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Commit Graph

100 Commits

Author SHA1 Message Date
b8ec035b24 _single_exposure is now a member variable for each GtkCanvas.
Gtk coalesces multiple exposes into a single combined rect.
If _single_exposure is disabled, we break apart the individual expose rects for the canvas rendering.
2015-02-12 11:35:35 -06:00
c679d616f6 correct drawing of rectangle borders.
They need to use fractional coordinates, and the border position needed
generalizing for other border widths. See verbose comment for details
2015-02-09 16:41:28 -05:00
b4a0136155 tweak to help with uncoalesced renders 2015-02-03 17:35:37 -06:00
9fab39358a render canvas using the GDK region rather than the GDK area.
The region is the un-coalesced set of rectangles that were requested for redraw. The area
is the coalesced single rectangle. In the worst cases, the coalesced rectangle could span
the entire window even though just two pixels in opposite corners were to be redrawn.

There is a problem with the verbose cursor as it is dragged across MIDI tracks. TO BE
FIXED.
2015-02-03 15:38:14 -05:00
e84e1f7403 ScrollGroups are kept in their own list, so ::window_to_canvas() does not need to inspect root group children to find them
Conflicts:
	libs/canvas/canvas.cc
2015-01-24 18:48:15 -05:00
b759fd5879 Put playhead on top of everything.
Achieve this by adding a new hscroll group just for cursors.

That requires a slightly smarter window_to_canvas() to deal with overlapping
sensitive scroll groups.  New rule is that scroll groups can overlap, but the
most sensitive one found from the top down will be chosen to translate
coordinates.  This basically means don't overlap scroll groups with different
sensitivities.

In the presence of scroll groups, having a canvas-wide window_to_canvas()
and/or canvas_to_window() fundamentally makes no sense.  At some point in the
glorious future we should kill those and use only item-relative coordinate
translation.
2015-01-16 19:13:56 -05:00
55278fb3b0 Fix mouse event position offset bug.
Search scroll groups for event delivery from top to bottom rather than bottom
to top.  Overlapping scroll groups still aren't properly supported by the
canvas, but currently all we care about is that the top one gets the event, so
the hscroll group (tempo lines) can be below the hvscroll group (tracks), but
the latter gets events.
2015-01-12 01:05:01 -05:00
2558e52e22 Fix alleged use of uninitialized variable.
Looks like a guaranteed else branch to me, but who am I to argue with gcc?
2014-12-31 17:32:21 -05:00
333c776e0e Fix MIDI region keyboard editing (add key handling to canvas). 2014-11-15 02:04:28 -05:00
9a9a8f78ef fix define 2014-11-13 19:05:58 +01:00
12b715e6fa tweak canvas on_expose_event() handler to avoid unnecessary save/paint/restore 2014-11-10 20:34:20 -05:00
1317b57221 add required header for compilation 2014-11-10 11:46:17 -05:00
ef56948d4a add background color property to Canvas::Canvas ; rearrange expose handling and include background fill
Conflicts:
	libs/canvas/canvas.cc
	libs/canvas/canvas/canvas.h
2014-11-10 10:43:25 -05:00
0fedfab593 tentative fix for canvas background/image surface 2014-11-07 16:50:21 +01:00
b04414d170 allow to use cairo-image/software surface for canvas & cairowidgets 2014-10-28 02:15:10 +01:00
6dc3a4bf61 remove unused old API 2014-10-28 01:27:14 +01:00
1bde96be09 there's no random() on window, but no matter 2014-09-30 19:08:16 +02:00
b4438942ca fix compiler warning from missing default statement in switch 2014-09-27 18:09:22 -04:00
2a53154892 end tooltip timeout and display for relevant leave notify events 2014-09-26 17:06:38 -04:00
df5a188825 further tweaks to canvas tooltip mechanism 2014-09-26 12:24:47 -04:00
bb68d83e43 display and position canvas tooltip window 2014-09-26 11:05:24 -04:00
d0dafc171c basic design of Canvas item tooltip mechanism.
No window yet to actually display the tooltip.
2014-09-25 21:43:15 -04:00
5044feec95 more canvas debugging for current item tracing 2014-07-18 10:43:52 -04:00
a1bc2cb10e fix potential crash if certain Canvas methods are used before its window is realized 2014-07-07 08:00:20 -04:00
69a92e67f0 Add Canvas::re_enter() which picks the current item again based on mouse pointer position and generates an enter event for it 2014-07-07 07:53:17 -04:00
d816c225a4 more extensive canvas debug message for canvas-enter-leave tracing 2014-06-30 16:32:01 -04:00
cf075743e4 additional DEBUG_TRACE message for canvas current item selection 2014-06-30 08:32:26 -04:00
a0cb2f95f0 if CANVAS_DEBUG is defined, then the env variable CANVAS_HARLEQUIN_DEBUGGING will turn on drawing the expose areas for canvas render debugging 2014-06-27 10:27:04 -04:00
6cc673f0a6 in Canvas::window_to_canvas(), if either x or y coordinate is less than zero, search for the scroll group on the relevant edge.
If we don't do this then we find no scroll group covering the event coordinate, and the translation for scroll fails to be applied
2014-06-27 10:19:21 -04:00
3accf1d2af new API for TrackingText and similar items 2014-06-26 15:10:24 -04:00
663f9827f9 last piece of scroll-wheel checkin, oops 2014-06-24 10:46:53 -05:00
2cc25a9d79 add scroll wheel handler to canvas 2014-06-24 10:33:28 -05:00
99f9b3456a explicitly qualify cast to ArdourCanvas::Container so that it works.
I assume that gcc is failing to complain about ambiguity with Gtk::Container even though there should
really be no ambiguity
2014-06-22 09:29:16 -04:00
a8bd6ecc4f refactor Canvas so that all Items have children; add Container abstract base class; rename Group as "Layout" and retain only drawing semantics 2014-06-21 11:43:42 -04:00
36a34dc1a4 Merge branch 'canvas_tweaks' of https://github.com/nmains/ardour into cairocanvas 2014-06-18 11:20:10 -04:00
becf857f48 a whole slew of changes related to centralizing and rationalizing cursor management.
Debugging output left in place to help address the reports that will come in as people test this more
2014-06-18 10:24:59 -04:00
nick_m
0bd17ed2e4 Canvas tweaks.
* Only queue a draw for changed items that are set visible and in-window.
2014-06-19 00:06:32 +10:00
f98e0a0707 use a different approach for indicating expose rects (from robin gareus). #ifdef'd out by default 2014-06-17 11:34:54 -04:00
8050712503 comment correction regarding Canvas::visible_area() 2014-06-15 12:18:47 -04:00
f0c18abf55 remove global canvas scroll offset, to provide no-scroll-parent == no-scroll behaviour 2014-06-09 08:39:48 -04:00
5e281d3b44 when delivering enter/leave events to canvas items, ensure that the event coordinates are in canvas space, not window space
This fixes a variety of borkage in the canvas at present
2014-06-08 11:26:32 -04:00
ef9bf58359 fix problems with expose/redraws from canvas where requested area goes way outside the integer range allowed by GTK/GDK 2014-06-05 14:42:46 -04:00
e0533e9dd7 more profound changes to canvas scrolling, in particular find appropriate ScrollGroup for Canvas::{window,canvas}_to_{canvas,window}() 2014-06-03 16:13:12 -04:00
d4989ed9ce fix missing leftover Canvas::pick_current_item() which was confusing button release event coordinates 2014-06-03 16:12:00 -04:00
073df89c4d use window-based coordinates when picking current item so that we get per-item (per-scroll-group,really) computation of position and coverage. 2014-06-03 16:12:00 -04:00
54a56cd3c6 various changes to get independent scrolling to work better in canvas. mostly tweaks relating to how scroll offsets are used during rendering.
Event handling offsets still require work.
2014-06-03 16:12:00 -04:00
c9f890bd7c avoid recursing through the entire canvas when scrolling - only scroll explicitly identified ScrollGroups 2014-06-03 16:10:27 -04:00
6019f06bdf different approach to independent scrolling, involving ArdourCanvas::ScrollGroup
The idea now is that a scroll group item can be added to the canvas which will causes its children to scroll in either or both
directions (horizontal or vertical). There are few complications: the position() of the ScrollGroup is ambiguous depending
on whether you want it with scroll taken into account or not, so Item::canvas_position() was added, which defaults to
the same value as Item::position() but is overridden by ScrollGroup to return the position independent of scrolling. This
method is used when translating between item/canvas/window coordinate systems.

Note that the basic idea is that we MOVE the scroll group when a scroll happens. This mirrors what happens in the GnomeCanvas,
where Nick Mainsbridge came up with a great idea that allowed unification of the time bar and track canvases.
2014-06-03 16:10:27 -04:00
97109672c7 initial redesign of canvas scrolling to facilitate independent x- and y-axis scrolling of specific groups within the canvas.
This commit should cause no change in behaviour, but contains all the code and changes necessary
for the next step
2014-06-03 16:09:06 -04:00
fed5599baa smooth visual curve drawing 2014-05-30 03:04:02 +02:00