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Merge pull request #400 from go-vgo/bitmap-pr

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add Linux high DPI support and only windows use scaled()
This commit is contained in:
Evans 2021-11-16 15:16:18 -05:00 committed by GitHub
commit 0c235cb43a
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4 changed files with 55 additions and 23 deletions
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26
robotgo.go
View File

@ -221,7 +221,7 @@ func GetMouseColor() string {
return GetPixelColor(x, y)
}
// SysScale get the sys scale (x11 todo)
// SysScale get the sys scale
func SysScale() float64 {
s := C.sys_scale()
return float64(s)
@ -229,7 +229,12 @@ func SysScale() float64 {
// Scaled get the screen scaled size
func Scaled(x int) int {
return int(float64(x) * ScaleF())
return Scaled0(x, ScaleF())
}
// Scaled0 return int(x * f)
func Scaled0(x int, f float64) int {
return int(float64(x) * f)
}
// GetScreenSize get the screen size
@ -247,15 +252,16 @@ func GetScreenRect(displayId ...int) Rect {
}
rect := C.getScreenRect(C.int32_t(display))
x, y, w, h := int(rect.origin.x), int(rect.origin.y),
int(rect.size.w), int(rect.size.h)
if runtime.GOOS == "windows" {
f := ScaleF()
x, y, w, h = Scaled0(x, f), Scaled0(y, f), Scaled0(w, f), Scaled0(h, f)
}
return Rect{
Point{
X: Scaled(int(rect.origin.x)),
Y: Scaled(int(rect.origin.y)),
},
Size{
W: Scaled(int(rect.size.w)),
H: Scaled(int(rect.size.h)),
},
Point{X: x, Y: y},
Size{W: w, H: h},
}
}

6
robotgo_mac.go
View File

@ -15,5 +15,9 @@ package robotgo
// ScaleF get the system scale val
func ScaleF() float64 {
return SysScale()
f := SysScale()
if f == 0.0 {
f = 1.0
}
return f
}

6
robotgo_win.go
View File

@ -54,7 +54,11 @@ func SetFocus(hwnd win.HWND) win.HWND {
// ScaleF get the system scale val
func ScaleF() float64 {
return float64(GetMainDPI()) / 96.0
f := float64(GetMainDPI()) / 96.0
if f == 0.0 {
f = 1.0
}
return f
}
// GetMainDPI get the display dpi

40
window/win_sys.h
View File

@ -9,6 +9,11 @@
// except according to those terms.
// #include "../base/os.h"
#if defined(USE_X11)
// #include <X11/Xlib.h>
// #include <X11/Xatom.h>
#include <X11/Xresource.h>
#endif
Bounds get_client(uintptr pid, uintptr isHwnd);
@ -38,21 +43,34 @@ double sys_scale() {
return pixelWidth / targetWidth;
#elif defined(USE_X11)
// double xres;
// Display *dpy;
double xres;
Display *dpy;
// char *displayname = NULL;
// int scr = 0; /* Screen number */
char *displayname = NULL;
int scr = 0; /* Screen number */
// dpy = XOpenDisplay (displayname);
// xres = ((((double) DisplayWidth(dpy, scr)) * 25.4) /
// ((double) DisplayWidthMM(dpy, scr)));
dpy = XOpenDisplay(displayname);
xres = ((((double) DisplayWidth(dpy, scr)) * 25.4) /
((double) DisplayWidthMM(dpy, scr)));
// XCloseDisplay (dpy);
// https://github.com/glfw/glfw/issues/1019#issuecomment-302772498
char *rms = XResourceManagerString(dpy);
if (rms) {
XrmDatabase db;
XrmValue value;
char *type = NULL;
// return xres / 96.0;
return 1.0;
XrmInitialize(); /* Need to initialize the DB before calling Xrm* functions */
db = XrmGetStringDatabase(rms);
if (XrmGetResource(db, "Xft.dpi", "String", &type, &value) == True) {
if (value.addr) {
xres = atof(value.addr);
}
}
}
XCloseDisplay (dpy);
return xres / 96.0;
#elif defined(IS_WINDOWS)
double s = scaleX() / 96.0;
return s;