mirror of https://github.com/minetest/irrlicht.git
108 lines
2.8 KiB
C++
108 lines
2.8 KiB
C++
// Copyright (C) 2002-2012 Nikolaus Gebhardt
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// This file is part of the "Irrlicht Engine".
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// For conditions of distribution and use, see copyright notice in irrlicht.h
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#pragma once
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#include "IGUIFontBitmap.h"
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#include "irrString.h"
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#include "IReadFile.h"
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#include "irrArray.h"
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#include <map>
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namespace irr
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{
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namespace video
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{
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class IVideoDriver;
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class IImage;
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}
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namespace gui
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{
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class IGUIEnvironment;
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class CGUIFont : public IGUIFontBitmap
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{
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public:
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//! constructor
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CGUIFont(IGUIEnvironment *env, const io::path &filename);
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//! destructor
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virtual ~CGUIFont();
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//! loads a font from a texture file
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bool load(const io::path &filename);
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//! loads a font from a texture file
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bool load(io::IReadFile *file);
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//! draws an text and clips it to the specified rectangle if wanted
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virtual void draw(const core::stringw &text, const core::rect<s32> &position,
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video::SColor color, bool hcenter = false,
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bool vcenter = false, const core::rect<s32> *clip = 0) override;
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//! returns the dimension of a text
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core::dimension2d<u32> getDimension(const wchar_t *text) const override;
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//! Calculates the index of the character in the text which is on a specific position.
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s32 getCharacterFromPos(const wchar_t *text, s32 pixel_x) const override;
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//! Returns the type of this font
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EGUI_FONT_TYPE getType() const override { return EGFT_BITMAP; }
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//! set an Pixel Offset on Drawing ( scale position on width )
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void setKerningWidth(s32 kerning) override;
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void setKerningHeight(s32 kerning) override;
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//! set an Pixel Offset on Drawing ( scale position on width )
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s32 getKerningWidth(const wchar_t *thisLetter = 0, const wchar_t *previousLetter = 0) const override;
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s32 getKerningHeight() const override;
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//! gets the sprite bank
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IGUISpriteBank *getSpriteBank() const override;
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//! returns the sprite number from a given character
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u32 getSpriteNoFromChar(const wchar_t *c) const override;
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void setInvisibleCharacters(const wchar_t *s) override;
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private:
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struct SFontArea
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{
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SFontArea() :
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underhang(0), overhang(0), width(0), spriteno(0) {}
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s32 underhang;
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s32 overhang;
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s32 width;
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u32 spriteno;
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};
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//! load & prepare font from ITexture
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bool loadTexture(video::IImage *image, const io::path &name);
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void readPositions(video::IImage *texture, s32 &lowerRightPositions);
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s32 getAreaFromCharacter(const wchar_t c) const;
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void setMaxHeight();
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void pushTextureCreationFlags(bool (&flags)[3]);
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void popTextureCreationFlags(const bool (&flags)[3]);
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core::array<SFontArea> Areas;
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std::map<wchar_t, s32> CharacterMap;
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video::IVideoDriver *Driver;
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IGUISpriteBank *SpriteBank;
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IGUIEnvironment *Environment;
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u32 WrongCharacter;
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s32 MaxHeight;
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s32 GlobalKerningWidth, GlobalKerningHeight;
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core::stringw Invisible;
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};
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} // end namespace gui
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} // end namespace irr
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