/**
* @brief Tries to scroll a widget up/down by direction.
*
* @param wgt Widget to scroll.
* @param direction Direction to scroll. Positive is up, negative
* is down and absolute value is number of elements to scroll.
*/
static void iar_scroll( Widget* iar, int direction )
{
double w,h;
int yelem;
double hmax;
if (iar == NULL)
return;
/* element dimensions */
iar_getDim( iar, &w, &h );
/* number of elements */
yelem = iar->dat.iar.yelem;
/* maximum */
hmax = h * (yelem - (int)(iar->h / h));
if (hmax < 0.)
hmax = 0.;
/* move */
iar->dat.iar.pos -= direction * h;
/* Boundary check. */
iar->dat.iar.pos = CLAMP( 0., hmax, iar->dat.iar.pos );
if (iar->dat.iar.fptr)
iar->dat.iar.fptr( iar->wdw, iar->name );
}
/**
* @brief Centers on the selection if needed.
*
* @param iar Widget to center on selection.
*/
static void iar_centerSelected( Widget *iar )
{
int y;
double h;
double hmax;
double ypos;
/* Get dimensions. */
iar_getDim( iar, NULL, &h );
/* Ignore fancy stuff if smaller than height. */
if (h * iar->dat.iar.yelem < iar->h)
return;
/* Move if needed. */
hmax = h * (iar->dat.iar.yelem - (int)(iar->h / h));
y = iar->dat.iar.selected / iar->dat.iar.xelem;
ypos = y * h;
/* Below. */
if (ypos < iar->dat.iar.pos)
iar->dat.iar.pos = ypos;
/* Above. */
if (ypos > iar->dat.iar.pos + iar->h - h)
iar->dat.iar.pos = ypos - h*floor(iar->h/h) + 10.;
iar->dat.iar.pos = CLAMP( 0., hmax, iar->dat.iar.pos );
}
/**
* @brief Mouse event focus on image array.
*
* @param iar Image Array widget.
* @param bx X position click.
* @param by Y position click.
*/
static void iar_focus( Widget* iar, double bx, double by )
{
double y, h;
double scroll_pos, hmax;
int yelem;
int selected;
/* element dimensions */
iar_getDim( iar, NULL, &h );
/* number of elements */
yelem = iar->dat.iar.yelem;
/* Test for item click. */
selected = iar_focusImage( iar, bx, by );
if (selected >= 0) {
iar->dat.iar.selected = selected;
if (iar->dat.iar.fptr != NULL)
iar->dat.iar.fptr( iar->wdw, iar->name );
}
/* Scrollbar click. */
else if (bx > iar->w - 10.) {
/* Get bar position (center). */
hmax = h * (yelem - (int)(iar->h / h));
if (fabs(hmax) < 1e-05)
scroll_pos = 0.;
else
scroll_pos = iar->dat.iar.pos / hmax;
y = iar->h - (iar->h - 30.) * scroll_pos - 15.;
/* Click below the bar. */
if (by < y-15.)
iar_scroll( iar, -2 );
/* Click above the bar. */
else if (by > y+15.)
iar_scroll( iar, +2 );
/* Click on the bar. */
else
iar->status = WIDGET_STATUS_SCROLLING;
}
}
/**
* @brief See what widget is being focused.
*/
static int iar_focusImage( Widget* iar, double bx, double by )
{
int i,j;
double y, w,h, ycurs,xcurs;
int xelem, yelem;
double xspace;
/* positions */
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);
if (bx < iar->w - 10.) {
/* Loop through elements until finding collision. */
ycurs = iar->h - h + iar->dat.iar.pos;
for (j=0; j<yelem; j++) {
xcurs = xspace;
for (i=0; i<xelem; i++) {
/* Out of elements. */
if ((j*xelem + i) >= iar->dat.iar.nelements)
break;
/* Check for collision. */
if ((bx > xcurs) && (bx < xcurs+w-4.) &&
(by > ycurs) && (by < ycurs+h-4.)) {
return j*xelem + i;
}
xcurs += xspace + w;
}
ycurs -= h;
}
}
return -1;
}
/**
* @brief Handles mouse movement for an image array.
*
* @param iar Widget handling the mouse motion.
* @param mmove Mouse motion event to handle.
* @return 1 if the event is used.
*/
static int iar_mmove( Widget* iar, int x, int y, int rx, int ry )
{
(void) rx;
(void) ry;
double w,h;
int xelem, yelem;
double hmax;
if (iar->status == WIDGET_STATUS_SCROLLING) {
y = CLAMP( 15, iar->h - 15., iar->h - y );
/* element dimensions */
iar_getDim( iar, &w, &h );
/* number of elements */
xelem = iar->dat.iar.xelem;
yelem = iar->dat.iar.yelem;
hmax = h * (yelem - (int)(iar->h / h));
iar->dat.iar.pos = (y - 15.) * hmax / (iar->h - 30.);
/* Does boundry checks. */
iar_scroll( iar, 0 );
return 1;
}
else {
if ((x < 0) || (x >= iar->w) || (y < 0) || (y >= iar->h))
iar->dat.iar.alt = -1;
else {
iar->dat.iar.alt = iar_focusImage( iar, x, y );
iar->dat.iar.altx = x;
iar->dat.iar.alty = y;
}
}
return 0;
}
/**
* @brief Sets the Image Array offset.
*/
int toolkit_setImageArrayOffset( const unsigned int wid, const char* name, double off )
{
double h;
double hmax;
Widget *wgt = iar_getWidget( wid, name );
if (wgt == NULL)
return -1;
/* Get dimensions. */
iar_getDim( wgt, NULL, &h );
/* Ignore fancy stuff if smaller than height. */
if (h * wgt->dat.iar.yelem < wgt->h) {
wgt->dat.iar.pos = 0.;
return 0;
}
/* Move if needed. */
hmax = h * (wgt->dat.iar.yelem - (int)(wgt->h / h));
wgt->dat.iar.pos = CLAMP( 0., hmax, off );
return 0;
}
/**
* @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 );
}
