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#include <string>
#include <stdexcept>
#include "Config.h"
#include "Global.h"
#include "interface/Point.h"
#include "interface/Textbox.h"
#include "interface/Keys.h"
using namespace ui;
Textbox::Textbox(Window* parent_state, std::string textboxText):
Component(parent_state),
text(textboxText),
textPosition(ui::Point(0, 0)),
textVAlign(AlignMiddle),
textHAlign(AlignCentre),
actionCallback(NULL)
{
TextPosition();
cursor = text.length();
}
Textbox::Textbox(Point position, Point size, std::string textboxText):
Component(position, size),
text(textboxText),
textPosition(ui::Point(0, 0)),
textVAlign(AlignMiddle),
textHAlign(AlignCentre),
actionCallback(NULL)
{
TextPosition();
cursor = text.length();
}
Textbox::Textbox(std::string textboxText):
Component(),
text(textboxText),
textPosition(ui::Point(0, 0)),
textVAlign(AlignMiddle),
textHAlign(AlignCentre),
actionCallback(NULL)
{
TextPosition();
cursor = text.length();
}
Textbox::~Textbox()
{
if(actionCallback)
delete actionCallback;
}
void Textbox::TextPosition()
{
std::string tempText = text;
if(tempText.length() && cursor)
{
tempText.erase(cursor, tempText.length()-cursor);
cursorPosition = Graphics::textwidth((char *)tempText.c_str());
}
else
{
cursorPosition = 0;
}
//Position.X+(Size.X-Graphics::textwidth((char *)ButtonText.c_str()))/2, Position.Y+(Size.Y-10)/2
switch(textVAlign)
{
case AlignTop:
textPosition.Y = 3;
break;
case AlignMiddle:
textPosition.Y = (Size.Y-10)/2;
break;
case AlignBottom:
textPosition.Y = Size.Y-11;
break;
}
switch(textHAlign)
{
case AlignLeft:
textPosition.X = 3;
break;
case AlignCentre:
textPosition.X = (Size.X-Graphics::textwidth((char *)text.c_str()))/2;
break;
case AlignRight:
textPosition.X = (Size.X-Graphics::textwidth((char *)text.c_str()))-2;
break;
}
}
void Textbox::SetText(std::string text)
{
this->text = text;
TextPosition();
}
std::string Textbox::GetText()
{
return text;
}
void Textbox::OnKeyPress(int key, bool shift, bool ctrl, bool alt)
{
bool changed = false;
try
{
switch(key)
{
case KEY_HOME:
cursor = 0;
break;
case KEY_END:
cursor = text.length();
break;
case KEY_LEFT:
if(cursor > 0)
cursor--;
break;
case KEY_RIGHT:
if(cursor < text.length())
cursor++;
break;
case KEY_DELETE:
if(text.length() && cursor < text.length())
{
if(ctrl)
text.erase(cursor, text.length()-cursor);
else
text.erase(cursor, 1);
changed = true;
}
break;
case KEY_BACKSPACE:
if(text.length() && cursor > 0)
{
if(ctrl)
{
text.erase(0, cursor);
cursor = 0;
}
else
{
text.erase(cursor-1, 1);
cursor--;
}
changed = true;
}
break;
default:
if(key >= ' ' && key < 127)
{
if(cursor == text.length())
{
text += key;
}
else
{
text.insert(cursor, 1, (char)key);
}
cursor++;
changed = true;
}
}
if(changed && actionCallback)
{
actionCallback->TextChangedCallback(this);
}
}
catch(std::out_of_range e)
{
cursor = 0;
text = "";
}
TextPosition();
}
void Textbox::Draw(const Point& screenPos)
{
Graphics * g = Engine::Ref().g;
if(IsFocused())
{
g->drawrect(screenPos.X, screenPos.Y, Size.X, Size.Y, 255, 255, 255, 255);
g->draw_line(screenPos.X+textPosition.X+cursorPosition, screenPos.Y+3, screenPos.X+textPosition.X+cursorPosition, screenPos.Y+12, 255, 255, 255, XRES+BARSIZE);
}
else
{
g->drawrect(screenPos.X, screenPos.Y, Size.X, Size.Y, 160, 160, 160, 255);
}
g->drawtext(screenPos.X+textPosition.X, screenPos.Y+textPosition.Y, text, 255, 255, 255, 255);
}
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