SetAlignment(PG_Label::TextAlign a) {
        my_widgetLabel->SetAlignment(a);
}

void PG_RadioButton::SetFontColor(const PG_Color& Color) {
        my_widgetLabel->SetFontColor(Color);
}

void PG_RadioButton::SetSizeByText(int Width, int Height, const std::string& Text) {
        my_widgetButton->SetSizeByText();
        my_widgetLabel->SetSizeByText(0, 0, Text);

        my_widgetLabel->MoveWidget(my_widgetButton->my_width, 0);
        SizeWidget(my_widgetButton->my_width + my_widgetLabel->my_width + Width, PG_MAX(my_widgetButton->my_height + Height, my_widgetLabel->my_height));
        my_widgetButton->MoveWidget(0, (my_height - my_widgetButton->my_height) >> 1);
}

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