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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#ifndef SCI_GRAPHICS_TEXT32_H
#define SCI_GRAPHICS_TEXT32_H
#include "sci/graphics/celobj32.h"
#include "sci/graphics/frameout.h"
namespace Sci {
enum TextAlign {
kTextAlignLeft = 0,
kTextAlignCenter = 1,
kTextAlignRight = -1
};
/**
* This class handles text calculation and rendering for
* SCI32 games. The text calculation system in SCI32 is
* nearly the same as SCI16, which means this class behaves
* similarly. Notably, GfxText32 maintains drawing
* parameters across multiple calls.
*/
class GfxText32 {
private:
/**
* The resource ID of the default font used by the game.
*
* @todo Check all SCI32 games to learn what their
* default font is.
*/
static int16 _defaultFontId;
/**
* The width and height of the currently active text
* bitmap, in text-system coordinates.
*/
int16 _width, _height;
/**
* The color used to draw text.
*/
uint8 _foreColor;
/**
* The background color of the text box.
*/
uint8 _backColor;
/**
* The transparent color of the text box. Used when
* compositing the bitmap onto the screen.
*/
uint8 _skipColor;
/**
* The rect where the text is drawn within the bitmap.
* This rect is clipped to the dimensions of the bitmap.
*/
Common::Rect _textRect;
/**
* The text being drawn to the currently active text
* bitmap.
*/
Common::String _text;
/**
* The font being used to draw the text.
*/
GuiResourceId _fontId;
/**
* The color of the text box border.
*/
int16 _borderColor;
/**
* TODO: Document
*/
bool _dimmed;
/**
* The text alignment for the drawn text.
*/
TextAlign _alignment;
/**
* The memory handle of the currently active bitmap.
*/
reg_t _bitmap;
/**
* TODO: Document
*/
int _field_22;
/**
* The currently active font resource used to write text
* into the bitmap.
*
* @note SCI engine builds the font table directly
* inside of FontMgr; we use GfxFont instead.
*/
GfxFont *_font;
// TODO: This is general for all CelObjMem and should be
// put in a single location, like maybe as a static
// method of CelObjMem?!
void buildBitmapHeader(byte *bitmap, const int16 width, const int16 height, const uint8 skipColor, const int16 displaceX, const int16 displaceY, const int16 scaledWidth, const int16 scaledHeight, const uint32 hunkPaletteOffset, const bool useRemap) const;
void drawFrame(const Common::Rect &rect, const int size, const uint8 color, const bool doScaling);
void drawTextBox();
void erase(const Common::Rect &rect, const bool doScaling);
inline Common::Rect scaleRect(const Common::Rect &rect) {
Common::Rect scaledRect(rect);
int16 scriptWidth = g_sci->_gfxFrameout->getCurrentBuffer().scriptWidth;
int16 scriptHeight = g_sci->_gfxFrameout->getCurrentBuffer().scriptHeight;
Ratio scaleX(_scaledWidth, scriptWidth);
Ratio scaleY(_scaledHeight, scriptHeight);
mul(scaledRect, scaleX, scaleY);
return scaledRect;
}
public:
GfxText32(SegManager *segMan, GfxCache *fonts, GfxScreen *screen);
/**
* The size of the x-dimension of the coordinate system
* used by the text renderer.
*/
int16 _scaledWidth;
/**
* The size of the y-dimension of the coordinate system
* used by the text renderer.
*/
int16 _scaledHeight;
reg_t createFontBitmap(int16 width, int16 height, const Common::Rect &rect, const Common::String &text, const uint8 foreColor, const uint8 backColor, const uint8 skipColor, const GuiResourceId fontId, TextAlign alignment, const int16 borderColor, bool dimmed, const bool doScaling, reg_t *outBitmapObject);
reg_t createTitledFontBitmap(CelInfo32 &celInfo, Common::Rect &rect, Common::String &text, int16 foreColor, int16 backColor, int font, int16 skipColor, int16 borderColor, bool dimmed, void *unknown1);
#pragma mark -
#pragma mark Old stuff
reg_t createTextBitmap(reg_t textObject, uint16 maxWidth = 0, uint16 maxHeight = 0, reg_t prevHunk = NULL_REG);
reg_t createScrollTextBitmap(Common::String text, reg_t textObject, uint16 maxWidth = 0, uint16 maxHeight = 0, reg_t prevHunk = NULL_REG);
void drawTextBitmap(int16 x, int16 y, Common::Rect planeRect, reg_t textObject);
void drawScrollTextBitmap(reg_t textObject, reg_t hunkId, uint16 x, uint16 y);
void disposeTextBitmap(reg_t hunkId);
int16 GetLongest(const char *text, int16 maxWidth, GfxFont *font);
void kernelTextSize(const char *text, int16 font, int16 maxWidth, int16 *textWidth, int16 *textHeight);
private:
reg_t createTextBitmapInternal(Common::String &text, reg_t textObject, uint16 maxWidth, uint16 maxHeight, reg_t hunkId);
void drawTextBitmapInternal(int16 x, int16 y, Common::Rect planeRect, reg_t textObject, reg_t hunkId);
int16 Size(Common::Rect &rect, const char *text, GuiResourceId fontId, int16 maxWidth);
void Width(const char *text, int16 from, int16 len, GuiResourceId orgFontId, int16 &textWidth, int16 &textHeight, bool restoreFont);
void StringWidth(const char *str, GuiResourceId orgFontId, int16 &textWidth, int16 &textHeight);
SegManager *_segMan;
GfxCache *_cache;
GfxScreen *_screen;
};
} // End of namespace Sci
#endif
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