support screenshotting .ui files with GtkBuilder

so...

SAL_USE_VCLPLUGIN=gtk3 make screenshot

for the "unknown dialog" cases of make screenshot, which loads .ui files and
tries to render them, will render them with the native gtk infrastructure

Change-Id: Ifc8fe264155887c4d01b7ce0e2aa53e12acbfcb0
Reviewed-on: https://gerrit.libreoffice.org/80545
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

3 files changed, 51 insertions, 42 deletions

diff --git a/include/vcl/dialog.hxx b/include/vcl/dialog.hxx
index cc5355d58132..ee2560abc475 100644
--- a/include/vcl/dialog.hxx
+++ b/include/vcl/dialog.hxx
@@ -50,7 +50,6 @@ private:
     bool            mbInSyncExecute;
     bool            mbInClose;
     bool            mbModalMode;
-    bool            mbPaintComplete;
     bool const      mbForceBorderWindow;
     InitFlag const  mnInitFlag; // used for deferred init
 
@@ -70,11 +69,6 @@ private:
     DECL_DLLPRIVATE_LINK(ImplAsyncCloseHdl, void*, void);
     DECL_DLLPRIVATE_LINK(ResponseHdl, Button*, void);
 
-    // ensureRepaint - triggers Application::Yield until the dialog is
-    // completely repainted. Sometimes needed for dialogs showing progress
-    // during actions
-    void ensureRepaint();
-
 protected:
     using Window::ImplInit;
     void    ImplInit( vcl::Window* pParent, WinBits nStyle, InitFlag eFlag = InitFlag::Default );
@@ -95,6 +89,7 @@ protected:
 
 protected:
     friend class VclBuilder;
+    friend class SalInstanceBuilder;
     void set_action_area(VclButtonBox* pBox);
     virtual void set_content_area(VclBox* pBox);
 
@@ -119,17 +114,6 @@ public:
 
     virtual bool    Close() override;
 
-    // try to extract content and return as Bitmap. To do that reliably, a Yield-loop
-    // like in Execute() has to be executed and it is necessary to detect when the
-    // paint is finished
-    virtual void PrePaint(vcl::RenderContext& rRenderContext) override;
-    virtual void PostPaint(vcl::RenderContext& rRenderContext) override;
-
-    // Screenshot interface
-    virtual std::vector<OString> getAllPageUIXMLDescriptions() const;
-    virtual bool selectPageByUIXMLDescription(const OString& rUIXMLDescription);
-    void createScreenshot(VirtualDevice& rOutput);
-
     virtual short   Execute();
     bool            IsInExecute() const { return mbInExecute; }
     // Return true when dialog is synchronously executed (calling ::Execute())
diff --git a/include/vcl/syswin.hxx b/include/vcl/syswin.hxx
index 402aebeb381e..cb6d15d27ead 100644
--- a/include/vcl/syswin.hxx
+++ b/include/vcl/syswin.hxx
@@ -141,6 +141,7 @@ private:
     bool            mbHideBtn;
     bool            mbSysChild;
     bool            mbIsCalculatingInitialLayoutSize;
+    bool            mbPaintComplete;
     MenuBarMode     mnMenuBarMode;
     sal_uInt16      mnIcon;
     std::unique_ptr<ImplData> mpImplData;
@@ -159,6 +160,17 @@ private:
     SAL_DLLPRIVATE void setPosSizeOnContainee(Size aSize, Window &rBox);
     DECL_DLLPRIVATE_LINK( ImplHandleLayoutTimerHdl, Timer*, void );
 
+    // try to extract content and return as Bitmap. To do that reliably, a Yield-loop
+    // like in Execute() has to be executed and it is necessary to detect when the
+    // paint is finished
+    virtual void PrePaint(vcl::RenderContext& rRenderContext) override;
+    virtual void PostPaint(vcl::RenderContext& rRenderContext) override;
+
+    // ensureRepaint - triggers Application::Yield until the dialog is
+    // completely repainted. Sometimes needed for dialogs showing progress
+    // during actions
+    SAL_DLLPRIVATE void ensureRepaint();
+
 protected:
     // Single argument ctors shall be explicit.
     explicit SystemWindow(WindowType nType);
@@ -171,6 +183,7 @@ protected:
     SAL_DLLPRIVATE void DoInitialLayout();
 
     SAL_DLLPRIVATE void SetIdleDebugName( const sal_Char *pDebugName );
+
 public:
     virtual         ~SystemWindow() override;
     virtual void    dispose() override;
@@ -270,6 +283,11 @@ public:
     SAL_DLLPRIVATE bool hasPendingLayout() const { return maLayoutIdle.IsActive(); }
 
     virtual        void    doDeferredInit(WinBits nBits);
+
+    // Screenshot interface
+    virtual std::vector<OString> getAllPageUIXMLDescriptions() const;
+    virtual bool selectPageByUIXMLDescription(const OString& rUIXMLDescription);
+    void createScreenshot(VirtualDevice& rOutput);
 };
 
 inline void SystemWindow::SetIdleDebugName( const sal_Char *pDebugName )
diff --git a/include/vcl/weld.hxx b/include/vcl/weld.hxx
index 20c8d9e5751e..be9cf23f0779 100644
--- a/include/vcl/weld.hxx
+++ b/include/vcl/weld.hxx
@@ -351,6 +351,26 @@ public:
     void connect_enter_page(const Link<const OString&, void>& rLink) { m_aEnterPageHdl = rLink; }
 };
 
+class VCL_DLLPUBLIC ScreenShotEntry
+{
+public:
+    ScreenShotEntry(const OString& rHelpId, const basegfx::B2IRange& rB2IRange)
+        : msHelpId(rHelpId)
+        , maB2IRange(rB2IRange)
+    {
+    }
+
+    const basegfx::B2IRange& getB2IRange() const { return maB2IRange; }
+
+    const OString& GetHelpId() const { return msHelpId; }
+
+private:
+    OString msHelpId;
+    basegfx::B2IRange maB2IRange;
+};
+
+typedef std::vector<ScreenShotEntry> ScreenShotCollection;
+
 class VCL_DLLPUBLIC Window : virtual public Container
 {
 protected:
@@ -397,6 +417,11 @@ public:
     virtual SystemEnvData get_system_data() const = 0;
 
     virtual void resize_to_request() = 0;
+
+    // render the dialog for a screenshot
+    virtual void draw(VirtualDevice& rOutput) = 0;
+    // collect positions of widgets and their help ids for screenshot purposes
+    virtual ScreenShotCollection collect_screenshot_data() = 0;
 };
 
 class VCL_DLLPUBLIC WaitObject
@@ -420,26 +445,6 @@ public:
 
 class Button;
 
-class VCL_DLLPUBLIC ScreenShotEntry
-{
-public:
-    ScreenShotEntry(const OString& rHelpId, const basegfx::B2IRange& rB2IRange)
-        : msHelpId(rHelpId)
-        , maB2IRange(rB2IRange)
-    {
-    }
-
-    const basegfx::B2IRange& getB2IRange() const { return maB2IRange; }
-
-    const OString& GetHelpId() const { return msHelpId; }
-
-private:
-    OString msHelpId;
-    basegfx::B2IRange maB2IRange;
-};
-
-typedef std::vector<ScreenShotEntry> ScreenShotCollection;
-
 class VCL_DLLPUBLIC Dialog : virtual public Window
 {
 private:
@@ -467,11 +472,6 @@ public:
     // undo previous dialog collapse
     virtual void undo_collapse() = 0;
 
-    // render the dialog for a screenshot
-    virtual void draw(VirtualDevice& rOutput) = 0;
-    // collect positions of widgets and their help ids for screenshot purposes
-    virtual ScreenShotCollection collect_screenshot_data() = 0;
-
     virtual void SetInstallLOKNotifierHdl(const Link<void*, vcl::ILibreOfficeKitNotifier*>& rLink)
         = 0;
 };
@@ -1937,6 +1937,13 @@ public:
     virtual std::unique_ptr<Toolbar> weld_toolbar(const OString& id, bool bTakeOwnership = true)
         = 0;
     virtual std::unique_ptr<SizeGroup> create_size_group() = 0;
+    /* return a Dialog suitable to take a screenshot of containing the contents of the .ui file.
+
+       If the toplevel element is a dialog, that will be returned
+       If the toplevel is not a dialog, a dialog will be created and the contents of the .ui
+       inserted into it
+    */
+    virtual std::unique_ptr<Window> create_screenshot_window() = 0;
     virtual ~Builder() {}
 };