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-rw-r--r--src/gui/widgets/textfield.cpp306
1 files changed, 306 insertions, 0 deletions
diff --git a/src/gui/widgets/textfield.cpp b/src/gui/widgets/textfield.cpp
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+/*
+ * The Mana Client
+ * Copyright (C) 2004-2009 The Mana World Development Team
+ * Copyright (C) 2009-2010 The Mana Developers
+ *
+ * This file is part of The Mana Client.
+ *
+ * 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 2 of the License, or
+ * 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 "gui/widgets/textfield.h"
+
+#include "client.h"
+#include "configuration.h"
+#include "graphics.h"
+#include "log.h"
+
+#include "gui/palette.h"
+#include "gui/sdlinput.h"
+#include "gui/theme.h"
+
+#include "resources/image.h"
+
+#include "utils/copynpaste.h"
+#include "utils/dtor.h"
+
+#include <guichan/font.hpp>
+
+#undef DELETE //Win32 compatibility hack
+
+int TextField::instances = 0;
+float TextField::mAlpha = 1.0;
+ImageRect TextField::skin;
+
+TextField::TextField(const std::string &text, bool loseFocusOnTab,
+ gcn::ActionListener* listener, std::string eventId):
+ gcn::TextField(text),
+ mNumeric(false)
+{
+ setFrameSize(2);
+
+ mLoseFocusOnTab = loseFocusOnTab;
+
+ if (instances == 0)
+ {
+ // Load the skin
+ Image *textbox = Theme::getImageFromTheme("deepbox.png");
+ int gridx[4] = {0, 3, 28, 31};
+ int gridy[4] = {0, 3, 28, 31};
+ int a = 0, x, y;
+
+ for (y = 0; y < 3; y++)
+ {
+ for (x = 0; x < 3; x++)
+ {
+ if (textbox)
+ {
+ skin.grid[a] = textbox->getSubImage(
+ gridx[x], gridy[y],
+ gridx[x + 1] - gridx[x] + 1,
+ gridy[y + 1] - gridy[y] + 1);
+ if (skin.grid[a])
+ skin.grid[a]->setAlpha(Client::getGuiAlpha());
+ }
+ else
+ {
+ skin.grid[a] = 0;
+ }
+ a++;
+ }
+ }
+
+ if (textbox)
+ textbox->decRef();
+ }
+
+ instances++;
+
+ if (!eventId.empty())
+ setActionEventId(eventId);
+
+ if (listener)
+ addActionListener(listener);
+}
+
+TextField::~TextField()
+{
+ instances--;
+
+ if (instances == 0)
+ for_each(skin.grid, skin.grid + 9, dtor<Image*>());
+}
+
+void TextField::updateAlpha()
+{
+ float alpha = std::max(Client::getGuiAlpha(),
+ Theme::instance()->getMinimumOpacity());
+
+ if (alpha != mAlpha)
+ {
+ mAlpha = alpha;
+ for (int a = 0; a < 9; a++)
+ {
+ if (skin.grid[a])
+ skin.grid[a]->setAlpha(mAlpha);
+ }
+ }
+}
+
+void TextField::draw(gcn::Graphics *graphics)
+{
+ updateAlpha();
+
+ if (isFocused())
+ {
+ drawCaret(graphics,
+ getFont()->getWidth(mText.substr(0, mCaretPosition)) -
+ mXScroll);
+ }
+
+ graphics->setColor(Theme::getThemeColor(Theme::TEXT));
+ graphics->setFont(getFont());
+ graphics->drawText(mText, 1 - mXScroll, 1);
+}
+
+void TextField::drawFrame(gcn::Graphics *graphics)
+{
+ //updateAlpha(); -> Not useful...
+
+ int w, h, bs;
+ bs = getFrameSize();
+ w = getWidth() + bs * 2;
+ h = getHeight() + bs * 2;
+
+ static_cast<Graphics*>(graphics)->drawImageRect(0, 0, w, h, skin);
+}
+
+void TextField::setNumeric(bool numeric)
+{
+ mNumeric = numeric;
+ if (!numeric)
+ return;
+
+ const char *text = mText.c_str();
+ for (const char *textPtr = text; *textPtr; ++textPtr)
+ {
+ if (*textPtr < '0' || *textPtr > '9')
+ {
+ setText(mText.substr(0, textPtr - text));
+ return;
+ }
+ }
+}
+
+int TextField::getValue() const
+{
+ if (!mNumeric)
+ return 0;
+
+ int value = atoi(mText.c_str());
+ if (value < mMinimum)
+ return mMinimum;
+
+ if (value > mMaximum)
+ return mMaximum;
+
+ return value;
+}
+
+void TextField::keyPressed(gcn::KeyEvent &keyEvent)
+{
+ int val = keyEvent.getKey().getValue();
+
+ if (val >= 32)
+ {
+ int l;
+ if (val < 128)
+ l = 1; // 0xxxxxxx
+ else if (val < 0x800)
+ l = 2; // 110xxxxx 10xxxxxx
+ else if (val < 0x10000)
+ l = 3; // 1110xxxx 10xxxxxx 10xxxxxx
+ else
+ l = 4; // 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
+
+ char buf[4];
+ for (int i = 0; i < l; ++i)
+ {
+ buf[i] = static_cast<char>(val >> (6 * (l - i - 1)));
+ if (i > 0)
+ buf[i] = static_cast<char>((buf[i] & 63) | 128);
+ }
+
+ if (l > 1)
+ buf[0] |= static_cast<char>(255 << (8 - l));
+
+ mText.insert(mCaretPosition, std::string(buf, buf + l));
+ mCaretPosition += l;
+ }
+
+ /* In UTF-8, 10xxxxxx is only used for inner parts of characters. So skip
+ them when processing key presses. */
+
+ switch (val)
+ {
+ case Key::LEFT:
+ {
+ while (mCaretPosition > 0)
+ {
+ --mCaretPosition;
+ if ((mText[mCaretPosition] & 192) != 128)
+ break;
+ }
+ } break;
+
+ case Key::RIGHT:
+ {
+ unsigned sz = static_cast<unsigned>(mText.size());
+ while (mCaretPosition < sz)
+ {
+ ++mCaretPosition;
+ if (mCaretPosition == sz ||
+ (mText[mCaretPosition] & 192) != 128)
+ {
+ break;
+ }
+ }
+ } break;
+
+ case Key::DELETE:
+ {
+ unsigned sz = static_cast<unsigned>(mText.size());
+ while (mCaretPosition < sz)
+ {
+ --sz;
+ mText.erase(mCaretPosition, 1);
+ if (mCaretPosition == sz ||
+ (mText[mCaretPosition] & 192) != 128)
+ {
+ break;
+ }
+ }
+ } break;
+
+ case Key::BACKSPACE:
+ {
+ while (mCaretPosition > 0)
+ {
+ --mCaretPosition;
+ int v = mText[mCaretPosition];
+ mText.erase(mCaretPosition, 1);
+ if ((v & 192) != 128)
+ break;
+ }
+ } break;
+
+ case Key::ENTER:
+ distributeActionEvent();
+ break;
+
+ case Key::HOME:
+ mCaretPosition = 0;
+ break;
+
+ case Key::END:
+ mCaretPosition = static_cast<unsigned>(mText.size());
+ break;
+
+ case Key::TAB:
+ if (mLoseFocusOnTab)
+ return;
+ break;
+
+ case 22: // Control code 22, SYNCHRONOUS IDLE, sent on Ctrl+v
+ handlePaste();
+ break;
+ default:
+ break;
+ }
+
+ keyEvent.consume();
+ fixScroll();
+}
+
+void TextField::handlePaste()
+{
+ std::string text = getText();
+ std::string::size_type caretPos = getCaretPosition();
+
+ if (RetrieveBuffer(text, caretPos))
+ {
+ setText(text);
+ setCaretPosition(static_cast<unsigned>(caretPos));
+ }
+}