#include "stage/timeline/timeline-layout.hpp"

Description

Top-level anchor point for the timeline display (widgets).

The central entity to organise concerns relevant for the presentation of the Timeline as a whole, as opposed to rendering individual tracks as part of the Timeline.

Definition at line 109 of file timeline-layout.hpp.

Public Member Functions
	TimelineLayout (Gtk::Paned &)

Gtk::WidgetPath	getBodyWidgetPath () const

void	installRootTrack (TrackHeadWidget &, TrackBody &)
	This function is invoked once for each new TimelineWidget, in order to build the starting point for the track widget structure, which then can be extended recursively to add further nested tracks. More...

void	setupStructure (LayoutElement &)

Public Member Functions inherited from ZoomMetric< DisplayManager >
TimeValue	applyScreenDelta (Time anchor, double deltaPx) const override

TimeSpan	coveredTime () const override

int	translateScreenDelta (Offset timeOffset) const override

int	translateTimeToPixels (TimeValue startTimePoint) const override

Public Member Functions inherited from LayoutElement
virtual	~LayoutElement ()
	this is an interface

Protected Member Functions
void	completeLayout (DisplayEvaluation &) override

void	establishLayout (DisplayEvaluation &) override
	TimelineLayout also participates itself in the DisplayEvaluation, notably to set up the basic parameters for Zoom management.

model::ViewHook< TrackBody > &	getBodyHook () override

model::CanvasHook< Gtk::Widget > &	getClipHook () override

model::ViewHook< TrackHeadWidget > &	getHeadHook () override

void	hook (TrackHeadWidget &) override

void	hook (TrackBody &) override

void	rehook (TrackHeadWidget &) noexcept override

void	rehook (TrackBody &) noexcept override

void	remove (TrackHeadWidget &) override

void	remove (TrackBody &) override

void	triggerDisplayEvaluation () override
	Perform a complete recursive pass over all elements relevant for layout, reestablish size allocation and negotiate distribution of available space. More...

Protected Member Functions inherited from ViewHook< TrackHeadWidget >
virtual	~ViewHook ()
	this is an interface

virtual void	hook (TrackHeadWidget &widget)=0

virtual void	rehook (TrackHeadWidget &widget) noexcept=0

virtual void	remove (TrackHeadWidget &widget)=0

void	reOrder (IT newOrder)
	re-attach elements in a given, new order. More...

Protected Member Functions inherited from ViewHook< TrackBody >
virtual	~ViewHook ()
	this is an interface

virtual void	hook (TrackBody &widget)=0

virtual void	rehook (TrackBody &widget) noexcept=0

virtual void	remove (TrackBody &widget)=0

void	reOrder (IT newOrder)
	re-attach elements in a given, new order. More...

Protected Member Functions inherited from LayoutElement
virtual	~LayoutElement ()
	this is an interface

Private Member Functions
void	sizeZoomWindow (Gtk::Allocation &)
	Signal receiver (slot) to react on changes of the window screen space allocation. More...

void	syncZoomWindow (PAdjustment)
	Signal receiver (slot) to react on scrollbar changes. More...

Private Attributes
BodyCanvasWidget	bodyCanvas_

DisplayEvaluation	displayEvaluation_

HeaderPaneWidget	headerPane_

Glib::PropertyProxy< int >	paneSplitPosition_

Additional Inherited Members
Protected Attributes inherited from ZoomMetric< DisplayManager >
ZoomWindow	zoomWindow_

Member Function Documentation

◆ installRootTrack()

void installRootTrack	(	TrackHeadWidget &	head,
		TrackBody &	body
	)

This function is invoked once for each new TimelineWidget, in order to build the starting point for the track widget structure, which then can be extended recursively to add further nested tracks.

anchor the display of the root track into the two display panes

The central problem for this widget hierarchy is that we have to build two matching structures in parallel...

the track header area ("patchbay")
the corresponding track body with actual content (clips)

Definition at line 83 of file timeline-layout.cpp.

◆ setupStructure()

void setupStructure ( LayoutElement & forkRoot )

Remarks: wiring of the Layout/Control structure for DisplayEvaluation can be done only after the TimelineCtonroller ctor also initialised the model root

Definition at line 98 of file timeline-layout.cpp.

◆ triggerDisplayEvaluation()

void triggerDisplayEvaluation ( )

overrideprotected

Perform a complete recursive pass over all elements relevant for layout, reestablish size allocation and negotiate distribution of available space.

Remarks: this is the entry point to the so called display evaluation pass.

Definition at line 120 of file timeline-layout.cpp.

◆ syncZoomWindow()

void syncZoomWindow ( PAdjustment hadj )

private

Signal receiver (slot) to react on scrollbar changes.

Changes the logical window position in the ZoomWindow to reflect the given #scrollPos, which is interpreted relative to the implicitly known size of the timeline canvas in pixels.

Remarks: changes to ZoomWindow parameters cause notification of the listener, thereby triggering a new DisplayEvaluation; this in turn will invoke TimelineLayout::establishLayout() eventually, accommodating changes.

Definition at line 153 of file timeline-layout.cpp.

◆ sizeZoomWindow()

void sizeZoomWindow ( Gtk::Allocation & alloc )

private

Signal receiver (slot) to react on changes of the window screen space allocation.

Whenever an actual change to the usable window width in pixels is detected, the ZoomWindow will be re-calibrated, in turn leading to a DisplayEvaluation.

Definition at line 166 of file timeline-layout.cpp.

Inheritance diagram for TimelineLayout:

Collaboration diagram for TimelineLayout:

The documentation for this class was generated from the following files:

Description

Public Member Functions

Protected Member Functions

Private Member Functions