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    Subject[PATCH 30/37] perf scripts python: exported-sql-viewer.py: Add ability to shrink / enlarge font
    Date
    From: Adrian Hunter <adrian.hunter@intel.com>

    Shrinking the font allows more information to display.

    Committer testing:

    Works, tested with the convenient Control+Shift+'+' and Control+'-' as
    well with the more cumbersome top menu "Edit" + "Enlarge/Shrink font"
    options.

    Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
    Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
    Cc: Andi Kleen <ak@linux.intel.com>
    Cc: Jiri Olsa <jolsa@redhat.com>
    Link: http://lkml.kernel.org/r/20181001062853.28285-16-adrian.hunter@intel.com
    Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
    ---
    tools/perf/scripts/python/exported-sql-viewer.py | 24 ++++++++++++++++++++++++
    1 file changed, 24 insertions(+)

    diff --git a/tools/perf/scripts/python/exported-sql-viewer.py b/tools/perf/scripts/python/exported-sql-viewer.py
    index 0386a600ffc7..310ba7147583 100755
    --- a/tools/perf/scripts/python/exported-sql-viewer.py
    +++ b/tools/perf/scripts/python/exported-sql-viewer.py
    @@ -706,6 +706,20 @@ class WindowMenu():
    def setActiveSubWindow(self, nr):
    self.mdi_area.setActiveSubWindow(self.mdi_area.subWindowList()[nr - 1])

    +# Font resize
    +
    +def ResizeFont(widget, diff):
    + font = widget.font()
    + sz = font.pointSize()
    + font.setPointSize(sz + diff)
    + widget.setFont(font)
    +
    +def ShrinkFont(widget):
    + ResizeFont(widget, -1)
    +
    +def EnlargeFont(widget):
    + ResizeFont(widget, 1)
    +
    # Unique name for sub-windows

    def NumberedWindowName(name, nr):
    @@ -765,6 +779,8 @@ class MainWindow(QMainWindow):

    edit_menu = menu.addMenu("&Edit")
    edit_menu.addAction(CreateAction("&Find...", "Find items", self.Find, self, QKeySequence.Find))
    + edit_menu.addAction(CreateAction("&Shrink Font", "Make text smaller", self.ShrinkFont, self, [QKeySequence("Ctrl+-")]))
    + edit_menu.addAction(CreateAction("&Enlarge Font", "Make text bigger", self.EnlargeFont, self, [QKeySequence("Ctrl++")]))

    reports_menu = menu.addMenu("&Reports")
    reports_menu.addAction(CreateAction("Context-Sensitive Call &Graph", "Create a new window containing a context-sensitive call graph", self.NewCallGraph, self))
    @@ -779,6 +795,14 @@ class MainWindow(QMainWindow):
    except:
    pass

    + def ShrinkFont(self):
    + win = self.mdi_area.activeSubWindow()
    + ShrinkFont(win.view)
    +
    + def EnlargeFont(self):
    + win = self.mdi_area.activeSubWindow()
    + EnlargeFont(win.view)
    +
    def NewCallGraph(self):
    CallGraphWindow(self.glb, self)

    --
    2.14.4
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