1 files changed, 158 insertions, 0 deletions
diff --git a/starmath/source/smediteng.cxx b/starmath/source/smediteng.cxx
new file mode 100644
index 000000000..5560d501e
--- /dev/null
+++ b/starmath/source/smediteng.cxx
@@ -0,0 +1,158 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+#include <smediteng.hxx>
+#include <smmod.hxx>
+#include <cfgitem.hxx>
+
+#include <vcl/settings.hxx>
+#include <editeng/editview.hxx>
+#include <editeng/eeitem.hxx>
+#include <editeng/fhgtitem.hxx>
+#include <editeng/fontitem.hxx>
+#include <svl/itempool.hxx>
+#include <svl/itemset.hxx>
+#include <vcl/outdev.hxx>
+#include <vcl/svapp.hxx>
+
+SmEditEngine::SmEditEngine(SfxItemPool* pItemPool)
+    : EditEngine(pItemPool)
+    , m_nOldZoom(100)
+    , m_nNewZoom(100)
+    , m_nDefaultFontSize(0)
+    , m_aAllSelection(0, 0, 0, 0)
+{
+    SetText(u"");
+
+    // Add external text leading
+    SetAddExtLeading(true);
+
+    // Allow to undo changes ( Ctrl + z )
+    EnableUndo(true);
+
+    // Length in pixel of a tabulation
+    SetDefTab(sal_uInt16(Application::GetDefaultDevice()->GetTextWidth("XXXX")));
+
+    // Set default background color by theme
+    SetBackgroundColor(
+        Application::GetDefaultDevice()->GetSettings().GetStyleSettings().GetFieldColor());
+
+    // Control words
+    SetControlWord((GetControlWord() | EEControlBits::AUTOINDENTING)
+                   & EEControlBits(~EEControlBits::UNDOATTRIBS)
+                   & EEControlBits(~EEControlBits::PASTESPECIAL));
+
+    // Word delimiters for auto word selection by double click
+    SetWordDelimiters(" .=+-*/(){}[];\"");
+
+    // Default mapping mode
+    SetRefMapMode(MapMode(MapUnit::MapPixel));
+
+    // Default size of the box
+    SetPaperSize(Size(1000, 0));
+}
+
+bool SmEditEngine::checkZoom()
+{
+    return m_nOldZoom != (m_nNewZoom = SM_MOD()->GetConfig()->GetSmEditWindowZoomFactor());
+}
+
+void SmEditEngine::executeZoom(EditView* pEditView)
+{
+    if (checkZoom())
+    {
+        updateZoom();
+        if (pEditView)
+        {
+            FormatAndLayout(pEditView);
+            pEditView->SetSelection(pEditView->GetSelection());
+        }
+    }
+}
+
+void SmEditEngine::updateZoom()
+{
+    // In first run get font size as base to scale
+    if (m_nDefaultFontSize == 0)
+    {
+        SfxItemSet sfxatts = GetAttribs(0, 0, 0, GetAttribsFlags::CHARATTRIBS);
+        const SvxFontHeightItem* sfxattsh = sfxatts.GetItem(EE_CHAR_FONTHEIGHT);
+        m_nDefaultFontSize = sfxattsh->GetHeight();
+    }
+
+    // Now we calculate the new font size
+    sal_Int32 nNewFontSize = m_nDefaultFontSize * m_nNewZoom / 100;
+
+    // We apply the new font size to all the text
+    updateAllESelection(); // Update length of the text
+    SfxItemSet aSet = GetEmptyItemSet();
+    aSet.Put(SvxFontHeightItem(nNewFontSize, 100, EE_CHAR_FONTHEIGHT));
+    QuickSetAttribs(aSet, m_aAllSelection);
+
+    // We don't forget to equalize the zoomvalues
+    m_nOldZoom = m_nNewZoom;
+}
+
+void SmEditEngine::updateAllESelection()
+{
+    sal_Int32 paracount = GetParagraphCount();
+    m_aAllSelection.nEndPara = paracount > 0 ? paracount - 1 : 0;
+    sal_Int32 textlength = GetTextLen(m_aAllSelection.nEndPara);
+    m_aAllSelection.nEndPos = textlength > 0 ? textlength : 0;
+}
+
+void SmEditEngine::setSmItemPool(SfxItemPool* mpItemPool, const SvtLinguOptions& maLangOptions)
+{
+    // Set fonts to be used
+    struct FontData
+    {
+        LanguageType nFallbackLang;
+        LanguageType nLang;
+        DefaultFontType nFontType;
+        sal_uInt16 nFontInfoId;
+    };
+
+    FontData aFontDataTable[3]
+        = { // info to get western font to be used
+            { LANGUAGE_ENGLISH_US, maLangOptions.nDefaultLanguage, DefaultFontType::FIXED,
+              EE_CHAR_FONTINFO },
+            // info to get CJK font to be used
+            { LANGUAGE_JAPANESE, maLangOptions.nDefaultLanguage_CJK, DefaultFontType::CJK_TEXT,
+              EE_CHAR_FONTINFO_CJK },
+            // info to get CTL font to be used
+            { LANGUAGE_ARABIC_SAUDI_ARABIA, maLangOptions.nDefaultLanguage_CTL,
+              DefaultFontType::CTL_TEXT, EE_CHAR_FONTINFO_CTL }
+          };
+
+    // Text color
+    auto aDefaultDevice = Application::GetDefaultDevice();
+    Color aTextColor = aDefaultDevice->GetSettings().GetStyleSettings().GetFieldTextColor();
+    for (const FontData& aFontData : aFontDataTable)
+    {
+        LanguageType nLang
+            = (LANGUAGE_NONE == aFontData.nLang) ? aFontData.nFallbackLang : aFontData.nLang;
+        vcl::Font aFont = OutputDevice::GetDefaultFont(aFontData.nFontType, nLang,
+                                                       GetDefaultFontFlags::OnlyOne);
+        aFont.SetColor(aTextColor);
+        mpItemPool->SetPoolDefaultItem(SvxFontItem(aFont.GetFamilyType(), aFont.GetFamilyName(),
+                                                   aFont.GetStyleName(), aFont.GetPitch(),
+                                                   aFont.GetCharSet(), aFontData.nFontInfoId));
+    }
+
+    // Set font heights
+    SvxFontHeightItem aFontHeight(
+        aDefaultDevice->LogicToPixel(Size(0, 11), MapMode(MapUnit::MapPoint)).Height(), 100,
+        EE_CHAR_FONTHEIGHT);
+    mpItemPool->SetPoolDefaultItem(aFontHeight);
+    aFontHeight.SetWhich(EE_CHAR_FONTHEIGHT_CJK);
+    mpItemPool->SetPoolDefaultItem(aFontHeight);
+    aFontHeight.SetWhich(EE_CHAR_FONTHEIGHT_CTL);
+    mpItemPool->SetPoolDefaultItem(aFontHeight);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */