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wails/v3/pkg/application/screen_linux_purego.go
2023-05-10 09:10:03 -05:00

93 lines
2.2 KiB
Go

//go:build linux && purego
package application
import (
"fmt"
"sync"
"unsafe"
"github.com/ebitengine/purego"
)
func (m *linuxApp) getPrimaryScreen() (*Screen, error) {
return nil, fmt.Errorf("not implemented")
}
func (m *linuxApp) getScreenByIndex(display uintptr, index int) *Screen {
fmt.Println("getScreenByIndex")
var getMonitor func(uintptr, int) uintptr
purego.RegisterLibFunc(&getMonitor, gtk, "gdk_display_get_monitor")
monitor := getMonitor(display, index)
// TODO: Do we need to update Screen to contain current info?
// currentMonitor := C.gdk_display_get_monitor_at_window(display, window)
var getGeometry func(uintptr, uintptr)
purego.RegisterLibFunc(&getGeometry, gtk, "gdk_monitor_get_geometry")
//var geometry C.GdkRectangle
/*
struct GdkRectangle {
int x;
int y;
int width;
int height;
}
*/
geometry := make([]byte, 16)
getGeometry(monitor, uintptr(unsafe.Pointer(&geometry[0])))
fmt.Println("geometry: %v\n", geometry)
var isPrimary func(uintptr) int
purego.RegisterLibFunc(&isPrimary, gtk, "gdk_monitor_is_primary")
primary := false
if isPrimary(monitor) == 1 {
primary = true
}
return &Screen{
IsPrimary: primary,
Scale: 1.0,
X: 0, //int(geometry.x),
Y: 0, //int(geometry.y),
Size: Size{
Height: 1024, //int(geometry.height),
Width: 1024, //int(geometry.width),
},
}
}
func (m *linuxApp) getScreens() ([]*Screen, error) {
fmt.Println("getScreens")
var wg sync.WaitGroup
var screens []*Screen
wg.Add(1)
var getWindow func(uintptr) uintptr
purego.RegisterLibFunc(&getWindow, gtk, "gtk_application_get_active_window")
var getDisplay func(uintptr) uintptr
purego.RegisterLibFunc(&getDisplay, gtk, "gdk_window_get_display")
var getMonitorCount func(uintptr) int
purego.RegisterLibFunc(&getMonitorCount, gtk, "getNMonitors")
globalApplication.dispatchOnMainThread(func() {
window := getWindow(m.application)
display := getDisplay(window)
count := getMonitorCount(display)
for i := 0; i < int(count); i++ {
screens = append(screens,
m.getScreenByIndex(display, i),
)
}
wg.Done()
})
wg.Wait()
return screens, nil
}
func getScreenForWindow(window *linuxWebviewWindow) (*Screen, error) {
return window.getScreen()
}