mirror of https://github.com/fltk/fltk
Mac OS: exact implementation of the Fl::screen_dpi() function.
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@8619 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
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FL/mac.H
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FL/mac.H
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@ -143,7 +143,6 @@ public:
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void contains_GL_subwindow(void);
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void set_key_window(void);
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void set_cursor(Fl_Cursor);
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static int screen_init(XRectangle screens[], float dpi[]);
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static CGImageRef CGImage_from_window_rect(Fl_Window *win, int x, int y, int w, int h);
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static unsigned char *bitmap_from_window_rect(Fl_Window *win, int x, int y, int w, int h, int *bytesPerPixel);
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static Fl_Region intersect_region_and_rect(Fl_Region current, int x,int y,int w, int h);
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@ -2823,37 +2823,6 @@ void Fl_X::set_cursor(Fl_Cursor c)
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cursor = icrsr;
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}
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int Fl_X::screen_init(XRectangle screens[], float dpi[])
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{
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NSAutoreleasePool *localPool = [[NSAutoreleasePool alloc] init];
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NSArray *a = [NSScreen screens];
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NSScreen *object;
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int count = (int)[a count];
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NSRect r;
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int i, num_screens = 0;
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for( i = 0; i < count; i++) {
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object = (NSScreen*)[a objectAtIndex:i];
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r = [object frame];
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screens[num_screens].x = int(r.origin.x);
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screens[num_screens].y = int(r.size.height - (r.origin.y + r.size.height));
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screens[num_screens].width = int(r.size.width);
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screens[num_screens].height = int(r.size.height);
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#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4
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if ([object respondsToSelector:@selector(userSpaceScaleFactor)]) {
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dpi[num_screens] = float([object userSpaceScaleFactor])*72.0f;
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} else
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#endif
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{
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dpi[num_screens] = 72.0f;
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}
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num_screens ++;
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if (num_screens >= 16) break;
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}
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[localPool release];
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return num_screens;
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}
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@interface FLaboutItemTarget : NSObject
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{
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}
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@ -118,10 +118,25 @@ static void screen_init() {
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}
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#elif defined(__APPLE__)
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static XRectangle screens[16];
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static float dpi[16];
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static float dpi_h[16];
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static float dpi_v[16];
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static void screen_init() {
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num_screens = Fl_X::screen_init(screens, dpi);
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CGDirectDisplayID displays[16];
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CGDisplayCount count, i;
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CGRect r;
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CGGetActiveDisplayList(16, displays, &count);
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for( i = 0; i < count; i++) {
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r = CGDisplayBounds(displays[i]);
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screens[i].x = int(r.origin.x);
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screens[i].y = int(r.size.height - (r.origin.y + r.size.height));
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screens[i].width = int(r.size.width);
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screens[i].height = int(r.size.height);
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CGSize s = CGDisplayScreenSize(displays[i]);
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dpi_h[i] = screens[i].width / (s.width/25.4);
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dpi_v[i] = screens[i].height / (s.height/25.4);
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}
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num_screens = count;
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}
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#elif HAVE_XINERAMA
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# include <X11/extensions/Xinerama.h>
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@ -338,7 +353,8 @@ void Fl::screen_dpi(float &h, float &v, int n)
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}
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#elif defined(__APPLE__)
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if (n >= 0 && n < num_screens) {
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h = v = dpi[n];
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h = dpi_h[n];
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v = dpi_v[n];
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}
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#elif HAVE_XINERAMA
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if (n >= 0 && n < num_screens) {
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