|
 |
135360 |
From b94feb218000f0c0a1e156cb868531295763b68d Mon Sep 17 00:00:00 2001
|
|
|
135360 |
From: Pranav Kant <pranavk@libreoffice.org>
|
|
|
135360 |
Date: Sat, 19 Dec 2015 20:36:47 +0530
|
|
|
135360 |
Subject: [PATCH 387/398] tdf#96513: Limit LOKDocView's zoom in [0.25, 5.0]
|
|
|
135360 |
|
|
|
135360 |
Change-Id: Ibee485909dca1ea4a3774fca7a840afbf2d9883c
|
|
|
135360 |
Reviewed-on: https://gerrit.libreoffice.org/20819
|
|
|
135360 |
Tested-by: Jenkins <ci@libreoffice.org>
|
|
|
135360 |
Reviewed-by: David Tardon <dtardon@redhat.com>
|
|
|
135360 |
(cherry picked from commit ba539fa91f9c3316107dcdf4a95718a49335d92e)
|
|
|
135360 |
Reviewed-on: https://gerrit.libreoffice.org/21347
|
|
|
135360 |
Reviewed-by: Christian Lohmaier <lohmaier+LibreOffice@googlemail.com>
|
|
|
135360 |
(cherry picked from commit bd85600aa4a81fba19c98e0a1c2d5ccdcb8fb3fc)
|
|
|
135360 |
---
|
|
|
135360 |
include/LibreOfficeKit/LibreOfficeKitGtk.h | 4 +++-
|
|
|
135360 |
libreofficekit/source/gtk/lokdocview.cxx | 29 +++++++++++++++++++++++++++--
|
|
|
135360 |
2 files changed, 30 insertions(+), 3 deletions(-)
|
|
|
135360 |
|
|
|
135360 |
diff --git a/include/LibreOfficeKit/LibreOfficeKitGtk.h b/include/LibreOfficeKit/LibreOfficeKitGtk.h
|
|
|
135360 |
index 911bbdfa6049..e06d154f772e 100644
|
|
|
135360 |
--- a/include/LibreOfficeKit/LibreOfficeKitGtk.h
|
|
|
135360 |
+++ b/include/LibreOfficeKit/LibreOfficeKitGtk.h
|
|
|
135360 |
@@ -107,7 +107,9 @@ LibreOfficeKitDocument* lok_doc_view_get_document (LOKDocView*
|
|
|
135360 |
* @pDocView: The #LOKDocView instance
|
|
|
135360 |
* @fZoom: The new zoom level that pDocView must set it into.
|
|
|
135360 |
*
|
|
|
135360 |
- * Sets the new zoom level for the widget.
|
|
|
135360 |
+ * Sets the new zoom level for the widget. Does nothing if fZoom is equal to
|
|
|
135360 |
+ * existing zoom level. Values outside the range [0.25, 5.0] are clamped into
|
|
|
135360 |
+ * the nearest allowed value in the interval.
|
|
|
135360 |
*/
|
|
|
135360 |
void lok_doc_view_set_zoom (LOKDocView* pDocView,
|
|
|
135360 |
float fZoom);
|
|
|
135360 |
diff --git a/libreofficekit/source/gtk/lokdocview.cxx b/libreofficekit/source/gtk/lokdocview.cxx
|
|
|
135360 |
index 9774acacad83..d2c66b951b7d 100644
|
|
|
135360 |
--- a/libreofficekit/source/gtk/lokdocview.cxx
|
|
|
135360 |
+++ b/libreofficekit/source/gtk/lokdocview.cxx
|
|
|
135360 |
@@ -39,6 +39,10 @@
|
|
|
135360 |
#define CURSOR_HANDLE_DIR "android/experimental/LOAndroid3/res/drawable/"
|
|
|
135360 |
// Number of handles around a graphic selection.
|
|
|
135360 |
#define GRAPHIC_HANDLE_COUNT 8
|
|
|
135360 |
+// Maximum Zoom allowed
|
|
|
135360 |
+#define MAX_ZOOM 5.0f
|
|
|
135360 |
+// Minimum Zoom allowed
|
|
|
135360 |
+#define MIN_ZOOM 0.25f
|
|
|
135360 |
|
|
|
135360 |
/// Private struct used by this GObject type
|
|
|
135360 |
struct LOKDocViewPrivateImpl
|
|
|
135360 |
@@ -125,8 +129,8 @@ struct LOKDocViewPrivateImpl
|
|
|
135360 |
m_aDocPath(nullptr),
|
|
|
135360 |
m_nLoadProgress(0),
|
|
|
135360 |
m_bIsLoading(false),
|
|
|
135360 |
- m_bCanZoomIn(false),
|
|
|
135360 |
- m_bCanZoomOut(false),
|
|
|
135360 |
+ m_bCanZoomIn(true),
|
|
|
135360 |
+ m_bCanZoomOut(true),
|
|
|
135360 |
m_pOffice(nullptr),
|
|
|
135360 |
m_pDocument(nullptr),
|
|
|
135360 |
lokThreadPool(nullptr),
|
|
|
135360 |
@@ -2473,6 +2477,13 @@ lok_doc_view_set_zoom (LOKDocView* pDocView, float fZoom)
|
|
|
135360 |
LOKDocViewPrivate& priv = getPrivate(pDocView);
|
|
|
135360 |
GError* error = nullptr;
|
|
|
135360 |
|
|
|
135360 |
+ // Clamp the input value in [MIN_ZOOM, MAX_ZOOM]
|
|
|
135360 |
+ fZoom = fZoom < MIN_ZOOM ? MIN_ZOOM : fZoom;
|
|
|
135360 |
+ fZoom = fZoom > MAX_ZOOM ? MAX_ZOOM : fZoom;
|
|
|
135360 |
+
|
|
|
135360 |
+ if (fZoom == priv->m_fZoom)
|
|
|
135360 |
+ return;
|
|
|
135360 |
+
|
|
|
135360 |
priv->m_fZoom = fZoom;
|
|
|
135360 |
long nDocumentWidthPixels = twipToPixel(priv->m_nDocumentWidthTwips, fZoom);
|
|
|
135360 |
long nDocumentHeightPixels = twipToPixel(priv->m_nDocumentHeightTwips, fZoom);
|
|
|
135360 |
@@ -2487,6 +2498,20 @@ lok_doc_view_set_zoom (LOKDocView* pDocView, float fZoom)
|
|
|
135360 |
|
|
|
135360 |
g_object_notify_by_pspec(G_OBJECT(pDocView), properties[PROP_ZOOM]);
|
|
|
135360 |
|
|
|
135360 |
+ // set properties to indicate if view can be further zoomed in/out
|
|
|
135360 |
+ bool bCanZoomIn = priv->m_fZoom < MAX_ZOOM;
|
|
|
135360 |
+ bool bCanZoomOut = priv->m_fZoom > MIN_ZOOM;
|
|
|
135360 |
+ if (bCanZoomIn != priv->m_bCanZoomIn)
|
|
|
135360 |
+ {
|
|
|
135360 |
+ priv->m_bCanZoomIn = bCanZoomIn;
|
|
|
135360 |
+ g_object_notify_by_pspec(G_OBJECT(pDocView), properties[PROP_CAN_ZOOM_IN]);
|
|
|
135360 |
+ }
|
|
|
135360 |
+ if (bCanZoomOut != priv->m_bCanZoomOut)
|
|
|
135360 |
+ {
|
|
|
135360 |
+ priv->m_bCanZoomOut = bCanZoomOut;
|
|
|
135360 |
+ g_object_notify_by_pspec(G_OBJECT(pDocView), properties[PROP_CAN_ZOOM_OUT]);
|
|
|
135360 |
+ }
|
|
|
135360 |
+
|
|
|
135360 |
// Update the client's view size
|
|
|
135360 |
GTask* task = g_task_new(pDocView, nullptr, nullptr, nullptr);
|
|
|
135360 |
LOEvent* pLOEvent = new LOEvent(LOK_SET_CLIENT_ZOOM);
|
|
|
135360 |
--
|
|
|
135360 |
2.12.0
|
|
|
135360 |
|