Mercurial > pyntnclick

annotate pyntnclick/widgets/text.py @ 813:3a875256f795 pyntnclick

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better visible handling
author Neil Muller <neil@dip.sun.ac.za>
date Sun, 27 Jan 2013 17:33:04 +0200
parents bcc9277a23e6
children 9f542ef6e498
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rev   line source
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diff changeset
1 from textwrap import wrap
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2
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3 import pygame
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4 from pygame.constants import SRCALPHA
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5
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6 from pyntnclick.widgets.base import Widget, Button, convert_color
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7
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8
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9 class TextWidget(Widget):
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10 def __init__(self, pos, gd, text, size=None, fontname=None, fontsize=None,
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11 color=None):
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12 super(TextWidget, self).__init__(pos, gd, size)
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13 self.text = text
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14 constants = self.gd.constants
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15 self.fontname = fontname or constants.font
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16 self.fontsize = fontsize or constants.font_size
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17 self.color = color or constants.text_color
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18
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19 def prepare(self):
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20 self.font = self.resource.get_font(self.fontname, self.fontsize)
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21 self.color = convert_color(self.color)
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22 self.surface = self.font.render(self.text, True, self.color)
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23 self.text_rect = self.surface.get_rect()
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24 if not self.size:
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25 self.rect.size = self.text_rect.size
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26
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27 def draw(self, surface):
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28 if self.visible:
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29 self.do_prepare()
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30 surface.blit(self.surface, self.rect)
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32
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33 class LabelWidget(TextWidget):
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34 def __init__(self, pos, gd, *args, **kwargs):
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35 constants = gd.constants
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36 self.padding = kwargs.pop('padding', constants.label_padding)
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37 self.border = kwargs.pop('border', constants.label_border)
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38 self.bg_color = convert_color(
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39 kwargs.pop('bg_color', constants.label_bg_color))
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40 self.border_color = convert_color(
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41 kwargs.pop('border_color', constants.label_border_color))
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42 super(LabelWidget, self).__init__(pos, gd, *args, **kwargs)
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43
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44 def prepare(self):
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45 super(LabelWidget, self).prepare()
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46 if not self.size:
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47 self.rect.width += 2 * self.padding
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48 self.rect.height += 2 * self.padding
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49 new_surface = pygame.Surface(self.rect.size)
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50 new_surface = new_surface.convert_alpha()
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51 new_surface.fill(self.bg_color)
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52 new_surface.blit(self.surface, self.surface.get_rect().move(
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53 (self.padding, self.padding)))
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54 if self.border:
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55 pygame.draw.rect(new_surface, self.border_color,
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56 new_surface.get_rect(),
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57 self.border)
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58 self.surface = new_surface
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59
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60 def draw(self, surface):
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61 if self.visible:
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62 self.do_prepare()
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63 surface.blit(self.surface, self.rect)
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64
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65
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66 class TextButton(Button, TextWidget):
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67 def __init__(self, pos, gd, *args, **kwargs):
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68 constants = gd.constants
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69 self.padding = kwargs.pop('padding', constants.label_padding)
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70 self.border = kwargs.pop('border', constants.label_border)
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71
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72 kwargs['color'] = convert_color(
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73 kwargs.pop('color', constants.button_color))
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74 self.disabled_color = convert_color(
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75 kwargs.pop('disabled_color', constants.button_disabled_color))
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76 self.bg_color = convert_color(
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77 kwargs.pop('bg_color', constants.button_bg_color))
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78
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79 super(TextButton, self).__init__(pos, gd, *args, **kwargs)
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80
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81 def prepare(self):
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82 super(TextButton, self).prepare()
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83 text = self.surface
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84 text_rect = self.text_rect
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85 color = self.disabled_color if self.disabled else self.color
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86
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87 width = text_rect.width + self.padding * 2
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88 height = text_rect.height + self.padding * 2
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89 if not self.size:
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90 self.rect.width = max(self.rect.width, width)
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91 self.rect.height = max(self.rect.height, height)
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92 self.surface = pygame.Surface(self.rect.size, SRCALPHA)
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93 self.surface.fill(self.bg_color)
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94 offset = (
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95 (self.rect.width - width) / 2 + self.padding,
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96 (self.rect.height - height) / 2 + self.padding)
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97 self.surface.blit(text, text.get_rect().move(offset))
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98
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99 if self.border:
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100 pygame.draw.rect(self.surface, color, self.surface.get_rect(),
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101 self.border)
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102
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103 def draw(self, surface):
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104 super(TextButton, self).draw(surface)
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105
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106
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107 class WrappedTextLabel(LabelWidget):
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108 """A Label Widget that wraps the text to a given maximum width"""
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109
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110 def __init__(self, pos, gd, *args, **kwargs):
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111 self.max_width = kwargs.pop('max_width', gd.constants.screen[0] - 50)
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112 self._wrap_width = None
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113 self._text_lines = None
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114 super(WrappedTextLabel, self).__init__(pos, gd, *args, **kwargs)
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115
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116 def prepare(self):
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117 if self._wrap_width is None:
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118 # Start without wrapping
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119 self._wrap_width = len(self.text) + 1
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120 self._text_lines = [self.text]
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121
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122 self.font = self.resource.get_font(self.fontname, self.fontsize)
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123 self.color = convert_color(self.color)
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124 self._render()
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125 self.text_rect = self.surface.get_rect()
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126 width, height = self.surface.get_rect().size
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127 while width > self.max_width:
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128 # Very simplistic approach
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129 self._wrap_width = self._wrap_width / 2
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130 self._text_lines = wrap(self.text, self._wrap_width)
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131 self._render()
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132 width, height = self.surface.get_rect().size
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133 if not self.size:
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134 self.rect.width = max(self.rect.width, width)
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135 self.rect.height = max(self.rect.height, height)
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136
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137 if self.border:
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138 pygame.draw.rect(self.surface, self.border_color,
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139 self.surface.get_rect(),
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140 self.border)
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141
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142 def _render(self):
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143 surfaces = []
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144 width = 0
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145 height = 0
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146 for line in self._text_lines:
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147 line_surf = self.font.render(line, True, self.color)
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148 surfaces.append(line_surf)
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149 width = max(line_surf.get_rect().width, width)
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150 height += line_surf.get_rect().height
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151
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152 width += 2 * self.padding
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153 height += 2 * self.padding
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154
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155 self.surface = pygame.Surface((width, height))
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156 self.surface = self.surface.convert_alpha()
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157 self.surface.fill(self.bg_color)
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158 height = self.padding
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159 for line_surf in surfaces:
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160 rect = pygame.Rect((self.padding, height),
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161 (line_surf.get_rect().size))
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162 self.surface.blit(line_surf, rect)
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163 height += line_surf.get_rect().height