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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/button.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/button.cpp')
-rw-r--r--src/gui/widgets/button.cpp227
1 files changed, 227 insertions, 0 deletions
diff --git a/src/gui/widgets/button.cpp b/src/gui/widgets/button.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/button.h"
+
+#include "client.h"
+#include "configuration.h"
+#include "graphics.h"
+#include "log.h"
+
+#include "gui/palette.h"
+#include "gui/theme.h"
+
+#include "resources/image.h"
+
+#include "utils/dtor.h"
+
+#include <guichan/exception.hpp>
+#include <guichan/font.hpp>
+
+int Button::mInstances = 0;
+float Button::mAlpha = 1.0;
+
+enum
+{
+ BUTTON_STANDARD = 0, // 0
+ BUTTON_HIGHLIGHTED, // 1
+ BUTTON_PRESSED, // 2
+ BUTTON_DISABLED, // 3
+ BUTTON_COUNT // 4 - Must be last.
+};
+
+struct ButtonData
+{
+ char const *file;
+ int gridX;
+ int gridY;
+};
+
+static ButtonData const data[BUTTON_COUNT] =
+{
+ { "button.png", 0, 0 },
+ { "buttonhi.png", 9, 4 },
+ { "buttonpress.png", 16, 19 },
+ { "button_disabled.png", 25, 23 }
+};
+
+ImageRect Button::button[BUTTON_COUNT];
+
+Button::Button():
+ mDescription(""), mClickCount(0)
+{
+ init();
+}
+
+Button::Button(const std::string &caption, const std::string &actionEventId,
+ gcn::ActionListener *listener):
+ gcn::Button(caption),
+ mDescription(""), mClickCount(0)
+{
+ init();
+ setActionEventId(actionEventId);
+
+ if (listener)
+ addActionListener(listener);
+}
+
+void Button::init()
+{
+ setFrameSize(0);
+
+ if (mInstances == 0)
+ {
+ // Load the skin
+ Image *btn[BUTTON_COUNT];
+
+ int a, x, y, mode;
+
+ for (mode = 0; mode < BUTTON_COUNT; mode++)
+ {
+ btn[mode] = Theme::getImageFromTheme(data[mode].file);
+ if (!btn[mode])
+ continue;
+
+ a = 0;
+ for (y = 0; y < 3; y++)
+ {
+ for (x = 0; x < 3; x++)
+ {
+ button[mode].grid[a] = btn[mode]->getSubImage(
+ data[x].gridX, data[y].gridY,
+ data[x + 1].gridX - data[x].gridX + 1,
+ data[y + 1].gridY - data[y].gridY + 1);
+ a++;
+ }
+ }
+ if (btn[mode])
+ btn[mode]->decRef();
+ }
+ updateAlpha();
+ }
+ mInstances++;
+}
+
+Button::~Button()
+{
+ mInstances--;
+
+ if (mInstances == 0)
+ {
+ for (int mode = 0; mode < BUTTON_COUNT; mode++)
+ {
+ if (button[mode].grid)
+ {
+ for_each(button[mode].grid,
+ button[mode].grid + 9, dtor<Image*>());
+ }
+ }
+ }
+}
+
+void Button::updateAlpha()
+{
+ float alpha = std::max(Client::getGuiAlpha(),
+ Theme::instance()->getMinimumOpacity());
+
+ if (mAlpha != alpha)
+ {
+ mAlpha = alpha;
+ for (int a = 0; a < 9; a++)
+ {
+ if (button[BUTTON_DISABLED].grid[a])
+ button[BUTTON_DISABLED].grid[a]->setAlpha(mAlpha);
+ if (button[BUTTON_PRESSED].grid[a])
+ button[BUTTON_PRESSED].grid[a]->setAlpha(mAlpha);
+ if (button[BUTTON_HIGHLIGHTED].grid[a])
+ button[BUTTON_HIGHLIGHTED].grid[a]->setAlpha(mAlpha);
+ if (button[BUTTON_STANDARD].grid[a])
+ button[BUTTON_STANDARD].grid[a]->setAlpha(mAlpha);
+ }
+ }
+}
+
+void Button::draw(gcn::Graphics *graphics)
+{
+ int mode;
+
+ if (!isEnabled())
+ mode = BUTTON_DISABLED;
+ else if (isPressed())
+ mode = BUTTON_PRESSED;
+ else if (mHasMouse || isFocused())
+ mode = BUTTON_HIGHLIGHTED;
+ else
+ mode = BUTTON_STANDARD;
+
+ updateAlpha();
+
+ static_cast<Graphics*>(graphics)->
+ drawImageRect(0, 0, getWidth(), getHeight(), button[mode]);
+
+ if (mode == BUTTON_DISABLED)
+ graphics->setColor(Theme::getThemeColor(Theme::BUTTON_DISABLED));
+ else
+ graphics->setColor(Theme::getThemeColor(Theme::BUTTON));
+
+ int textX;
+ int textY = getHeight() / 2 - getFont()->getHeight() / 2;
+
+ switch (getAlignment())
+ {
+ default:
+ case gcn::Graphics::LEFT:
+ textX = 4;
+ break;
+ case gcn::Graphics::CENTER:
+ textX = getWidth() / 2;
+ break;
+ case gcn::Graphics::RIGHT:
+ textX = getWidth() - 4;
+ break;
+// throw GCN_EXCEPTION("Button::draw. Unknown alignment.");
+ }
+
+ graphics->setFont(getFont());
+
+ if (isPressed())
+ graphics->drawText(getCaption(), textX + 1, textY + 1, getAlignment());
+ else
+ graphics->drawText(getCaption(), textX, textY, getAlignment());
+}
+
+void Button::mouseReleased(gcn::MouseEvent& mouseEvent)
+{
+ if (mouseEvent.getButton() == gcn::MouseEvent::LEFT
+ && mMousePressed && mHasMouse)
+ {
+ mMousePressed = false;
+ mClickCount = mouseEvent.getClickCount();
+ distributeActionEvent();
+ mouseEvent.consume();
+ }
+ else if (mouseEvent.getButton() == gcn::MouseEvent::LEFT)
+ {
+ mMousePressed = false;
+ mClickCount = 0;
+ mouseEvent.consume();
+ }
+}