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koffice/chalk/plugins/tools/defaulttools/kis_tool_text.cc

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/*
* Copyright (c) 2004 Bart Coppens <kde@bartcoppens.be>
*
* 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.
*/
#include <tqfont.h>
#include <tqrect.h>
#include <tqimage.h>
#include <tqlayout.h>
#include <tqwidget.h>
#include <tqstring.h>
#include <tqpixmap.h>
#include <tqpainter.h>
#include <tqpushbutton.h>
#include <tqfontmetrics.h>
#include <tqhbox.h>
#include <kaction.h>
#include <kinputdialog.h>
#include <klocale.h>
#include <kfontdialog.h>
#include <ksqueezedtextlabel.h>
#include <tqcolor.h>
#include "kis_point.h"
#include "kis_image.h"
#include "kis_layer.h"
#include "kis_group_layer.h"
#include "kis_paint_layer.h"
#include "kis_cursor.h"
#include "kis_tool_text.h"
#include "kis_paint_device.h"
#include "kis_canvas_subject.h"
#include "kis_button_press_event.h"
#include "kis_button_release_event.h"
#include "kis_color.h"
#include "kis_undo_adapter.h"
KisToolText::KisToolText()
: super(i18n("Text"))
, m_wasPressed( false )
, m_windowIsBeingShown( false )
{
setName("tool_text");
m_subject = 0;
setCursor(KisCursor::load("tool_text_cursor.png", 6, 6));
}
KisToolText::~KisToolText()
{
}
void KisToolText::update(KisCanvasSubject *subject)
{
m_subject = subject;
super::update(subject);
}
void KisToolText::buttonPress(KisButtonPressEvent *e)
{
if (m_subject && e->button() == Qt::LeftButton) {
m_wasPressed = true;
}
}
void KisToolText::buttonRelease(KisButtonReleaseEvent *e)
{
if ( m_windowIsBeingShown ) return;
if (m_subject && e->button() == Qt::LeftButton) {
if(!m_wasPressed) return;
m_wasPressed = false;
KisImageSP img = m_subject->currentImg();
m_windowIsBeingShown = true;
bool ok;
TQString text = KInputDialog::getText(i18n("Font Tool"), i18n("Enter text:"),
TQString(), &ok);
if (!ok) {
m_windowIsBeingShown = false;
return;
}
KisUndoAdapter *undoAdapter = img->undoAdapter();
if (undoAdapter) {
undoAdapter->beginMacro(i18n("Text"));
}
TQFontMetrics metrics(m_font);
TQRect boundingRect = TQT_TQRECT_OBJECT(metrics.boundingRect(text)).normalize();
int xB = - boundingRect.x();
int yB = - boundingRect.y();
if (boundingRect.x() < 0 || boundingRect.y() < 0)
boundingRect.moveBy(- boundingRect.x(), - boundingRect.y());
TQPixmap pixels(boundingRect.width(), boundingRect.height());
{
TQPainter paint(&pixels);
paint.fillRect(boundingRect, TQt::white);
paint.setFont(m_font);
paint.setBrush(TQBrush(TQt::black));
paint.drawText(xB, yB, text);
}
TQImage image = pixels.convertToImage();
TQ_INT32 height = boundingRect.height();
TQ_INT32 width = boundingRect.width();
KisPaintLayer *layer = new KisPaintLayer(img, '"' + text + '"', OPACITY_OPAQUE);
KisGroupLayerSP parent = img->rootLayer();
if (img->activeLayer())
parent = img->activeLayer()->parent();
img->addLayer(layer, parent, img->activeLayer());
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
TQRgb pixel = image.pixel(x, y);
// use the 'blackness' as alpha :)
TQ_UINT8 alpha = 255 - tqRed(pixel) * OPACITY_OPAQUE / 255;
TQColor c = m_subject->fgColor().toTQColor();
layer->paintDevice()->setPixel(x, y, c, alpha);
}
}
layer->setOpacity(m_opacity);
layer->setCompositeOp(m_compositeOp);
layer->setVisible(false);
TQ_INT32 x = TQMAX(0, static_cast<int>(e->x() - width/2));
TQ_INT32 y = TQMAX(0, static_cast<int>(e->y() - height/2));
layer->setX(x);
layer->setY(y);
layer->setVisible(true);
layer->setDirty();
if (undoAdapter) {
undoAdapter->endMacro();
}
m_windowIsBeingShown = false;
}
}
void KisToolText::setFont() {
KFontDialog::getFont( m_font, false/*, TQWidget* parent! */ );
m_lbFontName->setText(TQString(m_font.family() + ", %1").arg(m_font.pointSize()));
}
TQWidget* KisToolText::createOptionWidget(TQWidget* parent)
{
TQWidget *widget = super::createOptionWidget(parent);
m_lbFont = new TQLabel(i18n("Font: "), widget);
TQHBox *fontBox = new TQHBox(widget);
m_lbFontName = new KSqueezedTextLabel(TQString(m_font.family() + ", %1")
.arg(m_font.pointSize()), fontBox);
m_btnMoreFonts = new TQPushButton("...", fontBox);
connect(m_btnMoreFonts, TQT_SIGNAL(released()), this, TQT_SLOT(setFont()));
addOptionWidgetOption(fontBox, m_lbFont);
return widget;
}
void KisToolText::setup(KActionCollection *collection)
{
m_action = static_cast<KRadioAction *>(collection->action(name()));
if (m_action == 0) {
m_action = new KRadioAction(i18n("T&ext"),
"tool_text",
TQt::SHIFT+TQt::Key_T,
this,
TQT_SLOT(activate()),
collection,
name());
m_action->setExclusiveGroup("tools");
m_action->setToolTip(i18n("Text"));
m_ownAction = true;
}
}
#include "kis_tool_text.moc"