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Diffstat (limited to 'kolourpaint/widgets/kptoolwidgetbase.cpp')
| -rw-r--r-- | kolourpaint/widgets/kptoolwidgetbase.cpp | 608 |
1 files changed, 608 insertions, 0 deletions
diff --git a/kolourpaint/widgets/kptoolwidgetbase.cpp b/kolourpaint/widgets/kptoolwidgetbase.cpp new file mode 100644 index 00000000..a0042dbc --- /dev/null +++ b/kolourpaint/widgets/kptoolwidgetbase.cpp @@ -0,0 +1,608 @@ + +/* + Copyright (c) 2003,2004,2005 Clarence Dang <[email protected]> + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + + 1. Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + 2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + + +#define DEBUG_KP_TOOL_WIDGET_BASE 0 + + +#include <kptoolwidgetbase.h> + +#include <qbitmap.h> +#include <qcolor.h> +#include <qimage.h> +#include <qpainter.h> +#include <qtooltip.h> + +#include <kapplication.h> +#include <kconfig.h> +#include <kdebug.h> + +#include <kpdefs.h> +#include <kpeffectinvert.h> + + +kpToolWidgetBase::kpToolWidgetBase (QWidget *parent, const char *name) + : QFrame (parent, name), + m_invertSelectedPixmap (true), + m_selectedRow (-1), m_selectedCol (-1) +{ + if (!name) + kdError () << "kpToolWidgetBase::kpToolWidgetBase() without name" << endl; + + setFrameStyle (QFrame::Panel | QFrame::Sunken); + setFixedSize (44, 66); +} + +kpToolWidgetBase::~kpToolWidgetBase () +{ +} + + +// public +void kpToolWidgetBase::addOption (const QPixmap &pixmap, const QString &toolTip) +{ + if (m_pixmaps.isEmpty ()) + startNewOptionRow (); + + m_pixmaps.last ().append (pixmap); + m_pixmapRects.last ().append (QRect ()); + m_toolTips.last ().append (toolTip); +} + +// public +void kpToolWidgetBase::startNewOptionRow () +{ + m_pixmaps.resize (m_pixmaps.count () + 1); + m_pixmapRects.resize (m_pixmapRects.count () + 1); + m_toolTips.resize (m_toolTips.count () + 1); +} + +// public +void kpToolWidgetBase::finishConstruction (int fallBackRow, int fallBackCol) +{ +#if DEBUG_KP_TOOL_WIDGET_BASE + kdDebug () << "kpToolWidgetBase(" << name () + << ")::kpToolWidgetBase(fallBack:row=" << fallBackRow + << ",col=" << fallBackCol + << ")" + << endl; +#endif + + relayoutOptions (); + + const QPair <int, int> rowColPair = defaultSelectedRowAndCol (); + if (!setSelected (rowColPair.first, rowColPair.second, false/*don't save*/)) + { + if (!setSelected (fallBackRow, fallBackCol)) + { + if (!setSelected (0, 0)) + { + kdError () << "kpToolWidgetBase::finishConstruction() " + "can't even fall back to setSelected(row=0,col=0)" << endl; + } + } + } +} + + +// private +QValueVector <int> kpToolWidgetBase::spreadOutElements (const QValueVector <int> &sizes, int max) +{ + if (sizes.count () == 0) + return QValueVector <int> (); + else if (sizes.count () == 1) + return QValueVector <int> (1, sizes.first () > max ? 0 : 1/*margin*/); + + QValueVector <int> retOffsets (sizes.count ()); + + int totalSize = 0; + for (int i = 0; i < (int) sizes.count (); i++) + totalSize += sizes [i]; + + int margin = 1; + + // if don't fit with margin, then just return elements + // packed right next to each other + if (totalSize + margin * 2 > max) + { + retOffsets [0] = 0; + for (int i = 1; i < (int) sizes.count (); i++) + retOffsets [i] = retOffsets [i - 1] + sizes [i - 1]; + + return retOffsets; + } + + int maxLeftOver = max - (totalSize + margin * 2); + + int startCompensating = -1; + int numCompensate = 0; + + int spacing = 0; + + spacing = maxLeftOver / (sizes.count () - 1); + if (spacing * int (sizes.count () - 1) < maxLeftOver) + { + numCompensate = maxLeftOver - spacing * (sizes.count () - 1); + startCompensating = ((sizes.count () - 1) - numCompensate) / 2; + } + + retOffsets [0] = margin; + for (int i = 1; i < (int) sizes.count (); i++) + { + retOffsets [i] += retOffsets [i - 1] + + sizes [i - 1] + + spacing + + ((numCompensate && + i >= startCompensating && + i < startCompensating + numCompensate) ? 1 : 0); + } + + return retOffsets; +} + + +// public +QPair <int, int> kpToolWidgetBase::defaultSelectedRowAndCol () const +{ + int row = -1, col = -1; + + if (name ()) + { + KConfigGroupSaver cfgGroupSaver (kapp->config (), kpSettingsGroupTools); + KConfigBase *cfg = cfgGroupSaver.config (); + + QString nameString = QString::fromLatin1 (name ()); + + row = cfg->readNumEntry (nameString + QString::fromLatin1 (" Row"), -1); + col = cfg->readNumEntry (nameString + QString::fromLatin1 (" Col"), -1); + } + +#if DEBUG_KP_TOOL_WIDGET_BASE + kdDebug () << "kpToolWidgetBase(" << name () + << ")::defaultSelectedRowAndCol() returning row=" << row + << " col=" << col + << endl; +#endif + + return qMakePair (row, col); +} + +// public +int kpToolWidgetBase::defaultSelectedRow () const +{ + return defaultSelectedRowAndCol ().first; +} + +// public +int kpToolWidgetBase::defaultSelectedCol () const +{ + return defaultSelectedRowAndCol ().second; +} + +// public +void kpToolWidgetBase::saveSelectedAsDefault () const +{ +#if DEBUG_KP_TOOL_WIDGET_BASE + kdDebug () << "kpToolWidgetBase(" << name () + << ")::saveSelectedAsDefault() row=" << m_selectedRow + << " col=" << m_selectedCol << endl; +#endif + + if (!name ()) + return; + + KConfigGroupSaver cfgGroupSaver (kapp->config (), kpSettingsGroupTools); + KConfigBase *cfg = cfgGroupSaver.config (); + + QString nameString = QString::fromLatin1 (name ()); + cfg->writeEntry (nameString + QString::fromLatin1 (" Row"), m_selectedRow); + cfg->writeEntry (nameString + QString::fromLatin1 (" Col"), m_selectedCol); + cfg->sync (); +} + + +// public +void kpToolWidgetBase::relayoutOptions () +{ +#if DEBUG_KP_TOOL_WIDGET_BASE + kdDebug () << "kpToolWidgetBase::relayoutOptions()" << endl; +#endif + + while (!m_pixmaps.isEmpty () && m_pixmaps.last ().count () == 0) + { + #if DEBUG_KP_TOOL_WIDGET_BASE + kdDebug () << "\tkilling #" << m_pixmaps.count () - 1 << endl; + #endif + m_pixmaps.resize (m_pixmaps.count () - 1); + m_pixmapRects.resize (m_pixmapRects.count () - 1); + m_toolTips.resize (m_toolTips.count () - 1); + } + + if (m_pixmaps.isEmpty ()) + return; + +#if DEBUG_KP_TOOL_WIDGET_BASE + kdDebug () << "\tsurvived killing of empty rows" << endl; + kdDebug () << "\tfinding heights of rows:" << endl; +#endif + + QValueVector <int> maxHeightOfRow (m_pixmaps.count ()); + + for (int r = 0; r < (int) m_pixmaps.count (); r++) + { + for (int c = 0; c < (int) m_pixmaps [r].count (); c++) + { + if (c == 0 || m_pixmaps [r][c].height () > maxHeightOfRow [r]) + maxHeightOfRow [r] = m_pixmaps [r][c].height (); + } + #if DEBUG_KP_TOOL_WIDGET_BASE + kdDebug () << "\t\t" << r << ": " << maxHeightOfRow [r] << endl; + #endif + } + + QValueVector <int> rowYOffset = spreadOutElements (maxHeightOfRow, height ()); +#if DEBUG_KP_TOOL_WIDGET_BASE + kdDebug () << "\tspread out offsets of rows:" << endl; + for (int r = 0; r < (int) rowYOffset.count (); r++) + kdDebug () << "\t\t" << r << ": " << rowYOffset [r] << endl; +#endif + + for (int r = 0; r < (int) m_pixmaps.count (); r++) + { + #if DEBUG_KP_TOOL_WIDGET_BASE + kdDebug () << "\tlaying out row " << r << ":" << endl; + #endif + + QValueVector <int> widths (m_pixmaps [r].count ()); + for (int c = 0; c < (int) m_pixmaps [r].count (); c++) + widths [c] = m_pixmaps [r][c].width (); + #if DEBUG_KP_TOOL_WIDGET_BASE + kdDebug () << "\t\twidths of cols:" << endl; + for (int c = 0; c < (int) m_pixmaps [r].count (); c++) + kdDebug () << "\t\t\t" << c << ": " << widths [c] << endl; + #endif + + QValueVector <int> colXOffset = spreadOutElements (widths, width ()); + #if DEBUG_KP_TOOL_WIDGET_BASE + kdDebug () << "\t\tspread out offsets of cols:" << endl; + for (int c = 0; c < (int) colXOffset.count (); c++) + kdDebug () << "\t\t\t" << c << ": " << colXOffset [c] << endl; + #endif + + for (int c = 0; c < (int) colXOffset.count (); c++) + { + int x = colXOffset [c]; + int y = rowYOffset [r]; + int w, h; + + if (c == (int) colXOffset.count () - 1) + { + if (x + m_pixmaps [r][c].width () >= width ()) + w = m_pixmaps [r][c].width (); + else + w = width () - 1 - x; + } + else + w = colXOffset [c + 1] - x; + + if (r == (int) m_pixmaps.count () - 1) + { + if (y + m_pixmaps [r][c].height () >= height ()) + h = m_pixmaps [r][c].height (); + else + h = height () - 1 - y; + } + else + h = rowYOffset [r + 1] - y; + + m_pixmapRects [r][c] = QRect (x, y, w, h); + + if (!m_toolTips [r][c].isEmpty ()) + QToolTip::add (this, m_pixmapRects [r][c], m_toolTips [r][c]); + } + } + + update (); +} + + +// public +int kpToolWidgetBase::selectedRow () const +{ + return m_selectedRow; +} + +// public +int kpToolWidgetBase::selectedCol () const +{ + return m_selectedCol; +} + +// public +int kpToolWidgetBase::selected () const +{ + if (m_selectedRow < 0 || + m_selectedRow >= (int) m_pixmaps.count () || + m_selectedCol < 0) + { + return -1; + } + + int upto = 0; + for (int y = 0; y < m_selectedRow; y++) + upto += m_pixmaps [y].count (); + + if (m_selectedCol >= (int) m_pixmaps [m_selectedRow].count ()) + return -1; + + upto += m_selectedCol; + + return upto; +} + + +// public +bool kpToolWidgetBase::hasPreviousOption (int *row, int *col) const +{ +#if DEBUG_KP_TOOL_WIDGET_BASE + kdDebug () << "kpToolWidgetBase" << name () + << "::hasPreviousOption() current row=" << m_selectedRow + << " col=" << m_selectedCol + << endl; +#endif + if (row) + *row = -1; + if (col) + *col = -1; + + + if (m_selectedRow < 0 || m_selectedCol < 0) + return false; + + int newRow = m_selectedRow, + newCol = m_selectedCol; + + newCol--; + if (newCol < 0) + { + newRow--; + if (newRow < 0) + return false; + + newCol = m_pixmaps [newRow].count () - 1; + if (newCol < 0) + return false; + } + + + if (row) + *row = newRow; + if (col) + *col = newCol; + + return true; +} + +// public +bool kpToolWidgetBase::hasNextOption (int *row, int *col) const +{ +#if DEBUG_KP_TOOL_WIDGET_BASE + kdDebug () << "kpToolWidgetBase" << name () + << "::hasNextOption() current row=" << m_selectedRow + << " col=" << m_selectedCol + << endl; +#endif + + if (row) + *row = -1; + if (col) + *col = -1; + + + if (m_selectedRow < 0 || m_selectedCol < 0) + return false; + + int newRow = m_selectedRow, + newCol = m_selectedCol; + + newCol++; + if (newCol >= (int) m_pixmaps [newRow].count ()) + { + newRow++; + if (newRow >= (int) m_pixmaps.count ()) + return false; + + newCol = 0; + if (newCol >= (int) m_pixmaps [newRow].count ()) + return false; + } + + + if (row) + *row = newRow; + if (col) + *col = newCol; + + return true; +} + + +// public slot virtual +bool kpToolWidgetBase::setSelected (int row, int col, bool saveAsDefault) +{ +#if DEBUG_KP_TOOL_WIDGET_BASE + kdDebug () << "kpToolWidgetBase::setSelected(row=" << row + << ",col=" << col + << ",saveAsDefault=" << saveAsDefault + << ")" + << endl; +#endif + + if (row < 0 || col < 0 || + row >= (int) m_pixmapRects.count () || col >= (int) m_pixmapRects [row].count ()) + { + #if DEBUG_KP_TOOL_WIDGET_BASE + kdDebug () << "\tout of range" << endl; + #endif + return false; + } + + if (row == m_selectedRow && col == m_selectedCol) + { + #if DEBUG_KP_TOOL_WIDGET_BASE + kdDebug () << "\tNOP" << endl; + #endif + + if (saveAsDefault) + saveSelectedAsDefault (); + + return true; + } + + const int wasSelectedRow = m_selectedRow; + const int wasSelectedCol = m_selectedCol; + + m_selectedRow = row, m_selectedCol = col; + + if (wasSelectedRow >= 0 && wasSelectedCol >= 0) + { + // unhighlight old option + update (m_pixmapRects [wasSelectedRow][wasSelectedCol]); + } + + // highlight new option + update (m_pixmapRects [row][col]); + +#if DEBUG_KP_TOOL_WIDGET_BASE + kdDebug () << "\tOK" << endl; +#endif + + if (saveAsDefault) + saveSelectedAsDefault (); + + emit optionSelected (row, col); + return true; +} + +// public slot +bool kpToolWidgetBase::setSelected (int row, int col) +{ + return setSelected (row, col, true/*set as default*/); +} + + +// public slot +bool kpToolWidgetBase::selectPreviousOption () +{ + int newRow, newCol; + if (!hasPreviousOption (&newRow, &newCol)) + return false; + + return setSelected (newRow, newCol); +} + +// public slot +bool kpToolWidgetBase::selectNextOption () +{ + int newRow, newCol; + if (!hasNextOption (&newRow, &newCol)) + return false; + + return setSelected (newRow, newCol); +} + + +// protected virtual [base QWidget] +void kpToolWidgetBase::mousePressEvent (QMouseEvent *e) +{ + e->ignore (); + + if (e->button () != Qt::LeftButton) + return; + + + for (int i = 0; i < (int) m_pixmapRects.count (); i++) + { + for (int j = 0; j < (int) m_pixmapRects [i].count (); j++) + { + if (m_pixmapRects [i][j].contains (e->pos ())) + { + setSelected (i, j); + e->accept (); + return; + } + } + } +} + +// protected virtual [base QFrame] +void kpToolWidgetBase::drawContents (QPainter *painter) +{ +#if DEBUG_KP_TOOL_WIDGET_BASE && 1 + kdDebug () << "kpToolWidgetBase::drawContents(): rect=" << contentsRect () << endl; +#endif + + for (int i = 0; i < (int) m_pixmaps.count (); i++) + { + #if DEBUG_KP_TOOL_WIDGET_BASE && 1 + kdDebug () << "\tRow: " << i << endl; + #endif + + for (int j = 0; j < (int) m_pixmaps [i].count (); j++) + { + QRect rect = m_pixmapRects [i][j]; + QPixmap pixmap = m_pixmaps [i][j]; + + #if DEBUG_KP_TOOL_WIDGET_BASE && 1 + kdDebug () << "\t\tCol: " << j << " rect=" << rect << endl; + #endif + + if (i == m_selectedRow && j == m_selectedCol) + { + painter->fillRect (rect, Qt::blue/*selection color*/); + + if (m_invertSelectedPixmap) + kpEffectInvertCommand::apply (&pixmap); + } + + #if DEBUG_KP_TOOL_WIDGET_BASE && 1 + kdDebug () << "\t\t\tdraw pixmap @ x=" + << rect.x () + (rect.width () - pixmap.width ()) / 2 + << " y=" + << rect.y () + (rect.height () - pixmap.height ()) / 2 + << endl; + + #endif + + painter->drawPixmap (QPoint (rect.x () + (rect.width () - pixmap.width ()) / 2, + rect.y () + (rect.height () - pixmap.height ()) / 2), + pixmap); + } + } +} + +#include <kptoolwidgetbase.moc> |