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authorAndrei Karas <akaras@inbox.ru>2011-01-02 01:48:38 +0200
committerAndrei Karas <akaras@inbox.ru>2011-01-02 02:41:24 +0200
commit3eeae12c498d1a4dbe969462d2ba841f77ee3ccb (patch)
treeff8eab35e732bc0749fc11677c8873a7b3a58704 /src/gui/widgets/table.cpp
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Initial commit.
This code based on mana client http://www.gitorious.org/mana/mana and my private repository.
Diffstat (limited to 'src/gui/widgets/table.cpp')
-rw-r--r--src/gui/widgets/table.cpp585
1 files changed, 585 insertions, 0 deletions
diff --git a/src/gui/widgets/table.cpp b/src/gui/widgets/table.cpp
new file mode 100644
index 000000000..39ef719ef
--- /dev/null
+++ b/src/gui/widgets/table.cpp
@@ -0,0 +1,585 @@
+/*
+ * The Mana Client
+ * Copyright (C) 2008-2009 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/table.h"
+
+#include "client.h"
+#include "configuration.h"
+
+#include "gui/sdlinput.h"
+#include "gui/theme.h"
+
+#include "utils/dtor.h"
+
+#include <guichan/actionlistener.hpp>
+#include <guichan/graphics.hpp>
+#include <guichan/key.hpp>
+
+float GuiTable::mAlpha = 1.0;
+
+class GuiTableActionListener : public gcn::ActionListener
+{
+public:
+ GuiTableActionListener(GuiTable *_table, gcn::Widget *_widget,
+ int _row, int _column);
+
+ virtual ~GuiTableActionListener();
+
+ virtual void action(const gcn::ActionEvent& actionEvent);
+
+protected:
+ GuiTable *mTable;
+ int mRow;
+ int mColumn;
+ gcn::Widget *mWidget;
+};
+
+
+GuiTableActionListener::GuiTableActionListener(GuiTable *table,
+ gcn::Widget *widget, int row,
+ int column) :
+ mTable(table),
+ mRow(row),
+ mColumn(column),
+ mWidget(widget)
+{
+ if (widget)
+ {
+ widget->addActionListener(this);
+ widget->_setParent(table);
+ }
+}
+
+GuiTableActionListener::~GuiTableActionListener()
+{
+ if (mWidget)
+ {
+ mWidget->removeActionListener(this);
+ mWidget->_setParent(NULL);
+ }
+}
+
+void GuiTableActionListener::action(const gcn::ActionEvent
+ &actionEvent _UNUSED_)
+{
+ mTable->setSelected(mRow, mColumn);
+ mTable->distributeActionEvent();
+}
+
+
+GuiTable::GuiTable(TableModel *initial_model, gcn::Color background,
+ bool opacity) :
+ mLinewiseMode(false),
+ mWrappingEnabled(false),
+ mOpaque(opacity),
+ mBackgroundColor(background),
+ mModel(NULL),
+ mSelectedRow(0),
+ mSelectedColumn(0),
+ mTopWidget(NULL)
+{
+ setModel(initial_model);
+ setFocusable(true);
+
+ addMouseListener(this);
+ addKeyListener(this);
+}
+
+GuiTable::~GuiTable()
+{
+ uninstallActionListeners();
+ delete mModel;
+ mModel = 0;
+}
+
+TableModel *GuiTable::getModel() const
+{
+ return mModel;
+}
+
+void GuiTable::setModel(TableModel *new_model)
+{
+ if (mModel)
+ {
+ uninstallActionListeners();
+ mModel->removeListener(this);
+ }
+
+ mModel = new_model;
+ installActionListeners();
+
+ if (new_model)
+ {
+ new_model->installListener(this);
+ recomputeDimensions();
+ }
+}
+
+void GuiTable::recomputeDimensions()
+{
+ if (!mModel)
+ return;
+
+ int rows_nr = mModel->getRows();
+ int columns_nr = mModel->getColumns();
+ int width = 0;
+ int height = 0;
+
+ if (mSelectedRow >= rows_nr)
+ mSelectedRow = rows_nr - 1;
+
+ if (mSelectedColumn >= columns_nr)
+ mSelectedColumn = columns_nr - 1;
+
+ for (int i = 0; i < columns_nr; i++)
+ width += getColumnWidth(i);
+
+ height = getRowHeight() * rows_nr;
+
+ setWidth(width);
+ setHeight(height);
+}
+
+void GuiTable::setSelected(int row, int column)
+{
+ mSelectedColumn = column;
+ mSelectedRow = row;
+}
+
+int GuiTable::getSelectedRow() const
+{
+ return mSelectedRow;
+}
+
+int GuiTable::getSelectedColumn() const
+{
+ return mSelectedColumn;
+}
+
+void GuiTable::setLinewiseSelection(bool linewise)
+{
+ mLinewiseMode = linewise;
+}
+
+int GuiTable::getRowHeight() const
+{
+ if (mModel)
+ return mModel->getRowHeight() + 1; // border
+ else
+ return 0;
+}
+
+int GuiTable::getColumnWidth(int i) const
+{
+ if (mModel)
+ return mModel->getColumnWidth(i) + 1; // border
+ else
+ return 0;
+}
+
+void GuiTable::setSelectedRow(int selected)
+{
+ if (!mModel)
+ {
+ mSelectedRow = -1;
+ }
+ else
+ {
+ if (selected < 0 && !mWrappingEnabled)
+ {
+ mSelectedRow = -1;
+ }
+ else if (selected >= mModel->getRows() && mWrappingEnabled)
+ {
+ mSelectedRow = 0;
+ }
+ else if ((selected >= mModel->getRows() && !mWrappingEnabled) ||
+ (selected < 0 && mWrappingEnabled))
+ {
+ mSelectedRow = mModel->getRows() - 1;
+ }
+ else
+ {
+ mSelectedRow = selected;
+ }
+ }
+}
+
+void GuiTable::setSelectedColumn(int selected)
+{
+ if (!mModel)
+ {
+ mSelectedColumn = -1;
+ }
+ else
+ {
+ if ((selected >= mModel->getColumns() && mWrappingEnabled) ||
+ (selected < 0 && !mWrappingEnabled))
+ {
+ mSelectedColumn = 0;
+ }
+ else if ((selected >= mModel->getColumns() && !mWrappingEnabled) ||
+ (selected < 0 && mWrappingEnabled))
+ {
+ mSelectedColumn = mModel->getColumns() - 1;
+ }
+ else
+ {
+ mSelectedColumn = selected;
+ }
+ }
+}
+
+void GuiTable::uninstallActionListeners()
+{
+ delete_all(mActionListeners);
+ mActionListeners.clear();
+}
+
+void GuiTable::installActionListeners()
+{
+ if (!mModel)
+ return;
+
+ int rows = mModel->getRows();
+ int columns = mModel->getColumns();
+
+ for (int row = 0; row < rows; ++row)
+ {
+ for (int column = 0; column < columns; ++column)
+ {
+ gcn::Widget *widget = mModel->getElementAt(row, column);
+ if (widget)
+ {
+ mActionListeners.push_back(new GuiTableActionListener(
+ this, widget, row, column));
+ }
+ }
+ }
+
+ _setFocusHandler(_getFocusHandler()); // propagate focus handler to widgets
+}
+
+// -- widget ops
+void GuiTable::draw(gcn::Graphics* graphics)
+{
+ if (!mModel || !getRowHeight())
+ return;
+
+ if (Client::getGuiAlpha() != mAlpha)
+ mAlpha = Client::getGuiAlpha();
+
+ if (mOpaque)
+ {
+ graphics->setColor(Theme::getThemeColor(Theme::BACKGROUND,
+ static_cast<int>(mAlpha * 255.0f)));
+ graphics->fillRectangle(gcn::Rectangle(0, 0, getWidth(), getHeight()));
+ }
+
+ // First, determine how many rows we need to draw, and where we should start.
+ int first_row = -(getY() / getRowHeight());
+
+ if (first_row < 0)
+ first_row = 0;
+
+ int rows_nr = 1 + (getHeight() / getRowHeight()); // May overestimate
+ // by one.
+
+ int max_rows_nr = mModel->getRows() - first_row; // clip if neccessary:
+ if (max_rows_nr < rows_nr)
+ rows_nr = max_rows_nr;
+
+ // Now determine the first and last column
+ // Take the easy way out; these are usually bounded and all visible.
+ int first_column = 0;
+ int last_column1 = mModel->getColumns();
+
+ // Set up everything for drawing
+ int height = getRowHeight();
+ int y_offset = first_row * height;
+
+ for (int r = first_row; r < first_row + rows_nr; ++r)
+ {
+ int x_offset = 0;
+
+ for (int c = first_column; c + 1 <= last_column1; ++c)
+ {
+ gcn::Widget *widget = mModel->getElementAt(r, c);
+ int width = getColumnWidth(c);
+ if (widget)
+ {
+ gcn::Rectangle bounds(x_offset, y_offset, width, height);
+
+ if (widget == mTopWidget)
+ {
+ bounds.height = widget->getHeight();
+ bounds.width = widget->getWidth();
+ }
+
+ widget->setDimension(bounds);
+
+ graphics->setColor(Theme::getThemeColor(Theme::HIGHLIGHT,
+ static_cast<int>(mAlpha * 255.0f)));
+
+ if (mLinewiseMode && r == mSelectedRow && c == 0)
+ {
+ graphics->fillRectangle(gcn::Rectangle(0, y_offset,
+ getWidth(), height));
+ }
+ else if (!mLinewiseMode &&
+ c == mSelectedColumn && r == mSelectedRow)
+ {
+ graphics->fillRectangle(gcn::Rectangle(x_offset, y_offset,
+ width, height));
+ }
+
+ graphics->pushClipArea(bounds);
+ widget->draw(graphics);
+ graphics->popClipArea();
+ }
+
+ x_offset += width;
+ }
+
+ y_offset += height;
+ }
+
+ if (mTopWidget)
+ {
+ gcn::Rectangle bounds = mTopWidget->getDimension();
+ graphics->pushClipArea(bounds);
+ mTopWidget->draw(graphics);
+ graphics->popClipArea();
+ }
+}
+
+void GuiTable::moveToTop(gcn::Widget *widget)
+{
+ gcn::Widget::moveToTop(widget);
+ mTopWidget = widget;
+}
+
+void GuiTable::moveToBottom(gcn::Widget *widget)
+{
+ gcn::Widget::moveToBottom(widget);
+ if (widget == mTopWidget)
+ mTopWidget = NULL;
+}
+
+gcn::Rectangle GuiTable::getChildrenArea() const
+{
+ return gcn::Rectangle(0, 0, getWidth(), getHeight());
+}
+
+// -- KeyListener notifications
+void GuiTable::keyPressed(gcn::KeyEvent& keyEvent)
+{
+ gcn::Key key = keyEvent.getKey();
+
+ if (key.getValue() == Key::ENTER || key.getValue() == Key::SPACE)
+ {
+ distributeActionEvent();
+ keyEvent.consume();
+ }
+ else if (key.getValue() == Key::UP)
+ {
+ setSelectedRow(mSelectedRow - 1);
+ keyEvent.consume();
+ }
+ else if (key.getValue() == Key::DOWN)
+ {
+ setSelectedRow(mSelectedRow + 1);
+ keyEvent.consume();
+ }
+ else if (key.getValue() == Key::LEFT)
+ {
+ setSelectedColumn(mSelectedColumn - 1);
+ keyEvent.consume();
+ }
+ else if (key.getValue() == Key::RIGHT)
+ {
+ setSelectedColumn(mSelectedColumn + 1);
+ keyEvent.consume();
+ }
+ else if (key.getValue() == Key::HOME)
+ {
+ setSelectedRow(0);
+ setSelectedColumn(0);
+ keyEvent.consume();
+ }
+ else if (key.getValue() == Key::END && mModel)
+ {
+ setSelectedRow(mModel->getRows() - 1);
+ setSelectedColumn(mModel->getColumns() - 1);
+ keyEvent.consume();
+ }
+}
+
+// -- MouseListener notifications
+void GuiTable::mousePressed(gcn::MouseEvent& mouseEvent)
+{
+ if (!mModel)
+ return;
+
+ if (mouseEvent.getButton() == gcn::MouseEvent::LEFT)
+ {
+ int row = getRowForY(mouseEvent.getY());
+ int column = getColumnForX(mouseEvent.getX());
+
+ if (row > -1 && column > -1 &&
+ row < mModel->getRows() && column < mModel->getColumns())
+ {
+ mSelectedColumn = column;
+ mSelectedRow = row;
+ }
+
+ distributeActionEvent();
+ }
+}
+
+void GuiTable::mouseWheelMovedUp(gcn::MouseEvent& mouseEvent)
+{
+ if (isFocused())
+ {
+ if (getSelectedRow() > 0 || (getSelectedRow() == 0
+ && mWrappingEnabled))
+ {
+ setSelectedRow(getSelectedRow() - 1);
+ }
+
+ mouseEvent.consume();
+ }
+}
+
+void GuiTable::mouseWheelMovedDown(gcn::MouseEvent& mouseEvent)
+{
+ if (isFocused())
+ {
+ setSelectedRow(getSelectedRow() + 1);
+
+ mouseEvent.consume();
+ }
+}
+
+void GuiTable::mouseDragged(gcn::MouseEvent& mouseEvent)
+{
+ if (mouseEvent.getButton() != gcn::MouseEvent::LEFT)
+ return;
+
+ // Make table selection update on drag
+ const int x = std::max(0, mouseEvent.getX());
+ const int y = std::max(0, mouseEvent.getY());
+
+ setSelectedRow(getRowForY(y));
+ setSelectedColumn(getColumnForX(x));
+}
+
+// -- TableModelListener notifications
+void GuiTable::modelUpdated(bool completed)
+{
+ if (completed)
+ {
+ recomputeDimensions();
+ installActionListeners();
+ }
+ else
+ { // before the update?
+ mTopWidget = NULL; // No longer valid in general
+ uninstallActionListeners();
+ }
+}
+
+gcn::Widget *GuiTable::getWidgetAt(int x, int y) const
+{
+ int row = getRowForY(y);
+ int column = getColumnForX(x);
+
+ if (mTopWidget && mTopWidget->getDimension().isPointInRect(x, y))
+ return mTopWidget;
+
+ if (mModel && row > -1 && column > -1)
+ {
+ gcn::Widget *w = mModel->getElementAt(row, column);
+ if (w && w->isFocusable())
+ return w;
+ else
+ return NULL; // Grab the event locally
+ }
+ else
+ return NULL;
+}
+
+int GuiTable::getRowForY(int y) const
+{
+ int row = -1;
+
+ if (getRowHeight() > 0)
+ row = y / getRowHeight();
+
+ if (!mModel || row < 0 || row >= mModel->getRows())
+ return -1;
+ else
+ return row;
+}
+
+int GuiTable::getColumnForX(int x) const
+{
+ if (!mModel)
+ return -1;
+
+ int column;
+ int delta = 0;
+
+ for (column = 0; column < mModel->getColumns(); column++)
+ {
+ delta += getColumnWidth(column);
+ if (x <= delta)
+ break;
+ }
+
+ if (column < 0 || column >= mModel->getColumns())
+ return -1;
+ else
+ return column;
+}
+
+void GuiTable::_setFocusHandler(gcn::FocusHandler* focusHandler)
+{
+// add check for focusHandler. may be need remove it?
+
+ if (!mModel || !focusHandler)
+ return;
+
+ gcn::Widget::_setFocusHandler(focusHandler);
+
+ if (mModel)
+ {
+ for (int r = 0; r < mModel->getRows(); ++r)
+ {
+ for (int c = 0; c < mModel->getColumns(); ++c)
+ {
+ gcn::Widget *w = mModel->getElementAt(r, c);
+ if (w)
+ w->_setFocusHandler(focusHandler);
+ }
+ }
+ }
+}