void MOText::draw(void)
{
MFont * font = getFont();
const char * text = m_text.getData();
if(! (strlen(text) > 0 && font))
return;
if(m_linesOffset.size() == 0)
return;
MRenderingContext * render = MEngine().getInstance()->getRenderingContext();
render->enableBlending();
render->enableTexture();
render->disableLighting();
render->setColor4(m_color);
render->setBlendingMode(M_BLENDING_ALPHA);
MVector2 vertices[4];
MVector2 texCoords[4];
render->disableNormalArray();
render->disableColorArray();
render->enableVertexArray();
render->enableTexCoordArray();
render->setVertexPointer(M_FLOAT, 2, vertices);
render->setTexCoordPointer(M_FLOAT, 2, texCoords);
render->bindTexture(font->getTextureId());
unsigned int lineId = 0;
float lineOffset = m_linesOffset[0];
float tabSize = m_size*2;
float fontSize = (float)font->getFontSize();
float widthFactor = font->getTextureWith() / fontSize;
float heightFactor = font->getTextureHeight() / fontSize;
float xc = 0, yc = 0;
unsigned int i;
unsigned int size = strlen(text);
for(i=0; i<size; i++)
{
if(text[i] == '\n') // return
{
if(((i+1) < size))
{
lineId++;
lineOffset = m_linesOffset[lineId];
yc += m_size;
xc = 0;
}
continue;
}
if(text[i] == '\t') // tab
{
int tab = (int)(xc / tabSize) + 1;
xc = tab*tabSize;
continue;
}
// get character
unsigned int charCode = (unsigned int)((unsigned char)text[i]);
MCharacter * character = font->getCharacter(charCode);
if(! character)
continue;
MVector2 pos = character->getPos();
MVector2 scale = character->getScale();
MVector2 offset = character->getOffset() * m_size + MVector2(lineOffset, 0);
float width = scale.x * widthFactor * m_size;
float height = scale.y * heightFactor * m_size;
// construct quad
texCoords[0] = MVector2(pos.x, (pos.y + scale.y));
vertices[0] = MVector2(xc, (yc + height)) + offset;
texCoords[1] = MVector2((pos.x + scale.x), (pos.y + scale.y));
vertices[1] = MVector2((xc + width), (yc + height)) + offset;
texCoords[3] = MVector2((pos.x + scale.x), pos.y);
vertices[3] = MVector2((xc + width), yc) + offset;
texCoords[2] = MVector2(pos.x, pos.y);
vertices[2] = MVector2(xc, yc) + offset;
// draw quad
render->drawArray(M_PRIMITIVE_TRIANGLE_STRIP, 0, 4);
//move to next character
xc += character->getXAdvance() * m_size;
}
}
void MGuiEditText::draw(void)
{
MRenderingContext * render = MGui::getInstance()->getRenderingContext();
if(! isVisible())
return;
if(! isPressed())
updateFromVariable();
// draw selection
if(isPressed())
{
render->disableTexture();
render->setColor4(MVector4(1, 0.1f, 0.1f, 0.3f));
getFont()->drawSelection(getText(), getPosition(), getTextSize(), m_startSelectionId, m_endSelectionId);
}
// set text color
if(isPressed()){
render->setColor4(getPressedColor());
}
else if(isHighLight()){
render->setColor4(getHighLightColor());
}
else{
render->setColor4(getNormalColor());
}
// draw text
render->enableTexture();
getFont()->draw(getText(), getPosition(), getTextSize());
if(isPressed() && (m_startSelectionId == m_endSelectionId)) // cursor
{
render->disableTexture();
render->setColor4(MVector4(1, 0, 0, 0.5f));
// position
MVector2 position = getFont()->getCharacterPosition(
getText(),
getPosition(),
getTextSize(),
getCharId()
);
// scale
MVector2 scale = MVector2(getTextSize() * 0.1f, getTextSize());
float offset = (getTextSize() - (getTextSize()*getFont()->getSpace()))*0.5f;
float px = (float)((int)(position.x + offset));
float py = (float)((int)position.y);
// draw
render->disableNormalArray();
render->disableTexCoordArray();
render->disableColorArray();
render->enableVertexArray();
MVector2 vertices[4] = {
MVector2(px, py),
MVector2(px, py + scale.y),
MVector2(px + scale.x, py),
MVector2(px + scale.x, py + scale.y)
};
render->setVertexPointer(M_FLOAT, 2, vertices);
render->drawArray(M_PRIMITIVE_TRIANGLE_STRIP, 0, 4);
}
MGuiEvent guiEvent;
guiEvent.type = MGUI_EVENT_DRAW;
if(m_pointerEvent)
m_pointerEvent(this, &guiEvent);
}