Aegisub/aegisub/idle_field_event.cpp

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// Copyright (c) 2006, Rodrigo Braz Monteiro
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
// * Neither the name of the Aegisub Group nor the names of its contributors
// may be used to endorse or promote products derived from this software
// without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// -----------------------------------------------------------------------------
//
// AEGISUB
//
// Website: http://aegisub.cellosoft.com
// Contact: mailto:zeratul@cellosoft.com
//
///////////
// Headers
#include "idle_field_event.h"
#include <wx/event.h>
#include <wx/settings.h>
///////////////
// Constructor
IdleFieldHandler::IdleFieldHandler(wxWindow *_control,wxString _name) {
control = _control;
name = _name;
overriden = false;
locked = false;
text = NULL;
box = NULL;
// Set colours
original = control->GetForegroundColour();
grey = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT);
wxColour bg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW);
grey = wxColour((grey.Red() + bg.Red()) / 2,(grey.Green() + bg.Green()) / 2,(grey.Blue() + bg.Blue()) / 2);
// wxTextCtrl
if (control->IsKindOf(CLASSINFO(wxTextCtrl))) {
text = (wxTextCtrl*) control;
Connect(text->GetId(),wxEVT_COMMAND_TEXT_UPDATED,wxCommandEventHandler(IdleFieldHandler::OnChange));
}
// wxComboBox
else if (control->IsKindOf(CLASSINFO(wxComboBox))) {
box = (wxComboBox*) control;
Connect(box->GetId(),wxEVT_COMMAND_TEXT_UPDATED,wxCommandEventHandler(IdleFieldHandler::OnChange));
Connect(box->GetId(),wxEVT_COMMAND_COMBOBOX_SELECTED,wxCommandEventHandler(IdleFieldHandler::OnChange));
}
KillFocus();
}
///////////////
// Event table
BEGIN_EVENT_TABLE(IdleFieldHandler,wxEvtHandler)
EVT_SET_FOCUS(IdleFieldHandler::OnSetFocus)
EVT_KILL_FOCUS(IdleFieldHandler::OnKillFocus)
END_EVENT_TABLE()
///////////////////
// Get Focus event
void IdleFieldHandler::OnSetFocus(wxFocusEvent &event) {
SetFocus();
event.Skip();
}
///////////////////
// Lose Focus event
void IdleFieldHandler::OnKillFocus(wxFocusEvent &event) {
KillFocus();
event.Skip();
}
/////////////
// Get focus
void IdleFieldHandler::SetFocus() {
if (overriden) {
// Prepare
locked = true;
control->Freeze();
control->SetForegroundColour(original);
// Text
if (text) text->SetValue(_T(""));
// Box
if (box) box->SetValue(_T(""));
// Finish
overriden = false;
locked = false;
control->Thaw();
}
}
//////////////
// Lose Focus
void IdleFieldHandler::KillFocus() {
bool modify = false;
if (text && text->GetValue().IsEmpty() || box && box->GetValue().IsEmpty()) modify = true;
if (modify) {
// Prepare
locked = true;
control->Freeze();
control->SetForegroundColour(grey);
// Text
if (text) text->SetValue(name);
// Box
if (box) box->SetValue(name);
// Finish
overriden = true;
locked = false;
control->Thaw();
}
}
//////////////////////////
// Parent control changed
void IdleFieldHandler::OnChange(wxCommandEvent &event) {
if (locked) return;
overriden = false;
control->SetForegroundColour(original);
if (wxWindow::FindFocus() != control) {
wxFocusEvent focus(wxEVT_KILL_FOCUS,control->GetId());
focus.SetEventObject(control);
AddPendingEvent(focus);
}
event.Skip();
}