Mercurial > sypikslang
annotate gamelib/gui_base.py @ 236:ce1e23ea46e5
added generic background for all windows
| author | Rizmari Versfeld <rizziepit@gmail.com> |
|---|---|
| date | Sun, 13 May 2012 00:17:07 +0200 |
| parents | 16ce5ed563c9 |
| children | 05afa7ae5df3 |
| rev | line source |
|---|---|
| 37 | 1 import pygame |
| 70 | 2 from pygame.locals import SRCALPHA |
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3 from pygame import Surface, Rect |
| 37 | 4 from pygame.font import Font |
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5 from pygame import image |
| 37 | 6 |
| 7 from gamelib import data | |
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8 from gamelib.data import filepath |
| 37 | 9 |
| 10 | |
| 11 # different font sizes | |
| 12 pygame.font.init() | |
| 13 font_small = Font(data.filepath('fonts/DejaVuSans.ttf'), 10) | |
| 14 font_medium = Font(data.filepath('fonts/DejaVuSans.ttf'), 14) | |
| 15 font_large = Font(data.filepath('fonts/DejaVuSans.ttf'), 18) | |
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16 font_auto = None |
| 37 | 17 |
| 18 | |
| 19 class Drawable(object): | |
| 38 | 20 |
| 21 def __init__(self, rect): | |
| 22 if isinstance(rect, Rect): | |
| 23 self.rect = rect | |
| 24 else: | |
| 25 self.rect = Rect(rect[0], rect[1], rect[2], rect[3]) | |
| 26 | |
| 27 def draw(self, surface): | |
| 28 pass | |
| 29 | |
| 30 | |
| 37 | 31 class Clickable(object): |
| 38 | 32 |
| 33 def on_mouse_down(self, pos): | |
| 34 pass | |
| 35 | |
| 36 def on_mouse_up(self, pos): | |
| 37 pass | |
| 38 | |
| 39 def on_mouse_move(self, pos): | |
| 40 pass | |
| 41 | |
| 42 def on_mouse_cancel(self): | |
| 43 pass | |
| 44 | |
| 45 def on_click(self): | |
| 46 pass | |
| 47 | |
| 37 | 48 |
| 49 class ContainerView(Drawable): | |
| 38 | 50 |
| 51 def __init__(self): | |
| 52 self.children = [] | |
| 53 | |
| 54 def add_child(self, child): | |
| 55 self.children.append(child) | |
| 56 | |
| 57 def remove_child(self, child): | |
| 58 self.children.remove(child) | |
| 59 | |
| 60 def get_child_by_pos(self, pos): | |
| 61 for child in self.children: | |
| 62 if child.rect.collidepoint(pos): | |
| 63 if isinstance(child, ContainerView): | |
| 64 # calculates position relative to child | |
| 65 x = pos[0] - child.rect[0] | |
| 66 y = pos[1] - child.rect[1] | |
| 67 return child.get_child_by_pos((x, y)) | |
| 68 else: | |
| 69 return child | |
| 70 | |
| 71 def draw_children(self, surface): | |
| 72 for child in self.children: | |
| 73 child.draw(surface) | |
| 74 | |
| 75 | |
| 37 | 76 class Window(Clickable, ContainerView): |
| 38 | 77 |
| 78 def __init__(self, screen): | |
| 79 super(Window, self).__init__() | |
| 80 self.surface = Surface((screen.get_width(), screen.get_height())) | |
| 81 self.background_colour = None | |
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82 self.background_image = image.load( |
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83 filepath('images/background.jpg')) |
| 38 | 84 self.pressed_child = None |
| 85 | |
| 86 def on_mouse_down(self, pos): | |
| 87 child = self.get_child_by_pos(pos) | |
| 88 if isinstance(child, Clickable): | |
| 89 # calculates position relative to child | |
| 90 x = pos[0] - child.rect[0] | |
| 91 y = pos[1] - child.rect[1] | |
| 92 child.on_mouse_down((x, y)) | |
| 93 self.pressed_child = child | |
| 94 | |
| 95 def on_mouse_up(self, pos): | |
| 96 if self.pressed_child: | |
| 97 child = self.pressed_child | |
| 98 x = pos[0] - child.rect[0] | |
| 99 y = pos[1] - child.rect[1] | |
| 100 child.on_mouse_up((x, y)) | |
| 101 self.pressed_child = None | |
| 102 | |
| 103 def on_mouse_move(self, pos): | |
| 104 if self.pressed_child: | |
| 105 if self.pressed_child != self.get_child_by_pos(pos): | |
| 106 self.pressed_child.on_mouse_cancel() | |
| 107 self.pressed_child = None | |
| 108 | |
| 109 def draw(self, screen): | |
| 110 if self.background_colour: | |
| 111 self.surface.fill(self.background_colour) | |
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112 else: |
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113 self.surface.fill((0, 0, 0, 255)) |
| 38 | 114 if self.background_image: |
| 115 self.surface.blit(self.background_image, (0, 0)) | |
| 116 self.draw_children(self.surface) | |
| 117 screen.blit(self.surface, (0, 0)) | |
| 118 | |
| 37 | 119 |
| 120 class StateDrawable(Drawable): | |
| 38 | 121 |
| 122 def __init__(self, rect): | |
| 123 super(StateDrawable, self).__init__(rect) | |
| 124 self.state = -1 | |
| 125 self.states = {} | |
| 126 self.drawables = [] | |
| 127 | |
| 128 def draw(self, surface): | |
| 129 if self.state != -1 and self.drawables[self.state]: | |
| 130 self.drawables[self.state].draw(surface) | |
| 131 | |
| 132 def add_state(self, state_name, drawable): | |
| 133 self.states[state_name] = len(self.drawables) | |
| 134 self.drawables.append(drawable) | |
| 135 | |
| 136 def set_state(self, state_name): | |
| 137 self.state = self.states[state_name] | |
| 138 | |
| 139 | |
| 37 | 140 class Button(Clickable, StateDrawable): |
| 38 | 141 |
| 142 def __init__(self, rect, normal_drawable, down_drawable): | |
| 143 super(Button, self).__init__(rect) | |
| 144 self.add_state('NORMAL', normal_drawable) | |
| 145 self.add_state('DOWN', down_drawable) | |
| 146 self.set_state('NORMAL') | |
| 147 | |
| 148 def on_mouse_down(self, pos): | |
| 149 self.set_state('DOWN') | |
| 150 | |
| 151 def on_mouse_up(self, pos): | |
| 152 self.set_state('NORMAL') | |
| 153 self.on_click() | |
| 154 | |
| 155 def on_mouse_cancel(self): | |
| 156 self.set_state('NORMAL') | |
| 157 | |
| 158 | |
| 37 | 159 class TextButton(Button): |
| 160 | |
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161 def __init__(self, rect, normal_drawable, down_drawable, text, font, |
| 212 | 162 shadow, text_rect=None, color=(0, 0, 0), |
| 163 shadow_color=(128, 128, 128)): | |
| 38 | 164 super(TextButton, self).__init__(rect, normal_drawable, down_drawable) |
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165 self.text_rect = Rect((0, 0), self.rect.size) |
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166 if text_rect is not None: |
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167 self.text_rect = Rect(*text_rect) |
| 38 | 168 self.text = text |
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169 if font is font_auto: |
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170 font = self._auto_font() |
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171 self.font = font |
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172 self.shadow = shadow |
| 212 | 173 self.shadow_color = shadow_color |
| 174 self.color = color | |
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175 self._draw_text() |
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176 |
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177 def _auto_font(self): |
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178 for font in (font_large, font_medium): |
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179 h, w = font.size(self.text) |
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180 if w < self.text_rect.width and h < self.text_rect.height: |
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181 return font |
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182 return font_small |
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183 |
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184 def _draw_text(self): |
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185 self.font.set_bold(True) |
| 212 | 186 self.text_surface = self.font.render(self.text, True, self.color) |
| 69 | 187 size = self.font.size(self.text) |
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188 if self.shadow: |
| 212 | 189 s = self.font.render(self.text, True, self.shadow_color) |
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190 temp = Surface((s.get_width() + 1, s.get_width() + 1), SRCALPHA) |
| 71 | 191 temp.fill((255, 255, 255, 0)) |
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192 temp.blit(s, (1, 1)) |
| 71 | 193 temp.blit(self.text_surface, (0, 0)) |
| 194 self.text_surface = temp | |
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195 size = [s + 2 for s in size] |
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196 self.text_offset = Rect((0, 0), size) |
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197 self.text_offset.center = self.text_rect.center |
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198 self.font.set_bold(False) |
| 37 | 199 |
| 38 | 200 def draw(self, surface): |
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201 temp_surface = Surface(self.rect.size, SRCALPHA) |
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202 super(TextButton, self).draw(temp_surface) |
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203 temp_surface.blit(self.text_surface, self.text_offset) |
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204 surface.blit(temp_surface, self.rect) |
| 64 | 205 |
| 206 | |
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207 class ToggleButton(Button): |
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208 |
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209 def __init__(self, rect, normal_drwble, down_drwble): |
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210 super(ToggleButton, self).__init__(rect, normal_drwble, down_drwble) |
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211 self.toggled = False |
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212 |
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213 def on_click(self): |
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214 self.toggled = not self.toggled |
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215 if self.toggled: |
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216 self.set_state('DOWN') |
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217 else: |
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218 self.set_state('NORMAL') |
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219 |
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220 |
| 64 | 221 class TextLabel(Drawable): |
| 222 | |
| 223 def __init__(self, rect, text, font, color): | |
| 224 super(TextLabel, self).__init__(rect) | |
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225 self.surface = Surface((rect[2], rect[3]), pygame.SRCALPHA) |
| 64 | 226 self.text = text |
| 227 self.font = font | |
| 228 self.color = color | |
| 229 self._draw_text() | |
| 230 | |
| 231 def _draw_text(self): | |
| 232 self.text_surface = self.font.render(self.text, True, self.color) | |
| 233 size = self.font.size(self.text) | |
| 234 # We centre vertically, but start at left edge | |
| 235 self.text_offset = (0, (self.rect[3] - size[1]) / 2) | |
| 236 | |
| 237 def draw(self, surface): | |
| 238 self.surface.fill((0, 0, 0, 0)) | |
| 239 super(TextLabel, self).draw(self.surface) | |
| 240 self.surface.blit(self.text_surface, self.text_offset) | |
| 241 surface.blit(self.surface, self.rect) | |
| 113 | 242 |
| 243 | |
| 244 class TextBox(TextLabel): | |
| 245 | |
| 246 def _draw_text(self): | |
| 247 self.text_surface = Surface((self.rect[2], self.rect[3]), | |
| 248 pygame.SRCALPHA) | |
| 249 current_height = 0 | |
| 250 current_str = '' | |
| 251 size = None | |
| 252 for word in self.text.split(' '): | |
| 253 size = self.font.size(current_str + word) | |
| 254 if size[0] < self.rect.width: | |
| 255 current_str += word + ' ' | |
| 256 else: | |
| 257 s = self.font.render(current_str[0:-1], True, self.color) | |
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258 self._resize_text_surface(current_height + size[1]) |
| 113 | 259 self.text_surface.blit(s, (0, current_height)) |
| 260 current_height += size[1] | |
| 261 current_str = word + ' ' | |
| 262 if current_str[-1] == ' ': | |
| 263 current_str = current_str[0:-1] | |
| 264 s = self.font.render(current_str, True, self.color) | |
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265 self._resize_text_surface(current_height + size[1]) |
| 113 | 266 self.text_surface.blit(s, (0, current_height)) |
| 267 self.text_offset = (0, 0) | |
| 268 self.rect.height = current_height + size[1] | |
| 269 self.surface = Surface((self.rect.width, self.rect.height), | |
| 270 pygame.SRCALPHA) | |
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271 |
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272 def _resize_text_surface(self, new_height): |
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273 """Resize the text surface if needed""" |
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274 if new_height > self.text_surface.get_rect().height: |
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275 old_text = self.text_surface |
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276 self.text_surface = Surface((self.rect[2], new_height), |
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277 pygame.SRCALPHA) |
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278 self.text_surface.blit(old_text, (0, 0)) |