summaryrefslogtreecommitdiff
path: root/src/gui/widgets/dropdown.cpp
blob: e838aab663c5ea3a71641a6d72f5c51ff29e04e7 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
/*
 *  The Mana World
 *  Copyright (C) 2006  The Mana World Development Team
 *
 *  This file is part of The Mana World.
 *
 *  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, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include "gui/widgets/dropdown.h"

#include "gui/widgets/listbox.h"
#include "gui/widgets/scrollarea.h"

#include "gui/palette.h"
#include "gui/sdlinput.h"

#include "configuration.h"
#include "graphics.h"

#include "resources/image.h"
#include "resources/resourcemanager.h"

#include "utils/dtor.h"

#include <algorithm>

int DropDown::instances = 0;
Image *DropDown::buttons[2][2];
ImageRect DropDown::skin;
float DropDown::mAlpha = 1.0;

DropDown::DropDown(gcn::ListModel *listModel):
    gcn::DropDown::DropDown(listModel,
                            new ScrollArea,
                            new ListBox(listModel))
{
    setFrameSize(2);

    // Initialize graphics
    if (instances == 0)
    {
        // Load the background skin
        ResourceManager *resman = ResourceManager::getInstance();

        // Get the button skin
        buttons[1][0] =
            resman->getImage("graphics/gui/vscroll_up_default.png");
        buttons[0][0] =
            resman->getImage("graphics/gui/vscroll_down_default.png");
        buttons[1][1] =
            resman->getImage("graphics/gui/vscroll_up_pressed.png");
        buttons[0][1] =
            resman->getImage("graphics/gui/vscroll_down_pressed.png");

        buttons[0][0]->setAlpha(mAlpha);
        buttons[0][1]->setAlpha(mAlpha);
        buttons[1][0]->setAlpha(mAlpha);
        buttons[1][1]->setAlpha(mAlpha);

        // get the border skin
        Image *boxBorder = resman->getImage("graphics/gui/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++)
            {
                skin.grid[a] = boxBorder->getSubImage(gridx[x], gridy[y],
                                                      gridx[x + 1] -
                                                      gridx[x] + 1,
                                                      gridy[y + 1] -
                                                      gridy[y] + 1);
                skin.grid[a]->setAlpha(mAlpha);
                a++;
            }
        }

        boxBorder->decRef();
    }

    instances++;
}

DropDown::~DropDown()
{
    instances--;
    // Free images memory
    if (instances == 0)
    {
        buttons[0][0]->decRef();
        buttons[0][1]->decRef();
        buttons[1][0]->decRef();
        buttons[1][1]->decRef();

        for_each(skin.grid, skin.grid + 9, dtor<Image*>());
    }

    delete mScrollArea;
}

void DropDown::draw(gcn::Graphics* graphics)
{
    int h;

    if (mDroppedDown)
        h = mFoldedUpHeight;
    else
        h = getHeight();

    if (config.getValue("guialpha", 0.8) != mAlpha)
    {
        mAlpha = config.getValue("guialpha", 0.8);

        buttons[0][0]->setAlpha(mAlpha);
        buttons[0][1]->setAlpha(mAlpha);
        buttons[1][0]->setAlpha(mAlpha);
        buttons[1][1]->setAlpha(mAlpha);

        for (int a = 0; a < 9; a++)
        {
            skin.grid[a]->setAlpha(mAlpha);
        }
    }

    const int alpha = (int) (mAlpha * 255.0f);
    gcn::Color faceColor = getBaseColor();
    faceColor.a = alpha;
    const gcn::Color *highlightColor =
            &guiPalette->getColor(Palette::HIGHLIGHT, alpha);
    gcn::Color shadowColor = faceColor - 0x303030;
    shadowColor.a = alpha;

    if (mListBox->getListModel() && mListBox->getSelected() >= 0)
    {
        graphics->setFont(getFont());
        graphics->setColor(guiPalette->getColor(Palette::TEXT));
        graphics->drawText(mListBox->getListModel()->getElementAt(mListBox->getSelected()), 1, 0);
    }

    if (isFocused())
    {
        graphics->setColor(*highlightColor);
        graphics->drawRectangle(gcn::Rectangle(0, 0, getWidth() - h, h));
    }

    drawButton(graphics);

    if (mDroppedDown)
    {
        drawChildren(graphics);

        // Draw two lines separating the ListBox with selected
        // element view.
        graphics->setColor(*highlightColor);
        graphics->drawLine(0, h, getWidth(), h);
        graphics->setColor(shadowColor);
        graphics->drawLine(0, h + 1, getWidth(), h + 1);
    }
}

void DropDown::drawFrame(gcn::Graphics *graphics)
{
    const int bs = getFrameSize();
    const int w = getWidth() + bs * 2;
    const int h = getHeight() + bs * 2;

    static_cast<Graphics*>(graphics)->drawImageRect(0, 0, w, h, skin);
}

void DropDown::drawButton(gcn::Graphics *graphics)
{
    int height = mDroppedDown ? mFoldedUpHeight : getHeight();

    static_cast<Graphics*>(graphics)->
        drawImage(buttons[mDroppedDown][mPushed], getWidth() - height + 2, 1);
}

// -- KeyListener notifications
void DropDown::keyPressed(gcn::KeyEvent& keyEvent)
{
    gcn::Key key = keyEvent.getKey();

    if (key.getValue() == Key::ENTER || key.getValue() == Key::SPACE)
    {
        if (!mDroppedDown)
            dropDown();
        keyEvent.consume();
    }
    else if (key.getValue() == Key::UP)
    {
        setSelected(getSelected() - 1);
        keyEvent.consume();
    }
    else if (key.getValue() == Key::DOWN)
    {
        setSelected(getSelected() + 1);
        keyEvent.consume();
    }
    else if (key.getValue() == Key::HOME)
    {
        setSelected(0);
        keyEvent.consume();
    }
    else if (key.getValue() == Key::END)
    {
        setSelected(mListBox->getListModel()->getNumberOfElements() - 1);
        keyEvent.consume();
    }
}

void DropDown::mouseWheelMovedUp(gcn::MouseEvent& mouseEvent)
{
    setSelected(getSelected() - 1);
    mouseEvent.consume();
}

void DropDown::mouseWheelMovedDown(gcn::MouseEvent& mouseEvent)
{
    setSelected(getSelected() + 1);
    mouseEvent.consume();
}