Add simple font tests for the drawing unit test.

Check that DrawText() results in the expected output. Currently the tests are disabled for non-Windows systems because of the problem with the reference file paths there. See #16261. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@76556 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2014-05-17 12:29:21 +00:00
parent a380c1e46f
commit 268b33d8a3
13 changed files with 173 additions and 4 deletions
--- a/tests/drawing/fonttest.cpp
+++ b/tests/drawing/fonttest.cpp
@@ -0,0 +1,115 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        tests/drawing/basictest.cpp
+// Purpose:     Basic tests for wxGraphicsContext
+// Author:      Armel Asselin
+// Created:     2014-02-28
+// Copyright:   (c) 2014 Ellié Computing <opensource@elliecomputing.com>
+///////////////////////////////////////////////////////////////////////////////
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
+#include "testprec.h"
+#ifdef __BORLANDC__
+    #pragma hdrstop
+#endif
+
+#ifndef WX_PRECOMP
+    #include "wx/app.h"
+    #include "wx/font.h"
+#endif // WX_PRECOMP
+
+#include "drawing.h"
+
+#ifdef __WXGTK__
+#include "glib-object.h"
+#endif
+
+#if wxUSE_TEST_GC_DRAWING
+
+const GraphicsContextDrawingTestCase::DrawingTestCase
+GraphicsContextDrawingTestCase::ms_drawingFontTc = {
+    2, &GraphicsContextDrawingTestCase::DoFontDrawings, 800, 600, 72., false
+};
+
+void GraphicsContextDrawingTestCase::DoFontDrawings (wxGraphicsContext *gc)
+{
+#ifdef __WXGTK__
+    g_type_init();
+#endif
+
+    // This test is expected to treat about fonts/texts. Fonts are a bit special
+    // because we cannot expect the same rendering by several engines, and the
+    // dimensions of the same text in same font will vary.
+
+    wxGraphicsBrush gbBackground =
+        gc->CreateBrush( wxBrush ( wxColour ( 240, 240, 240 ) ) );
+
+    gc->SetBrush( gbBackground );
+    gc->DrawRectangle(0, 0, 800, 600);
+
+    wxGraphicsBrush gbTextBackground =
+        gc->CreateBrush( wxBrush ( wxColour ( 192, 192, 192 ) ) );
+
+    // set underlined font for testing
+    gc->SetFont( wxFont(wxFontInfo(12).Family(wxFONTFAMILY_MODERN).Underlined()), *wxBLACK );
+    gc->DrawText( wxT("This is text"), 110, 10, gbTextBackground );
+    gc->DrawText( wxT("That is text"), 20, 10, wxDegToRad(-45), gbTextBackground );
+
+    // use wxSWISS_FONT and not wxNORMAL_FONT as the latter can't be rotated
+    // under Win9x (it is not TrueType)
+    gc->SetFont( wxFont(wxFontInfo(12).Family(wxFONTFAMILY_SWISS)), *wxBLACK );
+
+    wxString text;
+
+    for ( int n = -180; n < 180; n += 30 )
+    {
+        text.Printf(wxT("     %d rotated text"), n);
+        gc->DrawText(text , 400, 400, wxDegToRad(n) );
+    }
+
+    wxFont swissDcFont( wxFontInfo(18).Family(wxFONTFAMILY_SWISS) );
+    wxGraphicsFont swissFont = gc->CreateFont( swissDcFont, *wxBLACK );
+    gc->SetFont( swissFont );
+
+    gc->DrawText( wxT("This is Swiss 18pt text."), 110, 40 );
+
+    wxDouble length;
+    wxDouble height;
+    wxDouble descent;
+    gc->GetTextExtent( wxT("This is Swiss 18pt text."), &length, &height, &descent );
+    text.Printf( wxT("Dimensions are length %f, height %f, descent %f"), length, height, descent );
+    gc->DrawText( text, 110, 80 );
+
+    // (did not find equivalent to CharHeight())
+
+    gc->SetBrush( *wxWHITE_BRUSH );
+
+    gc->DrawRectangle( 100, 40, 4, height );
+
+    // test the logical function effect
+    wxCoord y = 150;
+    // text drawing should ignore logical function
+    gc->DrawText( wxT("There should be a text below"), 110, 150 );
+    gc->DrawRectangle( 110, y, 100, height );
+
+    y += height;
+    gc->DrawText( wxT("Visible text"), 110, y );
+    gc->DrawRectangle( 110, y, 100, height );
+    gc->DrawText( wxT("Visible text"), 110, y );
+    gc->DrawRectangle( 110, y, 100, height );
+
+    y += height;
+    gc->DrawRectangle( 110, y, 100, height );
+    gc->DrawText( wxT("Another visible text"), 110, y );
+
+    y += height;
+    gc->DrawText("And\nmore\ntext on\nmultiple\nlines", 110, y);
+    y += 5*height;
+
+    gc->SetFont( swissDcFont, *wxBLUE );
+    gc->DrawText( "Rotated text\ncan have\nmultiple lines\nas well", 110, y, wxDegToRad(15) );
+}
+
+#endif // wxUSE_TEST_GC_DRAWING