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kwin/clients/aurorae/themes/plastik/code/plastikbutton.cpp
Martin Gräßlin 73e0a6586c [aurorae] Use enum type for Decoration Buttons 
Defines the DecorationButton type in DecorationOptions (needs to be
re-defined due to QML limitations) and exports the buttons as a
QList<int> property (again QML limitations).

All QML files are switched from string to the new enum type.
2013-11-14 09:41:52 +01:00

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/********************************************************************
Copyright (C) 2012 Martin Gräßlin <mgraesslin@kde.org>
Copyright (C) 2003-2005 Sandro Giessl <sandro@giessl.com>
based on the window decoration "Web":
Copyright (C) 2001 Rik Hemsley (rikkus) <rik@kde.org>
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, see <http://www.gnu.org/licenses/>.
*********************************************************************/
#include "plastikbutton.h"
#include <kdecoration.h>
#include <KDE/KColorScheme>
#include <QPainter>
namespace KWin
{
PlastikButtonProvider::PlastikButtonProvider()
: QQuickImageProvider(Pixmap)
{
}
QPixmap PlastikButtonProvider::requestPixmap(const QString &id, QSize *size, const QSize &requestedSize)
{
int origSize = requestedSize.isValid() ? qMin(requestedSize.width(), requestedSize.height()) : 10;
if (size) {
*size = QSize(origSize, origSize);
}
QStringList idParts = id.split(QStringLiteral("/"));
if (idParts.isEmpty()) {
// incorrect id
return QQuickImageProvider::requestPixmap(id, size, requestedSize);
}
bool active = false;
bool toggled = false;
bool shadow = false;
if (idParts.length() > 1 && idParts.at(1) == QStringLiteral("true")) {
active = true;
}
if (idParts.length() > 2 && idParts.at(2) == QStringLiteral("true")) {
toggled = true;
}
if (idParts.length() > 3 && idParts.at(3) == QStringLiteral("true")) {
shadow = true;
}
ButtonIcon button;
switch (static_cast<KDecorationDefines::DecorationButton>(idParts[0].toInt())) {
case KDecorationDefines::DecorationButtonClose:
button = CloseIcon;
break;
case KDecorationDefines::DecorationButtonMaximizeRestore:
if (toggled) {
button = MaxRestoreIcon;
} else {
button = MaxIcon;
}
break;
case KDecorationDefines::DecorationButtonMinimize:
button = MinIcon;
break;
case KDecorationDefines::DecorationButtonQuickHelp:
button = HelpIcon;
break;
case KDecorationDefines::DecorationButtonOnAllDesktops:
if (toggled) {
button = NotOnAllDesktopsIcon;
} else {
button = OnAllDesktopsIcon;
}
break;
case KDecorationDefines::DecorationButtonKeepAbove:
if (toggled) {
button = NoKeepAboveIcon;
} else {
button = KeepAboveIcon;
}
break;
case KDecorationDefines::DecorationButtonKeepBelow:
if (toggled) {
button = NoKeepBelowIcon;
} else {
button = KeepBelowIcon;
}
break;
case KDecorationDefines::DecorationButtonShade:
if (toggled) {
button = UnShadeIcon;
} else {
button = ShadeIcon;
}
break;
case KDecorationDefines::DecorationButtonApplicationMenu:
button = AppMenuIcon;
break;
default:
// not recognized icon
return QQuickImageProvider::requestPixmap(id, size, requestedSize);
}
return icon(button, origSize, active, shadow);
}
QPixmap PlastikButtonProvider::icon(ButtonIcon icon, int size, bool active, bool shadow)
{
if (size%2 == 0)
--size;
QPixmap image(size, size);
image.fill(Qt::transparent);
QPainter p(&image);
const QColor color = KDecoration::options()->color(KDecoration::ColorFont, active);
if (shadow) {
p.setPen(KColorScheme::shade(color, KColorScheme::ShadowShade));
} else {
p.setPen(color);
}
const QRect r = image.rect();
// line widths
int lwTitleBar = 1;
if (r.width() > 16) {
lwTitleBar = 4;
} else if (r.width() > 4) {
lwTitleBar = 2;
}
int lwArrow = 1;
if (r.width() > 16) {
lwArrow = 4;
} else if (r.width() > 7) {
lwArrow = 2;
}
switch(icon) {
case CloseIcon:
{
int lineWidth = 1;
if (r.width() > 16) {
lineWidth = 3;
} else if (r.width() > 4) {
lineWidth = 2;
}
drawObject(p, DiagonalLine, r.x(), r.y(), r.width(), lineWidth);
drawObject(p, CrossDiagonalLine, r.x(), r.bottom(), r.width(), lineWidth);
break;
}
case MaxIcon:
{
int lineWidth2 = 1; // frame
if (r.width() > 16) {
lineWidth2 = 2;
} else if (r.width() > 4) {
lineWidth2 = 1;
}
drawObject(p, HorizontalLine, r.x(), r.top(), r.width(), lwTitleBar);
drawObject(p, HorizontalLine, r.x(), r.bottom()-(lineWidth2-1), r.width(), lineWidth2);
drawObject(p, VerticalLine, r.x(), r.top(), r.height(), lineWidth2);
drawObject(p, VerticalLine, r.right()-(lineWidth2-1), r.top(), r.height(), lineWidth2);
break;
}
case MaxRestoreIcon:
{
int lineWidth2 = 1; // frame
if (r.width() > 16) {
lineWidth2 = 2;
} else if (r.width() > 4) {
lineWidth2 = 1;
}
int margin1, margin2;
margin1 = margin2 = lineWidth2*2;
if (r.width() < 8)
margin1 = 1;
// background window
drawObject(p, HorizontalLine, r.x()+margin1, r.top(), r.width()-margin1, lineWidth2);
drawObject(p, HorizontalLine, r.right()-margin2, r.bottom()-(lineWidth2-1)-margin1, margin2, lineWidth2);
drawObject(p, VerticalLine, r.x()+margin1, r.top(), margin2, lineWidth2);
drawObject(p, VerticalLine, r.right()-(lineWidth2-1), r.top(), r.height()-margin1, lineWidth2);
// foreground window
drawObject(p, HorizontalLine, r.x(), r.top()+margin2, r.width()-margin2, lwTitleBar);
drawObject(p, HorizontalLine, r.x(), r.bottom()-(lineWidth2-1), r.width()-margin2, lineWidth2);
drawObject(p, VerticalLine, r.x(), r.top()+margin2, r.height(), lineWidth2);
drawObject(p, VerticalLine, r.right()-(lineWidth2-1)-margin2, r.top()+margin2, r.height(), lineWidth2);
break;
}
case MinIcon:
{
drawObject(p, HorizontalLine, r.x(), r.bottom()-(lwTitleBar-1), r.width(), lwTitleBar);
break;
}
case HelpIcon:
{
int center = r.x()+r.width()/2 -1;
int side = r.width()/4;
// paint a question mark... code is quite messy, to be cleaned up later...! :o
if (r.width() > 16) {
int lineWidth = 3;
// top bar
drawObject(p, HorizontalLine, center-side+3, r.y(), 2*side-3-1, lineWidth);
// top bar rounding
drawObject(p, CrossDiagonalLine, center-side-1, r.y()+5, 6, lineWidth);
drawObject(p, DiagonalLine, center+side-3, r.y(), 5, lineWidth);
// right bar
drawObject(p, VerticalLine, center+side+2-lineWidth, r.y()+3, r.height()-(2*lineWidth+side+2+1), lineWidth);
// bottom bar
drawObject(p, CrossDiagonalLine, center, r.bottom()-2*lineWidth, side+2, lineWidth);
drawObject(p, HorizontalLine, center, r.bottom()-3*lineWidth+2, lineWidth, lineWidth);
// the dot
drawObject(p, HorizontalLine, center, r.bottom()-(lineWidth-1), lineWidth, lineWidth);
} else if (r.width() > 8) {
int lineWidth = 2;
// top bar
drawObject(p, HorizontalLine, center-(side-1), r.y(), 2*side-1, lineWidth);
// top bar rounding
if (r.width() > 9) {
drawObject(p, CrossDiagonalLine, center-side-1, r.y()+3, 3, lineWidth);
} else {
drawObject(p, CrossDiagonalLine, center-side-1, r.y()+2, 3, lineWidth);
}
drawObject(p, DiagonalLine, center+side-1, r.y(), 3, lineWidth);
// right bar
drawObject(p, VerticalLine, center+side+2-lineWidth, r.y()+2, r.height()-(2*lineWidth+side+1), lineWidth);
// bottom bar
drawObject(p, CrossDiagonalLine, center, r.bottom()-2*lineWidth+1, side+2, lineWidth);
// the dot
drawObject(p, HorizontalLine, center, r.bottom()-(lineWidth-1), lineWidth, lineWidth);
} else {
int lineWidth = 1;
// top bar
drawObject(p, HorizontalLine, center-(side-1), r.y(), 2*side, lineWidth);
// top bar rounding
drawObject(p, CrossDiagonalLine, center-side-1, r.y()+1, 2, lineWidth);
// right bar
drawObject(p, VerticalLine, center+side+1, r.y(), r.height()-(side+2+1), lineWidth);
// bottom bar
drawObject(p, CrossDiagonalLine, center, r.bottom()-2, side+2, lineWidth);
// the dot
drawObject(p, HorizontalLine, center, r.bottom(), 1, 1);
}
break;
}
case NotOnAllDesktopsIcon:
{
int lwMark = r.width()-lwTitleBar*2-2;
if (lwMark < 1)
lwMark = 3;
drawObject(p, HorizontalLine, r.x()+(r.width()-lwMark)/2, r.y()+(r.height()-lwMark)/2, lwMark, lwMark);
// Fall through to OnAllDesktopsIcon intended!
}
case OnAllDesktopsIcon:
{
// horizontal bars
drawObject(p, HorizontalLine, r.x()+lwTitleBar, r.y(), r.width()-2*lwTitleBar, lwTitleBar);
drawObject(p, HorizontalLine, r.x()+lwTitleBar, r.bottom()-(lwTitleBar-1), r.width()-2*lwTitleBar, lwTitleBar);
// vertical bars
drawObject(p, VerticalLine, r.x(), r.y()+lwTitleBar, r.height()-2*lwTitleBar, lwTitleBar);
drawObject(p, VerticalLine, r.right()-(lwTitleBar-1), r.y()+lwTitleBar, r.height()-2*lwTitleBar, lwTitleBar);
break;
}
case NoKeepAboveIcon:
{
int center = r.x()+r.width()/2;
// arrow
drawObject(p, CrossDiagonalLine, r.x(), center+2*lwArrow, center-r.x(), lwArrow);
drawObject(p, DiagonalLine, r.x()+center, r.y()+1+2*lwArrow, center-r.x(), lwArrow);
if (lwArrow>1)
drawObject(p, HorizontalLine, center-(lwArrow-2), r.y()+2*lwArrow, (lwArrow-2)*2, lwArrow);
// Fall through to KeepAboveIcon intended!
}
case KeepAboveIcon:
{
int center = r.x()+r.width()/2;
// arrow
drawObject(p, CrossDiagonalLine, r.x(), center, center-r.x(), lwArrow);
drawObject(p, DiagonalLine, r.x()+center, r.y()+1, center-r.x(), lwArrow);
if (lwArrow>1)
drawObject(p, HorizontalLine, center-(lwArrow-2), r.y(), (lwArrow-2)*2, lwArrow);
break;
}
case NoKeepBelowIcon:
{
int center = r.x()+r.width()/2;
// arrow
drawObject(p, DiagonalLine, r.x(), center-2*lwArrow, center-r.x(), lwArrow);
drawObject(p, CrossDiagonalLine, r.x()+center, r.bottom()-1-2*lwArrow, center-r.x(), lwArrow);
if (lwArrow>1)
drawObject(p, HorizontalLine, center-(lwArrow-2), r.bottom()-(lwArrow-1)-2*lwArrow, (lwArrow-2)*2, lwArrow);
// Fall through to KeepBelowIcon intended!
}
case KeepBelowIcon:
{
int center = r.x()+r.width()/2;
// arrow
drawObject(p, DiagonalLine, r.x(), center, center-r.x(), lwArrow);
drawObject(p, CrossDiagonalLine, r.x()+center, r.bottom()-1, center-r.x(), lwArrow);
if (lwArrow>1)
drawObject(p, HorizontalLine, center-(lwArrow-2), r.bottom()-(lwArrow-1), (lwArrow-2)*2, lwArrow);
break;
}
case ShadeIcon:
{
drawObject(p, HorizontalLine, r.x(), r.y(), r.width(), lwTitleBar);
break;
}
case UnShadeIcon:
{
int lw1 = 1;
int lw2 = 1;
if (r.width() > 16) {
lw1 = 4;
lw2 = 2;
} else if (r.width() > 7) {
lw1 = 2;
lw2 = 1;
}
int h = qMax( (r.width()/2), (lw1+2*lw2) );
// horizontal bars
drawObject(p, HorizontalLine, r.x(), r.y(), r.width(), lw1);
drawObject(p, HorizontalLine, r.x(), r.x()+h-(lw2-1), r.width(), lw2);
// vertical bars
drawObject(p, VerticalLine, r.x(), r.y(), h, lw2);
drawObject(p, VerticalLine, r.right()-(lw2-1), r.y(), h, lw2);
break;
}
case AppMenuIcon:
{
drawObject(p, HorizontalLine, r.x(), r.top()+(lwTitleBar-1), r.width(), lwTitleBar);
drawObject(p, HorizontalLine, r.x(), r.center().y(), r.width(), lwTitleBar);
drawObject(p, HorizontalLine, r.x(), r.bottom()-(lwTitleBar-1), r.width(), lwTitleBar);
break;
}
default:
break;
}
p.end();
return image;
}
void PlastikButtonProvider::drawObject(QPainter &p, Object object, int x, int y, int length, int lineWidth)
{
switch(object) {
case DiagonalLine:
if (lineWidth <= 1) {
for (int i = 0; i < length; ++i) {
p.drawPoint(x+i,y+i);
}
} else if (lineWidth <= 2) {
for (int i = 0; i < length; ++i) {
p.drawPoint(x+i,y+i);
}
for (int i = 0; i < (length-1); ++i) {
p.drawPoint(x+1+i,y+i);
p.drawPoint(x+i,y+1+i);
}
} else {
for (int i = 1; i < (length-1); ++i) {
p.drawPoint(x+i,y+i);
}
for (int i = 0; i < (length-1); ++i) {
p.drawPoint(x+1+i,y+i);
p.drawPoint(x+i,y+1+i);
}
for (int i = 0; i < (length-2); ++i) {
p.drawPoint(x+2+i,y+i);
p.drawPoint(x+i,y+2+i);
}
}
break;
case CrossDiagonalLine:
if (lineWidth <= 1) {
for (int i = 0; i < length; ++i) {
p.drawPoint(x+i,y-i);
}
} else if (lineWidth <= 2) {
for (int i = 0; i < length; ++i) {
p.drawPoint(x+i,y-i);
}
for (int i = 0; i < (length-1); ++i) {
p.drawPoint(x+1+i,y-i);
p.drawPoint(x+i,y-1-i);
}
} else {
for (int i = 1; i < (length-1); ++i) {
p.drawPoint(x+i,y-i);
}
for (int i = 0; i < (length-1); ++i) {
p.drawPoint(x+1+i,y-i);
p.drawPoint(x+i,y-1-i);
}
for (int i = 0; i < (length-2); ++i) {
p.drawPoint(x+2+i,y-i);
p.drawPoint(x+i,y-2-i);
}
}
break;
case HorizontalLine:
for (int i = 0; i < lineWidth; ++i) {
p.drawLine(x,y+i, x+length-1, y+i);
}
break;
case VerticalLine:
for (int i = 0; i < lineWidth; ++i) {
p.drawLine(x+i,y, x+i, y+length-1);
}
break;
default:
break;
}
}
} // namespace
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