CMake/Source/CursesDialog/cmCursesStringWidget.cxx

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/*============================================================================
CMake - Cross Platform Makefile Generator
Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
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Distributed under the OSI-approved BSD License (the "License");
see accompanying file Copyright.txt for details.
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This software is distributed WITHOUT ANY WARRANTY; without even the
implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the License for more information.
============================================================================*/
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#include "cmCursesStringWidget.h"
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#include "cmCursesMainForm.h"
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inline int ctrl(int z)
{
return (z & 037);
}
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cmCursesStringWidget::cmCursesStringWidget(int width, int height, int left,
int top)
: cmCursesWidget(width, height, left, top)
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{
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this->InEdit = false;
this->Type = cmState::STRING;
set_field_fore(this->Field, A_NORMAL);
set_field_back(this->Field, A_STANDOUT);
field_opts_off(this->Field, O_STATIC);
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}
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void cmCursesStringWidget::OnTab(cmCursesMainForm*, WINDOW*)
{
// FORM* form = fm->GetForm();
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}
void cmCursesStringWidget::OnReturn(cmCursesMainForm* fm, WINDOW*)
{
FORM* form = fm->GetForm();
if (this->InEdit) {
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cmCursesForm::LogMessage("String widget leaving edit.");
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this->InEdit = false;
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fm->PrintKeys();
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delete[] this->OriginalString;
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// trick to force forms to update the field buffer
form_driver(form, REQ_NEXT_FIELD);
form_driver(form, REQ_PREV_FIELD);
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this->Done = true;
} else {
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cmCursesForm::LogMessage("String widget entering edit.");
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this->InEdit = true;
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fm->PrintKeys();
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char* buf = field_buffer(this->Field, 0);
this->OriginalString = new char[strlen(buf) + 1];
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strcpy(this->OriginalString, buf);
}
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}
void cmCursesStringWidget::OnType(int& key, cmCursesMainForm* fm, WINDOW*)
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{
form_driver(fm->GetForm(), key);
}
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bool cmCursesStringWidget::HandleInput(int& key, cmCursesMainForm* fm,
WINDOW* w)
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{
int x, y;
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FORM* form = fm->GetForm();
// when not in edit mode, edit mode is entered by pressing enter or i (vim
// binding)
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// 10 == enter
if (!this->InEdit && (key != 10 && key != KEY_ENTER && key != 'i')) {
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return false;
}
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this->OriginalString = CM_NULLPTR;
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this->Done = false;
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char debugMessage[128];
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// <Enter> is used to change edit mode (like <Esc> in vi).
while (!this->Done) {
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sprintf(debugMessage, "String widget handling input, key: %d", key);
cmCursesForm::LogMessage(debugMessage);
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fm->PrintKeys();
getmaxyx(stdscr, y, x);
// If window too small, handle 'q' only
if (x < cmCursesMainForm::MIN_WIDTH || y < cmCursesMainForm::MIN_HEIGHT) {
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// quit
if (key == 'q') {
return false;
} else {
key = getch();
continue;
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}
}
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// If resize occurred during edit, move out of edit mode
if (!this->InEdit && (key != 10 && key != KEY_ENTER && key != 'i')) {
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return false;
}
// enter edit with return and i (vim binding)
if (!this->InEdit && (key == 10 || key == KEY_ENTER || key == 'i')) {
this->OnReturn(fm, w);
}
// leave edit with return (but not i -- not a toggle)
else if (this->InEdit && (key == 10 || key == KEY_ENTER)) {
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this->OnReturn(fm, w);
} else if (key == KEY_DOWN || key == ctrl('n') || key == KEY_UP ||
key == ctrl('p') || key == KEY_NPAGE || key == ctrl('d') ||
key == KEY_PPAGE || key == ctrl('u')) {
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this->InEdit = false;
delete[] this->OriginalString;
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// trick to force forms to update the field buffer
form_driver(form, REQ_NEXT_FIELD);
form_driver(form, REQ_PREV_FIELD);
return false;
}
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// esc
else if (key == 27) {
if (this->InEdit) {
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this->InEdit = false;
fm->PrintKeys();
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this->SetString(this->OriginalString);
delete[] this->OriginalString;
touchwin(w);
wrefresh(w);
return true;
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}
} else if (key == 9) {
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this->OnTab(fm, w);
} else if (key == KEY_LEFT || key == ctrl('b')) {
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form_driver(form, REQ_PREV_CHAR);
} else if (key == KEY_RIGHT || key == ctrl('f')) {
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form_driver(form, REQ_NEXT_CHAR);
} else if (key == ctrl('k')) {
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form_driver(form, REQ_CLR_EOL);
} else if (key == ctrl('a') || key == KEY_HOME) {
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form_driver(form, REQ_BEG_FIELD);
} else if (key == ctrl('e') || key == KEY_END) {
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form_driver(form, REQ_END_FIELD);
} else if (key == 127 || key == KEY_BACKSPACE) {
FIELD* cur = current_field(form);
form_driver(form, REQ_DEL_PREV);
if (current_field(form) != cur) {
set_current_field(form, cur);
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}
} else if (key == ctrl('d') || key == KEY_DC) {
form_driver(form, REQ_DEL_CHAR);
} else {
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this->OnType(key, fm, w);
}
if (!this->Done) {
touchwin(w);
wrefresh(w);
key = getch();
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}
}
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return true;
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}
void cmCursesStringWidget::SetString(const std::string& value)
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{
this->SetValue(value);
}
const char* cmCursesStringWidget::GetString()
{
return this->GetValue();
}
const char* cmCursesStringWidget::GetValue()
{
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return field_buffer(this->Field, 0);
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}
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bool cmCursesStringWidget::PrintKeys()
{
int x, y;
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getmaxyx(stdscr, y, x);
if (x < cmCursesMainForm::MIN_WIDTH || y < cmCursesMainForm::MIN_HEIGHT) {
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return false;
}
if (this->InEdit) {
char fmt_s[] = "%s";
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char firstLine[512];
// Clean the toolbar
for (int i = 0; i < 512; i++) {
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firstLine[i] = ' ';
}
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firstLine[511] = '\0';
curses_move(y - 4, 0);
printw(fmt_s, firstLine);
curses_move(y - 3, 0);
printw(fmt_s, firstLine);
curses_move(y - 2, 0);
printw(fmt_s, firstLine);
curses_move(y - 1, 0);
printw(fmt_s, firstLine);
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curses_move(y - 3, 0);
printw(fmt_s, "Editing option, press [enter] to leave edit.");
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return true;
} else {
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return false;
}
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}