[arrayfire] 70/75: Support to set visibility of windows programmatically

[Ghislain Vaillant]

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ghisvail-guest pushed a commit to branch dfsg-clean
in repository arrayfire.

commit 58809cb68eed2b2896ffd57b969ac87a2433bd30
Author: pradeep <pradeep at arrayfire.com>
Date:   Thu Feb 25 23:36:05 2016 +0530

    Support to set visibility of windows programmatically
---
 include/af/graphics.h        | 23 +++++++++++++++++++++++
 src/api/c/image.cpp          | 22 ++++++++++++++++++++++
 src/api/cpp/graphics.cpp     |  5 +++++
 src/api/unified/graphics.cpp |  5 +++++
 4 files changed, 55 insertions(+)

diff --git a/include/af/graphics.h b/include/af/graphics.h
index 7485686..b69a838 100644
--- a/include/af/graphics.h
+++ b/include/af/graphics.h
@@ -289,6 +289,17 @@ class AFAPI Window {
         */
         bool close();
 
+#if AF_API_VERSION >= 33
+        /**
+           Hide/Show the window
+
+           \param[in] isVisible indicates if the window is to be hidden or brought into focus
+
+           \ingroup gfx_func_window
+         */
+        void setVisibility(const bool isVisible);
+#endif
+
         /**
            This function is used to keep track of which cell in the grid mode is
            being currently rendered. When a user does Window(0,0), we internally
@@ -547,6 +558,18 @@ AFAPI af_err af_show(const af_window wind);
 */
 AFAPI af_err af_is_window_closed(bool *out, const af_window wind);
 
+#if AF_API_VERSION >= 33
+/**
+   Hide/Show a window
+
+   \param[in] wind is the window whose visibility is to be changed
+   \param[in] is_visible indicates if the window is to be hidden or brought into focus
+
+   \ingroup gfx_func_window
+ */
+AFAPI af_err af_set_visibility(const af_window wind, const bool is_visible);
+#endif
+
 /**
    C Interface wrapper for destroying a window handle
 
diff --git a/src/api/c/image.cpp b/src/api/c/image.cpp
index db40934..2c523d0 100644
--- a/src/api/c/image.cpp
+++ b/src/api/c/image.cpp
@@ -264,6 +264,28 @@ af_err af_is_window_closed(bool *out, const af_window wind)
 #endif
 }
 
+af_err af_set_visibility(const af_window wind, const bool is_visible)
+{
+#if defined(WITH_GRAPHICS)
+    if(wind==0) {
+        std::cerr<<"Not a valid window"<<std::endl;
+        return AF_SUCCESS;
+    }
+
+    try {
+        fg::Window* wnd = reinterpret_cast<fg::Window*>(wind);
+        if (is_visible)
+            wnd->show();
+        else
+            wnd->hide();
+    }
+    CATCHALL;
+    return AF_SUCCESS;
+#else
+    AF_RETURN_ERROR("ArrayFire compiled without graphics support", AF_ERR_NO_GFX);
+#endif
+}
+
 af_err af_destroy_window(const af_window wind)
 {
 #if defined(WITH_GRAPHICS)
diff --git a/src/api/cpp/graphics.cpp b/src/api/cpp/graphics.cpp
index 162bacb..8b53825 100644
--- a/src/api/cpp/graphics.cpp
+++ b/src/api/cpp/graphics.cpp
@@ -136,4 +136,9 @@ bool Window::close()
     return temp;
 }
 
+void Window::setVisibility(const bool isVisible)
+{
+    AF_THROW(af_set_visibility(get(), isVisible));
+}
+
 }
diff --git a/src/api/unified/graphics.cpp b/src/api/unified/graphics.cpp
index 2895cc7..9e3f1c8 100644
--- a/src/api/unified/graphics.cpp
+++ b/src/api/unified/graphics.cpp
@@ -89,6 +89,11 @@ af_err af_is_window_closed(bool *out, const af_window wind)
     return CALL(out, wind);
 }
 
+af_err af_set_visibility(const af_window wind, const bool is_visible)
+{
+    return CALL(wind, is_visible);
+}
+
 af_err af_destroy_window(const af_window wind)
 {
     return CALL(wind);

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