#include "gui.h"

namespace Gui {

#define TOOLTIP_PADDING 5
#define FADE_TIME_MS    500

ToolTip::ToolTip(const char* text) {
  SetText(text);
  m_createdTime = SDL_GetTicks();
}

void ToolTip::CalcSize(void) {
  float w, h;
  Screen::MeasureString(m_text, w, h);
  w += 2*TOOLTIP_PADDING;
  SetSize(w, h);
}

ToolTip::ToolTip(std::string& text) {
  SetText(text);
  m_createdTime = SDL_GetTicks();
}

void ToolTip::SetText(const char* text) {
  m_text = text;
  CalcSize();
}

void ToolTip::SetText(std::string& text) {
  m_text = text;
  CalcSize();
}

void ToolTip::Draw(void) {
  float size[2];
  int age = SDL_GetTicks() - m_createdTime;
  float alpha = age/(float)FADE_TIME_MS; alpha = MIN(alpha, 0.75);
  glEnable(GL_BLEND);
  GetSize(size);
  glColor4f(.2, .2, .6, alpha);
  glBegin(GL_QUADS);
    glVertex2f(0, 0);
    glVertex2f(0, size[1]);
    glVertex2f(size[0], size[1]);
    glVertex2f(size[0], 0);
  glEnd();
  glColor4f(.0, .0, .8, alpha);
  glBegin(GL_LINE_LOOP);
    glVertex2f(size[0], 0);
    glVertex2f(size[0], size[1]);
    glVertex2f(0, size[1]);
    glVertex2f(0, 0);
  glEnd();
  glPushMatrix();
  glTranslatef(TOOLTIP_PADDING, 0, 0);
  glColor4f(1, 1, 1, alpha);
  Screen::RenderMarkup(m_text);
  glPopMatrix();
  glDisable(GL_BLEND);
}

void ToolTip::GetSizeRequested(float size[2]) {
#pragma message("Not setting size correctly.")
  size[0] = 70;
  size[1] = 10;
}

}