void
TerminalWindow::OnPaint(Canvas &canvas, const PixelRect &p_dirty)
{
canvas.SetBackgroundTransparent();
canvas.SetTextColor(look.text_color);
canvas.Select(look.font);
const PixelRect cell_dirty = {
p_dirty.left / cell_size.cx,
p_dirty.top / cell_size.cy,
std::min(PixelScalar(p_dirty.right / cell_size.cx + 1),
PixelScalar(data.GetWidth())),
std::min(PixelScalar(p_dirty.bottom / cell_size.cy + 1),
PixelScalar(data.GetHeight())),
};
const PixelScalar x(cell_dirty.left * cell_size.cx);
const size_t length = cell_dirty.right - cell_dirty.left;
auto text = data.GetPointerAt(cell_dirty.left, cell_dirty.top);
for (int cell_y = cell_dirty.top, p_y = cell_y * cell_size.cy;
cell_y < cell_dirty.bottom;
++cell_y, p_y += cell_size.cy, text += data.GetWidth()) {
canvas.DrawFilledRectangle(p_dirty.left, p_y,
p_dirty.right, p_y + cell_size.cy,
look.background_color);
canvas.DrawText(x, p_y, text, length);
}
PixelScalar cell_bottom_y(cell_dirty.bottom * cell_size.cy);
if (cell_bottom_y < p_dirty.bottom)
canvas.DrawFilledRectangle(p_dirty.left, cell_bottom_y,
p_dirty.right, p_dirty.bottom,
look.background_color);
}
void
QuickMenuButtonRenderer::DrawButton(Canvas &canvas, const PixelRect &rc,
bool enabled, bool focused,
bool pressed) const
{
// Draw focus rectangle
if (pressed) {
canvas.DrawFilledRectangle(rc, look.list.pressed.background_color);
canvas.SetTextColor(look.list.pressed.text_color);
} else if (focused) {
canvas.DrawFilledRectangle(rc, look.focused.background_color);
canvas.SetTextColor(enabled
? look.focused.text_color
: look.button.disabled.color);
} else {
if (HaveClipping())
canvas.DrawFilledRectangle(rc, look.background_brush);
canvas.SetTextColor(enabled ? look.text_color : look.button.disabled.color);
}
canvas.Select(*look.button.font);
canvas.SetBackgroundTransparent();
text_renderer.Draw(canvas, rc, caption);
}
void
ProgressBar::OnPaint(Canvas &canvas)
{
unsigned position = 0;
if (min_value < max_value) {
unsigned value = this->value;
if (value < min_value)
value = min_value;
else if (value > max_value)
value = max_value;
#ifdef EYE_CANDY
position = (value - min_value) * (GetWidth() - GetHeight()) /
(max_value - min_value);
#else
position = (value - min_value) * GetWidth() / (max_value - min_value);
#endif
}
#ifdef EYE_CANDY
unsigned margin = GetHeight() / 9;
canvas.SelectNullPen();
canvas.SelectWhiteBrush();
canvas.DrawRoundRectangle(0, 0, GetWidth(), GetHeight(),
GetHeight(), GetHeight());
Brush progress_brush(COLOR_XCSOAR_LIGHT);
canvas.Select(progress_brush);
canvas.DrawRoundRectangle(margin, margin, margin + position,
GetHeight() - margin, GetHeight(), GetHeight());
#else
canvas.DrawFilledRectangle(0, 0, position, GetHeight(), COLOR_GREEN);
canvas.DrawFilledRectangle(position, 0, GetWidth(), GetHeight(), COLOR_WHITE);
#endif
}
void
ButtonFrameRenderer::DrawButton(Canvas &canvas, PixelRect rc,
bool focused, bool pressed) const
{
const ButtonLook::StateLook &_look = focused ? look.focused : look.standard;
canvas.DrawFilledRectangle(rc, _look.background_color);
const unsigned margin = GetMargin();
if (margin < 4) {
/* draw 1-pixel lines */
canvas.Select(pressed ? _look.dark_border_pen : _look.light_border_pen);
for (unsigned i = 0; i < margin; ++i)
canvas.DrawTwoLinesExact(rc.left + i, rc.bottom - 2 - i,
rc.left + i, rc.top + i,
rc.right - 2 - i, rc.top + i);
canvas.Select(pressed ? _look.light_border_pen : _look.dark_border_pen);
for (unsigned i = 0; i < margin; ++i)
canvas.DrawTwoLinesExact(rc.left + 1 + i, rc.bottom - 1 - i,
rc.right - 1 - i, rc.bottom - 1 - i,
rc.right - 1 - i, rc.top + 1 + i);
} else {
/* at 4 pixels or more, it's more efficient to draw a filled
polygon */
const RasterPoint p1[] = {
RasterPoint(rc.left, rc.top),
RasterPoint(rc.right, rc.top),
RasterPoint(rc.right - margin, rc.top + margin),
RasterPoint(rc.left + margin, rc.top + margin),
RasterPoint(rc.left + margin, rc.bottom - margin),
RasterPoint(rc.left, rc.bottom),
};
canvas.SelectNullPen();
canvas.Select(pressed
? _look.dark_border_brush
: _look.light_border_brush);
canvas.DrawTriangleFan(p1, ARRAY_SIZE(p1));
const RasterPoint p2[] = {
RasterPoint(rc.right, rc.bottom),
RasterPoint(rc.right, rc.top),
RasterPoint(rc.right - margin, rc.top + margin),
RasterPoint(rc.right - margin, rc.bottom - margin),
RasterPoint(rc.left + margin, rc.bottom - margin),
RasterPoint(rc.left, rc.bottom),
};
canvas.Select(pressed
? _look.light_border_brush
: _look.dark_border_brush);
canvas.DrawTriangleFan(p2, ARRAY_SIZE(p2));
}
}
void
ListControl::DrawItems(Canvas &canvas, unsigned start, unsigned end) const
{
PixelRect rc = item_rect(start);
canvas.SetBackgroundColor(look.list.background_color);
canvas.SetBackgroundTransparent();
canvas.Select(*look.list.font);
#ifdef ENABLE_OPENGL
/* enable clipping */
GLScissor scissor(OpenGL::translate.x,
OpenGL::screen_height - OpenGL::translate.y - canvas.GetHeight() - 1,
scroll_bar.GetLeft(GetSize()), canvas.GetHeight());
#endif
unsigned last_item = std::min(length, end);
const bool focused = HasFocus();
for (unsigned i = start; i < last_item; i++) {
const bool selected = i == cursor;
const bool pressed = selected && drag_mode == DragMode::CURSOR;
canvas.DrawFilledRectangle(rc,
look.list.GetBackgroundColor(selected,
focused,
pressed));
canvas.SetTextColor(look.list.GetTextColor(selected, focused, pressed));
if (item_renderer != nullptr)
item_renderer->OnPaintItem(canvas, rc, i);
if (focused && selected)
canvas.DrawFocusRectangle(rc);
rc.Offset(0, rc.bottom - rc.top);
}
/* paint the bottom part below the last item */
rc.bottom = canvas.GetHeight();
if (rc.bottom > rc.top)
canvas.DrawFilledRectangle(rc, look.list.background_color);
}
inline void
TabMenuDisplay::PaintMainMenuBorder(Canvas &canvas) const
{
PixelRect rc = GetMainMenuButtonSize(0);
rc.bottom = GetMainMenuButtonSize(GetNumMainMenuItems() - 1).bottom;
rc.Grow(GetTabLineHeight());
canvas.DrawFilledRectangle(rc, COLOR_BLACK);
}
inline void
TabMenuDisplay::PaintSubMenuBorder(Canvas &canvas,
const MainMenuButton &main_button) const
{
PixelRect rc = GetSubMenuButtonSize(main_button.first_page_index);
rc.bottom = GetSubMenuButtonSize(main_button.last_page_index).bottom;
rc.Grow(GetTabLineHeight());
canvas.DrawFilledRectangle(rc, COLOR_BLACK);
}
void
TaskMapButtonRenderer::DrawButton(Canvas &canvas, const PixelRect &rc,
gcc_unused bool enabled,
gcc_unused bool focused,
bool pressed) const
{
if (task == nullptr) {
canvas.ClearWhite();
return;
}
const PixelSize new_size(rc.right - rc.left,
rc.bottom - rc.top);
if (!IsBufferValid(new_size)) {
if (!buffer.IsDefined()) {
#ifdef ENABLE_OPENGL
buffer.Create(new_size);
#else
buffer.Create(canvas, new_size);
#endif
} else
buffer.Grow(new_size);
size = new_size;
#ifdef ENABLE_OPENGL
buffer.Begin(canvas);
#endif
const PixelRect buffer_rc(0, 0, new_size.cx, new_size.cy);
DrawTask(buffer, buffer_rc, look, *task);
#ifdef ENABLE_OPENGL
buffer.Commit(canvas);
#endif
} else {
#ifdef ENABLE_OPENGL
buffer.CopyTo(canvas);
#endif
}
#ifndef ENABLE_OPENGL
canvas.Copy(buffer);
#endif
if (pressed) {
#ifdef ENABLE_OPENGL
const ScopeAlphaBlend alpha_blend;
canvas.DrawFilledRectangle(rc, COLOR_YELLOW.WithAlpha(80));
#else
canvas.InvertRectangle(rc);
#endif
}
}
void
CrossSectionWindow::OnPaintBuffer(Canvas &canvas)
{
const PixelRect rc = GetClientRect();
#ifdef ENABLE_OPENGL
const GLCanvasScissor scissor(rc);
#endif
canvas.DrawFilledRectangle(rc, renderer.inverse? COLOR_BLACK: COLOR_WHITE);
renderer.Paint(canvas, rc);
}
void
MainWindow::OnPaint(Canvas &canvas)
{
if (bottom_widget != nullptr && map != nullptr) {
/* draw a separator between main area and bottom area */
PixelRect rc = map->GetPosition();
rc.top = rc.bottom;
rc.bottom += separator_height;
canvas.DrawFilledRectangle(rc, COLOR_BLACK);
}
SingleWindow::OnPaint(canvas);
}
void
WndCustomButton::OnPaint(Canvas &canvas)
{
#ifdef HAVE_CLIPPING
/* background and selector */
canvas.Clear(look.background_brush);
#endif
PixelRect rc = GetClientRect();
// Draw focus rectangle
if (HasFocus()) {
canvas.DrawFilledRectangle(rc, look.focused.background_color);
canvas.SetTextColor(IsEnabled()
? look.focused.text_color : look.button.disabled.color);
} else {
canvas.DrawFilledRectangle(rc, look.background_color);
canvas.SetTextColor(IsEnabled() ? look.text_color : look.button.disabled.color);
}
// If button has text on it
tstring caption = get_text();
if (caption.empty())
return;
// If button is pressed, offset the text for 3D effect
if (is_down())
OffsetRect(&rc, 1, 1);
canvas.SelectNullPen();
canvas.SetBackgroundTransparent();
#ifndef USE_GDI
canvas.formatted_text(&rc, caption.c_str(), GetTextStyle());
#else
unsigned s = DT_CENTER | DT_NOCLIP | DT_WORDBREAK;
canvas.Select(*(look.button.font));
canvas.formatted_text(&rc, caption.c_str(), s);
#endif
}
void
TabDisplay::PaintButton(Canvas &canvas, unsigned CaptionStyle,
const TCHAR *caption, const PixelRect &rc,
const Bitmap *bmp, const bool isDown, bool inverse)
{
PixelRect rcTextFinal = rc;
const UPixelScalar buttonheight = rc.bottom - rc.top;
const PixelSize text_size = canvas.CalcTextSize(caption);
const int textwidth = text_size.cx;
const int textheight = text_size.cy;
UPixelScalar textheightoffset = 0;
if (textwidth > (rc.right - rc.left)) // assume 2 lines
textheightoffset = std::max(0, (int)(buttonheight - textheight * 2) / 2);
else
textheightoffset = std::max(0, (int)(buttonheight - textheight) / 2);
rcTextFinal.top += textheightoffset;
canvas.DrawFilledRectangle(rc, canvas.GetBackgroundColor());
if (bmp != NULL) {
const PixelSize bitmap_size = bmp->GetSize();
const int offsetx = (rc.right - rc.left - bitmap_size.cx / 2) / 2;
const int offsety = (rc.bottom - rc.top - bitmap_size.cy) / 2;
if (inverse) // black background
canvas.CopyNotOr(rc.left + offsetx,
rc.top + offsety,
bitmap_size.cx / 2,
bitmap_size.cy,
*bmp,
bitmap_size.cx / 2, 0);
else
canvas.CopyAnd(rc.left + offsetx,
rc.top + offsety,
bitmap_size.cx / 2,
bitmap_size.cy,
*bmp,
bitmap_size.cx / 2, 0);
} else {
#ifndef USE_GDI
if (IsDithered())
CaptionStyle |= DT_UNDERLINE;
#endif
canvas.DrawFormattedText(&rcTextFinal, caption, CaptionStyle);
}
}
void
SmallTrafficWindow::OnPaint(Canvas &canvas)
{
FlarmTrafficWindow::OnPaint(canvas);
if (pressed) {
#ifdef ENABLE_OPENGL
const GLBlend blend(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
canvas.DrawFilledRectangle(0, 0, canvas.GetWidth(), canvas.GetHeight(),
COLOR_YELLOW.WithAlpha(80));
#else
canvas.InvertRectangle(GetClientRect());
#endif
}
}
void
SmallTrafficWindow::OnPaint(Canvas &canvas)
{
FlarmTrafficWindow::OnPaint(canvas);
if (pressed) {
#ifdef ENABLE_OPENGL
const ScopeAlphaBlend alpha_blend;
canvas.DrawFilledRectangle(0, 0, canvas.GetWidth(), canvas.GetHeight(),
COLOR_YELLOW.WithAlpha(80));
#else
canvas.InvertRectangle(GetClientRect());
#endif
}
}
void
InfoBoxWindow::PaintTitle(Canvas &canvas)
{
if (data.title.empty())
return;
if (!pressed && !HasFocus() && !dragging && !force_draw_selector &&
settings.border_style == InfoBoxSettings::BorderStyle::SHADED)
canvas.DrawFilledRectangle(title_rect, look.caption_background_color);
canvas.SetTextColor(look.GetTitleColor(data.title_color));
const Font &font = look.title_font;
canvas.Select(font);
PixelSize tsize = canvas.CalcTextSize(data.title);
PixelScalar halftextwidth = (title_rect.left + title_rect.right - tsize.cx) / 2;
PixelScalar x = std::max(PixelScalar(1),
PixelScalar(title_rect.left + halftextwidth));
PixelScalar y = title_rect.top;
canvas.TextAutoClipped(x, y, data.title);
if (settings.border_style == InfoBoxSettings::BorderStyle::TAB &&
halftextwidth > Layout::Scale(3)) {
PixelScalar ytop = title_rect.top + font.GetCapitalHeight() / 2;
PixelScalar ytopedge = ytop + Layout::GetTextPadding();
PixelScalar ybottom = title_rect.top + Layout::Scale(6)
+ font.GetCapitalHeight();
canvas.Select(look.border_pen);
RasterPoint tab[8];
tab[0].x = tab[1].x = title_rect.left;
tab[0].y = tab[7].y = ybottom;
tab[2].x = title_rect.left + Layout::GetTextPadding();
tab[2].y = tab[5].y = tab[3].y = tab[4].y = ytop;
tab[1].y = tab[6].y = ytopedge;
tab[5].x = title_rect.right - Layout::GetTextPadding();
tab[6].x = tab[7].x = title_rect.right;
tab[3].x = title_rect.left + halftextwidth - Layout::Scale(1);
tab[4].x = title_rect.right - halftextwidth + Layout::Scale(1);
canvas.DrawPolyline(tab, 4);
canvas.DrawPolyline(tab + 4, 4);
}
}
void
GaugeVario::RenderClimb(Canvas &canvas)
{
const PixelRect rc = GetClientRect();
int x = rc.right - Layout::Scale(14);
int y = rc.bottom - Layout::Scale(24);
if (!dirty)
return;
if (Basic().switch_state.flight_mode == SwitchState::FlightMode::CIRCLING)
canvas.ScaleCopy(x, y, look.climb_bitmap, 12, 0, 12, 12);
else if (IsPersistent())
canvas.DrawFilledRectangle(x, y, x + Layout::Scale(12), y + Layout::Scale(12),
look.background_color);
}
void
DrawGlassBackground(Canvas &canvas, const PixelRect &rc, Color color)
{
canvas.DrawFilledRectangle(rc, color);
#if defined(EYE_CANDY) && defined(ENABLE_OPENGL)
if (color != COLOR_WHITE)
/* apply only to white background for now */
return;
const GLCanvasScissor scissor(rc);
const Color shadow = color.Shadow();
const RasterPoint center = rc.GetCenter();
const int size = std::min(rc.right - rc.left, rc.bottom - rc.top) / 4;
const RasterPoint vertices[] = {
{ center.x + 1024, center.y - 1024 },
{ center.x + 1024 + size, center.y - 1024 + size },
{ center.x - 1024, center.y + 1024 },
{ center.x - 1024 + size, center.y + 1024 + size },
};
glVertexPointer(2, GL_VALUE, 0, vertices);
const Color colors[] = {
shadow, color,
shadow, color,
};
glEnableClientState(GL_COLOR_ARRAY);
#ifdef HAVE_GLES
glColorPointer(4, GL_FIXED, 0, colors);
#else
glColorPointer(4, GL_UNSIGNED_BYTE, 0, colors);
#endif
static_assert(ARRAY_SIZE(vertices) == ARRAY_SIZE(colors),
"Array size mismatch");
glDrawArrays(GL_TRIANGLE_STRIP, 0, ARRAY_SIZE(vertices));
glDisableClientState(GL_COLOR_ARRAY);
#endif
}
void
SmallTrafficWindow::OnPaint(Canvas &canvas)
{
FlarmTrafficWindow::OnPaint(canvas);
if (pressed) {
#ifdef ENABLE_OPENGL
GLEnable blend(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
canvas.DrawFilledRectangle(0, 0, canvas.GetWidth(), canvas.GetHeight(),
COLOR_YELLOW.WithAlpha(80));
#elif defined(USE_GDI)
const PixelRect rc = GetClientRect();
::InvertRect(canvas, &rc);
#endif
}
}
void
ButtonFrameRenderer::DrawButton(Canvas &canvas, PixelRect rc,
bool focused, bool pressed) const
{
const ButtonLook::StateLook &_look = focused ? look.focused : look.standard;
canvas.DrawFilledRectangle(rc, _look.background_color);
canvas.Select(pressed ? _look.dark_border_pen : _look.light_border_pen);
canvas.DrawTwoLinesExact(rc.left, rc.bottom - 2, rc.left, rc.top, rc.right - 2,
rc.top);
canvas.DrawTwoLinesExact(rc.left + 1, rc.bottom - 3, rc.left + 1, rc.top + 1,
rc.right - 3, rc.top + 1);
canvas.Select(pressed ? _look.light_border_pen : _look.dark_border_pen);
canvas.DrawTwoLinesExact(rc.left + 1, rc.bottom - 1, rc.right - 1, rc.bottom - 1,
rc.right - 1, rc.top + 1);
canvas.DrawTwoLinesExact(rc.left + 2, rc.bottom - 2, rc.right - 2, rc.bottom - 2,
rc.right - 2, rc.top + 2);
}
void
TabRenderer::Draw(Canvas &canvas, const PixelRect &rc,
const DialogLook &look,
const TCHAR *caption, const MaskedIcon *icon,
bool focused, bool pressed, bool selected) const
{
canvas.DrawFilledRectangle(rc,
look.list.GetBackgroundColor(selected, focused,
pressed));
canvas.Select(*look.button.font);
canvas.SetTextColor(look.list.GetTextColor(selected, focused, pressed));
canvas.SetBackgroundTransparent();
if (icon != nullptr) {
icon->Draw(canvas, rc, selected);
} else {
text_renderer.Draw(canvas, rc, caption);
}
}
static void
OnPaintListItem(Canvas &canvas, const PixelRect rc, unsigned i)
{
assert(i < ARRAY_SIZE(AirspaceLook::preset_colors));
const Color color(AirspaceLook::preset_colors[i]);
PixelRect rc2 = rc;
rc2.Grow(-Layout::FastScale(2));
#ifdef USE_GDI
canvas.DrawFilledRectangle(rc2, color);
canvas.SelectHollowBrush();
#else
Brush brush(color);
canvas.Select(brush);
#endif
canvas.SelectBlackPen();
canvas.Rectangle(rc2.left, rc2.top, rc2.right, rc2.bottom);
}
void
DrawVerticalGradient(Canvas &canvas, const PixelRect &rc,
Color top_color, Color bottom_color, Color fallback_color)
{
#if defined(EYE_CANDY) && defined(ENABLE_OPENGL)
const RasterPoint vertices[] = {
rc.GetTopLeft(),
rc.GetTopRight(),
rc.GetBottomLeft(),
rc.GetBottomRight(),
};
glVertexPointer(2, GL_VALUE, 0, vertices);
const Color colors[] = {
top_color,
top_color,
bottom_color,
bottom_color,
};
glEnableClientState(GL_COLOR_ARRAY);
#ifdef HAVE_GLES
glColorPointer(4, GL_FIXED, 0, colors);
#else
glColorPointer(4, GL_UNSIGNED_BYTE, 0, colors);
#endif
static_assert(ARRAY_SIZE(vertices) == ARRAY_SIZE(colors),
"Array size mismatch");
glDrawArrays(GL_TRIANGLE_STRIP, 0, ARRAY_SIZE(vertices));
glDisableClientState(GL_COLOR_ARRAY);
#else
canvas.DrawFilledRectangle(rc, fallback_color);
#endif
}
//------------------------------------------------------------------------------
int
main(int argc, char *argv[])
{
QApplication app(argc, argv);
Canvas c;
Pen(Pen::SOLID, 1, Color(0, 0, 0));
{
c.Select(Brush(Color(128, 128, 0, Color::TRANSPARENT)));
c.DrawKeyhole(200, 100, 50, 100, Angle::Degrees(-20), Angle::Degrees(20));
c.DrawKeyhole(400, 100, 50, 100, Angle::Degrees(70), Angle::Degrees(110));
c.DrawKeyhole(200, 300, 50, 100, Angle::Degrees(160), Angle::Degrees(200));
c.DrawKeyhole(400, 300, 50, 100, Angle::Degrees(-110), Angle::Degrees(-70));
c.show();
app.exec();
}
{
c.Clear();
c.DrawKeyhole(200, 100, 50, 100, Angle::Degrees(35), Angle::Degrees(55));
c.DrawKeyhole(400, 100, 50, 100, Angle::Degrees(125), Angle::Degrees(145));
c.DrawKeyhole(200, 300, 50, 100, Angle::Degrees(215), Angle::Degrees(235));
c.DrawKeyhole(400, 300, 50, 100, Angle::Degrees(305), Angle::Degrees(325));
c.show();
app.exec();
}
{
c.Clear();
c.DrawFilledRectangle(0, 0, 100, 100, Color(128, 128, 128,
Color::TRANSPARENT));
c.DrawFilledRectangle(100, 100, 200, 200, Color(128, 0, 0,
Color::TRANSPARENT));
c.DrawFilledRectangle(150, 150, 250, 250, Color(0, 128, 0,
Color::TRANSPARENT));
c.DrawFilledRectangle(200, 200, 300, 300, Color(0, 0, 128,
Color::TRANSPARENT));
c.DrawTransparentText(0, 0, "0");
c.DrawTransparentText(0, 100, "100");
c.DrawTransparentText(0, 200, "200");
c.DrawTransparentText(0, 300, "300");
c.DrawTransparentText(0, 400, "400");
c.DrawTransparentText(0, 500, "500");
c.DrawTransparentText(100, c.GetFontHeight(), "100");
c.DrawTransparentText(200, c.GetFontHeight(), "200");
c.DrawTransparentText(300, c.GetFontHeight(), "300");
c.DrawTransparentText(400, c.GetFontHeight(), "400");
c.DrawTransparentText(500, c.GetFontHeight(), "500");
c.show();
app.exec();
}
{
c.Clear();
c.DrawOutlineRectangle(100, 100, 200, 200, Color(255, 0, 0));
c.show();
app.exec();
}
{
c.Clear();
c.DrawRoundRectangle(100, 100, 200, 200, 10, 10);
c.DrawRoundRectangle(200, 200, 300, 300, 100, 100);
c.DrawRoundRectangle(300, 300, 400, 400, 50, 50);
c.show();
app.exec();
}
{
c.Clear();
PixelRect rc;
rc.left = 100;
rc.top = 100;
rc.right = 200;
rc.bottom = 200;
c.DrawRaisedEdge(rc);
c.show();
app.exec();
}
{
c.Clear();
RasterPoint rp[4];
rp[0] = {100, 100};
rp[1] = {200, 200};
rp[2] = {200, 300};
rp[3] = {300, 400};
c.DrawPolyline(rp, 4);
c.show();
app.exec();
}
{
c.Clear();
RasterPoint rp[6];
rp[0] = {100, 100};
rp[1] = {150, 50};
rp[2] = {200, 100};
rp[3] = {200, 200};
rp[4] = {150, 200};
rp[5] = {100, 100};
c.DrawPolygon(rp, 6);
c.show();
app.exec();
}
{
c.Clear();
RasterPoint rp[4];
rp[0] = {100, 100};
rp[1] = {200, 50};
rp[2] = {200, 150};
rp[3] = {150, 200};
c.DrawTriangleFan(rp, 4);
c.show();
app.exec();
}
{
c.Clear();
c.DrawHLine(100, 200, 100, Color(255, 0, 0));
c.DrawHLine(100, 200, 200, Color(0, 255, 0));
c.DrawHLine(100, 200, 300, Color(0, 0, 255));
c.show();
app.exec();
}
{
c.Clear();
c.DrawLine(100, 100, 200, 200);
c.DrawCircle(250, 250, 50);
c.DrawSegment(100, 250, 50, Angle::Degrees(10), Angle::Degrees(30), false);
c.show();
app.exec();
}
{
c.Clear();
c.DrawAnnulus(100, 100, 50, 100, Angle::Degrees(10), Angle::Degrees(60));
c.DrawAnnulus(300, 100, 50, 100, Angle::Degrees(0), Angle::Degrees(360));
c.DrawAnnulus(100, 300, 50, 100, Angle::Degrees(0), Angle::Degrees(0));
c.show();
app.exec();
}
{
PixelSize rc = c.CalcTextSize("Hello");
std::cout << "Size of \"Hello\": " << rc.cx << ", " << rc.cy << std::endl;
c.DrawClippedText(100, 100, rc.cx / 2, "Hello");
c.show();
app.exec();
}
{
std::cout << "Height of font: " << c.GetFontHeight() << std::endl;
}
{
c.Clear();
c.DrawText(0, 50, "50");
c.Clear();
c.show();
return app.exec();
}
}
void
GaugeVario::RenderBugs(Canvas &canvas)
{
static int last_bugs = -1;
static PixelRect label_rect = {-1,-1,-1,-1};
static PixelRect value_rect = {-1,-1,-1,-1};
static RasterPoint label_pos = {-1,-1};
static RasterPoint value_pos = {-1,-1};
if (!bugs_initialised) {
const PixelRect rc = GetClientRect();
PixelSize tSize;
label_pos.x = 1;
label_pos.y = rc.bottom - 2
- look.text_font->GetCapitalHeight()
- look.text_font->GetAscentHeight();
value_pos.x = 1;
value_pos.y = rc.bottom - 1
- look.text_font->GetAscentHeight();
label_rect.left = label_pos.x;
label_rect.top = label_pos.y
+ look.text_font->GetAscentHeight()
- look.text_font->GetCapitalHeight();
value_rect.left = value_pos.x;
value_rect.top = value_pos.y
+ look.text_font->GetAscentHeight()
- look.text_font->GetCapitalHeight();
canvas.Select(*look.text_font);
tSize = canvas.CalcTextSize(TEXT_BUG);
label_rect.right = label_rect.left + tSize.cx;
label_rect.bottom = label_rect.top
+ look.text_font->GetCapitalHeight()
+ look.text_font->GetHeight()
- look.text_font->GetAscentHeight();
tSize = canvas.CalcTextSize(_T("100%"));
value_rect.right = value_rect.left + tSize.cx;
value_rect.bottom = value_rect.top +
look.text_font->GetCapitalHeight();
bugs_initialised = true;
}
int bugs = iround((fixed(1) - GetComputerSettings().polar.bugs) * 100);
if (!IsPersistent() || bugs != last_bugs) {
canvas.Select(*look.text_font);
if (IsPersistent())
canvas.SetBackgroundColor(look.background_color);
else
canvas.SetBackgroundTransparent();
if (IsPersistent() || last_bugs < 1 || bugs < 1) {
if (bugs > 0) {
canvas.SetTextColor(look.dimmed_text_color);
if (IsPersistent())
canvas.DrawOpaqueText(label_pos.x, label_pos.y, label_rect, TEXT_BUG);
else
canvas.DrawText(label_pos.x, label_pos.y, TEXT_BUG);
} else if (IsPersistent())
canvas.DrawFilledRectangle(label_rect, look.background_color);
}
if (bugs > 0) {
TCHAR buffer[18];
_stprintf(buffer, _T("%d%%"), bugs);
canvas.SetTextColor(look.text_color);
if (IsPersistent())
canvas.DrawOpaqueText(value_pos.x, value_pos.y, value_rect, buffer);
else
canvas.DrawText(value_pos.x, value_pos.y, buffer);
} else if (IsPersistent())
canvas.DrawFilledRectangle(value_rect, look.background_color);
if (IsPersistent())
last_bugs = bugs;
}
}
void
GaugeVario::RenderBallast(Canvas &canvas)
{
static int last_ballast = -1;
static PixelRect label_rect = {-1,-1,-1,-1};
static PixelRect value_rect = {-1,-1,-1,-1};
static RasterPoint label_pos = {-1,-1};
static RasterPoint value_pos = {-1,-1};
if (!ballast_initialised) { // ontime init, origin and background rect
const PixelRect rc = GetClientRect();
PixelSize tSize;
// position of ballast label
label_pos.x = 1;
label_pos.y = rc.top + 2
+ look.text_font->GetCapitalHeight() * 2
- look.text_font->GetAscentHeight();
// position of ballast value
value_pos.x = 1;
value_pos.y = rc.top + 1
+ look.text_font->GetCapitalHeight()
- look.text_font->GetAscentHeight();
// set upper left corner
label_rect.left = label_pos.x;
label_rect.top = label_pos.y
+ look.text_font->GetAscentHeight()
- look.text_font->GetCapitalHeight();
// set upper left corner
value_rect.left = value_pos.x;
value_rect.top = value_pos.y
+ look.text_font->GetAscentHeight()
- look.text_font->GetCapitalHeight();
// get max label size
canvas.Select(*look.text_font);
tSize = canvas.CalcTextSize(TEXT_BALLAST);
// update back rect with max label size
label_rect.right = label_rect.left + tSize.cx;
label_rect.bottom = label_rect.top +
look.text_font->GetCapitalHeight();
// get max value size
tSize = canvas.CalcTextSize(_T("100%"));
value_rect.right = value_rect.left + tSize.cx;
// update back rect with max label size
value_rect.bottom = value_rect.top +
look.text_font->GetCapitalHeight();
ballast_initialised = true;
}
int ballast = iround(GetGlidePolar().GetBallast() * 100);
if (!IsPersistent() || ballast != last_ballast) {
// ballast hase been changed
canvas.Select(*look.text_font);
if (IsPersistent())
canvas.SetBackgroundColor(look.background_color);
else
canvas.SetBackgroundTransparent();
if (IsPersistent() || last_ballast < 1 || ballast < 1) {
// new ballast is 0, hide label
if (ballast > 0) {
canvas.SetTextColor(look.dimmed_text_color);
// ols ballast was 0, show label
if (IsPersistent())
canvas.DrawOpaqueText(label_pos.x, label_pos.y, label_rect, TEXT_BALLAST);
else
canvas.DrawText(label_pos.x, label_pos.y, TEXT_BALLAST);
} else if (IsPersistent())
canvas.DrawFilledRectangle(label_rect, look.background_color);
}
// new ballast 0, hide value
if (ballast > 0) {
TCHAR buffer[18];
_stprintf(buffer, _T("%u%%"), ballast);
canvas.SetTextColor(look.text_color);
if (IsPersistent())
canvas.DrawOpaqueText(value_pos.x, value_pos.y, value_rect, buffer);
else
canvas.DrawText(value_pos.x, value_pos.y, buffer);
} else if (IsPersistent())
canvas.DrawFilledRectangle(value_rect, look.background_color);
if (IsPersistent())
last_ballast = ballast;
}
}
void
GaugeVario::RenderSpeedToFly(Canvas &canvas, int x, int y)
{
if (!Basic().airspeed_available ||
!Basic().total_energy_vario_available)
return;
static fixed last_v_diff;
fixed v_diff;
const unsigned arrow_y_size = Layout::Scale(3);
const unsigned arrow_x_size = Layout::Scale(7);
const PixelRect rc = GetClientRect();
int nary = NARROWS * arrow_y_size;
int ytop = rc.top + YOFFSET + nary; // JMW
int ybottom = rc.bottom - YOFFSET - nary - Layout::FastScale(1);
ytop += Layout::Scale(14);
ybottom -= Layout::Scale(14);
x = rc.right - 2 * arrow_x_size;
// only draw speed command if flying and vario is not circling
if ((Calculated().flight.flying)
&& (!Basic().gps.simulator || !Calculated().circling)) {
v_diff = Calculated().V_stf - Basic().indicated_airspeed;
v_diff = Clamp(v_diff, -DELTA_V_LIMIT, DELTA_V_LIMIT); // limit it
v_diff = iround(v_diff/DELTA_V_STEP) * DELTA_V_STEP;
} else
v_diff = fixed(0);
if (!IsPersistent() || last_v_diff != v_diff || dirty) {
last_v_diff = v_diff;
if (IsPersistent()) {
// bottom (too slow)
canvas.DrawFilledRectangle(x, ybottom + YOFFSET,
x + arrow_x_size * 2 + 1,
ybottom + YOFFSET + nary + arrow_y_size +
Layout::FastScale(2),
look.background_color);
// top (too fast)
canvas.DrawFilledRectangle(x, ytop - YOFFSET + 1,
x + arrow_x_size * 2 +1,
ytop - YOFFSET - nary + 1 - arrow_y_size -
Layout::FastScale(2),
look.background_color);
}
RenderClimb(canvas);
canvas.SelectNullPen();
if (look.colors) {
if (positive(v_diff)) {
// too slow
canvas.Select(look.sink_brush);
} else {
canvas.Select(look.lift_brush);
}
} else {
if (look.inverse)
canvas.SelectWhiteBrush();
else
canvas.SelectBlackBrush();
}
if (positive(v_diff)) {
// too slow
y = ybottom;
y += YOFFSET;
while (positive(v_diff)) {
if (v_diff > DELTA_V_STEP) {
canvas.Rectangle(x, y,
x + arrow_x_size * 2 + 1, y + arrow_y_size - 1);
} else {
RasterPoint arrow[3];
arrow[0].x = x;
arrow[0].y = y;
arrow[1].x = x + arrow_x_size;
arrow[1].y = y + arrow_y_size - 1;
arrow[2].x = x + 2 * arrow_x_size;
arrow[2].y = y;
canvas.DrawTriangleFan(arrow, 3);
}
v_diff -= DELTA_V_STEP;
y += arrow_y_size;
}
} else if (negative(v_diff)) {
// too fast
y = ytop;
y -= YOFFSET;
while (negative(v_diff)) {
if (v_diff < -DELTA_V_STEP) {
canvas.Rectangle(x, y + 1,
x + arrow_x_size * 2 + 1, y - arrow_y_size + 2);
} else {
RasterPoint arrow[3];
arrow[0].x = x;
arrow[0].y = y;
arrow[1].x = x + arrow_x_size;
arrow[1].y = y - arrow_y_size + 1;
arrow[2].x = x + 2 * arrow_x_size;
arrow[2].y = y;
canvas.DrawTriangleFan(arrow, 3);
}
v_diff += DELTA_V_STEP;
y -= arrow_y_size;
}
}
}
}
void
TabDisplay::PaintButton(Canvas &canvas, unsigned CaptionStyle,
const TCHAR *caption, const PixelRect &rc,
const Bitmap *bmp, const bool isDown, bool inverse)
{
PixelRect rcTextFinal = rc;
const UPixelScalar buttonheight = rc.bottom - rc.top;
const PixelSize text_size = canvas.CalcTextSize(caption);
const int textwidth = text_size.cx;
const int textheight = text_size.cy;
UPixelScalar textheightoffset = 0;
if (textwidth > (rc.right - rc.left)) // assume 2 lines
textheightoffset = std::max(0, (int)(buttonheight - textheight * 2) / 2);
else
textheightoffset = std::max(0, (int)(buttonheight - textheight) / 2);
rcTextFinal.top += textheightoffset;
canvas.DrawFilledRectangle(rc, canvas.GetBackgroundColor());
if (bmp != nullptr) {
const PixelSize bitmap_size = bmp->GetSize();
const int offsetx = (rc.right - rc.left - bitmap_size.cx / 2) / 2;
const int offsety = (rc.bottom - rc.top - bitmap_size.cy) / 2;
#ifdef ENABLE_OPENGL
if (inverse) {
OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE);
/* invert the texture color */
OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB, GL_REPLACE);
OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_SRC0_RGB, GL_TEXTURE);
OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB, GL_ONE_MINUS_SRC_COLOR);
/* copy the texture alpha */
OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA, GL_REPLACE);
OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_SRC0_ALPHA, GL_TEXTURE);
OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA, GL_SRC_ALPHA);
} else
/* simple copy */
OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
const GLEnable scope(GL_TEXTURE_2D);
const GLBlend blend(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
GLTexture &texture = *bmp->GetNative();
texture.Bind();
texture.Draw(rc.left + offsetx, rc.top + offsety);
#else
if (inverse) // black background
canvas.CopyNotOr(rc.left + offsetx,
rc.top + offsety,
bitmap_size.cx / 2,
bitmap_size.cy,
*bmp,
bitmap_size.cx / 2, 0);
else
canvas.CopyAnd(rc.left + offsetx,
rc.top + offsety,
bitmap_size.cx / 2,
bitmap_size.cy,
*bmp,
bitmap_size.cx / 2, 0);
#endif
} else {
#ifndef USE_GDI
if (IsDithered())
CaptionStyle |= DT_UNDERLINE;
#endif
canvas.DrawFormattedText(&rcTextFinal, caption, CaptionStyle);
}
}
void
Background::OnPaint(Canvas &canvas)
{
canvas.DrawFilledRectangle(this->rect, this->color);
}
void
GaugeVario::RenderBugs(Canvas &canvas)
{
static int last_bugs = -1;
static PixelRect recLabelBk = {-1,-1,-1,-1};
static PixelRect recValueBk = {-1,-1,-1,-1};
static RasterPoint orgLabel = {-1,-1};
static RasterPoint orgValue = {-1,-1};
if (!bugs_initialised) {
const PixelRect rc = get_client_rect();
PixelSize tSize;
orgLabel.x = 1;
orgLabel.y = rc.bottom - 2
- look.text_font->GetCapitalHeight()
- look.text_font->GetAscentHeight();
orgValue.x = 1;
orgValue.y = rc.bottom - 1
- look.text_font->GetAscentHeight();
recLabelBk.left = orgLabel.x;
recLabelBk.top = orgLabel.y
+ look.text_font->GetAscentHeight()
- look.text_font->GetCapitalHeight();
recValueBk.left = orgValue.x;
recValueBk.top = orgValue.y
+ look.text_font->GetAscentHeight()
- look.text_font->GetCapitalHeight();
canvas.Select(*look.text_font);
tSize = canvas.CalcTextSize(TextBug);
recLabelBk.right = recLabelBk.left + tSize.cx;
recLabelBk.bottom = recLabelBk.top
+ look.text_font->GetCapitalHeight()
+ look.text_font->GetHeight()
- look.text_font->GetAscentHeight();
tSize = canvas.CalcTextSize(_T("100%"));
recValueBk.right = recValueBk.left + tSize.cx;
recValueBk.bottom = recValueBk.top +
look.text_font->GetCapitalHeight();
bugs_initialised = true;
}
int bugs = iround((fixed_one - GetComputerSettings().polar.bugs) * 100);
if (is_persistent() || bugs != last_bugs) {
canvas.Select(*look.text_font);
if (is_persistent())
canvas.SetBackgroundColor(look.background_color);
else
canvas.SetBackgroundTransparent();
if (is_persistent() || last_bugs < 1 || bugs < 1) {
if (bugs > 0) {
canvas.SetTextColor(look.dimmed_text_color);
if (is_persistent())
canvas.text_opaque(orgLabel.x, orgLabel.y, recLabelBk, TextBug);
else
canvas.text(orgLabel.x, orgLabel.y, TextBug);
} else if (is_persistent())
canvas.DrawFilledRectangle(recLabelBk, look.background_color);
}
if (bugs > 0) {
TCHAR buffer[18];
_stprintf(buffer, _T("%d%%"), bugs);
canvas.SetTextColor(look.text_color);
if (is_persistent())
canvas.text_opaque(orgValue.x, orgValue.y, recValueBk, buffer);
else
canvas.text(orgValue.x, orgValue.y, buffer);
} else if (is_persistent())
canvas.DrawFilledRectangle(recValueBk, look.background_color);
if (is_persistent())
last_bugs = bugs;
}
}
void
GaugeVario::RenderBallast(Canvas &canvas)
{
static unsigned last_ballast = -1;
static PixelRect recLabelBk = {-1,-1,-1,-1};
static PixelRect recValueBk = {-1,-1,-1,-1};
static RasterPoint orgLabel = {-1,-1};
static RasterPoint orgValue = {-1,-1};
if (!ballast_initialised) { // ontime init, origin and background rect
const PixelRect rc = get_client_rect();
PixelSize tSize;
// position of ballast label
orgLabel.x = 1;
orgLabel.y = rc.top + 2
+ look.text_font->GetCapitalHeight() * 2
- look.text_font->GetAscentHeight();
// position of ballast value
orgValue.x = 1;
orgValue.y = rc.top + 1
+ look.text_font->GetCapitalHeight()
- look.text_font->GetAscentHeight();
// set upper left corner
recLabelBk.left = orgLabel.x;
recLabelBk.top = orgLabel.y
+ look.text_font->GetAscentHeight()
- look.text_font->GetCapitalHeight();
// set upper left corner
recValueBk.left = orgValue.x;
recValueBk.top = orgValue.y
+ look.text_font->GetAscentHeight()
- look.text_font->GetCapitalHeight();
// get max label size
canvas.Select(*look.text_font);
tSize = canvas.CalcTextSize(TextBal);
// update back rect with max label size
recLabelBk.right = recLabelBk.left + tSize.cx;
recLabelBk.bottom = recLabelBk.top +
look.text_font->GetCapitalHeight();
// get max value size
tSize = canvas.CalcTextSize(_T("100%"));
recValueBk.right = recValueBk.left + tSize.cx;
// update back rect with max label size
recValueBk.bottom = recValueBk.top +
look.text_font->GetCapitalHeight();
ballast_initialised = true;
}
unsigned ballast = uround(Calculated().common_stats.current_ballast * 100);
if (!is_persistent() || ballast != last_ballast) {
// ballast hase been changed
canvas.Select(*look.text_font);
if (is_persistent())
canvas.SetBackgroundColor(look.background_color);
else
canvas.SetBackgroundTransparent();
if (is_persistent() || last_ballast == 0 || ballast == 0) {
// new ballast is 0, hide label
if (ballast > 0) {
canvas.SetTextColor(look.dimmed_text_color);
// ols ballast was 0, show label
if (is_persistent())
canvas.text_opaque(orgLabel.x, orgLabel.y, recLabelBk, TextBal);
else
canvas.text(orgLabel.x, orgLabel.y, TextBal);
} else if (is_persistent())
canvas.DrawFilledRectangle(recLabelBk, look.background_color);
}
// new ballast 0, hide value
if (ballast > 0) {
TCHAR buffer[18];
_stprintf(buffer, _T("%u%%"), ballast);
canvas.SetTextColor(look.text_color);
if (is_persistent())
canvas.text_opaque(orgValue.x, orgValue.y, recValueBk, buffer);
else
canvas.text(orgValue.x, orgValue.y, buffer);
} else if (is_persistent())
canvas.DrawFilledRectangle(recValueBk, look.background_color);
if (is_persistent())
last_ballast = ballast;
}
}