src/gui/textbox.cpp

Go to the documentation of this file.

#include "gui/textbox.h"
using namespace VGUI;

TextBox::TextBox( Widget* w )
{
        setting = "";
        accepts = "";
        center = w->GetCenter();
        name = w->GetName();
        text = w->GetText();
        type = w->GetType();
        tip = w->GetTip();
        rel_width = w->GetRelWidth();
        rel_height = w->GetRelHeight();
        enabled = w->GetEnabled();
        selected = w->GetSelected();
        is_default = w->GetDefault();
        is_cancel = w->GetCancel();
        has_icon = w->GetHasIcon();
        width_auto = w->GetWidthAuto();
        height_auto = w->GetHeightAuto();
        font_size = w->GetFontSize();
        color_r = w->GetColorR();
        color_g = w->GetColorG();
        color_b = w->GetColorB();
        spacing = 0.3;
        cursor_pos = 0;
        highlight_start = highlight_end = 10000;

        string skin_path = settings.GetSkinPath();
        textbox_tex.Load( skin_path + "/textures/widgets/text_box.png", false );
        cursor_tex.Load( skin_path + "/textures/widgets/text_cursor.png", false );
        highlight_tex.Load( skin_path + "/textures/widgets/text_highlight.png", false );

        tex_width = 0.0277;
        tex_height = 0.0370;

        // width = dist from left of text to wheel + width of wheel + texture width
        if( width_auto )
        {
                rel_width = spacing + font.Width( "999.999.999.999", 1, 6 ) + 0.1;
        }

        // height = button texture height
        if( height_auto )
        {
                rel_height = tex_height;
        }
        
        l_down=r_down=bkspc_down=del_down=mbtn_down=cursor_on = false;
}

TextBox::~TextBox()
{
}

void TextBox::SetSpacing( float new_spacing )
{
        spacing = new_spacing;
        if( width_auto )
        {
                rel_width = spacing + font.Width( "999.999.999.999", 1, 6 ) + 0.1;
        }
}

void TextBox::Save()
{
        settings.Set( setting, value );
}

void TextBox::ResetValue()
{
        string default_val;
        settings.Get( setting, default_val );
        SetValue( default_val );
}

void TextBox::Draw()
{
        Draw( 1.0 );
}

void TextBox::Draw( float opacity )
{
        //float char_width = 0.0;
        float center_x = center.GetXPercent();
        float center_y = center.GetYPercent();
        float rel_width_half = rel_width / 2.0f;
        float rel_height_half = rel_height / 2.0f;
        float opacity_txt = selected ? 0.9 : enabled ? 0.75 : 0.4;

        // draw textbox image
        utility.DrawButton( center_x - rel_width_half + spacing + 0.02777,
                            center_y - rel_height_half,
                            center_x + rel_width_half - 0.02777,
                            center_y + rel_height_half,
                            0.02777, &textbox_tex, opacity * opacity_txt );

/*      // draw highlight
        if( ( highlight_start != 10000 ) && ( highlight_end != 10000 ) && ( highlight_start != cursor_pos ) && ( highlight_start != highlight_end ) )
        {
                string::size_type h_s, h_e;
                if( highlight_start > highlight_end )
                {
                        h_e = highlight_start;
                        h_s = highlight_end;
                }
                else
                {
                        h_s = highlight_start;
                        h_e = highlight_end;
                }

                float highlight_min_x = center_x - rel_width_half + spacing + 0.02777 + font.Width( value.substr( 0, h_s ).c_str(), 1, font_size );
                float highlight_max_x = highlight_min_x + ( h_s == h_e ? 0.0 : font.Width( value.substr( h_s, h_e ).c_str(), 1, font_size ) - 0.02777 );

                utility.DrawButton( highlight_min_x + 0.02777,
                                    center_y - rel_height_half,
                                    highlight_max_x,
                                    center_y + rel_height_half,
                                    0.02777, highlight_tex, opacity * opacity_txt );
        }               
*/
        // draw textbox text
        font.Print( center_x - rel_width_half + spacing + 0.029,
                    center_y - rel_height_half - 0.005,
                    value.c_str(), 1, font_size, 0.0, 0.0, 0.0, opacity );

        float blink_time = (float)( SDL_GetTicks() - last_blink ) / 1000.0;
        if( blink_time >= 0.5 )
        {
                cursor_on = !cursor_on;
                last_blink = SDL_GetTicks();
        }

        // draw textbox cursor
        if( selected && cursor_on )
        {
                float cursor_x = center_x - rel_width_half + spacing + 0.02777 + font.Width( value.substr( 0, cursor_pos ).c_str(), 1, font_size );

                utility.Draw2D( cursor_x,
                                center_y - rel_height_half,
                                cursor_x + tex_width,
                                center_y + rel_height_half,
                                &cursor_tex, 0.0, 0, opacity );
        }

        // draw text
        font.Print( center_x - rel_width_half,
                    center_y - ( font.Height( text.c_str(), 1, font_size ) / 2.0f ),
                    text.c_str(), 1, font_size, color_r, color_g, color_b, opacity_txt * opacity );

        // draw tip
        if( selected && ( tip != "" ) )
                font.Print( 0.5 - ( font.Width( tip.c_str(), 1, 6 ) / 2.0f ), 0.90, tip.c_str(), 1, 6, 0.7, 0.7, 0.7, 0.9 );    
}

void TextBox::IncValuePress()
{
        Release();
        r_down = true;
}

void TextBox::IncValueRelease()
{
        if( r_down && ( cursor_pos < value.size() ) )
        {
                cursor_pos++;
        }
        Release();
}

void TextBox::DecValuePress()
{
        Release();
        l_down = true;
}

void TextBox::DecValueRelease()
{
        if( l_down && ( cursor_pos > 0 ) )
        {
                cursor_pos--;
        }
        Release();
}

void TextBox::BackspacePress()
{
        Release();
        bkspc_down = true;
}

void TextBox::BackspaceRelease()
{
        if( bkspc_down && ( cursor_pos > 0 ) )
        {
                cursor_pos--;
                value.erase( cursor_pos, 1 );
        }       
        Release();
}

void TextBox::DeletePress()
{
        Release();
        del_down = true;
}

void TextBox::DeleteRelease()
{
        if( del_down && ( cursor_pos < value.size() ) )
        {
                value.erase( cursor_pos, 1 );
        }       
        Release();
}

void TextBox::Release()
{
        r_down = l_down = bkspc_down = del_down = false;
}

void TextBox::EnterText( SDLKey key )
{
        if( key == SDLK_END )
        {
                cursor_pos = value.size();
                return;
        }
        else if( key == SDLK_HOME )
        {
                cursor_pos = 0;
                return;
        }

        for( unsigned int i = 0; i < accepts.size(); i++ )
        {
                if( accepts[i] == key )
                {
                        string t;
                        t.append((char *) &key);
                        value.insert( cursor_pos, t );
                        cursor_pos++;
                        break;
                }
        }
}

bool TextBox::MouseOver( float x, float y )
{
        //string::size_type cursor_pos_click = 10000;
        float min_x, min_y, max_x, max_y;
        float center_x = center.GetXPercent();
        float center_y = center.GetYPercent();
        float rel_width_half = rel_width / 2.0f;
        float rel_height_half = rel_height / 2.0f;
        min_x = center_x - rel_width_half;
        min_y = center_y - rel_height_half;
        max_x = center_x + rel_width_half;
        max_y = center_y + rel_height_half;
/*
        if( mbtn_down && ( highlight_start != 10000 ) && 
            ( x >= min_x ) && ( x <= max_x ) && ( y >= min_y ) && ( y <= max_y ) )
        {
                float char_width = 0.0;
                float min_char_x, max_char_x;
                float half_char_width;

                for( string::size_type i = 0; i < value.size(); i++ )
                {
                        //char_width = font.Width( value.substr( i, i ).c_str(), 1, 6 );
                        min_char_x = min_x + 0.029 + ( i == 0 ? 0.0 : font.Width( value.substr( 0, i - 1 ).c_str(), 1, 6 ) );
                        max_char_x = min_x + 0.029 + font.Width( value.substr( 0, i ).c_str(), 1, 6 );
                        char_width = max_char_x - min_char_x;
                        half_char_width = char_width / 2.0f;

                        if( ( x >= min_char_x ) && ( x <= ( max_char_x - half_char_width ) ) )
                        {
                                cursor_pos_click = i - 1;
                                break;
                        }
                        else if( ( x > ( max_char_x - half_char_width ) ) && ( x < max_char_x ) )
                        {
                                cursor_pos_click = i;
                                break;
                        }
                }

                if( cursor_pos_click == 10000 )
                {
                        if( ( x >= min_x ) && ( x < min_x + 0.029 ) )
                        {
                                cursor_pos = 0;
                        }
                        else // if( ( x <= max_x ) && ( x > max_x - 0.05 ) )
                        {
                                cursor_pos = value.size();
                        }
                }
                else
                {
                        cursor_pos = cursor_pos_click;
                }

                if( ( highlight_start != 100000 ) && ( highlight_start != cursor_pos ) )
                        highlight_end = cursor_pos;
        }
*/
        return ( x > min_x ) && ( x < max_x ) && ( y > min_y ) && ( y < max_y );
}

string TextBox::MousePress( float x, float y )
{
        string action = "";
        string::size_type cursor_pos_click = 10000;
        float min_x, min_y, max_x, max_y;
        float center_x = center.GetXPercent();
        float center_y = center.GetYPercent();
        float rel_width_half = rel_width / 2.0f;
        float rel_height_half = rel_height / 2.0f;
        min_x = center_x - rel_width_half + spacing;
        min_y = center_y - rel_height_half;
        max_x = center_x + rel_width_half;
        max_y = center_y + rel_height_half;

        if( ( x >= min_x ) && ( x <= max_x ) && ( y >= min_y ) && ( y <= max_y ) )
        {
                mbtn_down = true;
                float char_width = 0.0;
                float min_char_x, max_char_x;
                float half_char_width;

                for( string::size_type i = 0; i < value.size(); i++ )
                {
                        //char_width = font.Width( value.substr( i, i ).c_str(), 1, 6 );
                        min_char_x = min_x + 0.029 + ( i == 0 ? 0.0 : font.Width( value.substr( 0, i - 1 ).c_str(), 1, 6 ) );
                        max_char_x = min_x + 0.029 + font.Width( value.substr( 0, i ).c_str(), 1, 6 );
                        char_width = max_char_x - min_char_x;
                        half_char_width = char_width / 2.0f;

                        if( ( x >= min_char_x ) && ( x <= ( max_char_x - half_char_width ) ) )
                        {
                                //cout << "click press on this character" << endl;
                                cursor_pos_click = i - 1;
                                break;
                        }
                        else if( ( x > ( max_char_x - half_char_width ) ) && ( x < max_char_x ) )
                        {
                                //cout << "click press on next character" << endl;
                                cursor_pos_click = i;
                                break;
                        }
                }

                if( cursor_pos_click == 10000 )
                {
                        if( ( x >= min_x ) && ( x < min_x + 0.029 ) )
                        {
                                cursor_pos = 0;
                        }
                        else // if( ( x <= max_x ) && ( x > max_x - 0.05 ) )
                        {
                                cursor_pos = value.size();
                        }
                }
                else
                {
                        cursor_pos = cursor_pos_click;
                }

                highlight_start = cursor_pos;
        }

        return action;
}

string TextBox::MouseRelease( float x, float y )
{
        mbtn_down = false;
        string action = "";
        string::size_type cursor_pos_click = 10000;
        float min_x, min_y, max_x, max_y;
        float center_x = center.GetXPercent();
        float center_y = center.GetYPercent();
        float rel_width_half = rel_width / 2.0f;
        float rel_height_half = rel_height / 2.0f;
        min_x = center_x - rel_width_half + spacing;
        min_y = center_y - rel_height_half;
        max_x = center_x + rel_width_half;
        max_y = center_y + rel_height_half;

        //cout << "mouse was released" << endl;
        if( /* mbtn_down && */ ( x >= min_x ) && ( x <= max_x ) && ( y >= min_y ) && ( y <= max_y ) )
        {
                //cout << "release was after the mouse button was down" << endl;
                float char_width = 0.0;
                float min_char_x, max_char_x;
                float half_char_width;

                for( string::size_type i = 0; i < value.size(); i++ )
                {
                        //char_width = font.Width( value.substr( i, i ).c_str(), 1, 6 );
                        min_char_x = min_x + 0.029 + ( i == 0 ? 0.0 : font.Width( value.substr( 0, i - 1 ).c_str(), 1, 6 ) );
                        max_char_x = min_x + 0.029 + font.Width( value.substr( 0, i ).c_str(), 1, 6 );
                        char_width = max_char_x - min_char_x;
                        half_char_width = char_width / 2.0f;

                        if( ( x >= min_char_x ) && ( x <= ( max_char_x - half_char_width ) ) )
                        {
                                //cout << "click release on this character" << endl;
                                cursor_pos_click = i - 1;
                                break;
                        }
                        else if( ( x > ( max_char_x - half_char_width ) ) && ( x < max_char_x ) )
                        {
                                //cout << "click release on next character" << endl;
                                cursor_pos_click = i;
                                break;
                        }
                }

                if( cursor_pos_click == 10000 )
                {
                        if( ( x >= min_x ) && ( x < min_x + 0.029 ) )
                        {
                                cursor_pos = 0;
                        }
                        else // if( ( x <= max_x ) && ( x > max_x - 0.05 ) )
                        {
                                cursor_pos = value.size();
                        }
                }
                else
                {
                        cursor_pos = cursor_pos_click;
                }

                //cout << "this character: " << value[cursor_pos] << endl;
                if( ( cursor_pos != highlight_start ) && ( highlight_start != 10000 ) )
                        highlight_end = cursor_pos;
                else
                        highlight_start = highlight_end = 10000;
        }

        return action;
}

---