diff options
author | Matthias Hopf <mhopf@suse.de> | 2008-12-08 14:40:07 +0100 |
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committer | Matthias Hopf <mhopf@suse.de> | 2008-12-08 14:40:07 +0100 |
commit | e71912062f3985dd2f4d7b37e415b4a614b51d9b (patch) | |
tree | 4eddf33af2c83ec4e6f75d415c2b569125702d58 | |
parent | 19a851fc85192906586138c5b17740ba28328eaa (diff) |
Add unicode art pictures for panning.
-rw-r--r-- | randrproto.txt | 37 |
1 files changed, 36 insertions, 1 deletions
diff --git a/randrproto.txt b/randrproto.txt index 5244379..65b122d 100644 --- a/randrproto.txt +++ b/randrproto.txt @@ -121,6 +121,9 @@ following features are added in this version: can be used to scale the screen up/down as well as perform projector keystone correct or other effects. + • Panning. It was removed with RandR 1.2 because the old semantics didn't + fit any longer. With RandR 1.3 panning can be specified per crtc. + 1.1 Acknowledgements Our thanks to the contributors to the design found on the xpert mailing @@ -1116,6 +1119,16 @@ dynamic changes in the display environment. successfully set, the request is ignored and InvalidTime returned in status. + ┌──┳━━━━━━━━━━━━━━┳─────┬ ─ ─ ─ ─ ─ ┐ + │ ┃ CRTC ┃ │ + │ ┃ ┃ │ │ + │ ┃ X┃→ │ + │ ┃ ┃ │ │ framebuffer + │ ┗━━━━━━━━━━━━━━┛ │ + │ │ │ + │panning area │ + └───────────────────────┴ ─ ─ ─ ─ ─ ┘ + 'left', 'top', 'width', and 'height' contain the total panning area for this CRTC. 'width' has to be larger than or equal to the CRTC's width or 0, and 'left'+'width' must be within the screen size, else a @@ -1126,13 +1139,35 @@ dynamic changes in the display environment. RRSetScreenSize will silently enable panning if the screen size is increased. This does not happen if set to 0. + ┌────────┳━━━━━━━━━━━━━━┳ ─ ─ ─ ─ ─ ┐ + │ ┃ CRTC ┃ + │ ┃ ┃ │ + │ ┃ ┃ + │ ┃ ┃ │ tracking area + │ ┗━━━━━━━━━━━━━━┫ X + │ ↓ │ ↓ │ + │panning area │ + └───────────────────────┴ ─ ─ ─ ─ ─ ┘ + 'track_left', 'track_top', 'track_width', and 'track_height' contain the pointer area for which the panning region is updated. For normal use cases it should enclose the panning area minus borders, and is typically set to either the panning area minus borders, or to the total screen size. If set to the total screen size, the CRTC will pan in the remaining axis even if the pointer is outside the panning area - on a different CRTC. + on a different CRTC, as shown in the figure above. If the pointer is + outside the tracking area, the CRTC will not pan. + + ┌──┳━━━━━━━━━━━━━━┳────────────┐ + │ ┃ CRTC ┃ │ + │ ┃ ┃ │ + │ ┃ ┃→ │ + │ ┃ X←→┃ │ + │ ┃ border_right │ + │ ┗━━━━━━━━━━━━━━┛ │ + │ │ + │panning area │ + └──────────────────────────────┘ 'border_left', 'border_top', 'border_right', and 'border_bottom' define the distances from the CRTC borders that will activate panning |