/* Calculate new positions for all images.
*/
static void
set_new_positions(photopile_state *ss)
{
ModeInfo *mi = ss->mi;
int i;
for (i = 0; i < MI_COUNT(mi)+1; ++i)
{
image *frame = ss->frames + i;
GLfloat w = frame->w;
GLfloat h = frame->h;
GLfloat d = sqrt(w*w + h*h);
GLfloat leave = frand(M_PI * 2.0);
GLfloat enter = frand(M_PI * 2.0);
/* start position */
frame->pos[0] = frame->pos[3];
/* end position */
frame->pos[3].x = BELLRAND(MI_WIDTH(mi));
frame->pos[3].y = BELLRAND(MI_HEIGHT(mi));
frame->pos[3].angle = (frand(2.0) - 1.0) * max_tilt;
/* Try to keep the images mostly inside the screen bounds */
frame->pos[3].x = MAX(0.5*w, MIN(MI_WIDTH(mi)-0.5*w, frame->pos[3].x));
frame->pos[3].y = MAX(0.5*h, MIN(MI_HEIGHT(mi)-0.5*h, frame->pos[3].y));
/* intermediate points */
frame->pos[1] = offset_pos(frame->pos[0], leave, d * (0.5 + frand(1.0)));
frame->pos[2] = offset_pos(frame->pos[3], enter, d * (0.5 + frand(1.0)));
}
}
void wxRibbonGallery::OnPaint(wxPaintEvent& WXUNUSED(evt))
{
wxAutoBufferedPaintDC dc(this);
if(m_art == NULL)
return;
m_art->DrawGalleryBackground(dc, this, GetSize());
int padding_top = m_art->GetMetric(wxRIBBON_ART_GALLERY_BITMAP_PADDING_TOP_SIZE);
int padding_left = m_art->GetMetric(wxRIBBON_ART_GALLERY_BITMAP_PADDING_LEFT_SIZE);
dc.SetClippingRegion(m_client_rect);
bool offset_vertical = true;
if(m_art->GetFlags() & wxRIBBON_BAR_FLOW_VERTICAL)
offset_vertical = false;
size_t item_count = m_items.Count();
size_t item_i;
for(item_i = 0; item_i < item_count; ++item_i)
{
wxRibbonGalleryItem *item = m_items.Item(item_i);
if(!item->IsVisible())
continue;
const wxRect& pos = item->GetPosition();
wxRect offset_pos(pos);
if(offset_vertical)
offset_pos.SetTop(offset_pos.GetTop() - m_scroll_amount);
else
offset_pos.SetLeft(offset_pos.GetLeft() - m_scroll_amount);
m_art->DrawGalleryItemBackground(dc, this, offset_pos, item);
dc.DrawBitmap(item->GetBitmap(), offset_pos.GetLeft() + padding_left,
offset_pos.GetTop() + padding_top);
}
}
