// 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);
}
MCGAffineTransform view_get_stack_transform(MCStackFullscreenMode p_mode, MCRectangle p_stack_rect, MCRectangle p_screen_rect)
{
MCGFloat t_scale;
MCGAffineTransform t_transform;
switch (p_mode)
{
case kMCStackFullscreenModeNone:
return MCGAffineTransformMakeIdentity();
case kMCStackFullscreenResize:
return MCGAffineTransformMakeIdentity();
case kMCStackFullscreenExactFit:
return MCGAffineTransformMakeScale((MCGFloat)p_screen_rect.width / (MCGFloat)p_stack_rect.width, (MCGFloat)p_screen_rect.height / (MCGFloat)p_stack_rect.height);
case kMCStackFullscreenLetterbox:
case kMCStackFullscreenShowAll:
t_scale = MCMin((MCGFloat)p_screen_rect.width / (MCGFloat)p_stack_rect.width, (MCGFloat)p_screen_rect.height / (MCGFloat)p_stack_rect.height);
t_transform = MCGAffineTransformMakeTranslation(-(MCGFloat)p_stack_rect.width / 2.0, -(MCGFloat)p_stack_rect.height / 2.0);
t_transform = MCGAffineTransformPreScale(t_transform, t_scale, t_scale);
t_transform = MCGAffineTransformPreTranslate(t_transform, (MCGFloat)p_screen_rect.width / 2.0, (MCGFloat)p_screen_rect.height / 2.0);
return t_transform;
case kMCStackFullscreenNoBorder:
t_scale = MCMax((MCGFloat)p_screen_rect.width / (MCGFloat)p_stack_rect.width, (MCGFloat)p_screen_rect.height / (MCGFloat)p_stack_rect.height);
t_transform = MCGAffineTransformMakeTranslation(-(MCGFloat)p_stack_rect.width / 2.0, -(MCGFloat)p_stack_rect.height / 2.0);
t_transform = MCGAffineTransformPreScale(t_transform, t_scale, t_scale);
t_transform = MCGAffineTransformPreTranslate(t_transform, (MCGFloat)p_screen_rect.width / 2.0, (MCGFloat)p_screen_rect.height / 2.0);
return t_transform;
case kMCStackFullscreenNoScale:
// offset so stack is centered in screen
MCRectangle t_rect;
t_rect = MCU_center_rect(p_screen_rect, p_stack_rect);
// IM-2013-12-19: [[ Bug 11590 ]] Adjust for screen rect origins other than 0,0
return MCGAffineTransformMakeTranslation(t_rect.x - p_screen_rect.x, t_rect.y - p_screen_rect.y);
default:
MCUnreachableReturn(MCGAffineTransformMakeIdentity());
}
}
bool MCWin32ApplyMaskToRasterRegion(MCGRaster &p_raster, uint32_t p_x_origin, uint32_t p_y_origin, const MCGRaster &p_mask, MCRegionRef p_region)
{
// IM-2013-09-11: [[ ResIndependence ]] reduce mask params to single MCGRaster
bool t_success;
t_success = true;
MCGContextRef t_gcontext;
t_gcontext = nil;
if (t_success)
t_success = MCGContextCreateWithRaster(p_raster, t_gcontext);
MCGImageRef t_mask_image;
t_mask_image = nil;
if (t_success)
t_success = MCGImageCreateWithRasterNoCopy(p_mask, t_mask_image);
if (t_success)
{
// IM-2013-09-11: [[ ResIndependence ]] Apply scaled mask to target raster.
// Drawing the mask directly will not work as the effective shape of the drawing operation
// will be defined by the opaque parts of the mask - areas outside will be unaffected. Instead we
// draw a solid rectangle over the intended areas using the mask as a pattern.
MCGFloat t_scale;
t_scale = MCResGetPixelScale();
MCGContextSetFillPattern(t_gcontext, t_mask_image, MCGAffineTransformMakeScale(t_scale, t_scale), kMCGImageFilterNearest);
MCGContextTranslateCTM(t_gcontext, -(MCGFloat)p_x_origin, -(MCGFloat)p_y_origin);
MCGContextSetBlendMode(t_gcontext, kMCGBlendModeDestinationIn);
t_success = MCRegionForEachRect(p_region, __MCApplyMaskCallback, t_gcontext);
}
MCGImageRelease(t_mask_image);
MCGContextRelease(t_gcontext);
return t_success;
}
MCPoint MCScreenDC::screentologicalpoint(const MCPoint &p_point)
{
MCGFloat t_scale;
t_scale = 1 / MCWin32GetLogicalToScreenScale();
return MCPointTransform(p_point, MCGAffineTransformMakeScale(t_scale, t_scale));
}