/**
* @brief Prints text on the screen.
*
* @usage gfx.print( nil, "Hello World!", 50, 50, colour.new("Red") ) -- Displays text in red at 50,50.
* @usage gfx.print( true, "Hello World!", 50, 50, col, 100 ) -- Displays text to a maximum of 100 pixels wide.
* @usage gfx.print( true, str, 50, 50, col, 100, true ) -- Displays centered text to a maximum of 100 pixels.
*
* @luaparam small Whether or not to use a small font.
* @luaparam str String to print.
* @luaparam x X position to print at.
* @luaparam y Y position to print at.
* @luaparam col Colour to print text.
* @luaparam max Optional parameter to indicate maximum width to render up to.
* @luaparam center Optional boolean parameter indicating whether or not to center it.
* @luafunc print( small, str, x, y, col, max, center )
*/
static int gfxL_print( lua_State *L )
{
glFont *font;
const char *str;
double x, y;
LuaColour *lc;
int max, mid;
/* Parse parameters. */
font = lua_toboolean(L,1) ? &gl_smallFont : &gl_defFont;
str = luaL_checkstring(L,2);
x = luaL_checknumber(L,3);
y = luaL_checknumber(L,4);
lc = luaL_checkcolour(L,5);
if (lua_gettop(L) >= 6)
max = luaL_checkinteger(L,6);
else
max = 0;
mid = lua_toboolean(L,7);
/* Render. */
if (mid)
gl_printMidRaw( font, max, x, y, &lc->col, str );
else if (max > 0)
gl_printMaxRaw( font, max, x, y, &lc->col, str );
else
gl_printRaw( font, x, y, &lc->col, str );
return 0;
}
/**
* @brief Renders a button widget.
*
* @param btn WIDGET_BUTTON widget to render.
* @param bx Base X position.
* @param by Base Y position.
*/
static void btn_render( Widget* btn, double bx, double by )
{
glColour *c, *dc, *lc;
double x, y;
x = bx + btn->x;
y = by + btn->y;
/* set the colours */
if (btn->dat.btn.disabled==1) {
lc = &cGrey60;
c = &cGrey20;
dc = &cGrey40;
}
else {
switch (btn->status) {
case WIDGET_STATUS_NORMAL:
lc = &cGrey80;
c = &cGrey60;
dc = &cGrey40;
break;
case WIDGET_STATUS_MOUSEOVER:
lc = &cGrey90;
c = &cGrey70;
dc = &cGrey50;
break;
case WIDGET_STATUS_MOUSEDOWN:
lc = &cGrey90;
c = &cGrey50;
dc = &cGrey70;
break;
default:
break;
}
}
/* shaded base */
if (btn->dat.btn.disabled==1) {
toolkit_drawRect( x, y, btn->w, 0.4*btn->h, dc, NULL );
toolkit_drawRect( x, y+0.4*btn->h, btn->w, 0.6*btn->h, dc, c );
}
else {
toolkit_drawRect( x, y, btn->w, 0.6*btn->h, dc, c );
toolkit_drawRect( x, y+0.6*btn->h, btn->w, 0.4*btn->h, c, NULL );
}
/* inner outline */
toolkit_drawOutline( x, y, btn->w, btn->h, 0., lc, c );
/* outter outline */
toolkit_drawOutline( x, y, btn->w, btn->h, 1., &cBlack, NULL );
gl_printMidRaw( NULL, (int)btn->w,
bx + (double)SCREEN_W/2. + btn->x,
by + (double)SCREEN_H/2. + btn->y + (btn->h - gl_defFont.h)/2.,
&cDarkRed, btn->dat.btn.display );
}
/**
* @brief Renders a news widget.
*
* @param bx Base X position to render at.
* @param by Base Y positoin to render at.
* @param w Width of the widget.
* @param h Height of the widget.
*/
static void news_render( double bx, double by, double w, double h, void *data )
{
(void) data;
int i;
unsigned int t;
double y, dt;
t = SDL_GetTicks();
/* Calculate offset. */
if (!news_drag) {
dt = (double)(t-news_tick)/1000.;
news_pos += dt * 25.;
}
news_tick = t;
/* Make sure user isn't silly and drags it to negative values. */
if (news_pos < 0.)
news_pos += (news_font->h + 5.) * news_nlines + h + 3;
/* background */
gl_renderRect( bx, by, w, h, &cBlack );
/* Render the text. */
i = (int)(news_pos / (news_font->h + 5.));
if (i > news_nlines + (int)(h/(news_font->h + 5.)) + 3) {
news_pos = 0.;
return;
}
/* Get start position. */
y = news_pos - (i+1) * (news_font->h + 5.) - 10.;
/* Draw loop. */
while (i >= 0) {
/* Skip in line isn't valid. */
if (i >= news_nlines) {
i--;
y += news_font->h + 5.;
continue;
}
gl_printMidRaw( news_font, w-40.,
bx+10 + (double)SCREEN_W/2., by+y + (double)SCREEN_H/2.,
&cConsole, news_lines[i] );
/* Increment line and position. */
i--;
y += news_font->h + 5.;
}
}
/**
* @brief Renders the overlays.
*/
void omsg_render( double dt )
{
int i, j;
double x, y;
omsg_t *omsg;
glFont *font;
glColour col;
/* Case nothing to do. */
if (omsg_array == NULL)
return;
/* Center. */
x = omsg_center_x - omsg_center_w/2.;
y = omsg_center_y;
/* Render. */
for (i=0; i<array_size(omsg_array); i++) {
omsg = &omsg_array[i];
/* Check if time to erase. */
omsg->duration -= dt;
if (omsg->duration < 0.) {
omsg_free( omsg );
array_erase( &omsg_array, &omsg[0], &omsg[1] );
i--;
continue;
}
/* Must have a message. */
if (omsg->msg == NULL)
continue;
/* Render. */
font = omsg_getFont( omsg->font );
memcpy( &col, omsg->col, sizeof(glColour) );
if (omsg->duration < 1.)
col.a = omsg->duration;
for (j=0; j<omsg->nlines; j++) {
y -= font->h * 1.5;
if (j>0)
gl_printRestoreLast();
gl_printMidRaw( font, omsg_center_w, x, y, &col, omsg->msg[j] );
}
}
}
/**
* @brief Renders a text widget.
*
* @param txt Text widget to render.
* @param bx Base X position.
* @param by Base Y position.
*/
static void txt_render( Widget* txt, double bx, double by )
{
/* Must have text to display. */
if (txt->dat.txt.text==NULL)
return;
if (txt->dat.txt.centered)
gl_printMidRaw( txt->dat.txt.font, txt->w,
bx + (double)SCREEN_W/2. + txt->x,
by + (double)SCREEN_H/2. + txt->y,
txt->dat.txt.colour, txt->dat.txt.text );
else
gl_printTextRaw( txt->dat.txt.font, txt->w, txt->h,
bx + (double)SCREEN_W/2. + txt->x,
by + (double)SCREEN_H/2. + txt->y,
txt->dat.txt.colour, txt->dat.txt.text );
}
/**
* @brief Displays text centered in position and width.
*
* Will truncate if text is too long.
*
* @param ft_font Font to use (NULL defaults to gl_defFont)
* @param width Width of area to center in.
* @param x X position to display text at.
* @param y Y position to display text at.
* @param c Colour to use for text (NULL defaults to white).
* @param fmt Text to display formatted like printf.
* @return The number of characters it had to truncate.
*/
int gl_printMid( const glFont *ft_font, const int width,
double x, const double y,
const glColour* c, const char *fmt, ... )
{
/*float h = ft_font->h / .63;*/ /* slightly increase fontsize */
char text[256]; /* holds the string */
va_list ap;
if (fmt == NULL) return -1;
else { /* convert the symbols to text */
va_start(ap, fmt);
vsnprintf(text, 256, fmt, ap);
va_end(ap);
}
return gl_printMidRaw( ft_font, width, x, y, c, text );
}
/**
* @brief Renders an image array.
*
* @param iar Image array widget to render.
* @param bx Base X position.
* @param by Base Y position.
*/
static void iar_render( Widget* iar, double bx, double by )
{
int i,j, pos;
double x,y, w,h, xcurs,ycurs;
double scroll_pos;
int xelem, yelem;
double xspace;
glColour *c, *dc, *lc, tc, fontcolour;
int is_selected;
int tw;
double d;
/*
* Calculations.
*/
/* position */
x = bx + iar->x;
y = by + iar->y;
/* element dimensions */
iar_getDim( iar, &w, &h );
/* number of elements */
xelem = iar->dat.iar.xelem;
yelem = iar->dat.iar.yelem;
xspace = (double)(((int)iar->w - 10) % (int)w) / (double)(xelem + 1);
/* background */
toolkit_drawRect( x, y, iar->w, iar->h, &cBlack, NULL );
/*
* Scrollbar.
*/
d = h * (yelem - (int)(iar->h / h));
if (fabs(d) < 1e-05)
scroll_pos = 0.;
else
scroll_pos = iar->dat.iar.pos / d;
toolkit_drawScrollbar( x + iar->w - 10., y, 10., iar->h, scroll_pos );
/*
* Main drawing loop.
*/
gl_clipRect( x, y, iar->w, iar->h );
ycurs = y + iar->h - h + iar->dat.iar.pos;
for (j=0; j<yelem; j++) {
xcurs = x + xspace;
for (i=0; i<xelem; i++) {
/* Get position. */
pos = j*xelem + i;
/* Out of elements. */
if ((pos) >= iar->dat.iar.nelements)
break;
is_selected = (iar->dat.iar.selected == pos) ? 1 : 0;
fontcolour = cWhite;
/* Draw background. */
if (is_selected)
toolkit_drawRect( xcurs + 2.,
ycurs + 2.,
w - 5., h - 5., &cDConsole, NULL );
else if (iar->dat.iar.background != NULL) {
toolkit_drawRect( xcurs + 2.,
ycurs + 2.,
w - 5., h - 5., &iar->dat.iar.background[pos], NULL );
tc = iar->dat.iar.background[pos];
if (((tc.r + tc.g + tc.b) / 3) > 0.5)
fontcolour = cBlack;
}
/* image */
if (iar->dat.iar.images[pos] != NULL)
gl_blitScale( iar->dat.iar.images[pos],
xcurs + 5., ycurs + gl_smallFont.h + 7.,
iar->dat.iar.iw, iar->dat.iar.ih, NULL );
/* caption */
if (iar->dat.iar.captions[pos] != NULL)
gl_printMidRaw( &gl_smallFont, iar->dat.iar.iw, xcurs + 5., ycurs + 5.,
(is_selected) ? &cBlack : &fontcolour,
iar->dat.iar.captions[pos] );
/* quantity. */
if (iar->dat.iar.quantity != NULL) {
if (iar->dat.iar.quantity[pos] != NULL) {
/* Rectangle to highlight better. */
tw = gl_printWidthRaw( &gl_smallFont,
iar->dat.iar.quantity[pos] );
if (is_selected)
tc = cDConsole;
else if (iar->dat.iar.background != NULL)
tc = iar->dat.iar.background[pos];
else
tc = cBlack;
tc.a = 0.75;
toolkit_drawRect( xcurs + 2.,
ycurs + 5. + iar->dat.iar.ih,
tw + 4., gl_smallFont.h + 4., &tc, NULL );
/* Quantity number. */
gl_printMaxRaw( &gl_smallFont, iar->dat.iar.iw,
xcurs + 5., ycurs + iar->dat.iar.ih + 7.,
&fontcolour, iar->dat.iar.quantity[pos] );
}
}
/* Slot type. */
if (iar->dat.iar.slottype != NULL) {
if (iar->dat.iar.slottype[pos] != NULL) {
/* Rectangle to highlight better. Width is a hack due to lack of monospace font. */
tw = gl_printWidthRaw( &gl_smallFont, "M" );
if (is_selected)
tc = cDConsole;
else if (iar->dat.iar.background != NULL)
tc = iar->dat.iar.background[pos];
else
tc = cBlack;
tc.a = 0.75;
toolkit_drawRect( xcurs + iar->dat.iar.iw - 6.,
ycurs + 5. + iar->dat.iar.ih,
tw + 2., gl_smallFont.h + 4., &tc, NULL );
/* Slot size letter. */
gl_printMaxRaw( &gl_smallFont, iar->dat.iar.iw,
xcurs + iar->dat.iar.iw - 4., ycurs + iar->dat.iar.ih + 7.,
&fontcolour, iar->dat.iar.slottype[pos] );
}
}
/* outline */
if (is_selected) {
lc = &cWhite;
c = &cGrey80;
dc = &cGrey60;
}
else {
lc = toolkit_colLight;
c = toolkit_col;
dc = toolkit_colDark;
}
toolkit_drawOutline( xcurs + 2.,
ycurs + 2.,
w - 4., h - 4., 1., lc, c );
toolkit_drawOutline( xcurs + 2.,
ycurs + 2.,
w - 4., h - 4., 2., dc, NULL );
xcurs += w + xspace;
}
ycurs -= h;
}
gl_unclipRect();
/*
* Final outline.
*/
toolkit_drawOutline( x+1, y+1, iar->w-2, iar->h-2, 1., toolkit_colLight, toolkit_col );
toolkit_drawOutline( x+1, y+1, iar->w-2, iar->h-2, 2., toolkit_colDark, NULL );
}
/**
* @brief Renders a window border.
*
* @param w Window to render
*/
static void window_renderBorder( Window* w )
{
int i;
GLint cx, cy;
double x, y;
glColour *lc, *c, *dc, *oc;
GLint vertex[31*4];
GLfloat colours[31*4];
/* position */
x = w->x - (double)SCREEN_W/2.;
y = w->y - (double)SCREEN_H/2.;
/* colours */
lc = &cGrey90;
c = &cGrey70;
dc = &cGrey50;
oc = &cGrey30;
/*
* Case fullscreen.
*/
if (window_isFlag( w, WINDOW_FULLSCREEN )) {
/* Background. */
toolkit_drawRect( x, y, w->w, 0.6*w->h, dc, c );
toolkit_drawRect( x, y+0.6*w->h, w->w, 0.4*w->h, c, NULL );
/* Name. */
gl_printMidRaw( &gl_defFont, w->w,
x + (double)SCREEN_W/2.,
y + w->h - 20. + (double)SCREEN_H/2.,
&cBlack, w->name );
return;
}
/*
* window shaded bg
*/
/* main body */
toolkit_drawRect( x+21, y, w->w-42., 0.6*w->h, dc, c );
toolkit_drawRect( x+21, y+0.6*w->h, w->w-42., 0.4*w->h, c, NULL );
glShadeModel(GL_SMOOTH);
/* Both sides. */
gl_vboActivateOffset( toolkit_vbo, GL_COLOR_ARRAY,
toolkit_vboColourOffset, 4, GL_FLOAT, 0 );
gl_vboActivateOffset( toolkit_vbo, GL_VERTEX_ARRAY, 0, 2, GL_INT, 0 );
/* Colour is shared. */
colours[0] = c->r;
colours[1] = c->g;
colours[2] = c->r;
colours[3] = c->a;
for (i=0; i<7; i++) {
colours[4 + 4*i + 0] = dc->r;
colours[4 + 4*i + 1] = dc->g;
colours[4 + 4*i + 2] = dc->r;
colours[4 + 4*i + 3] = dc->a;
}
for (i=0; i<8; i++) {
colours[32 + 4*i + 0] = c->r;
colours[32 + 4*i + 1] = c->g;
colours[32 + 4*i + 2] = c->r;
colours[32 + 4*i + 3] = c->a;
}
gl_vboSubData( toolkit_vbo, toolkit_vboColourOffset,
sizeof(GLfloat) * 4*16, colours );
/* Left side vertex. */
cx = x;
cy = y;
vertex[0] = cx + 21;
vertex[1] = cy + 0.6*w->h;
vertex[2] = cx + 21;
vertex[3] = cy;
vertex[4] = cx + 15;
vertex[5] = cy + 1;
vertex[6] = cx + 10;
vertex[7] = cy + 3;
vertex[8] = cx + 6;
vertex[9] = cy + 6;
vertex[10] = cx + 3;
vertex[11] = cy + 10;
vertex[12] = cx + 1;
vertex[13] = cy + 15;
vertex[14] = cx;
vertex[15] = cy + 21;
vertex[16] = cx;
vertex[17] = cy + 0.6*w->h;
vertex[18] = cx;
cy = y + w->h;
vertex[19] = cy - 21;
vertex[20] = cx + 1;
vertex[21] = cy - 15;
vertex[22] = cx + 3;
vertex[23] = cy - 10;
vertex[24] = cx + 6;
vertex[25] = cy - 6;
vertex[26] = cx + 10;
vertex[27] = cy - 3;
vertex[28] = cx + 15;
vertex[29] = cy - 1;
vertex[30] = cx + 21;
vertex[31] = cy;
gl_vboSubData( toolkit_vbo, 0, sizeof(GLint) * 2*16, vertex );
glDrawArrays( GL_POLYGON, 0, 16 );
/* Right side vertex. */
cx = x + w->w;
cy = y;
vertex[0] = cx - 21;
vertex[1] = cy + 0.6*w->h;
vertex[2] = cx - 21;
vertex[3] = cy;
vertex[4] = cx - 15;
vertex[5] = cy + 1;
vertex[6] = cx - 10;
vertex[7] = cy + 3;
vertex[8] = cx - 6;
vertex[9] = cy + 6;
vertex[10] = cx - 3;
vertex[11] = cy + 10;
vertex[12] = cx - 1;
vertex[13] = cy + 15;
vertex[14] = cx;
vertex[15] = cy + 21;
vertex[16] = cx;
vertex[17] = cy + 0.6*w->h;
vertex[18] = cx;
cy = y + w->h;
vertex[19] = cy - 21;
vertex[20] = cx - 1;
vertex[21] = cy - 15;
vertex[22] = cx - 3;
vertex[23] = cy - 10;
vertex[24] = cx - 6;
vertex[25] = cy - 6;
vertex[26] = cx - 10;
vertex[27] = cy - 3;
vertex[28] = cx - 15;
vertex[29] = cy - 1;
vertex[30] = cx - 21;
vertex[31] = cy;
gl_vboSubData( toolkit_vbo, 0, sizeof(GLint) * 2*16, vertex );
glDrawArrays( GL_POLYGON, 0, 16 );
/*
* inner outline
*/
/* Colour. */
for (i=0; i<7; i++) {
colours[4*i + 0] = c->r;
colours[4*i + 1] = c->g;
colours[4*i + 2] = c->b;
colours[4*i + 3] = c->a;
}
for (; i<7+16; i++) {
colours[4*i + 0] = lc->r;
colours[4*i + 1] = lc->g;
colours[4*i + 2] = lc->b;
colours[4*i + 3] = lc->a;
}
for (; i<7+16+8; i++) {
colours[4*i + 0] = c->r;
colours[4*i + 1] = c->g;
colours[4*i + 2] = c->b;
colours[4*i + 3] = c->a;
}
gl_vboSubData( toolkit_vbo, toolkit_vboColourOffset,
sizeof(GLfloat) * 4*31, colours );
/* Vertex. */
/* Left side. */
cx = x + 1;
cy = y + 1;
vertex[0] = cx + 21;
vertex[1] = cy;
vertex[2] = cx + 15;
vertex[3] = cy + 1;
vertex[4] = cx + 10;
vertex[5] = cy + 3;
vertex[6] = cx + 6;
vertex[7] = cy + 6;
vertex[8] = cx + 3;
vertex[9] = cy + 10;
vertex[10] = cx + 1;
vertex[11] = cy + 15;
vertex[12] = cx;
vertex[13] = cy + 21;
vertex[14] = cx;
vertex[15] = cy + 0.6*w->h - 1;
cy = y + w->h - 1;
vertex[16] = cx;
vertex[17] = cy - 21;
vertex[18] = cx + 1;
vertex[19] = cy - 15;
vertex[20] = cx + 3;
vertex[21] = cy - 10;
vertex[22] = cx + 6;
vertex[23] = cy - 6;
vertex[24] = cx + 10;
vertex[25] = cy - 3;
vertex[26] = cx + 15;
vertex[27] = cy - 1;
vertex[28] = cx + 21;
vertex[29] = cy;
/* Right side via top. */
cx = x + w->w - 1;
cy = y + w->h - 1;
vertex[30] = cx - 21;
vertex[31] = cy;
vertex[32] = cx - 15;
vertex[33] = cy - 1;
vertex[34] = cx - 10;
vertex[35] = cy - 3;
vertex[36] = cx - 6;
vertex[37] = cy - 6;
vertex[38] = cx - 3;
vertex[39] = cy - 10;
vertex[40] = cx - 1;
vertex[41] = cy - 15;
vertex[42] = cx;
vertex[43] = cy - 21;
cy = y + 1;
vertex[44] = cx;
vertex[45] = cy + 0.6*w->h - 1;
vertex[46] = cx;
vertex[47] = cy + 21;
vertex[48] = cx - 1;
vertex[49] = cy + 15;
vertex[50] = cx - 3;
vertex[51] = cy + 10;
vertex[52] = cx - 6;
vertex[53] = cy + 6;
vertex[54] = cx - 10;
vertex[55] = cy + 3;
vertex[56] = cx - 15;
vertex[57] = cy + 1;
vertex[58] = cx - 21;
vertex[59] = cy;
cx = x + 1;
cy = y + 1;
vertex[60] = cx + 21;
vertex[61] = cy;
gl_vboSubData( toolkit_vbo, 0, sizeof(GLint) * 2*31, vertex );
glDrawArrays( GL_LINE_LOOP, 0, 31 );
/*
* outter outline
*/
glShadeModel(GL_FLAT);
/* Colour. */
for (i=0; i<31; i++) {
colours[4*i + 0] = oc->r;
colours[4*i + 1] = oc->g;
colours[4*i + 2] = oc->b;
colours[4*i + 3] = oc->a;
}
gl_vboSubData( toolkit_vbo, toolkit_vboColourOffset,
sizeof(GLfloat) * 4*31, colours );
/* Vertex. */
/* Left side. */
cx = x;
cy = y;
vertex[0] = cx + 21;
vertex[1] = cy;
vertex[2] = cx + 15;
vertex[3] = cy + 1;
vertex[4] = cx + 10;
vertex[5] = cy + 3;
vertex[6] = cx + 6;
vertex[7] = cy + 6;
vertex[8] = cx + 3;
vertex[9] = cy + 10;
vertex[10] = cx + 1;
vertex[11] = cy + 15;
vertex[12] = cx;
vertex[13] = cy + 21;
vertex[14] = cx;
vertex[15] = cy + 0.6*w->h;
cy = y + w->h;
vertex[16] = cx;
vertex[17] = cy - 21;
vertex[18] = cx + 1;
vertex[19] = cy - 15;
vertex[20] = cx + 3;
vertex[21] = cy - 10;
vertex[22] = cx + 6;
vertex[23] = cy - 6;
vertex[24] = cx + 10;
vertex[25] = cy - 3;
vertex[26] = cx + 15;
vertex[27] = cy - 1;
vertex[28] = cx + 21;
vertex[29] = cy;
/* Right side via top. */
cx = x + w->w;
cy = y + w->h;
vertex[30] = cx - 21;
vertex[31] = cy;
vertex[32] = cx - 15;
vertex[33] = cy - 1;
vertex[34] = cx - 10;
vertex[35] = cy - 3;
vertex[36] = cx - 6;
vertex[37] = cy - 6;
vertex[38] = cx - 3;
vertex[39] = cy - 10;
vertex[40] = cx - 1;
vertex[41] = cy - 15;
vertex[42] = cx;
vertex[43] = cy - 21;
cy = y;
vertex[44] = cx;
vertex[45] = cy + 0.6*w->h;
vertex[46] = cx;
vertex[47] = cy + 21;
vertex[48] = cx - 1;
vertex[49] = cy + 15;
vertex[50] = cx - 3;
vertex[51] = cy + 10;
vertex[52] = cx - 6;
vertex[53] = cy + 6;
vertex[54] = cx - 10;
vertex[55] = cy + 3;
vertex[56] = cx - 15;
vertex[57] = cy + 1;
vertex[58] = cx - 21;
vertex[59] = cy;
cx = x;
cy = y;
vertex[60] = cx + 21;
vertex[61] = cy;
gl_vboSubData( toolkit_vbo, 0, sizeof(GLint) * 2*31, vertex );
glDrawArrays( GL_LINE_LOOP, 0, 31 );
/* Clean up. */
gl_vboDeactivate();
/*
* render window name
*/
gl_printMidRaw( &gl_defFont, w->w,
x + (double)SCREEN_W/2.,
y + w->h - 20. + (double)SCREEN_H/2.,
&cBlack, w->name );
}
