feat: Added box showing select on selection mode

Author: imf4ll

cgo/mouse.c

@@ -1,9 +1,13 @@
 #include <stdio.h>
 #include <stdlib.h>
+#include <stdbool.h>
+#include <unistd.h>
 #include <X11/Xlib.h>
 #include <X11/Xutil.h>
 #include <X11/X.h>
 #include <X11/cursorfont.h>
+#include <cairo/cairo.h>
+#include <cairo/cairo-xlib.h>
 
 struct MousePosition {
     int x1,
@@ -38,7 +42,7 @@ struct MousePosition *getMouse(void) {
                             mousePosition->y2 = event.xbutton.y_root;
 
                         }
-
+                        
                         break;
                 }
 
@@ -49,6 +53,52 @@ struct MousePosition *getMouse(void) {
         }
     }
 
+    XVisualInfo vinfo;
+    if (!XMatchVisualInfo(display, DefaultScreen(display), 32, TrueColor, &vinfo)) {
+        printf("No visual found supporting 32 bit color, terminating\n");
+        exit(EXIT_FAILURE);
+    }
+
+    attrs.colormap = XCreateColormap(display, root, vinfo.visual, AllocNone);
+    attrs.background_pixel = 0;
+    attrs.border_pixel = 0;
+
+    Window overlay;
+
+    if (mousePosition->x1 < mousePosition->x2) {
+        overlay = XCreateWindow (
+            display, root,
+            mousePosition->x1, mousePosition->y1, mousePosition->x2 - mousePosition->x1, mousePosition->y2 - mousePosition->y1, 0,
+            vinfo.depth, InputOutput,
+            vinfo.visual,
+            CWOverrideRedirect | CWColormap | CWBackPixel | CWBorderPixel, &attrs
+        );
+    
+    } else {
+        overlay = XCreateWindow (
+            display, root,
+            mousePosition->x2, mousePosition->y2, mousePosition->x1 - mousePosition->x2, mousePosition->y1 - mousePosition->y2, 0,
+            vinfo.depth, InputOutput,
+            vinfo.visual,
+            CWOverrideRedirect | CWColormap | CWBackPixel | CWBorderPixel, &attrs
+        );
+    }
+
+    XMapWindow(display, overlay);
+
+    cairo_surface_t* surf = cairo_xlib_surface_create(display, overlay, vinfo.visual, 0, 0);
+    cairo_t* cr = cairo_create(surf);
+
+    XFlush(display);
+
+    sleep(1);
+
+    cairo_destroy(cr);
+    cairo_surface_destroy(surf);
+
+    XUnmapWindow(display, overlay);
+    XCloseDisplay(display);
+
     XUngrabPointer(display, CurrentTime);
 
     return mousePosition;
@@ -59,6 +109,9 @@ struct MousePosition *getMouseAndKeyboard(void) {
     Window root = XRootWindow(display, 0);
     XEvent event;
 
+    XSetWindowAttributes attrs;
+    attrs.override_redirect = true;
+
     Cursor cursor = XCreateFontCursor(display, XC_crosshair);
     XGrabPointer(display, root, False, ButtonPressMask, GrabModeAsync, GrabModeAsync, None, cursor, CurrentTime);
     XGrabKeyboard(display, root, KeyPressMask, GrabModeAsync, GrabModeAsync, CurrentTime);
@@ -98,6 +151,52 @@ struct MousePosition *getMouseAndKeyboard(void) {
         }
     }
 
+    XVisualInfo vinfo;
+    if (!XMatchVisualInfo(display, DefaultScreen(display), 32, TrueColor, &vinfo)) {
+        printf("No visual found supporting 32 bit color, terminating\n");
+        exit(EXIT_FAILURE);
+    }
+
+    attrs.colormap = XCreateColormap(display, root, vinfo.visual, AllocNone);
+    attrs.background_pixel = 0;
+    attrs.border_pixel = 0;
+
+    Window overlay;
+
+    if (mousePosition->x1 < mousePosition->x2) {
+        overlay = XCreateWindow (
+            display, root,
+            mousePosition->x1, mousePosition->y1, mousePosition->x2 - mousePosition->x1, mousePosition->y2 - mousePosition->y1, 0,
+            vinfo.depth, InputOutput,
+            vinfo.visual,
+            CWOverrideRedirect | CWColormap | CWBackPixel | CWBorderPixel, &attrs
+        );
+    
+    } else {
+        overlay = XCreateWindow (
+            display, root,
+            mousePosition->x2, mousePosition->y2, mousePosition->x1 - mousePosition->x2, mousePosition->y1 - mousePosition->y2, 0,
+            vinfo.depth, InputOutput,
+            vinfo.visual,
+            CWOverrideRedirect | CWColormap | CWBackPixel | CWBorderPixel, &attrs
+        );
+    }
+
+    XMapWindow(display, overlay);
+
+    cairo_surface_t* surf = cairo_xlib_surface_create(display, overlay, vinfo.visual, 0, 0);
+    cairo_t* cr = cairo_create(surf);
+
+    XFlush(display);
+
+    sleep(1);
+
+    cairo_destroy(cr);
+    cairo_surface_destroy(surf);
+
+    XUnmapWindow(display, overlay);
+    XCloseDisplay(display);
+
     XUngrabPointer(display, CurrentTime);
     XUngrabKeyboard(display, CurrentTime);
 

get/getMouse.go

@@ -1,7 +1,7 @@
 package get
 
 /*
-#cgo LDFLAGS: -lX11
+#cgo LDFLAGS: -lX11 -lcairo
 
 #include "../cgo/mouse.c"
 */
@@ -32,16 +32,16 @@ func GetMouse() MousePosition {
 }
 
 func GetMouseAndKeyboard() MousePosition {
-    var mousePos MousePosition
+    var mousePos MousePosition;
 
-    getMousePos := (*[1 << 1]C.struct_MousePosition)(unsafe.Pointer(C.getMouseAndKeyboard()))[0:1]
+    getMousePos := (*[1 << 1]C.struct_MousePosition)(unsafe.Pointer(C.getMouseAndKeyboard()))[0:1];
 
-    m := getMousePos[0]
+    m := getMousePos[0];
 
-    mousePos.X1 = int(m.x1)
-    mousePos.X2 = int(m.x2)
-    mousePos.Y1 = int(m.y1)
-    mousePos.Y2 = int(m.y2)
+    mousePos.X1 = int(m.x1);
+    mousePos.X2 = int(m.x2);
+    mousePos.Y1 = int(m.y1);
+    mousePos.Y2 = int(m.y2);
 
-    return mousePos
+    return mousePos;
 }

go.mod

@@ -1,6 +1,6 @@
 module github.com/imf4ll/ghost
 
-go 1.17
+go 1.19
 
 require fyne.io/fyne/v2 v2.1.4
 

modes/selection.go

@@ -9,9 +9,9 @@ import (
 )
 
 func Selection(filename string, clipboard, output, upload, file bool) {
-    var screenshot image.Image 
+    var screenshot image.Image;
 
-    m := get.GetMouseAndKeyboard()
+    m := get.GetMouseAndKeyboard();
 
     if m.X1 < m.X2 {
         screenshot = utils.CaptureRect (
@@ -20,7 +20,7 @@ func Selection(filename string, clipboard, output, upload, file bool) {
             m.X2 - m.X1,
             m.Y2 - m.Y1,
             filename,
-        )
+        );
 
     } else {
         screenshot = utils.CaptureRect (
@@ -29,9 +29,9 @@ func Selection(filename string, clipboard, output, upload, file bool) {
             m.X1 - m.X2,
             m.Y1 - m.Y2,
             filename,
-        )
+        );
 
     }
 
-    save.SaveHandler(clipboard, output, upload, file, screenshot)
+    save.SaveHandler(clipboard, output, upload, file, screenshot);
 }