summaryrefslogtreecommitdiff
path: root/src/FbTk/TextButton.cc
blob: 9a16c2cc44d842c8a1b7bbdb3e6b1d110df6ad8e (plain)
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
// TextButton.cc for Fluxbox Window Manager
// Copyright (c) 2003 - 2005 Henrik Kinnunen (fluxgen at fluxbox dot org)
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.

// $Id$

#include "TextButton.hh"
#include "Font.hh"
#include "GContext.hh"

namespace FbTk {

TextButton::TextButton(const FbTk::FbWindow &parent,
                       const FbTk::Font &font,
                       const std::string &text):
    FbTk::Button(parent, 0, 0, 10, 10),
    m_font(&font),
    m_text(text),
    m_justify(FbTk::LEFT), m_bevel(1),
    m_left_padding(0),
    m_right_padding(0) {
    setRenderer(*this);

}

void TextButton::resize(unsigned int width, unsigned int height) {
    if (this->width() == width && height == this->height())
        return;

    Button::resize(width, height);
}

void TextButton::moveResize(int x, int y,
                            unsigned int width, unsigned int height) {
    if (this->width() == width && height == this->height() &&
        x == this->x() && y == this->y())
        return;

    Button::moveResize(x, y, width, height);
}

void TextButton::setJustify(FbTk::Justify just) {
    m_justify = just;
}

void TextButton::setText(const std::string &text) {
    if (m_text != text) {
        m_text = text;
        parentMoved();
        clear();
    }
}

void TextButton::setFont(const FbTk::Font &font) {
    // no need to set new font if it's the same
    if (&font == m_font)
        return;
    m_font = &font;
}

/// set bevel and redraw text
void TextButton::setBevel(int bevel) {
    if (m_bevel == bevel)
        return;
    m_bevel = bevel;
}

void TextButton::setTextPaddingLeft(unsigned int leftpadding) {
    m_left_padding = leftpadding;
}

void TextButton::setTextPaddingRight(unsigned int rightpadding) {
    m_right_padding = rightpadding;
}

void TextButton::setTextPadding(unsigned int padding) {
    setTextPaddingLeft(padding/2);
    setTextPaddingRight(padding/2);
}

/// clear window and redraw text
void TextButton::clear() {
    TextButton::clearArea(0, 0,
                          width(), height());
}

void TextButton::clearArea(int x, int y,
                           unsigned int width, unsigned int height,
                           bool exposure) {
    Button::clearArea(x, y, width, height, exposure);
    if (backgroundPixmap() == ParentRelative) 
        drawText(0, 0, this);
}

unsigned int TextButton::textWidth() const {
    return font().textWidth(text().c_str(), text().size());
}

void TextButton::renderForeground(FbWindow &win, FbDrawable &drawable) {
    // (win should always be *this, no need to check)
    drawText(0, 0, &drawable);
}

void TextButton::drawText(int x_offset, int y_offset, FbDrawable *drawable) {
    unsigned int textlen = text().size();
    // do text alignment

    int align_x = FbTk::doAlignment(width() - x_offset - m_left_padding - m_right_padding,
                                    bevel(),
                                    justify(),
                                    font(),
                                    text().c_str(), text().size(),
                                    textlen); // return new text lne

    // center text by default
    int center_pos = height()/2 + font().ascent()/2 - 1;

    if (drawable == 0)
        drawable = this;

    font().drawText(*drawable,
                    screenNumber(),
                    gc(), // graphic context
                    text().c_str(), textlen, // string and string size
                    align_x + x_offset + m_left_padding, center_pos + y_offset); // position
    
}

void TextButton::exposeEvent(XExposeEvent &event) {
    clearArea(event.x, event.y, event.width, event.height, false);
}

}; // end namespace FbTk