Initial release
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civ
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// This file is part of VSTGUI. It is subject to the license terms
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// in the LICENSE file found in the top-level directory of this
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// distribution and at http://github.com/steinbergmedia/vstgui/LICENSE
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#include "cfontchooser.h"
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#include "../cdatabrowser.h"
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#include "../cdrawcontext.h"
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#include "cbuttons.h"
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#include "ctextedit.h"
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#include "cscrollbar.h"
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#include "../cstring.h"
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#include "../platform/platformfactory.h"
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#include "../platform/iplatformfont.h"
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#include <list>
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#include <cmath>
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namespace VSTGUI {
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/// @cond ignore
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namespace CFontChooserInternal {
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class FontPreviewView : public CView
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{
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public:
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FontPreviewView (const CRect& size, const CColor& color = kWhiteCColor) : CView (size), font (nullptr), fontColor (color) {}
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~FontPreviewView () noexcept override { if (font) font->forget (); }
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void setFont (CFontRef newFont)
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{
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if (font)
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font->forget ();
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font = newFont;
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if (font)
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font->remember ();
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invalid ();
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}
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void draw (CDrawContext *context) override
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{
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context->setFontColor (fontColor);
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context->setFont (font);
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std::string text;
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char string[2];
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CRect glyphRect (getViewSize ().left, getViewSize ().top, getViewSize ().left, getViewSize ().top);
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CCoord height = ceil (font->getPlatformFont ()->getAscent () + font->getPlatformFont ()->getDescent () + font->getPlatformFont ()->getLeading () + 2.);
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glyphRect.setHeight (height);
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for (int8_t i = 33; i < 126;)
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{
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while (glyphRect.right < getViewSize ().right && i < 126)
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{
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snprintf (string, 2, "%c", i++);
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text += string;
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glyphRect.setWidth (context->getStringWidth (text.c_str ()));
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}
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context->drawString (text.c_str (), glyphRect, kLeftText);
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glyphRect.left = glyphRect.right = getViewSize ().left;
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glyphRect.offset (0, height);
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text = "";
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}
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setDirty (false);
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}
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protected:
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CFontRef font;
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CColor fontColor;
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};
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enum {
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kFontChooserSizeTag,
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kFontChooserBoldTag,
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kFontChooserItalicTag,
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kFontChooserUnderlineTag,
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kFontChooserStrikeoutTag
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};
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} // CFontChooserInternal
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/// @endcond
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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CFontChooser::CFontChooser (IFontChooserDelegate* delegate, CFontRef initialFont, const CFontChooserUIDefinition& uiDef)
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: CViewContainer (CRect (0, 0, 300, 500))
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, delegate (nullptr)
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, fontBrowser (nullptr)
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, selFont (nullptr)
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{
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std::list<std::string> fnList;
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getPlatformFactory ().getAllFontFamilies ([&fnList] (const std::string& name) {
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fnList.push_back (name);
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return true;
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});
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fnList.sort ();
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std::list<std::string>::const_iterator it = fnList.begin ();
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while (it != fnList.end ())
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{
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fontNames.emplace_back (*it);
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++it;
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}
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auto* dbSource = new GenericStringListDataBrowserSource (&fontNames, this);
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dbSource->setupUI (uiDef.selectionColor, uiDef.fontColor, uiDef.rowlineColor, uiDef.rowBackColor, uiDef.rowAlternateBackColor, uiDef.font, uiDef.rowHeight);
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int32_t dbStyle = CDataBrowser::kDrawRowLines | CScrollView::kVerticalScrollbar | CScrollView::kDontDrawFrame | CScrollView::kOverlayScrollbars;
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fontBrowser = new CDataBrowser (CRect (0, 0, 200, 500), dbSource, dbStyle, uiDef.scrollbarWidth);
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dbSource->forget ();
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fontBrowser->setAutosizeFlags (kAutosizeLeft | kAutosizeTop | kAutosizeBottom);
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fontBrowser->setTransparency (true);
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CScrollbar* scrollbar = fontBrowser->getVerticalScrollbar ();
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if (scrollbar)
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{
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scrollbar->setBackgroundColor (uiDef.scrollbarBackgroundColor);
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scrollbar->setFrameColor (uiDef.scrollbarFrameColor);
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scrollbar->setScrollerColor (uiDef.scrollbarScrollerColor);
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}
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addView (fontBrowser);
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CRect controlRect (210, 0, 300, 20);
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auto* label = new CTextLabel (controlRect, "Size:");
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label->setFont (uiDef.font);
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label->setFontColor (uiDef.fontColor);
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label->sizeToFit ();
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label->setHoriAlign (kLeftText);
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label->setTransparency (true);
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label->setAutosizeFlags (kAutosizeLeft | kAutosizeTop);
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addView (label);
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CRect teRect = label->getViewSize ();
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teRect.left = teRect.right + 5.;
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teRect.right = controlRect.right;
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sizeEdit = new CTextEdit (teRect, this, CFontChooserInternal::kFontChooserSizeTag);
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sizeEdit->setFont (uiDef.font);
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sizeEdit->setFontColor (uiDef.fontColor);
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sizeEdit->setHoriAlign (kLeftText);
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sizeEdit->setTransparency (true);
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sizeEdit->setAutosizeFlags (kAutosizeLeft | kAutosizeTop);
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sizeEdit->setMax (2000);
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sizeEdit->setMin (6);
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sizeEdit->setValue (2000);
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sizeEdit->sizeToFit ();
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sizeEdit->setStringToValueFunction ([] (UTF8StringPtr txt, float& result, CTextEdit* textEdit) { result = UTF8StringView (txt).toFloat (); return true; });
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addView (sizeEdit);
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controlRect.offset (0, 20);
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boldBox = new CCheckBox (controlRect, this, CFontChooserInternal::kFontChooserBoldTag, "Bold");
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boldBox->setFont (uiDef.font);
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boldBox->setFontColor (uiDef.fontColor);
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boldBox->setAutosizeFlags (kAutosizeLeft | kAutosizeTop);
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boldBox->sizeToFit ();
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addView (boldBox);
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controlRect.offset (0, 20);
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italicBox = new CCheckBox (controlRect, this, CFontChooserInternal::kFontChooserItalicTag, "Italic");
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italicBox->setFont (uiDef.font);
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italicBox->setFontColor (uiDef.fontColor);
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italicBox->setAutosizeFlags (kAutosizeLeft | kAutosizeTop);
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italicBox->sizeToFit ();
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addView (italicBox);
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controlRect.offset (0, 20);
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underlineBox = new CCheckBox (controlRect, this, CFontChooserInternal::kFontChooserUnderlineTag, "Underline");
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underlineBox->setFont (uiDef.font);
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underlineBox->setFontColor (uiDef.fontColor);
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underlineBox->setAutosizeFlags (kAutosizeLeft | kAutosizeTop);
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underlineBox->sizeToFit ();
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addView (underlineBox);
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controlRect.offset (0, 20);
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strikeoutBox = new CCheckBox (controlRect, this, CFontChooserInternal::kFontChooserStrikeoutTag, "Strikeout");
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strikeoutBox->setFont (uiDef.font);
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strikeoutBox->setFontColor (uiDef.fontColor);
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strikeoutBox->setAutosizeFlags (kAutosizeLeft | kAutosizeTop);
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strikeoutBox->sizeToFit ();
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addView (strikeoutBox);
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CViewContainer* container = new CViewContainer (CRect (controlRect.left, controlRect.bottom+10, 300, 500));
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container->setBackgroundColor (uiDef.previewBackgroundColor);
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container->setAutosizeFlags (kAutosizeTop | kAutosizeBottom | kAutosizeLeft | kAutosizeRight);
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fontPreviewView = new CFontChooserInternal::FontPreviewView (CRect (10, 10, container->getWidth () - 10, container->getHeight () - 10), uiDef.previewTextColor);
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fontPreviewView->setAutosizeFlags (kAutosizeAll);
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container->addView (fontPreviewView);
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addView (container);
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setFont (initialFont ? initialFont : kSystemFont);
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sizeToFit ();
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this->delegate = delegate;
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}
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//-----------------------------------------------------------------------------
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CFontChooser::~CFontChooser () noexcept
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{
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if (selFont)
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selFont->forget ();
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}
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//-----------------------------------------------------------------------------
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void CFontChooser::setFont (CFontRef font)
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{
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if (font)
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{
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if (selFont)
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selFont->forget ();
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selFont = new CFontDesc (*font);
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sizeEdit->setValue ((float)font->getSize ());
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boldBox->setValue ((font->getStyle () & kBoldFace) ? 1.f : 0.f);
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italicBox->setValue ((font->getStyle () & kItalicFace) ? 1.f : 0.f);
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underlineBox->setValue ((font->getStyle () & kUnderlineFace) ? 1.f : 0.f);
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strikeoutBox->setValue ((font->getStyle () & kStrikethroughFace) ? 1.f : 0.f);
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auto it = fontNames.begin ();
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int32_t row = 0;
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while (it != fontNames.end ())
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{
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if (*it == font->getName ())
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{
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fontBrowser->setSelectedRow (row, true);
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break;
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}
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++it;
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row++;
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}
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static_cast<CFontChooserInternal::FontPreviewView*> (fontPreviewView)->setFont (selFont);
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}
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invalid ();
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}
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//-----------------------------------------------------------------------------
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void CFontChooser::valueChanged (CControl* pControl)
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{
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if (selFont == nullptr)
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return;
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switch (pControl->getTag ())
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{
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case CFontChooserInternal::kFontChooserSizeTag:
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{
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pControl->setValue (pControl->getValue ());
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selFont->setSize (pControl->getValue ());
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break;
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}
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case CFontChooserInternal::kFontChooserBoldTag:
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{
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if (pControl->getValue () == 1)
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selFont->setStyle (selFont->getStyle () | kBoldFace);
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else
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selFont->setStyle (selFont->getStyle () & ~kBoldFace);
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break;
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}
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case CFontChooserInternal::kFontChooserItalicTag:
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{
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if (pControl->getValue () == 1)
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selFont->setStyle (selFont->getStyle () | kItalicFace);
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else
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selFont->setStyle (selFont->getStyle () & ~kItalicFace);
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break;
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}
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case CFontChooserInternal::kFontChooserUnderlineTag:
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{
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if (pControl->getValue () == 1)
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selFont->setStyle (selFont->getStyle () | kUnderlineFace);
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else
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selFont->setStyle (selFont->getStyle () & ~kUnderlineFace);
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break;
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}
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case CFontChooserInternal::kFontChooserStrikeoutTag:
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{
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if (pControl->getValue () == 1)
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selFont->setStyle (selFont->getStyle () | kStrikethroughFace);
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else
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selFont->setStyle (selFont->getStyle () & ~kStrikethroughFace);
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break;
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}
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}
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if (delegate)
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delegate->fontChanged (this, selFont);
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static_cast<CFontChooserInternal::FontPreviewView*> (fontPreviewView)->setFont (selFont);
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}
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//-----------------------------------------------------------------------------
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void CFontChooser::dbSelectionChanged (int32_t selectedRow, GenericStringListDataBrowserSource* source)
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{
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if (selectedRow >= 0 && static_cast<size_t> (selectedRow) <= fontNames.size ())
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selFont->setName (fontNames[static_cast<size_t> (selectedRow)].data ());
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static_cast<CFontChooserInternal::FontPreviewView*> (fontPreviewView)->setFont (selFont);
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if (delegate)
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delegate->fontChanged (this, selFont);
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}
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//-----------------------------------------------------------------------------
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bool CFontChooser::attached (CView* parent)
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{
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if (CViewContainer::attached (parent))
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{
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fontBrowser->makeRowVisible (fontBrowser->getSelectedRow ());
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return true;
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}
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return false;
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}
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//-----------------------------------------------------------------------------
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void CFontChooser::onKeyboardEvent (KeyboardEvent& event)
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{
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fontBrowser->onKeyboardEvent (event);
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}
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} // VSTGUI
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