mirror of
https://github.com/cookiengineer/audacity
synced 2026-02-16 15:57:52 +01:00
Locate and position the current Audacity source code, and clear a variety of old junk out of the way into junk-branches
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src/HistoryWindow.cpp
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src/HistoryWindow.cpp
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/**********************************************************************
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Audacity: A Digital Audio Editor
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HistoryWindow.cpp
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Joshua Haberman
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Leland Lucius
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*******************************************************************//*!
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\class HistoryWindow
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\brief Works with UndoManager to allow user to see descriptions of
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and undo previous commands. Also allows you to selectively clear the
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undo memory so as to free up space.
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*//*******************************************************************/
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#include "Audacity.h"
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#include <wx/defs.h>
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#include <wx/button.h>
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#include <wx/dialog.h>
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#include <wx/event.h>
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#include <wx/imaglist.h>
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#include <wx/intl.h>
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#include <wx/listctrl.h>
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#include <wx/settings.h>
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#include <wx/stattext.h>
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#include <wx/textctrl.h>
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#include "../images/Arrow.xpm"
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#include "HistoryWindow.h"
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#include "UndoManager.h"
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#include "Project.h"
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#include "ShuttleGui.h"
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enum {
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ID_AVAIL = 1000,
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ID_LEVELS,
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ID_DISCARD
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};
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BEGIN_EVENT_TABLE(HistoryWindow, wxDialog)
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EVT_SHOW(HistoryWindow::OnShow)
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EVT_SIZE(HistoryWindow::OnSize)
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EVT_CLOSE(HistoryWindow::OnCloseWindow)
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EVT_LIST_ITEM_SELECTED(wxID_ANY, HistoryWindow::OnItemSelected)
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EVT_BUTTON(ID_DISCARD, HistoryWindow::OnDiscard)
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END_EVENT_TABLE()
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HistoryWindow::HistoryWindow(AudacityProject *parent, UndoManager *manager):
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wxDialog((wxWindow*)parent, wxID_ANY, wxString(_("Undo History")),
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wxDefaultPosition, wxDefaultSize,
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wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER )
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{
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mManager = manager;
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mProject = parent;
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mSelected = 0;
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wxImageList *imageList = new wxImageList(9, 16);
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imageList->Add(wxIcon(empty_9x16_xpm));
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imageList->Add(wxIcon(arrow_xpm));
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//------------------------- Main section --------------------
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// Construct the GUI.
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ShuttleGui S(this, eIsCreating);
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S.SetBorder(5);
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S.StartVerticalLay(true);
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{
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S.StartStatic(_("Manage History"), 1);
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{
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mList = S.AddListControlReportMode();
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// Do this BEFORE inserting the columns. On the Mac at least, the
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// columns are deleted and later InsertItem()s will cause Audacity to crash.
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mList->SetSingleStyle(wxLC_SINGLE_SEL);
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mList->InsertColumn(0, _("Action"), wxLIST_FORMAT_LEFT, 300);
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mList->InsertColumn(1, _("Size"), wxLIST_FORMAT_LEFT, 65);
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//Assign rather than set the image list, so that it is deleted later.
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mList->AssignImageList(imageList, wxIMAGE_LIST_SMALL);
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S.StartMultiColumn(3, wxCENTRE);
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{
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mAvail = S.Id(ID_AVAIL).AddTextBox(_("&Undo Levels Available"), wxT("0"), 10);
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mAvail->Connect(wxEVT_KEY_DOWN, wxKeyEventHandler(HistoryWindow::OnChar));
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S.AddVariableText(wxT(""))->Hide();
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}
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{
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S.AddPrompt(_("Levels To Discard"));
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mLevels = new wxSpinCtrl(this,
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ID_LEVELS,
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wxT("1"),
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wxDefaultPosition,
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wxDefaultSize,
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wxSP_ARROW_KEYS,
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1,
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mManager->GetCurrentState() - 1,
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1);
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S.AddWindow(mLevels);
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mDiscard = S.Id(ID_DISCARD).AddButton(_("&Discard"));
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}
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S.EndMultiColumn();
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}
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S.EndStatic();
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S.StartHorizontalLay(wxALIGN_BOTTOM | wxALIGN_RIGHT, false);
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{
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S.SetBorder(10);
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S.Id(wxID_OK).AddButton(_("&OK"))->SetDefault();
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}
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S.EndHorizontalLay();
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}
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S.EndVerticalLay();
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// ----------------------- End of main section --------------
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DoUpdate();
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mList->SetMinSize(mList->GetSize());
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Fit();
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SetMinSize(GetSize());
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mList->SetColumnWidth(0, mList->GetClientSize().x - mList->GetColumnWidth(1));
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mList->SetTextColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT));
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}
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HistoryWindow::~HistoryWindow()
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{
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mAvail->Disconnect(wxEVT_KEY_DOWN, wxKeyEventHandler(HistoryWindow::OnChar));
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}
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void HistoryWindow::UpdateDisplay()
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{
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if(IsShown())
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DoUpdate();
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}
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void HistoryWindow::DoUpdate()
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{
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int i;
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mList->DeleteAllItems();
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mSelected = mManager->GetCurrentState() - 1;
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for (i = 0; i < (int)mManager->GetNumStates(); i++) {
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wxString desc, size;
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mManager->GetLongDescription(i + 1, &desc, &size);
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mList->InsertItem(i, desc, i == mSelected ? 1 : 0);
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mList->SetItem(i, 1, size);
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}
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mList->EnsureVisible(mSelected);
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mList->SetItemState(mSelected,
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wxLIST_STATE_FOCUSED | wxLIST_STATE_SELECTED,
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wxLIST_STATE_FOCUSED | wxLIST_STATE_SELECTED);
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UpdateLevels();
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}
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void HistoryWindow::UpdateLevels()
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{
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wxWindow *focus;
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int value = mLevels->GetValue();
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if (value > mSelected) {
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value = mSelected;
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}
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if (value == 0) {
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value = 1;
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}
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mLevels->SetValue(value);
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mLevels->SetRange(1, mSelected);
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mAvail->SetValue(wxString::Format(wxT("%d"), mSelected));
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focus = FindFocus();
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if ((focus == mDiscard || focus == mLevels) && mSelected == 0) {
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mList->SetFocus();
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}
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mLevels->Enable(mSelected > 0);
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mDiscard->Enable(mSelected > 0);
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}
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void HistoryWindow::OnDiscard(wxCommandEvent &event)
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{
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int i = mLevels->GetValue();
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mSelected -= i;
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mManager->RemoveStates(i);
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mProject->SetStateTo(mSelected + 1);
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while(--i >= 0)
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mList->DeleteItem(i);
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UpdateLevels();
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}
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void HistoryWindow::OnItemSelected(wxListEvent &event)
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{
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int selected = event.GetIndex();
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int i;
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for (i = 0; i < mList->GetItemCount(); i++) {
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mList->SetItemImage(i, 0);
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if (i > selected)
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mList->SetItemTextColour(i, *wxLIGHT_GREY);
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else
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mList->SetItemTextColour(i, mList->GetTextColour());
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}
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mList->SetItemImage(selected, 1);
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// Do not do a SetStateTo() if we're not actually changing the selected
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// entry. Doing so can cause unnecessary delays upon initial load or while
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// clicking the same entry over and over.
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if (selected != mSelected) {
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mProject->SetStateTo(selected + 1);
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}
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mSelected = selected;
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UpdateLevels();
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}
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void HistoryWindow::OnCloseWindow(wxCloseEvent & WXUNUSED(event))
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{
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this->Show(false);
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}
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void HistoryWindow::OnSize(wxSizeEvent & event)
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{
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Layout();
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mList->SetColumnWidth(0, mList->GetClientSize().x - mList->GetColumnWidth(1));
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mList->EnsureVisible(mSelected);
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}
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void HistoryWindow::OnShow(wxShowEvent & event)
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{
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if (event.GetShow())
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UpdateDisplay();
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}
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void HistoryWindow::OnChar(wxKeyEvent &event)
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{
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event.Skip(false);
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return;
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}
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// Indentation settings for Vim and Emacs and unique identifier for Arch, a
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// version control system. Please do not modify past this point.
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//
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// Local Variables:
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// c-basic-offset: 3
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// indent-tabs-mode: nil
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// End:
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//
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// vim: et sts=3 sw=3
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// arch-tag: a32dc48c-50da-4cda-90a6-b5aa4fd7673e
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