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frames: Adapt frame mask/bounds
The frame shape is relevant in three places: - the window decoration we draw - the frame mask (used for the shape region) - the frame bounds (used for clipping) All three should match, so make sure to use the same GTK+ method for the first two, and bring the (non-antialiased) third closer to the other two by removing an obscure modifier from the corner radius. https://bugzilla.gnome.org/show_bug.cgi?id=741917
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26c4c21e13
commit
2cabc067d1
106
src/ui/frames.c
106
src/ui/frames.c
@ -671,37 +671,6 @@ meta_frames_get_borders (MetaFrames *frames,
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meta_ui_frame_get_borders (frames, frame, borders);
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}
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static void
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meta_ui_frame_get_corner_radiuses (MetaFrames *frames,
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MetaUIFrame *frame,
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float *top_left,
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float *top_right,
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float *bottom_left,
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float *bottom_right)
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{
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MetaFrameGeometry fgeom;
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meta_frames_calc_geometry (frames, frame, &fgeom);
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/* For compatibility with the code in get_visible_rect(), there's
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* a mysterious sqrt() added to the corner radiuses:
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*
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* const float radius = sqrt(corner) + corner;
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*
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* It's unclear why the radius is calculated like this, but we
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* need to be consistent with it.
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*/
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if (top_left)
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*top_left = fgeom.top_left_corner_rounded_radius + sqrt(fgeom.top_left_corner_rounded_radius);
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if (top_right)
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*top_right = fgeom.top_right_corner_rounded_radius + sqrt(fgeom.top_right_corner_rounded_radius);
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if (bottom_left)
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*bottom_left = fgeom.bottom_left_corner_rounded_radius + sqrt(fgeom.bottom_left_corner_rounded_radius);
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if (bottom_right)
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*bottom_right = fgeom.bottom_right_corner_rounded_radius + sqrt(fgeom.bottom_right_corner_rounded_radius);
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}
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/* The client rectangle surrounds client window; it subtracts both
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* the visible and invisible borders from the frame window's size.
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*/
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@ -751,7 +720,7 @@ get_visible_region (MetaFrames *frames,
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if (fgeom->top_left_corner_rounded_radius != 0)
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{
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const int corner = fgeom->top_left_corner_rounded_radius;
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const float radius = sqrt(corner) + corner;
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const float radius = corner;
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int i;
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for (i=0; i<corner; i++)
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@ -769,7 +738,7 @@ get_visible_region (MetaFrames *frames,
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if (fgeom->top_right_corner_rounded_radius != 0)
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{
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const int corner = fgeom->top_right_corner_rounded_radius;
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const float radius = sqrt(corner) + corner;
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const float radius = corner;
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int i;
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for (i=0; i<corner; i++)
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@ -787,7 +756,7 @@ get_visible_region (MetaFrames *frames,
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if (fgeom->bottom_left_corner_rounded_radius != 0)
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{
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const int corner = fgeom->bottom_left_corner_rounded_radius;
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const float radius = sqrt(corner) + corner;
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const float radius = corner;
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int i;
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for (i=0; i<corner; i++)
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@ -805,7 +774,7 @@ get_visible_region (MetaFrames *frames,
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if (fgeom->bottom_right_corner_rounded_radius != 0)
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{
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const int corner = fgeom->bottom_right_corner_rounded_radius;
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const float radius = sqrt(corner) + corner;
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const float radius = corner;
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int i;
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for (i=0; i<corner; i++)
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@ -1614,8 +1583,6 @@ get_visible_frame_border_region (MetaUIFrame *frame)
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return frame_border;
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}
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#define TAU (2*M_PI)
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/*
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* Draw the opaque and semi-opaque pixels of this frame into a mask.
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*
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@ -1646,68 +1613,23 @@ meta_frames_get_mask (MetaFrames *frames,
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cairo_t *cr)
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{
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MetaUIFrame *frame = meta_frames_lookup_window (frames, xwindow);
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float top_left, top_right, bottom_left, bottom_right;
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int x, y;
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MetaFrameBorders borders;
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MetaFrameFlags flags;
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if (frame == NULL)
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meta_bug ("No such frame 0x%lx\n", xwindow);
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cairo_save (cr);
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meta_core_get (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
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xwindow,
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META_CORE_GET_FRAME_FLAGS, &flags,
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META_CORE_GET_END);
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meta_style_info_set_flags (frame->style_info, flags);
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meta_ui_frame_get_borders (frames, frame, &borders);
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meta_ui_frame_get_corner_radiuses (frames, frame,
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&top_left, &top_right,
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&bottom_left, &bottom_right);
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/* top left */
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x = borders.invisible.left;
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y = borders.invisible.top;
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cairo_arc (cr,
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x + top_left,
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y + top_left,
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top_left,
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2 * TAU / 4,
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3 * TAU / 4);
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/* top right */
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x = width - borders.invisible.right - top_right;
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y = borders.invisible.top;
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cairo_arc (cr,
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x,
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y + top_right,
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top_right,
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3 * TAU / 4,
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4 * TAU / 4);
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/* bottom right */
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x = width - borders.invisible.right - bottom_right;
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y = height - borders.invisible.bottom - bottom_right;
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cairo_arc (cr,
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x,
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y,
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bottom_right,
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0 * TAU / 4,
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1 * TAU / 4);
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/* bottom left */
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x = borders.invisible.left;
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y = height - borders.invisible.bottom - bottom_left;
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cairo_arc (cr,
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x + bottom_left,
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y,
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bottom_left,
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1 * TAU / 4,
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2 * TAU / 4);
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cairo_set_source_rgba (cr, 1, 1, 1, 1);
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cairo_fill (cr);
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cairo_restore (cr);
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gtk_render_background (frame->style_info->styles[META_STYLE_ELEMENT_FRAME], cr,
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borders.invisible.left, borders.invisible.top,
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width - borders.invisible.left - borders.invisible.right,
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height - borders.invisible.top - borders.invisible.bottom);
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}
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/* XXX -- this is disgusting. Find a better approach here.
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