// IM-2014-01-16: [[ StackScale ]] Utility method to calculate new rects and view transform
void MCStack::view_calculate_viewports(const MCRectangle &p_stack_rect, MCRectangle &r_adjusted_stack_rect, MCRectangle &r_view_rect, MCGAffineTransform &r_transform)
{
MCRectangle t_view_rect;
MCGAffineTransform t_transform;
t_transform = MCGAffineTransformMakeScale(m_view_content_scale, m_view_content_scale);
MCRectangle t_stack_rect;
// IM-2014-01-16: [[ StackScale ]] Constrain stack size within the min/max size
t_stack_rect = constrainstackrect(p_stack_rect);
// IM-2014-01-16: [[ StackScale ]] transform stack rect using scale factor
// IM-2014-02-13: [[ StackScale ]] Use MCGRectangle to avoid resizing due to rounding errors
MCGRectangle t_scaled_rect;
t_scaled_rect = MCGRectangleApplyAffineTransform(MCRectangleToMCGRectangle(t_stack_rect), t_transform);
t_scaled_rect = view_constrainstackviewport(t_scaled_rect);
MCStackFullscreenMode t_mode;
if (view_getfullscreen())
{
t_mode = m_view_fullscreenmode;
const MCDisplay *t_display;
t_display = MCscreen -> getnearestdisplay(MCGRectangleGetIntegerInterior(t_scaled_rect));
t_view_rect = MCscreen->fullscreenrect(t_display);
// IM-2013-12-19: [[ Bug 11590 ]] Removed adjustment of screen rect to 0,0 origin
}
else
{
t_mode = kMCStackFullscreenModeNone;
t_view_rect = MCGRectangleGetIntegerInterior(t_scaled_rect);
}
// IM-2014-01-16: [[ StackScale ]] store adjusted rect in stack coords
MCGRectangle t_adjusted;
t_adjusted = MCGRectangleApplyAffineTransform(t_scaled_rect, MCGAffineTransformInvert(t_transform));
r_adjusted_stack_rect = MCGRectangleGetIntegerRect(t_adjusted);
r_view_rect = t_view_rect;
// IM-2014-01-16: [[ StackScale ]] append scale transform to fullscreenmode transform
r_transform = MCGAffineTransformConcat(view_get_stack_transform(t_mode, MCGRectangleGetIntegerBounds(t_scaled_rect), t_view_rect), t_transform);
}
void MCUIDC::boundrect(MCRectangle &x_rect, Boolean p_title, Window_mode p_mode)
{
MCRectangle t_rect;
t_rect = MCGRectangleGetIntegerInterior(MCResUserToDeviceRect(x_rect));
MCscreen->device_boundrect(t_rect, p_title, p_mode);
x_rect = MCGRectangleGetIntegerBounds(MCResDeviceToUserRect(t_rect));
}
// IM-2014-02-13: [[ StackScale ]] Update to work with MCGRectangles
MCGRectangle MCStack::view_constrainstackviewport(const MCGRectangle &p_rect)
{
// IM-2014-01-16: [[ StackScale ]] stack rect now constrained to min/max size elsewhere
MCGRectangle t_stackrect;
t_stackrect = p_rect;
// MW-2012-10-04: [[ Bug 10436 ]] Make sure we constrain stack size to screen size
// if in fullscreen mode.
MCGRectangle t_new_rect;
if (view_getfullscreen())
{
const MCDisplay *t_display;
t_display = MCscreen -> getnearestdisplay(MCGRectangleGetIntegerInterior(t_stackrect));
switch (m_view_fullscreenmode)
{
case kMCStackFullscreenResize:
// resize stack to fullscreen rect
t_new_rect = MCRectangleToMCGRectangle(MCscreen->fullscreenrect(t_display));
break;
case kMCStackFullscreenNoScale:
// center rect on screen
t_new_rect = MCGRectangleCenterOnRect(t_stackrect, MCRectangleToMCGRectangle(MCscreen->fullscreenrect(t_display)));
break;
case kMCStackFullscreenExactFit:
case kMCStackFullscreenLetterbox:
case kMCStackFullscreenNoBorder:
case kMCStackFullscreenShowAll:
// scaling modes should return the requested stack rect
t_new_rect = t_stackrect;
break;
default:
MCAssert(false);
}
}
else
{
// IM-2014-02-28: [[ Bug 11844 ]] Don't constrain stack rect here unless fullscreen
t_new_rect = t_stackrect;
}
return t_new_rect;
}
void MCStack::composite(void)
{
if (m_window_shape == nil || m_window_shape -> is_sharp || m_window_shape -> handle == nil)
return;
POINT t_offset;
POINT t_location;
SIZE t_size;
HDC t_dst_dc;
t_dst_dc = ((MCScreenDC *)MCscreen) -> getdsthdc();
HGDIOBJ t_old_dst;
HBITMAP t_bitmap;
t_bitmap = (HBITMAP)m_window_shape -> handle;
t_old_dst = SelectObject(t_dst_dc, t_bitmap);
MCRectangle t_device_stack_rect;
t_device_stack_rect = MCGRectangleGetIntegerInterior(MCResUserToDeviceRect(rect));
MCRectangle t_device_shape_rect;
t_device_shape_rect = MCGRectangleGetIntegerBounds(MCResUserToDeviceRect(MCRectangleMake(0, 0, m_window_shape->width, m_window_shape->height)));
t_offset . x = 0;
t_offset . y = 0;
t_location . x = t_device_stack_rect . x;
t_location . y = t_device_stack_rect . y;
t_size . cx = t_device_shape_rect . width;;
t_size . cy = t_device_shape_rect . height;
BLENDFUNCTION t_blend;
t_blend . BlendOp = AC_SRC_OVER;
t_blend . BlendFlags = 0;
t_blend . SourceConstantAlpha = blendlevel * 255 / 100;
t_blend . AlphaFormat = AC_SRC_ALPHA;
UpdateLayeredWindow((HWND)window -> handle . window, t_dst_dc, &t_location, &t_size, t_dst_dc, &t_offset, 0, &t_blend, ULW_ALPHA);
SelectObject(t_dst_dc, t_old_dst);
}
