Add methods to get mouse position

5 files changed, 47 insertions, 0 deletions

diff --git a/src/nigui.nim b/src/nigui.nim
index 96af6f4..82e6282 100755
--- a/src/nigui.nim
+++ b/src/nigui.nim
@@ -689,6 +689,9 @@ method clientHeight*(window: Window): int {.base.}
 method iconPath*(window: Window): string {.base.}
 method `iconPath=`*(window: Window, iconPath: string) {.base, locks: "unknown".}
 
+method mousePosition*(window: Window): tuple[x, y: int]
+## Returns the mouse pointer position relative to the given window
+
 method closeClick*(window: Window) {.base.}
 
 method handleResizeEvent*(window: Window, event: ResizeEvent) {.base.}
@@ -778,6 +781,9 @@ method wantedWidth*(control: Control): int {.base.}
 
 method wantedHeight*(control: Control): int {.base.}
 
+method mousePosition*(control: Control): tuple[x, y: int]
+## Returns the mouse pointer position relative to the given control
+
 method focus*(control: Control) {.base.}
 
 method getTextLineWidth*(control: Control, text: string): int {.base, locks: "unknown".}
diff --git a/src/nigui/private/gtk3/gtk3.nim b/src/nigui/private/gtk3/gtk3.nim
index 67a0e23..5db784b 100755
--- a/src/nigui/private/gtk3/gtk3.nim
+++ b/src/nigui/private/gtk3/gtk3.nim
@@ -294,6 +294,7 @@ proc gtk_widget_is_focus*(widget: pointer): bool {.importc, libgtk3.}
 proc gtk_widget_realize*(widget: pointer) {.importc, libgtk3.}
 proc gtk_widget_draw*(widget, cr: pointer) {.importc, libgtk3.}
 proc gtk_widget_set_sensitive*(widget: pointer, sensitive: bool) {.importc, libgtk3.}
+proc gtk_widget_get_pointer*(widget: pointer, x, y: var cint) {.importc, libgtk3.}
 
 proc gtk_container_add*(container, widget: pointer) {.importc, libgtk3.}
 proc gtk_container_remove*(container, widget: pointer) {.importc, libgtk3.}
diff --git a/src/nigui/private/gtk3/platform_impl.nim b/src/nigui/private/gtk3/platform_impl.nim
index e2e23d5..cb15f2f 100755
--- a/src/nigui/private/gtk3/platform_impl.nim
+++ b/src/nigui/private/gtk3/platform_impl.nim
@@ -889,6 +889,12 @@ method `control=`(window: WindowImpl, control: Control) =
   procCall window.Window.`control=`(control)
   gtk_container_add(window.fInnerHandle, cast[ControlImpl](control).fHandle)
 
+method mousePosition(window: Window): tuple[x, y: int] =
+  var x, y: cint
+  gtk_widget_get_pointer(cast[WindowImpl](window).fHandle, x, y)
+  result.x = x
+  result.y = y
+
 method `iconPath=`(window: WindowImpl, iconPath: string) =
   procCall window.Window.`iconPath=`(iconPath)
   if not gtk_window_set_icon_from_file(window.fHandle, iconPath, nil):
@@ -1258,6 +1264,12 @@ method pUpdateScrollBar(container: ContainerImpl) =
     yPolicy = GTK_POLICY_AUTOMATIC
   gtk_scrolled_window_set_policy(container.fScrollWndHandle, xPolicy, yPolicy)
 
+method mousePosition(control: Control): tuple[x, y: int] =
+  var x, y: cint
+  gtk_widget_get_pointer(cast[ControlImpl](control).fHandle, x, y)
+  result.x = x
+  result.y = y
+
 
 # ----------------------------------------------------------------------------------------
 #                                        Frame
diff --git a/src/nigui/private/windows/platform_impl.nim b/src/nigui/private/windows/platform_impl.nim
index b0e23c4..c52d908 100755
--- a/src/nigui/private/windows/platform_impl.nim
+++ b/src/nigui/private/windows/platform_impl.nim
@@ -947,6 +947,20 @@ method `control=`(window: WindowImpl, control: Control) =
   procCall window.Window.`control=`(control)
   pSetParent(cast[ControlImpl](control).fHandle, window.fHandle)
 
+method mousePosition(window: Window): tuple[x, y: int] =
+  var p: Point
+  if not GetCursorPos(p):
+    result.x = -1
+    result.y = -1
+    return
+  if not ScreenToClient(cast[WindowImpl](window).fHandle, p):
+    result.x = -1
+    result.y = -1
+    return
+  result.x = p.x
+  result.y = p.y
+
+
 method `iconPath=`(window: WindowImpl, iconPath: string) =
   procCall window.Window.`iconPath=`(iconPath)
   var bitmap: pointer
@@ -1298,6 +1312,19 @@ proc pCustomControlWndProc(hWnd: pointer, uMsg: int32, wParam, lParam: pointer):
     return cast[pointer](true)
   result = CallWindowProcW(pCommonWndProc, hWnd, uMsg, wParam, lParam)
 
+method mousePosition(control: Control): tuple[x, y: int] =
+  var p: Point
+  if not GetCursorPos(p):
+    result.x = -1
+    result.y = -1
+    return
+  if not ScreenToClient(cast[ControlImpl](control).fHandle, p):
+    result.x = -1
+    result.y = -1
+    return
+  result.x = p.x
+  result.y = p.y
+
 
 # ----------------------------------------------------------------------------------------
 #                                      Container
diff --git a/src/nigui/private/windows/windows.nim b/src/nigui/private/windows/windows.nim
index 26324f8..2c4e09c 100755
--- a/src/nigui/private/windows/windows.nim
+++ b/src/nigui/private/windows/windows.nim
@@ -467,6 +467,7 @@ proc SetClipboardData*(uFormat: int32, hMem: pointer): pointer {.importc, libUse
 proc EmptyClipboard*(): bool {.importc, libUser32.}
 proc MapVirtualKeyW*(uCode, uMapType: int32): int32 {.importc, libUser32.}
 proc GetCursorPos*(lpPoint: var Point): bool {.importc, libUser32.}
+proc ScreenToClient*(hWnd: pointer, lpPoint: var Point): bool {.importc, libUser32.}
 proc MonitorFromPoint*(pt: Point, dwFlags: int32): pointer {.importc, libUser32.}
 
 type GetDpiForWindowType* = proc(hWnd: pointer): int32 {.gcsafe, stdcall.} # not available on Windows 7