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Diffstat (limited to 'asciiquarium/src/frame.h')
| -rw-r--r-- | asciiquarium/src/frame.h | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/asciiquarium/src/frame.h b/asciiquarium/src/frame.h new file mode 100644 index 00000000..a6ad82bd --- /dev/null +++ b/asciiquarium/src/frame.h @@ -0,0 +1,150 @@ +/* + * Asciiquarium - Native KDE Screensaver based on the Asciiquarium program + * (c) Kirk Baucom <kbaucom@schizoid.com>, which you can find at + * http://www.robobunny.com/projects/asciiquarium/ + * + * Ported to KDE by Maksim Orlovich <maksim@kde.org> and + * Michael Pyne <michael.pyne@kdemail.net>. + * + * Copyright (c) 2003 Kirk Baucom <kbaucom@schizoid.com> + * Copyright (c) 2005 Maksim Orlovich <maksim@kde.org> + * Copyright (c) 2005 Michael Pyne <michael.pyne@kdemail.net> + * + * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#ifndef AA_FRAME_H +#define AA_FRAME_H + +#include <qstring.h> +#include <qvaluevector.h> +#include <qpixmap.h> +#include "screen.h" + +/** + * Represents a single frame of a sprite's animation. + * + * @see Sprite + */ +class Frame +{ + /** + * Two-dimensional array of Pixels, which represent the appearance of this + * frame. This is used to create m_pixmap and m_erasePixmap when they are + * needed. + * + * @see Pixel + */ + QValueVector<QValueVector<Screen::Pixel> > m_data; + + /// Masked pixmap of the animation frame. Created by convertDataToPixmap(). + QPixmap m_pixmap; + + /// Masked pixmap used to clear frame. Created by convertDataToPixmap(). + QPixmap m_erasePixmap; + + /// Height of this frame of animation in logical coordinates. + int m_height; + + /// Width of this frame of animation in logical coordinates. + int m_width; + + /// Character to be used as a special 'transparent' character. Normally is + /// the '?' character. + QChar m_transparentChar; + +public: + + /** + * Constructs an empty animation Frame. Do not insert this into a Sprite. + */ + Frame() : m_height(0), m_width(0) + { + } + + /** + * Constructs an animation frame. + * + * @param text Newline-separated text used to construct the Pixel arrays. + * The lines do not have to be equal length, any extra needed + * characters will automatically be filled with transparency. + * Any whitespace at the beginning of a line is converted to + * transparency as well. + * + * @param mask Newline-separated text used to mask \p text's colors. This + * can be empty or null in which case no masking is performed. + * However, if present, there should be the same number of + * lines in \p mask as in \p text, although individual lines + * can be shorter or empty as convienient. You can use letters + * to stand for colors, e.g. 'r' will make the letter in \p + * text at the same position dark red. + * + * @param defaultColor The default color to apply to characters. This + * color is used for all characters in \p text that are + * not altered by \p mask. + * + * @param transparent The character to use to represent transparent areas + * in \p text. This can be useful when the + * auto-transparency feature can't detect transparent + * areas. + */ + Frame(QString text, QString mask, QRgb defaultColor, QChar transparent = '?'); + + /** + * Paints this Frame into the given screen. + * + * @param scr The Screen to draw into. + * @param x The logical x coordinate of the left edge of the update region. + * @param y The logical y coordinate of the top edge of the update region. + */ + void paint(Screen* scr, int x, int y); + + /** + * Erases this Frame from the given screen. + * + * @param scr The Screen to draw into. + * @param x The logical x coordinate of the left edge of the update region. + * @param y The logical y coordinate of the top edge of the update region. + */ + void erase(Screen* scr, int x, int y); + + /// Returns the logical width of this frame. + int width() const + { + return m_width; + } + + /// Returns the logical height of this frame. + int height() const + { + return m_height; + } + +protected: + + /** + * This function converts the Pixel data in m_data to setup m_pixmap + * and m_erasePixmap, which are not setup until this function is called. + * + * m_data is not valid after this call is performed to save memory. + * + * @param screen The Screen we will be drawing into later. + */ + void convertDataToPixmap(const Screen *screen); +}; + +#endif + +// vim: set et ts=8 sw=4: |