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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "common/system.h"
#include "common/unicode-bidi.h"
#include "gui/widgets/edittext.h"
#include "gui/gui-manager.h"
#include "gui/ThemeEval.h"
namespace GUI {
EditTextWidget::EditTextWidget(GuiObject *boss, int x, int y, int w, int h, bool scale, const Common::U32String &text, const Common::U32String &tooltip, uint32 cmd, uint32 finishCmd, ThemeEngine::FontStyle font)
: EditableWidget(boss, x, y - 1, w, h + 2, scale, tooltip, cmd) {
setFlags(WIDGET_ENABLED | WIDGET_CLEARBG | WIDGET_RETAIN_FOCUS | WIDGET_WANT_TICKLE);
_type = kEditTextWidget;
_finishCmd = finishCmd;
_leftPadding = _rightPadding = 0;
setEditString(text);
setFontStyle(font);
}
EditTextWidget::EditTextWidget(GuiObject *boss, int x, int y, int w, int h, const Common::U32String &text, const Common::U32String &tooltip, uint32 cmd, uint32 finishCmd, ThemeEngine::FontStyle font)
: EditTextWidget(boss, x, y, w, h, false, text, tooltip, cmd, finishCmd, font) {
}
EditTextWidget::EditTextWidget(GuiObject *boss, const Common::String &name, const Common::U32String &text, const Common::U32String &tooltip, uint32 cmd, uint32 finishCmd, ThemeEngine::FontStyle font)
: EditableWidget(boss, name, tooltip, cmd) {
setFlags(WIDGET_ENABLED | WIDGET_CLEARBG | WIDGET_RETAIN_FOCUS | WIDGET_WANT_TICKLE);
_type = kEditTextWidget;
_finishCmd = finishCmd;
_leftPadding = _rightPadding = 0;
_shiftPressed = _isDragging = false;
setEditString(text);
setFontStyle(font);
}
void EditTextWidget::setEditString(const Common::U32String &str) {
EditableWidget::setEditString(str);
_backupString = str;
}
void EditTextWidget::reflowLayout() {
_leftPadding = g_gui.xmlEval()->getVar("Globals.EditTextWidget.Padding.Left", 0);
_rightPadding = g_gui.xmlEval()->getVar("Globals.EditTextWidget.Padding.Right", 0);
EditableWidget::reflowLayout();
}
void EditTextWidget::drawWidget() {
g_gui.theme()->drawWidgetBackground(Common::Rect(_x, _y, _x + _w, _y + _h),
ThemeEngine::kWidgetBackgroundEditText);
// Draw the text
adjustOffset();
Common::Rect drawRect = getEditRect();
drawRect.translate(_x, _y);
setTextDrawableArea(drawRect);
int x = -_editScrollOffset;
int y = drawRect.top;
int selBegin = _selCaretPos;
int selEnd = _selOffset + _selCaretPos;
if (selBegin > selEnd)
SWAP(selBegin, selEnd);
selBegin = MAX(selBegin, 0);
selEnd = MAX(selEnd, 0);
if (!g_gui.useRTL()) {
Common::UnicodeBiDiText utxt(_editString);
Common::U32String left = Common::U32String(utxt.visual.c_str(), utxt.visual.c_str() + selBegin);
Common::U32String selected = Common::U32String(utxt.visual.c_str() + selBegin, selEnd - selBegin);
Common::U32String right = Common::U32String(utxt.visual.c_str() + selEnd);
Common::U32StringArray parts {left, selected, right};
int scrollOffset = _editScrollOffset;
for (uint i = 0; i < parts.size(); i++) {
if (!parts[i].size())
continue;
Common::U32String part = parts[i];
int partW = g_gui.getStringWidth(part, _font);
int clipL = drawRect.left + (scrollOffset < 0 ? -scrollOffset : 0);
int clipR = MIN(clipL + partW, (int)drawRect.right);
if (x + partW > 0 && x < _w && clipL < drawRect.right) {
int sO = scrollOffset < 0 ? 0 : -scrollOffset;
_inversion = i == 1 ? ThemeEngine::kTextInversionFocus : ThemeEngine::kTextInversionNone;
g_gui.theme()->drawText(Common::Rect(clipL, y, clipR, y + drawRect.height()), part, _state,
_drawAlign, _inversion, sO, false, _font, ThemeEngine::kFontColorNormal,
true, _textDrawableArea);
}
x += partW;
scrollOffset -= partW;
}
} else {
// The above method does not render RTL languages correctly, so fallback to default method
// There are only two possible cases, either the whole string has been selected
// or nothing has been selected.
_inversion = _selOffset ? ThemeEngine::kTextInversionFocus : ThemeEngine::kTextInversionNone;
g_gui.theme()->drawText(drawRect, _editString, _state, _drawAlign, _inversion,
-_editScrollOffset, false, _font, ThemeEngine::kFontColorNormal, true,
_textDrawableArea);
}
EditableWidget::drawWidget();
}
Common::Rect EditTextWidget::getEditRect() const {
// Calculate (right - left) difference for editRect's X-axis coordinates:
// (_w - 1 - _rightPadding) - (2 + _leftPadding)
int editWidth = _w - _rightPadding - _leftPadding - 3;
int editHeight = _h - 2;
// Ensure r will always be a valid rect
if (editWidth < 0) {
editWidth = 0;
}
if (editHeight < 0) {
editHeight = 0;
}
Common::Rect r(2 + _leftPadding, 1, 2 + _leftPadding + editWidth, 1 + editHeight);
return r;
}
void EditTextWidget::receivedFocusWidget() {
g_system->setFeatureState(OSystem::kFeatureVirtualKeyboard, true);
}
void EditTextWidget::lostFocusWidget() {
// If we lose focus, 'commit' the user changes and clear selection
_backupString = _editString;
drawCaret(true);
clearSelection();
g_system->setFeatureState(OSystem::kFeatureVirtualKeyboard, false);
}
void EditTextWidget::startEditMode() {
}
void EditTextWidget::endEditMode() {
releaseFocus();
sendCommand(_finishCmd, 0);
}
void EditTextWidget::abortEditMode() {
setEditString(_backupString);
sendCommand(_cmd, 0);
releaseFocus();
}
} // End of namespace GUI
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