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Diffstat (limited to 'kolourpaint/tools/kptoolpen.cpp')
| -rw-r--r-- | kolourpaint/tools/kptoolpen.cpp | 1145 |
1 files changed, 1145 insertions, 0 deletions
diff --git a/kolourpaint/tools/kptoolpen.cpp b/kolourpaint/tools/kptoolpen.cpp new file mode 100644 index 00000000..eb731ceb --- /dev/null +++ b/kolourpaint/tools/kptoolpen.cpp @@ -0,0 +1,1145 @@ + +/* + Copyright (c) 2003,2004,2005 Clarence Dang <dang@kde.org> + 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_PEN 0 + +#include <qapplication.h> +#include <qbitmap.h> +#include <qcursor.h> +#include <qimage.h> +#include <qpainter.h> +#if DEBUG_KP_TOOL_PEN + #include <qdatetime.h> +#endif + +#include <kdebug.h> +#include <klocale.h> + +#include <kpcolor.h> +#include <kpcommandhistory.h> +#include <kpcursorprovider.h> +#include <kptoolpen.h> +#include <kpdefs.h> +#include <kpdocument.h> +#include <kpmainwindow.h> +#include <kppixmapfx.h> +#include <kptemppixmap.h> +#include <kptoolclear.h> +#include <kptooltoolbar.h> +#include <kptoolwidgetbrush.h> +#include <kptoolwidgeterasersize.h> +#include <kpviewmanager.h> + +/* + * kpToolPen + */ + +kpToolPen::kpToolPen (Mode mode, + const QString &text, const QString &description, + int key, + kpMainWindow *mainWindow, const char *name) + : kpTool (text, description, key, mainWindow, name), + m_mode (mode), + m_toolWidgetBrush (0), + m_toolWidgetEraserSize (0), + m_currentCommand (0) +{ +} + +kpToolPen::kpToolPen (kpMainWindow *mainWindow) + : kpTool (i18n ("Pen"), i18n ("Draws dots and freehand strokes"), + Qt::Key_P, + mainWindow, "tool_pen"), + m_mode (Pen), + m_toolWidgetBrush (0), + m_toolWidgetEraserSize (0), + m_currentCommand (0) +{ +} + +void kpToolPen::setMode (Mode mode) +{ + int usesPixmaps = (mode & (DrawsPixmaps | WashesPixmaps)); + int usesBrushes = (mode & (SquareBrushes | DiverseBrushes)); + + if ((usesPixmaps && !usesBrushes) || + (usesBrushes && !usesPixmaps)) + { + kdError () << "kpToolPen::setMode() passed invalid mode" << endl; + return; + } + + m_mode = mode; +} + +kpToolPen::~kpToolPen () +{ +} + + +// private +QString kpToolPen::haventBegunDrawUserMessage () const +{ + switch (m_mode) + { + case Pen: + case Brush: + return i18n ("Click to draw dots or drag to draw strokes."); + return i18n ("Click to draw dots or drag to draw strokes."); + case Eraser: + return i18n ("Click or drag to erase."); + case ColorWasher: + return i18n ("Click or drag to erase pixels of the foreground color."); + default: + return QString::null; + } +} + +// virtual +void kpToolPen::begin () +{ + m_toolWidgetBrush = 0; + m_brushIsDiagonalLine = false; + + kpToolToolBar *tb = toolToolBar (); + if (!tb) + return; + + if (m_mode & SquareBrushes) + { + m_toolWidgetEraserSize = tb->toolWidgetEraserSize (); + connect (m_toolWidgetEraserSize, SIGNAL (eraserSizeChanged (int)), + this, SLOT (slotEraserSizeChanged (int))); + m_toolWidgetEraserSize->show (); + + slotEraserSizeChanged (m_toolWidgetEraserSize->eraserSize ()); + + viewManager ()->setCursor (kpCursorProvider::lightCross ()); + } + + if (m_mode & DiverseBrushes) + { + m_toolWidgetBrush = tb->toolWidgetBrush (); + connect (m_toolWidgetBrush, SIGNAL (brushChanged (const QPixmap &, bool)), + this, SLOT (slotBrushChanged (const QPixmap &, bool))); + m_toolWidgetBrush->show (); + + slotBrushChanged (m_toolWidgetBrush->brush (), + m_toolWidgetBrush->brushIsDiagonalLine ()); + + viewManager ()->setCursor (kpCursorProvider::lightCross ()); + } + + setUserMessage (haventBegunDrawUserMessage ()); +} + +// virtual +void kpToolPen::end () +{ + if (m_toolWidgetEraserSize) + { + disconnect (m_toolWidgetEraserSize, SIGNAL (eraserSizeChanged (int)), + this, SLOT (slotEraserSizeChanged (int))); + m_toolWidgetEraserSize = 0; + } + + if (m_toolWidgetBrush) + { + disconnect (m_toolWidgetBrush, SIGNAL (brushChanged (const QPixmap &, bool)), + this, SLOT (slotBrushChanged (const QPixmap &, bool))); + m_toolWidgetBrush = 0; + } + + kpViewManager *vm = viewManager (); + if (vm) + { + if (vm->tempPixmap () && vm->tempPixmap ()->isBrush ()) + vm->invalidateTempPixmap (); + + if (m_mode & (SquareBrushes | DiverseBrushes)) + vm->unsetCursor (); + } + + // save memory + for (int i = 0; i < 2; i++) + m_brushPixmap [i].resize (0, 0); + m_cursorPixmap.resize (0, 0); +} + +// virtual +void kpToolPen::beginDraw () +{ + switch (m_mode) + { + case Pen: + m_currentCommand = new kpToolPenCommand (i18n ("Pen"), mainWindow ()); + break; + case Brush: + m_currentCommand = new kpToolPenCommand (i18n ("Brush"), mainWindow ()); + break; + case Eraser: + m_currentCommand = new kpToolPenCommand (i18n ("Eraser"), mainWindow ()); + break; + case ColorWasher: + m_currentCommand = new kpToolPenCommand (i18n ("Color Eraser"), mainWindow ()); + break; + + default: + m_currentCommand = new kpToolPenCommand (i18n ("Custom Pen or Brush"), mainWindow ()); + break; + } + + // we normally show the Brush pix in the foreground colour but if the + // user starts drawing in the background color, we don't want to leave + // the cursor in the foreground colour -- just hide it in all cases + // to avoid confusion + viewManager ()->invalidateTempPixmap (); + + setUserMessage (cancelUserMessage ()); +} + +// virtual +void kpToolPen::hover (const QPoint &point) +{ +#if DEBUG_KP_TOOL_PEN && 0 + kdDebug () << "kpToolPen::hover(" << point << ")" + << " hasBegun=" << hasBegun () + << " hasBegunDraw=" << hasBegunDraw () + << " cursorPixmap.isNull=" << m_cursorPixmap.isNull () + << endl; +#endif + if (point != KP_INVALID_POINT && !m_cursorPixmap.isNull ()) + { + // (for hotPoint() as m_mouseButton is not normally defined in hover()) + m_mouseButton = 0; + + kpTempPixmap::RenderMode renderMode; + QPixmap cursorPixmapForTempPixmap = m_cursorPixmap; + + if (m_mode & SquareBrushes) + renderMode = kpTempPixmap::SetPixmap; + else if (m_mode & DiverseBrushes) + { + if (color (0).isOpaque ()) + renderMode = kpTempPixmap::PaintPixmap; + else + { + renderMode = kpTempPixmap::PaintMaskTransparentWithBrush; + cursorPixmapForTempPixmap = kpPixmapFX::getNonNullMask (m_cursorPixmap); + } + } + + viewManager ()->setFastUpdates (); + + viewManager ()->setTempPixmap ( + kpTempPixmap (true/*brush*/, + renderMode, + hotPoint (), + cursorPixmapForTempPixmap)); + + viewManager ()->restoreFastUpdates (); + } + +#if DEBUG_KP_TOOL_PEN && 0 + if (document ()->rect ().contains (point)) + { + QImage image = kpPixmapFX::convertToImage (*document ()->pixmap ()); + + QRgb v = image.pixel (point.x (), point.y ()); + kdDebug () << "(" << point << "): r=" << qRed (v) + << " g=" << qGreen (v) + << " b=" << qBlue (v) + << " a=" << qAlpha (v) + << endl; + } +#endif + + setUserShapePoints (point); +} + +bool kpToolPen::wash (QPainter *painter, QPainter *maskPainter, + const QImage &image, + const kpColor &colorToReplace, + const QRect &imageRect, int plotx, int ploty) +{ + return wash (painter, maskPainter, image, colorToReplace, imageRect, hotRect (plotx, ploty)); +} + +bool kpToolPen::wash (QPainter *painter, QPainter *maskPainter, + const QImage &image, + const kpColor &colorToReplace, + const QRect &imageRect, const QRect &drawRect) +{ + bool didSomething = false; + +#if DEBUG_KP_TOOL_PEN && 0 + kdDebug () << "kpToolPen::wash(imageRect=" << imageRect + << ",drawRect=" << drawRect + << ")" << endl; +#endif + +// make use of scanline coherence +#define FLUSH_LINE() \ +{ \ + if (painter && painter->isActive ()) \ + painter->drawLine (startDrawX, y, x - 1, y); \ + if (maskPainter && maskPainter->isActive ()) \ + maskPainter->drawLine (startDrawX, y, x - 1, y); \ + didSomething = true; \ + startDrawX = -1; \ +} + + const int maxY = drawRect.bottom () - imageRect.top (); + + const int minX = drawRect.left () - imageRect.left (); + const int maxX = drawRect.right () - imageRect.left (); + + for (int y = drawRect.top () - imageRect.top (); + y <= maxY; + y++) + { + int startDrawX = -1; + + int x; // for FLUSH_LINE() + for (x = minX; x <= maxX; x++) + { + #if DEBUG_KP_TOOL_PEN && 0 + fprintf (stderr, "y=%i x=%i colorAtPixel=%08X colorToReplace=%08X ... ", + y, x, + kpPixmapFX::getColorAtPixel (image, QPoint (x, y)).toQRgb (), + colorToReplace.toQRgb ()); + #endif + if (kpPixmapFX::getColorAtPixel (image, QPoint (x, y)).isSimilarTo (colorToReplace, processedColorSimilarity ())) + { + #if DEBUG_KP_TOOL_PEN && 0 + fprintf (stderr, "similar\n"); + #endif + if (startDrawX < 0) + startDrawX = x; + } + else + { + #if DEBUG_KP_TOOL_PEN && 0 + fprintf (stderr, "different\n"); + #endif + if (startDrawX >= 0) + FLUSH_LINE (); + } + } + + if (startDrawX >= 0) + FLUSH_LINE (); + } + +#undef FLUSH_LINE + + return didSomething; +} + +// virtual +void kpToolPen::globalDraw () +{ + // it's easiest to reimplement globalDraw() here rather than in + // all the relevant subclasses + + if (m_mode == Eraser) + { + #if DEBUG_KP_TOOL_PEN + kdDebug () << "kpToolPen::globalDraw() eraser" << endl; + #endif + mainWindow ()->commandHistory ()->addCommand ( + new kpToolClearCommand (false/*act on doc, not sel*/, mainWindow ())); + } + else if (m_mode == ColorWasher) + { + #if DEBUG_KP_TOOL_PEN + kdDebug () << "kpToolPen::globalDraw() colour eraser" << endl; + #endif + if (foregroundColor () == backgroundColor () && processedColorSimilarity () == 0) + return; + + QApplication::setOverrideCursor (Qt::waitCursor); + + kpToolPenCommand *cmd = new kpToolPenCommand ( + i18n ("Color Eraser"), mainWindow ()); + + QPainter painter, maskPainter; + QBitmap maskBitmap; + + if (backgroundColor ().isOpaque ()) + { + painter.begin (document ()->pixmap ()); + painter.setPen (backgroundColor ().toQColor ()); + } + + if (backgroundColor ().isTransparent () || + document ()->pixmap ()->mask ()) + { + maskBitmap = kpPixmapFX::getNonNullMask (*document ()->pixmap ()); + maskPainter.begin (&maskBitmap); + + maskPainter.setPen (backgroundColor ().maskColor ()); + } + + const QImage image = kpPixmapFX::convertToImage (*document ()->pixmap ()); + QRect rect = document ()->rect (); + + const bool didSomething = wash (&painter, &maskPainter, image, + foregroundColor ()/*replace foreground*/, + rect, rect); + + // flush + if (painter.isActive ()) + painter.end (); + + if (maskPainter.isActive ()) + maskPainter.end (); + + if (didSomething) + { + if (!maskBitmap.isNull ()) + document ()->pixmap ()->setMask (maskBitmap); + + + document ()->slotContentsChanged (rect); + + + cmd->updateBoundingRect (rect); + cmd->finalize (); + + mainWindow ()->commandHistory ()->addCommand (cmd, false /* don't exec */); + + // don't delete - it's up to the commandHistory + cmd = 0; + } + else + { + #if DEBUG_KP_TOOL_PEN + kdDebug () << "\tisNOP" << endl; + #endif + delete cmd; + cmd = 0; + } + + QApplication::restoreOverrideCursor (); + } +} + +// virtual +// TODO: refactor! +void kpToolPen::draw (const QPoint &thisPoint, const QPoint &lastPoint, const QRect &) +{ + if ((m_mode & WashesPixmaps) && (foregroundColor () == backgroundColor ()) && processedColorSimilarity () == 0) + return; + + // sync: remember to restoreFastUpdates() in all exit paths + viewManager ()->setFastUpdates (); + + if (m_brushIsDiagonalLine ? currentPointCardinallyNextToLast () : currentPointNextToLast ()) + { + if (m_mode & DrawsPixels) + { + QPixmap pixmap (1, 1); + + const kpColor c = color (m_mouseButton); + + // OPT: this seems hopelessly inefficient + if (c.isOpaque ()) + { + pixmap.fill (c.toQColor ()); + } + else + { + QBitmap mask (1, 1); + mask.fill (Qt::color0/*transparent*/); + + pixmap.setMask (mask); + } + + // draw onto doc + document ()->setPixmapAt (pixmap, thisPoint); + + m_currentCommand->updateBoundingRect (thisPoint); + } + // Brush & Eraser + else if (m_mode & DrawsPixmaps) + { + if (color (m_mouseButton).isOpaque ()) + document ()->paintPixmapAt (m_brushPixmap [m_mouseButton], hotPoint ()); + else + { + kpPixmapFX::paintMaskTransparentWithBrush (document ()->pixmap (), + hotPoint (), + kpPixmapFX::getNonNullMask (m_brushPixmap [m_mouseButton])); + document ()->slotContentsChanged (hotRect ()); + } + + m_currentCommand->updateBoundingRect (hotRect ()); + } + else if (m_mode & WashesPixmaps) + { + #if DEBUG_KP_TOOL_PEN + kdDebug () << "Washing pixmap (immediate)" << endl; + QTime timer; + #endif + QRect rect = hotRect (); + #if DEBUG_KP_TOOL_PEN + timer.start (); + #endif + QPixmap pixmap = document ()->getPixmapAt (rect); + #if DEBUG_KP_TOOL_PEN + kdDebug () << "\tget from doc: " << timer.restart () << "ms" << endl; + #endif + const QImage image = kpPixmapFX::convertToImage (pixmap); + #if DEBUG_KP_TOOL_PEN + kdDebug () << "\tconvert to image: " << timer.restart () << "ms" << endl; + #endif + QPainter painter, maskPainter; + QBitmap maskBitmap; + + if (color (m_mouseButton).isOpaque ()) + { + painter.begin (&pixmap); + painter.setPen (color (m_mouseButton).toQColor ()); + } + + if (color (m_mouseButton).isTransparent () || + pixmap.mask ()) + { + maskBitmap = kpPixmapFX::getNonNullMask (pixmap); + maskPainter.begin (&maskBitmap); + maskPainter.setPen (color (m_mouseButton).maskColor ()); + } + + bool didSomething = wash (&painter, &maskPainter, + image, + color (1 - m_mouseButton)/*color to replace*/, + rect, rect); + + if (painter.isActive ()) + painter.end (); + + if (maskPainter.isActive ()) + maskPainter.end (); + + if (didSomething) + { + if (!maskBitmap.isNull ()) + pixmap.setMask (maskBitmap); + + #if DEBUG_KP_TOOL_PEN + kdDebug () << "\twashed: " << timer.restart () << "ms" << endl; + #endif + document ()->setPixmapAt (pixmap, hotPoint ()); + #if DEBUG_KP_TOOL_PEN + kdDebug () << "\tset doc: " << timer.restart () << "ms" << endl; + #endif + m_currentCommand->updateBoundingRect (hotRect ()); + #if DEBUG_KP_TOOL_PEN + kdDebug () << "\tupdate boundingRect: " << timer.restart () << "ms" << endl; + kdDebug () << "\tdone" << endl; + #endif + } + + #if DEBUG_KP_TOOL_PEN && 1 + kdDebug () << endl; + #endif + } + } + // in reality, the system is too slow to give us all the MouseMove events + // so we "interpolate" the missing points :) + else + { + // find bounding rectangle + QRect rect = QRect (thisPoint, lastPoint).normalize (); + if (m_mode != DrawsPixels) + rect = neededRect (rect, m_brushPixmap [m_mouseButton].width ()); + + #if DEBUG_KP_TOOL_PEN + if (m_mode & WashesPixmaps) + { + kdDebug () << "Washing pixmap (w=" << rect.width () + << ",h=" << rect.height () << ")" << endl; + } + QTime timer; + int convAndWashTime; + #endif + + const kpColor c = color (m_mouseButton); + bool transparent = c.isTransparent (); + + QPixmap pixmap = document ()->getPixmapAt (rect); + QBitmap maskBitmap; + + QPainter painter, maskPainter; + + if (m_mode & (DrawsPixels | WashesPixmaps)) + { + if (!transparent) + { + painter.begin (&pixmap); + painter.setPen (c.toQColor ()); + } + + if (transparent || pixmap.mask ()) + { + maskBitmap = kpPixmapFX::getNonNullMask (pixmap); + maskPainter.begin (&maskBitmap); + maskPainter.setPen (c.maskColor ()); + } + } + + QImage image; + if (m_mode & WashesPixmaps) + { + #if DEBUG_KP_TOOL_PEN + timer.start (); + #endif + image = kpPixmapFX::convertToImage (pixmap); + #if DEBUG_KP_TOOL_PEN + convAndWashTime = timer.restart (); + kdDebug () << "\tconvert to image: " << convAndWashTime << " ms" << endl; + #endif + } + + bool didSomething = false; + + if (m_mode & DrawsPixels) + { + QPoint sp = lastPoint - rect.topLeft (), ep = thisPoint - rect.topLeft (); + if (painter.isActive ()) + painter.drawLine (sp, ep); + + if (maskPainter.isActive ()) + maskPainter.drawLine (sp, ep); + + didSomething = true; + } + // Brush & Eraser + else if (m_mode & (DrawsPixmaps | WashesPixmaps)) + { + kpColor colorToReplace; + + if (m_mode & WashesPixmaps) + colorToReplace = color (1 - m_mouseButton); + + // Sweeps a pixmap along a line (modified Bresenham's line algorithm, + // see MODIFIED comment below). + // + // Derived from the zSprite2 Graphics Engine + + const int x1 = (thisPoint - rect.topLeft ()).x (), + y1 = (thisPoint - rect.topLeft ()).y (), + x2 = (lastPoint - rect.topLeft ()).x (), + y2 = (lastPoint - rect.topLeft ()).y (); + + // Difference of x and y values + int dx = x2 - x1; + int dy = y2 - y1; + + // Absolute values of differences + int ix = kAbs (dx); + int iy = kAbs (dy); + + // Larger of the x and y differences + int inc = ix > iy ? ix : iy; + + // Plot location + int plotx = x1; + int ploty = y1; + + int x = 0; + int y = 0; + + if (m_mode & WashesPixmaps) + { + if (wash (&painter, &maskPainter, image, + colorToReplace, + rect, plotx + rect.left (), ploty + rect.top ())) + { + didSomething = true; + } + } + else + { + if (!transparent) + { + kpPixmapFX::paintPixmapAt (&pixmap, + hotPoint (plotx, ploty), + m_brushPixmap [m_mouseButton]); + } + else + { + kpPixmapFX::paintMaskTransparentWithBrush (&pixmap, + hotPoint (plotx, ploty), + kpPixmapFX::getNonNullMask (m_brushPixmap [m_mouseButton])); + } + + didSomething = true; + } + + for (int i = 0; i <= inc; i++) + { + // oldplotx is equally as valid but would look different + // (but nobody will notice which one it is) + int oldploty = ploty; + int plot = 0; + + x += ix; + y += iy; + + if (x > inc) + { + plot++; + x -= inc; + + if (dx < 0) + plotx--; + else + plotx++; + } + + if (y > inc) + { + plot++; + y -= inc; + + if (dy < 0) + ploty--; + else + ploty++; + } + + if (plot) + { + if (m_brushIsDiagonalLine && plot == 2) + { + // MODIFIED: every point is + // horizontally or vertically adjacent to another point (if there + // is more than 1 point, of course). This is in contrast to the + // ordinary line algorithm which can create diagonal adjacencies. + + if (m_mode & WashesPixmaps) + { + if (wash (&painter, &maskPainter, image, + colorToReplace, + rect, plotx + rect.left (), oldploty + rect.top ())) + { + didSomething = true; + } + } + else + { + if (!transparent) + { + kpPixmapFX::paintPixmapAt (&pixmap, + hotPoint (plotx, oldploty), + m_brushPixmap [m_mouseButton]); + } + else + { + kpPixmapFX::paintMaskTransparentWithBrush (&pixmap, + hotPoint (plotx, oldploty), + kpPixmapFX::getNonNullMask (m_brushPixmap [m_mouseButton])); + } + + didSomething = true; + } + } + + if (m_mode & WashesPixmaps) + { + if (wash (&painter, &maskPainter, image, + colorToReplace, + rect, plotx + rect.left (), ploty + rect.top ())) + { + didSomething = true; + } + } + else + { + if (!transparent) + { + kpPixmapFX::paintPixmapAt (&pixmap, + hotPoint (plotx, ploty), + m_brushPixmap [m_mouseButton]); + } + else + { + kpPixmapFX::paintMaskTransparentWithBrush (&pixmap, + hotPoint (plotx, ploty), + kpPixmapFX::getNonNullMask (m_brushPixmap [m_mouseButton])); + } + + didSomething = true; + } + } + } + + } + + if (painter.isActive ()) + painter.end (); + + if (maskPainter.isActive ()) + maskPainter.end (); + + #if DEBUG_KP_TOOL_PEN + if (m_mode & WashesPixmaps) + { + int ms = timer.restart (); + kdDebug () << "\ttried to wash: " << ms << "ms" + << " (" << (ms ? (rect.width () * rect.height () / ms) : -1234) + << " pixels/ms)" + << endl; + convAndWashTime += ms; + } + #endif + + + if (didSomething) + { + if (!maskBitmap.isNull ()) + pixmap.setMask (maskBitmap); + + // draw onto doc + document ()->setPixmapAt (pixmap, rect.topLeft ()); + + #if DEBUG_KP_TOOL_PEN + if (m_mode & WashesPixmaps) + { + int ms = timer.restart (); + kdDebug () << "\tset doc: " << ms << "ms" << endl; + convAndWashTime += ms; + } + #endif + + m_currentCommand->updateBoundingRect (rect); + + #if DEBUG_KP_TOOL_PEN + if (m_mode & WashesPixmaps) + { + int ms = timer.restart (); + kdDebug () << "\tupdate boundingRect: " << ms << "ms" << endl; + convAndWashTime += ms; + kdDebug () << "\tdone (" << (convAndWashTime ? (rect.width () * rect.height () / convAndWashTime) : -1234) + << " pixels/ms)" + << endl; + } + #endif + } + + #if DEBUG_KP_TOOL_PEN + if (m_mode & WashesPixmaps) + kdDebug () << endl; + #endif + } + + viewManager ()->restoreFastUpdates (); + setUserShapePoints (thisPoint); +} + +// virtual +void kpToolPen::cancelShape () +{ + m_currentCommand->finalize (); + m_currentCommand->cancel (); + + delete m_currentCommand; + m_currentCommand = 0; + + updateBrushCursor (false/*no recalc*/); + + setUserMessage (i18n ("Let go of all the mouse buttons.")); +} + +void kpToolPen::releasedAllButtons () +{ + setUserMessage (haventBegunDrawUserMessage ()); +} + +// virtual +void kpToolPen::endDraw (const QPoint &, const QRect &) +{ + m_currentCommand->finalize (); + mainWindow ()->commandHistory ()->addCommand (m_currentCommand, false /* don't exec */); + + // don't delete - it's up to the commandHistory + m_currentCommand = 0; + + updateBrushCursor (false/*no recalc*/); + + setUserMessage (haventBegunDrawUserMessage ()); +} + + +// TODO: maybe the base should be virtual? +kpColor kpToolPen::color (int which) +{ +#if DEBUG_KP_TOOL_PEN && 0 + kdDebug () << "kpToolPen::color (" << which << ")" << endl; +#endif + + // Pen & Brush + if ((m_mode & SwappedColors) == 0) + return kpTool::color (which); + // only the (Color) Eraser uses the opposite color + else + return kpTool::color (which ? 0 : 1); // don't trust !0 == 1 +} + +// virtual private slot +void kpToolPen::slotForegroundColorChanged (const kpColor &col) +{ +#if DEBUG_KP_TOOL_PEN + kdDebug () << "kpToolPen::slotForegroundColorChanged()" << endl; +#endif + if (col.isOpaque ()) + m_brushPixmap [(m_mode & SwappedColors) ? 1 : 0].fill (col.toQColor ()); + + updateBrushCursor (); +} + +// virtual private slot +void kpToolPen::slotBackgroundColorChanged (const kpColor &col) +{ +#if DEBUG_KP_TOOL_PEN + kdDebug () << "kpToolPen::slotBackgroundColorChanged()" << endl; +#endif + + if (col.isOpaque ()) + m_brushPixmap [(m_mode & SwappedColors) ? 0 : 1].fill (col.toQColor ()); + + updateBrushCursor (); +} + +// private slot +void kpToolPen::slotBrushChanged (const QPixmap &pixmap, bool isDiagonalLine) +{ +#if DEBUG_KP_TOOL_PEN + kdDebug () << "kpToolPen::slotBrushChanged()" << endl; +#endif + for (int i = 0; i < 2; i++) + { + m_brushPixmap [i] = pixmap; + if (color (i).isOpaque ()) + m_brushPixmap [i].fill (color (i).toQColor ()); + } + + m_brushIsDiagonalLine = isDiagonalLine; + + updateBrushCursor (); +} + +// private slot +void kpToolPen::slotEraserSizeChanged (int size) +{ +#if DEBUG_KP_TOOL_PEN + kdDebug () << "KpToolPen::slotEraserSizeChanged(size=" << size << ")" << endl; +#endif + + for (int i = 0; i < 2; i++) + { + // Note: No matter what, the eraser's brush pixmap is never given + // a mask. + // + // With a transparent color, since we don't fill anything, the + // resize by itself will leave us with garbage pixels. This + // doesn't matter because: + // + // 1. The hover cursor will ask kpToolWidgetEraserSize for a proper + // cursor pixmap. + // 2. We will draw using kpPixmapFX::paintMaskTransparentWithBrush() + // which only cares about the opaqueness. + m_brushPixmap [i].resize (size, size); + if (color (i).isOpaque ()) + m_brushPixmap [i].fill (color (i).toQColor ()); + } + + updateBrushCursor (); +} + +QPoint kpToolPen::hotPoint () const +{ + return hotPoint (m_currentPoint); +} + +QPoint kpToolPen::hotPoint (int x, int y) const +{ + return hotPoint (QPoint (x, y)); +} + +QPoint kpToolPen::hotPoint (const QPoint &point) const +{ + /* + * e.g. + * Width 5: + * 0 1 2 3 4 + * ^ + * | + * Center + */ + return point - + QPoint (m_brushPixmap [m_mouseButton].width () / 2, + m_brushPixmap [m_mouseButton].height () / 2); +} + +QRect kpToolPen::hotRect () const +{ + return hotRect (m_currentPoint); +} + +QRect kpToolPen::hotRect (int x, int y) const +{ + return hotRect (QPoint (x, y)); +} + +QRect kpToolPen::hotRect (const QPoint &point) const +{ + QPoint topLeft = hotPoint (point); + return QRect (topLeft.x (), + topLeft.y (), + m_brushPixmap [m_mouseButton].width (), + m_brushPixmap [m_mouseButton].height ()); +} + +// private +void kpToolPen::updateBrushCursor (bool recalc) +{ +#if DEBUG_KP_TOOL_PEN && 1 + kdDebug () << "kpToolPen::updateBrushCursor(recalc=" << recalc << ")" << endl; +#endif + + if (recalc) + { + if (m_mode & SquareBrushes) + m_cursorPixmap = m_toolWidgetEraserSize->cursorPixmap (color (0)); + else if (m_mode & DiverseBrushes) + m_cursorPixmap = m_brushPixmap [0]; + } + + hover (hasBegun () ? m_currentPoint : currentPoint ()); +} + + +/* + * kpToolPenCommand + */ + +kpToolPenCommand::kpToolPenCommand (const QString &name, kpMainWindow *mainWindow) + : kpNamedCommand (name, mainWindow), + m_pixmap (*document ()->pixmap ()) +{ +} + +kpToolPenCommand::~kpToolPenCommand () +{ +} + + +// public virtual [base kpCommand] +int kpToolPenCommand::size () const +{ + return kpPixmapFX::pixmapSize (m_pixmap); +} + + +// public virtual [base kpCommand] +void kpToolPenCommand::execute () +{ + swapOldAndNew (); +} + +// public virtual [base kpCommand] +void kpToolPenCommand::unexecute () +{ + swapOldAndNew (); +} + + +// private +void kpToolPenCommand::swapOldAndNew () +{ + if (m_boundingRect.isValid ()) + { + QPixmap oldPixmap = document ()->getPixmapAt (m_boundingRect); + + document ()->setPixmapAt (m_pixmap, m_boundingRect.topLeft ()); + + m_pixmap = oldPixmap; + } +} + +// public +void kpToolPenCommand::updateBoundingRect (const QPoint &point) +{ + updateBoundingRect (QRect (point, point)); +} + +// public +void kpToolPenCommand::updateBoundingRect (const QRect &rect) +{ +#if DEBUG_KP_TOOL_PEN & 0 + kdDebug () << "kpToolPenCommand::updateBoundingRect() existing=" + << m_boundingRect + << " plus=" + << rect + << endl; +#endif + m_boundingRect = m_boundingRect.unite (rect); +#if DEBUG_KP_TOOL_PEN & 0 + kdDebug () << "\tresult=" << m_boundingRect << endl; +#endif +} + +// public +void kpToolPenCommand::finalize () +{ + if (m_boundingRect.isValid ()) + { + // store only needed part of doc pixmap + m_pixmap = kpTool::neededPixmap (m_pixmap, m_boundingRect); + } + else + { + m_pixmap.resize (0, 0); + } +} + +// public +void kpToolPenCommand::cancel () +{ + if (m_boundingRect.isValid ()) + { + viewManager ()->setFastUpdates (); + document ()->setPixmapAt (m_pixmap, m_boundingRect.topLeft ()); + viewManager ()->restoreFastUpdates (); + } +} + +#include <kptoolpen.moc> |