GuiWidget *findNextWidgetToFocus(WalkDirection dir)
{
PopupWidget *parentPopup = self().findParentPopup();
Rectanglei const viewRect = self().root().viewRule().recti();
bool escaped = false;
auto *widget = self().walkInOrder(dir, [this, &viewRect, parentPopup, &escaped] (Widget &widget)
{
if (parentPopup && !widget.hasAncestor(*parentPopup))
{
// Cannot get out of the popup.
escaped = true;
return LoopAbort;
}
if (widget.canBeFocused() && widget.is<GuiWidget>())
{
// The widget's center must be in view.
if (viewRect.contains(widget.as<GuiWidget>().rule().recti().middle()))
{
// This is good.
return LoopAbort;
}
}
return LoopContinue;
});
if (widget && !escaped)
{
return widget->asPtr<GuiWidget>();
}
return nullptr;
}
/**
* Test if a clipped widget is contained within its ancestors' clip rectangles.
*/
bool isClipCulled() const
{
bool wasClipped = false;
Rectanglei visibleArea = self().root().viewRule().recti();
for (Widget const *w = self().parentWidget(); w; w = w->parent())
{
if (!w->is<GuiWidget>()) continue;
// Does this ancestor use child clipping?
if (w->behavior().testFlag(ChildVisibilityClipping))
{
wasClipped = true;
visibleArea &= w->as<GuiWidget>().rule().recti();
}
}
if (!wasClipped) return false;
if (self().isClipped())
{
int const CULL_SAFETY_WIDTH = 50; // avoid pop-in when scrolling
// Clipped widgets are guaranteed to be within their rectangle.
return !visibleArea.overlaps(self().rule().recti().expanded(
GuiWidget::toDevicePixels(CULL_SAFETY_WIDTH)));
}
// Otherwise widgets may draw anywhere in the view.
return visibleArea.isNull();
}
static void drawRegion(memvolume_t &volume, Rectanglei const &rect, size_t start,
size_t size, float const color[4])
{
DENG2_ASSERT(start + size <= volume.size);
int const bytesPerRow = (volume.size - sizeof(memzone_t)) / rect.height();
float const toPixelScale = (float)rect.width() / (float)bytesPerRow;
size_t const edge = rect.topLeft.x + rect.width();
int x = (start % bytesPerRow) * toPixelScale + rect.topLeft.x;
int y = start / bytesPerRow + rect.topLeft.y;
int pixels = de::max<dint>(1, std::ceil(size * toPixelScale));
while(pixels > 0)
{
int const availPixels = edge - x;
int const usedPixels = de::min(availPixels, pixels);
glColor4fv(color);
glVertex2i(x, y);
glVertex2i(x + usedPixels, y);
pixels -= usedPixels;
// Move to the next row.
y++;
x = rect.topLeft.x;
}
}
bool WidgetList::Update(const Point2i& mousePosition,
const Point2i& lastMousePosition)
{
Rectanglei clip;
Rectanglei wlr = GetClip(clip);
if (!wlr.GetSizeX() || !wlr.GetSizeY())
return false;
// Redraw the background
bool updated = false;
if (need_redrawing)
RedrawBackground(wlr);
for (std::list<Widget*>::const_iterator w=widget_list.begin();
w != widget_list.end();
w++)
{
Rectanglei r((*w)->GetPosition(), (*w)->GetSize());
r.Clip(wlr);
if (r.GetSizeX() && r.GetSizeY()) {
SwapWindowClip(r);
updated |= (*w)->Update(mousePosition, lastMousePosition);
SwapWindowClip(r);
}
}
if (updated)
RedrawForeground();
// Restore initial clip rectangle
UnsetClip(clip);
need_redrawing = false;
return updated;
}
void LineEditWidget::draw()
{
Rectanglei pos = rule().recti();
// Temporary buffer for drawing.
TextCanvas buf(pos.size());
TextCanvas::Char::Attribs attr =
(hasFocus()? TextCanvas::Char::Reverse : TextCanvas::Char::DefaultAttributes);
buf.clear(TextCanvas::Char(' ', attr));
buf.drawText(Vector2i(0, 0), prompt(), attr | TextCanvas::Char::Bold);
// Underline the suggestion for completion.
if(isSuggestingCompletion())
{
buf.setRichFormatRange(TextCanvas::Char::Underline, completionRange());
}
// Echo mode determines what we actually draw.
String txt = text();
if(echoMode() == PasswordEchoMode)
{
txt = String(txt.size(), '*');
}
buf.drawWrappedText(Vector2i(prompt().size(), 0), txt, lineWraps(), attr);
targetCanvas().draw(buf, pos.topLeft);
}
QImage QtNativeFont::nativeFontRasterize(String const &text,
Vector4ub const &foreground,
Vector4ub const &background) const
{
#ifdef LIBGUI_ACCURATE_TEXT_BOUNDS
Rectanglei const bounds = measure(text);
#else
Rectanglei const bounds(Vector2i(0, -d->metrics->ascent()),
Vector2i(d->metrics->width(text),
d->metrics->descent()));
#endif
QColor const fgColor(foreground.x, foreground.y, foreground.z, foreground.w);
QColor const bgColor(background.x, background.y, background.z, background.w);
QImage img(QSize(bounds.width() + 1, bounds.height() + 1),
QImage::Format_ARGB32);
img.fill(bgColor.rgba());
QPainter painter(&img);
painter.setCompositionMode(QPainter::CompositionMode_Source);
painter.setFont(d->font);
painter.setPen(fgColor);
painter.setBrush(bgColor);
painter.drawText(-bounds.left(), -bounds.top(), text);
return img;
}
void LabelWidget::draw()
{
Rectanglei pos = rule().recti();
TextCanvas buf(pos.size());
buf.clear(d->background);
// Use the wrapped lines to determine width and height.
DENG2_ASSERT(!d->wraps.isEmpty());
Vector2i labelSize(d->wraps.width(), d->wraps.height());
// Determine position of the label based on alignment.
Vector2i labelPos;
if(d->align.testFlag(AlignRight))
{
labelPos.x = buf.width() - labelSize.x;
}
else if(!d->align.testFlag(AlignLeft))
{
labelPos.x = buf.width()/2 - labelSize.x/2;
}
if(d->align.testFlag(AlignBottom))
{
labelPos.y = buf.height() - labelSize.y;
}
else if(!d->align.testFlag(AlignTop))
{
labelPos.y = buf.height()/2 - labelSize.y/2;
}
buf.drawWrappedText(labelPos, d->label, d->wraps, d->attribs, d->align);
targetCanvas().draw(buf, pos.topLeft);
}
void WidgetList::Draw(const Point2i &mousePosition)
{
Rectanglei clip;
Rectanglei wlr = GetClip(clip);
if (!wlr.GetSizeX() || !wlr.GetSizeY())
return;
for (std::list<Widget*>::const_iterator w=widget_list.begin();
w != widget_list.end();
w++)
{
Rectanglei r((*w)->GetPosition(), (*w)->GetSize());
r.Clip(wlr);
if (r.GetSizeX() && r.GetSizeY()) {
Rectanglei wr = r;
SwapWindowClip(r);
(*w)->RedrawBackground(wr);
(*w)->Draw(mousePosition);
(*w)->RedrawForeground();
SwapWindowClip(r);
}
}
// Restore initial clip rectangle
UnsetClip(clip);
}
void BoundTexture2d::update_data(const Rectanglei& update_region,
Texture::DataPixelFormat data_format, Texture::PixelType pixel_type, const void* data)
{
glTexSubImage2D(GL_TEXTURE_2D, 0, update_region.left(), update_region.bottom(),
update_region.width(), update_region.height(), static_cast<GLenum>(data_format),
static_cast<GLenum>(pixel_type), data);
CHECK_GL_ERROR(glTexSubImage2D);
}
static void drawChar(uchar ch, float x, float y, AbstractFont *font,
int alignFlags, short /*textFlags*/)
{
if(alignFlags & ALIGN_RIGHT)
{
x -= font->glyphPosCoords(ch).width();
}
else if(!(alignFlags & ALIGN_LEFT))
{
x -= font->glyphPosCoords(ch).width() / 2;
}
int const ascent = font->ascent();
int const lineHeight = ascent? ascent : font->glyphPosCoords(ch).height();
if(alignFlags & ALIGN_BOTTOM)
{
y -= topToAscent(font) + lineHeight;
}
else if(!(alignFlags & ALIGN_TOP))
{
y -= (topToAscent(font) + lineHeight) / 2;
}
LIBGUI_GL.glMatrixMode(GL_MODELVIEW);
LIBGUI_GL.glTranslatef(x, y, 0);
Rectanglei geometry = font->glyphPosCoords(ch);
if(BitmapFont *bmapFont = font->maybeAs<BitmapFont>())
{
/// @todo Filtering should be determined at a higher level.
/// @todo We should not need to re-bind this texture here.
GL_BindTextureUnmanaged(bmapFont->textureGLName(), gl::ClampToEdge,
gl::ClampToEdge, filterUI? gl::Linear : gl::Nearest);
geometry = geometry.expanded(bmapFont->textureMargin().toVector2i());
}
else if(CompositeBitmapFont *compFont = font->maybeAs<CompositeBitmapFont>())
{
GL_BindTexture(compFont->glyphTexture(ch));
geometry = geometry.expanded(compFont->glyphTextureBorder(ch));
}
Vector2i coords[4] = { font->glyphTexCoords(ch).topLeft,
font->glyphTexCoords(ch).topRight(),
font->glyphTexCoords(ch).bottomRight,
font->glyphTexCoords(ch).bottomLeft() };
GL_DrawRectWithCoords(geometry, coords);
if(font->is<CompositeBitmapFont>())
{
GL_SetNoTexture();
}
LIBGUI_GL.glMatrixMode(GL_MODELVIEW);
LIBGUI_GL.glTranslatef(-x, -y, 0);
}
void TextBox::Draw(const Point2i & mousePosition)
{
Rectanglei clip;
Rectanglei wlr = GetClip(clip);
if (!wlr.GetSizeX() || !wlr.GetSizeY())
return;
Label::Draw(mousePosition);
DrawCursor(position, cursor_pos);
// Restore initial clip rectangle
UnsetClip(clip);
}
Rectanglei QtNativeFont::nativeFontMeasure(String const &text) const
{
Rectanglei rect = Rectanglei::fromQRect(d->metrics->boundingRect(text));
if(rect.height() == 0)
{
// It seems measuring the bounds of a Tab character produces
// strange results (position 100000?).
rect = Rectanglei(0, 0, rect.width(), 0);
}
return rect;
}
int SpriteAni::addFrame(int image_id, const Rectanglei &rect)
{
AniFrame *ani_frame = new AniFrame;
ani_frame->id = (uint16)frame_seq.size();
ani_frame->image = image_id;
ani_frame->rect.x = rect.getLeft();
ani_frame->rect.y = rect.getTop();
ani_frame->rect.w = rect.getWidth();
ani_frame->rect.h = rect.getHeight();
frame_seq.push_back(ani_frame);
return ani_frame->id;
}
void Menu::RedrawBackground(const Rectanglei & rect) const
{
if (!background) {
return;
}
background->Blit(GetMainWindow(), rect, rect.GetPosition());
}
/*
bool VirtualKeyboardParser::parsePolygon(Polygon &poly, const String& coords) {
StringTokenizer tok(coords, ", ");
for (String st = tok.nextToken(); !st.empty(); st = tok.nextToken()) {
int x, y;
if (sscanf(st.c_str(), "%d", &x) != 1)
return parserError("Invalid coords for polygon area");
st = tok.nextToken();
if (sscanf(st.c_str(), "%d", &y) != 1)
return parserError("Invalid coords for polygon area");
poly.addPoint(x, y);
}
if (poly.getPointCount() < 3)
return parserError("Invalid coords for polygon area");
return true;
}
*/
bool VirtualKeyboardParser::parseRectAsPolygon(Polygon &poly, const string& coords)
{
Rectanglei rect;
if (!parseRect(rect, coords))
return false;
poly.addPoint(rect.GetLeft(), rect.GetTop());
poly.addPoint(rect.GetRight(), rect.GetTop());
poly.addPoint(rect.GetRight(), rect.GetBottom());
poly.addPoint(rect.GetLeft(), rect.GetBottom());
return true;
}
void RectangleTest::access() {
Rectanglei rect({34, 23}, {47, 30});
constexpr Rectanglei crect({34, 23}, {47, 30});
CORRADE_COMPARE(rect.bottomLeft(), Vector2i(34, 23));
CORRADE_COMPARE(rect.topRight(), Vector2i(47, 30));
CORRADE_COMPARE(rect.bottom(), 23);
CORRADE_COMPARE(rect.top(), 30);
CORRADE_COMPARE(rect.left(), 34);
CORRADE_COMPARE(rect.right(), 47);
CORRADE_COMPARE(rect.bottomLeft(), Vector2i(34, 23));
CORRADE_COMPARE(rect.topRight(), Vector2i(47, 30));
constexpr Int bottom = crect.bottom();
constexpr Int top = crect.top();
constexpr Int left = crect.left();
constexpr Int right = crect.right();
CORRADE_COMPARE(bottom, 23);
CORRADE_COMPARE(top, 30);
CORRADE_COMPARE(left, 34);
CORRADE_COMPARE(right, 47);
constexpr Vector2i bottomLeft = crect.bottomLeft();
constexpr Vector2i topRight = crect.topRight();
CORRADE_COMPARE(bottomLeft, Vector2i(34, 23));
CORRADE_COMPARE(topRight, Vector2i(47, 30));
CORRADE_COMPARE(rect.topLeft(), Vector2i(34, 30));
CORRADE_COMPARE(rect.bottomRight(), Vector2i(47, 23));
}
void draw()
{
Rectanglei pos;
if(self.hasChangedPlace(pos) || !bgBuf->isReady())
{
// Update the background quad.
VertexBuf::Builder bgVerts;
self.glMakeGeometry(bgVerts);
bgBuf->setVertices(gl::TriangleStrip, bgVerts, gl::Static);
}
// Draw the background.
background.draw();
Rectanglei vp = self.viewport();
if(vp.height() > 0)
{
GLState &st = GLState::push();
// Leave room for the indicator in the scissor.
st.setScissor(vp.adjusted(Vector2i(), Vector2i(self.rightMargin(), 0)));
// First draw the shadow of the text.
uMvpMatrix = projMatrix * Matrix4f::translate(
Vector2f(vp.topLeft + Vector2i(0, contentOffsetForDrawing)));
uShadowColor = Vector4f(0, 0, 0, 1);
contents.draw();
// Draw the text itself.
uMvpMatrix = projMatrix * Matrix4f::translate(
Vector2f(vp.topLeft + Vector2i(0, contentOffsetForDrawing - 1)));
uShadowColor = Vector4f(1, 1, 1, 1);
contents.draw();
GLState::pop();
}
// We don't need to keep all entries ready for drawing immediately.
releaseExcessComposedEntries();
}
inline bool PhysicalObj::Intersect(const Rectanglei & rect) const
{
int dim = m_width - m_test_right - m_test_left;
dim = dim ? dim : 1;
int obj_test1 = GetX() + m_test_left;
int obj_test2 = obj_test1 + dim - 1;
int test1 = rect.GetPositionX();
int test2 = test1 + rect.GetSizeX() - 1;
if (obj_test2 >= test1 && obj_test1 <= test2) {
dim = m_height - m_test_bottom - m_test_top;
dim = dim ? dim : 1;
obj_test1 = GetY() + m_test_top;
obj_test2 = obj_test1 + dim - 1;
test1 = rect.GetPositionY();
test2 = test1 + rect.GetSizeY() - 1;
if (obj_test2 >= test1 && obj_test1 <= test2)
return true;
}
return false;
}
duint CanvasWindow::grabAsTexture(Rectanglei const &area, GrabMode mode) const
{
QSize size;
if(mode == GrabHalfSized)
{
size = QSize(area.width()/2, area.height()/2);
}
return d->canvas->grabAsTexture(
QRect(area.left(), area.top(), area.width(), area.height()), size);
}
void glSubImage(int level, Rectanglei const &rect, Image const &image,
CubeFace face = PositiveX)
{
auto const &glFormat = image.glFormat();
LIBGUI_GL.glPixelStorei(GL_UNPACK_ALIGNMENT, GLint(glFormat.rowAlignment));
LIBGUI_GL.glPixelStorei(GL_UNPACK_ROW_LENGTH, GLint(image.width()));
int const bytesPerPixel = image.depth() / 8;
LIBGUI_GL.glTexSubImage2D(isCube()? glFace(face) : texTarget,
level, rect.left(), rect.top(), rect.width(), rect.height(),
glFormat.format, glFormat.type,
static_cast<dbyte const *>(image.bits()) +
bytesPerPixel * rect.left() + image.stride() * rect.top());
LIBGUI_GL.glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
LIBGUI_ASSERT_GL_OK();
}
/**
* Submits the image to the backing store, or commits it if no backing
* store is available.
*
* @param image Image.
* @param rect Rectangle for the image determined by an IAllocator.
*/
void submitImage(Image const &image, Rectanglei const &rect)
{
Rectanglei const noBorders = rect.shrunk(border);
Rectanglei const withMargin = rect.expanded(margin);
if (hasBacking())
{
// The margin is cleared to transparent black.
backing.fill(withMargin, Image::Color(0, 0, 0, 0));
if (border > 0)
{
if (flags.testFlag(WrapBordersInBackingStore))
{
// Wrap using the source image (left, right, top, bottom edges).
backing.drawPartial(image, Rectanglei(0, 0, border, image.height()),
rect.topRight() + Vector2i(-border, border));
backing.drawPartial(image, Rectanglei(image.width() - border, 0,
border, image.height()),
rect.topLeft + Vector2i(0, border));
backing.drawPartial(image, Rectanglei(0, 0, image.width(), border),
rect.bottomLeft() + Vector2i(border, -border));
backing.drawPartial(image, Rectanglei(0, image.height() - border,
image.width(), border),
rect.topLeft + Vector2i(border, 0));
}
}
backing.draw(image, noBorders.topLeft);
//backing.toQImage().save(QString("backing-%1.png").arg(uint64_t(this)));
markAsChanged(rect);
}
else
{
// No backing, must commit immediately.
if (border > 0)
{
// Expand with borders (repeat edges).
QImage const srcImg = image.toQImage();
int const sw = srcImg.width();
int const sh = srcImg.height();
QImage bordered(QSize(rect.width(), rect.height()), srcImg.format());
int const w = bordered.width();
int const h = bordered.height();
QPainter painter(&bordered);
painter.setCompositionMode(QPainter::CompositionMode_Source);
painter.fillRect(bordered.rect(), QColor(0, 0, 0, 0));
/// @todo This really only works for a border of 1 pixels. Should
/// repeat the same outmost edge pixels for every border. -jk
painter.drawImage(border, border, srcImg);
painter.drawImage(border, 0, srcImg, 0, 0, sw, 1); // top
painter.drawImage(border, h - 1, srcImg, 0, sh - 1, sw, 1); // bottom
painter.drawImage(0, border, srcImg, 0, 0, 1, sh); // left
painter.drawImage(w - 1, border, srcImg, sw - 1, 0, 1, sh); // right
// Corners.
painter.drawImage(0, 0, srcImg, 0, 0, 1, 1);
painter.drawImage(w - 1, 0, srcImg, sw - 1, 0, 1, 1);
painter.drawImage(0, h - 1, srcImg, 0, sh - 1, 1, 1);
painter.drawImage(w - 1, h - 1, srcImg, sw - 1, sh - 1, 1, 1);
self().commit(bordered, rect.topLeft);
}
else
{
self().commit(image, noBorders.topLeft);
}
}
}
namespace Magnum { namespace Math { namespace Geometry { namespace Test {
class RectangleTest: public Corrade::TestSuite::Tester {
public:
RectangleTest();
void construct();
void constructDefault();
void constructFromSize();
void constructConversion();
void constructCopy();
void access();
void compare();
void size();
void debug();
};
typedef Geometry::Rectangle<Float> Rectangle;
typedef Geometry::Rectangle<Int> Rectanglei;
typedef Vector2<Int> Vector2i;
RectangleTest::RectangleTest() {
addTests({&RectangleTest::construct,
&RectangleTest::constructDefault,
&RectangleTest::constructFromSize,
&RectangleTest::constructConversion,
&RectangleTest::constructCopy,
&RectangleTest::access,
&RectangleTest::compare,
&RectangleTest::size,
&RectangleTest::debug});
}
void RectangleTest::construct() {
constexpr Rectanglei a({3, 5}, {23, 78});
CORRADE_COMPARE(a, Rectanglei({3, 5}, {23, 78}));
}
void RectangleTest::constructDefault() {
constexpr Rectanglei a;
CORRADE_COMPARE(a, Rectanglei({0, 0}, {0, 0}));
}
void RectangleTest::constructFromSize() {
CORRADE_COMPARE(Rectanglei::fromSize({3, 5}, {23, 78}), Rectanglei({3, 5}, {26, 83}));
}
void RectangleTest::constructConversion() {
constexpr Rectangle a({1.3f, 2.7f}, {-15.0f, 7.0f});
#ifndef CORRADE_GCC46_COMPATIBILITY
constexpr /* Not constexpr under GCC < 4.7 */
#endif
Rectanglei b(a);
CORRADE_COMPARE(b, Rectanglei({1, 2}, {-15, 7}));
/* Implicit conversion is not allowed */
CORRADE_VERIFY(!(std::is_convertible<Rectangle, Rectanglei>::value));
}
void RectangleTest::constructCopy() {
constexpr Rectanglei a({3, 5}, {23, 78});
constexpr Rectanglei b(a);
CORRADE_COMPARE(b, Rectanglei({3, 5}, {23, 78}));
}
void RectangleTest::access() {
Rectanglei rect({34, 23}, {47, 30});
constexpr Rectanglei crect({34, 23}, {47, 30});
CORRADE_COMPARE(rect.bottomLeft(), Vector2i(34, 23));
CORRADE_COMPARE(rect.topRight(), Vector2i(47, 30));
CORRADE_COMPARE(rect.bottom(), 23);
CORRADE_COMPARE(rect.top(), 30);
CORRADE_COMPARE(rect.left(), 34);
CORRADE_COMPARE(rect.right(), 47);
CORRADE_COMPARE(rect.bottomLeft(), Vector2i(34, 23));
CORRADE_COMPARE(rect.topRight(), Vector2i(47, 30));
constexpr Int bottom = crect.bottom();
constexpr Int top = crect.top();
constexpr Int left = crect.left();
constexpr Int right = crect.right();
CORRADE_COMPARE(bottom, 23);
CORRADE_COMPARE(top, 30);
CORRADE_COMPARE(left, 34);
CORRADE_COMPARE(right, 47);
constexpr Vector2i bottomLeft = crect.bottomLeft();
constexpr Vector2i topRight = crect.topRight();
CORRADE_COMPARE(bottomLeft, Vector2i(34, 23));
CORRADE_COMPARE(topRight, Vector2i(47, 30));
CORRADE_COMPARE(rect.topLeft(), Vector2i(34, 30));
CORRADE_COMPARE(rect.bottomRight(), Vector2i(47, 23));
}
void RectangleTest::compare() {
CORRADE_VERIFY(Rectanglei({34, 23}, {47, 30}) == Rectanglei({34, 23}, {47, 30}));
CORRADE_VERIFY(Rectanglei({34, 23}, {47, 30}) != Rectanglei({34, 23}, {48, 30}));
CORRADE_VERIFY(Rectanglei({34, 23}, {47, 30}) != Rectanglei({35, 23}, {47, 30}));
}
void RectangleTest::size() {
Rectanglei rect({34, 23}, {47, 30});
CORRADE_COMPARE(rect.size(), Vector2i(13, 7));
CORRADE_COMPARE(rect.width(), 13);
CORRADE_COMPARE(rect.height(), 7);
}
void RectangleTest::debug() {
std::ostringstream o;
Debug(&o) << Rectanglei({34, 23}, {47, 30});
CORRADE_COMPARE(o.str(), "Rectangle({34, 23}, {47, 30})\n");
}
}}}}