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Move Fl_Cocoa_Window_Driver::capture_titlebar_and_borders() to Fl_Cocoa_Window_Driver.cxx from Fl_cocoa.mm

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This commit is contained in:
ManoloFLTK 2019-06-12 10:02:11 +02:00
parent b238ec26e5
commit aa9f0a6962
2 changed files with 50 additions and 50 deletions
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50
src/Fl_cocoa.mm
View File

@ -4386,56 +4386,6 @@ void Fl_Cocoa_Window_Driver::draw_layer_to_context(CALayer *layer, CGContextRef
#endif
}
/* Returns images of the capture of the window title-bar.
On the Mac OS platform, left, bottom and right are returned NULL; top is returned with depth 4.
*/
void Fl_Cocoa_Window_Driver::capture_titlebar_and_borders(Fl_RGB_Image*& top, Fl_RGB_Image*& left, Fl_RGB_Image*& bottom, Fl_RGB_Image*& right)
{
left = bottom = right = NULL;
int htop = pWindow->decorated_h() - h();
CALayer *layer = get_titlebar_layer();
CGColorSpaceRef cspace = CGColorSpaceCreateDeviceRGB();
float s = Fl::screen_driver()->scale(screen_num());
int scaled_w = int(w() * s);
uchar *rgba = new uchar[4 * scaled_w * htop * 4];
CGContextRef auxgc = CGBitmapContextCreate(rgba, 2 * scaled_w, 2 * htop, 8, 8 * scaled_w, cspace, kCGImageAlphaPremultipliedLast);
CGColorSpaceRelease(cspace);
CGContextClearRect(auxgc, CGRectMake(0,0,2*scaled_w,2*htop));
CGContextScaleCTM(auxgc, 2, 2);
if (layer) {
Fl_Cocoa_Window_Driver::draw_layer_to_context(layer, auxgc, scaled_w, htop);
if (fl_mac_os_version >= 101300) {
// drawn layer is left transparent and alpha-premultiplied: demultiply it and set it opaque.
uchar *p = rgba;
uchar *last = rgba + 4 * scaled_w * htop * 4;
while (p < last) {
uchar q = *(p+3);
if (q) {
float m = 255./q;
*p++ *= m;
*p++ *= m;
*p++ *= m;
*p++ = 0xff;
} else p += 4;
}
}
} else {
Fl_Graphics_Driver::default_driver().scale(1);
CGImageRef img = CGImage_from_window_rect(0, -htop, scaled_w, htop, false);
Fl_Graphics_Driver::default_driver().scale(s);
CGContextSaveGState(auxgc);
clip_to_rounded_corners(auxgc, scaled_w, htop);
CGContextDrawImage(auxgc, CGRectMake(0, 0, scaled_w, htop), img);
CGContextRestoreGState(auxgc);
CFRelease(img);
}
top = new Fl_RGB_Image(rgba, 2 * scaled_w, 2 * htop, 4);
top->alloc_array = 1;
top->scale(w(),htop, s <1 ? 0 : 1, 1);
CGContextRelease(auxgc);
}
void Fl_Cocoa_Window_Driver::gl_start(NSOpenGLContext *ctxt) {
#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_8
if (views_use_CA) {

50
src/drivers/Cocoa/Fl_Cocoa_Window_Driver.cxx
View File

@ -19,6 +19,7 @@
#include "../../config_lib.h"
#include "Fl_Cocoa_Window_Driver.H"
#include "../../Fl_Screen_Driver.H"
#include "../Quartz/Fl_Quartz_Graphics_Driver.H"
#include <FL/Fl_Double_Window.H>
#include <FL/Fl_Overlay_Window.H>
@ -317,6 +318,55 @@ const Fl_Image* Fl_Cocoa_Window_Driver::shape() {
return shape_data_ ? shape_data_->shape_ : NULL;
}
/* Returns images of the capture of the window title-bar.
On the Mac OS platform, left, bottom and right are returned NULL; top is returned with depth 4.
*/
void Fl_Cocoa_Window_Driver::capture_titlebar_and_borders(Fl_RGB_Image*& top, Fl_RGB_Image*& left, Fl_RGB_Image*& bottom, Fl_RGB_Image*& right)
{
left = bottom = right = NULL;
int htop = pWindow->decorated_h() - h();
CALayer *layer = get_titlebar_layer();
CGColorSpaceRef cspace = CGColorSpaceCreateDeviceRGB();
float s = Fl::screen_driver()->scale(screen_num());
int scaled_w = int(w() * s);
uchar *rgba = new uchar[4 * scaled_w * htop * 4];
CGContextRef auxgc = CGBitmapContextCreate(rgba, 2 * scaled_w, 2 * htop, 8, 8 * scaled_w, cspace, kCGImageAlphaPremultipliedLast);
CGColorSpaceRelease(cspace);
CGContextClearRect(auxgc, CGRectMake(0,0,2*scaled_w,2*htop));
CGContextScaleCTM(auxgc, 2, 2);
if (layer) {
Fl_Cocoa_Window_Driver::draw_layer_to_context(layer, auxgc, scaled_w, htop);
if (fl_mac_os_version >= 101300) {
// drawn layer is left transparent and alpha-premultiplied: demultiply it and set it opaque.
uchar *p = rgba;
uchar *last = rgba + 4 * scaled_w * htop * 4;
while (p < last) {
uchar q = *(p+3);
if (q) {
float m = 255./q;
*p++ *= m;
*p++ *= m;
*p++ *= m;
*p++ = 0xff;
} else p += 4;
}
}
} else {
Fl_Graphics_Driver::default_driver().scale(1);
CGImageRef img = CGImage_from_window_rect(0, -htop, scaled_w, htop, false);
Fl_Graphics_Driver::default_driver().scale(s);
CGContextSaveGState(auxgc);
clip_to_rounded_corners(auxgc, scaled_w, htop);
CGContextDrawImage(auxgc, CGRectMake(0, 0, scaled_w, htop), img);
CGContextRestoreGState(auxgc);
CFRelease(img);
}
top = new Fl_RGB_Image(rgba, 2 * scaled_w, 2 * htop, 4);
top->alloc_array = 1;
top->scale(w(),htop, s <1 ? 0 : 1, 1);
CGContextRelease(auxgc);
}
//
// End of "$Id$".
//