Add menu bar to help browser
This commit is contained in:
Kevin Lange
parent
3f1f63e96e
commit
4f3f6fc3bc
@ -4,6 +4,7 @@ Help Documentation Browser
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"""
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import os
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import sys
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import subprocess
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import cairo
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@ -11,6 +12,11 @@ import yutani
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import toaru_fonts
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import text_region
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from menu_bar import MenuBarWidget, MenuEntryAction, MenuEntrySubmenu, MenuEntryDivider, MenuWindow
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version = "0.1.0"
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_description = f"<b>Help Browser {version}</b>\n© 2017 Kevin Lange\n\nRich text help document viewer.\n\n<color 0x0000FF>http://github.com/klange/toaruos</color>"
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class HelpBrowserWindow(yutani.Window):
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base_width = 800
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@ -27,13 +33,47 @@ class HelpBrowserWindow(yutani.Window):
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self.scroll_offset = 0
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self.tr = None
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self.size_changed = False
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self.update_text_buffer()
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self.special = {}
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self.special['contents'] = self.special_contents
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self.special['demo'] = self.special_demo
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self.down_text = None
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def print_derp(derp):
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print("derp!")
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def exit_app(action):
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menus = [x for x in self.menus.values()]
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for x in menus:
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x.definitely_close()
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self.close()
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sys.exit(0)
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def about_window(action):
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subprocess.Popen(["about-applet.py","About Help Browser","help","/usr/share/icons/48/help.png",_description])
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menus = [
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("File", [
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#MenuEntryAction("Open...",None,print_derp,None),
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#MenuEntryDivider(),
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MenuEntryAction("Exit","exit",exit_app,None),
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]),
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("Go", [
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MenuEntryAction("Home",None,self.go_page,"0_index.trt"),
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MenuEntryAction("Topics",None,self.go_page,"special:contents"),
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MenuEntryAction("Back",None,self.go_back,None),
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]),
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("Help", [
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MenuEntryAction("Contents","help",self.go_page,"help_browser.trt"),
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MenuEntryDivider(),
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MenuEntryAction("About Help Browser","star",about_window,None),
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]),
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]
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self.menubar = MenuBarWidget(self,menus)
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self.menus = {}
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self.hovered_menu = None
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self.update_text_buffer()
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def get_title(self, document):
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if document.startswith("special:"):
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if self.current_topic[8:] in self.special:
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@ -104,28 +144,20 @@ You can also <link target=\"special:contents\">check the Table of Contents</link
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"""
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def get_help_text(self):
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output = f"<b><link target=\"{self.last_topic}\">Back</link>"
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output += f" | <link target=\"0_index.trt\">Home</link>"
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output += f" | <link target=\"special:contents\">Contents</link>"
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output += f" | <i>{self.current_topic}</i>: {self.get_title(self.current_topic)}"
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output += f"</b>\n"
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output += self.get_document_text() + "\n\n" + output
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return output
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def navigate(self, target):
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self.last_topic = self.current_topic
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self.current_topic = target
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self.text_offset = 0
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self.scroll_offset = 0
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self.tr.set_richtext(self.get_help_text())
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self.tr.set_richtext(self.get_document_text())
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self.update_text_buffer()
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self.set_title(f"{self.get_title(self.current_topic)} - Help Browser","help")
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def update_text_buffer(self):
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if self.size_changed or not self.text_buffer:
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if self.text_buffer:
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self.text_buffer.destroy()
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self.text_buffer = yutani.GraphicsBuffer(self.width - self.decorator.width(),self.height-self.decorator.height()+80)
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self.text_buffer = yutani.GraphicsBuffer(self.width - self.decorator.width(),self.height-self.decorator.height()+80-self.menubar.height)
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surface = self.text_buffer.get_cairo_surface()
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ctx = cairo.Context(surface)
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ctx.rectangle(0,0,surface.get_width(),surface.get_height())
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@ -137,7 +169,7 @@ You can also <link target=\"special:contents\">check the Table of Contents</link
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self.tr = text_region.TextRegion(pad,0,surface.get_width()-pad*2,surface.get_height())
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self.tr.set_line_height(18)
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self.tr.base_dir = '/usr/share/help/'
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self.tr.set_richtext(self.get_help_text())
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self.tr.set_richtext(self.get_document_text())
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elif self.size_changed:
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self.size_changed = False
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self.tr.resize(surface.get_width()-pad*2,surface.get_height()-pad*2)
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@ -156,9 +188,14 @@ You can also <link target=\"special:contents\">check the Table of Contents</link
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ctx.set_source_rgb(204/255,204/255,204/255)
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ctx.fill()
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ctx.save()
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ctx.translate(0,self.menubar.height)
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text = self.text_buffer.get_cairo_surface()
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ctx.set_source_surface(text,0,-self.text_offset)
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ctx.paint()
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ctx.restore()
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self.menubar.draw(ctx,0,0,WIDTH)
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self.decorator.render(self)
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@ -197,13 +234,39 @@ You can also <link target=\"special:contents\">check the Table of Contents</link
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def text_under_cursor(self, msg):
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"""Get the text unit under the cursor."""
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x = msg.new_x - self.decorator.left_width()
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y = msg.new_y - self.decorator.top_height() + self.text_offset
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y = msg.new_y - self.decorator.top_height() + self.text_offset - self.menubar.height
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return self.tr.click(x,y)
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def go_page(self, action):
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"""Navigate to a page."""
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self.navigate(action)
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self.draw()
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self.flip()
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def go_back(self,action):
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"""Go back."""
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if self.last_topic:
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self.navigate(self.last_topic)
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self.draw()
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self.flip()
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def mouse_event(self, msg):
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if d.handle_event(msg) == yutani.Decor.EVENT_CLOSE:
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window.close()
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sys.exit(0)
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x,y = msg.new_x - self.decorator.left_width(), msg.new_y - self.decorator.top_height()
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w,h = self.width - self.decorator.width(), self.height - self.decorator.height()
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if x >= 0 and x < w and y >= 0 and y < self.menubar.height:
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self.menubar.mouse_event(msg, x, y)
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if x >= 0 and x < w and y >= self.menubar.height and y < h:
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if msg.buttons & yutani.MouseButton.BUTTON_RIGHT:
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if not self.menus:
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menu_entries = [
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MenuEntryAction("Back",None,self.go_back,None),
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]
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menu = MenuWindow(menu_entries,(self.x+msg.new_x,self.y+msg.new_y),root=self)
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if msg.command == yutani.MouseEvent.DOWN:
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e = self.text_under_cursor(msg)
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r = False
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@ -302,17 +365,40 @@ if __name__ == '__main__':
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if window.keyboard_event(msg):
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window.draw()
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window.flip()
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elif msg.wid in window.menus:
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window.menus[msg.wid].keyboard_event(msg)
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elif msg.type == yutani.Message.MSG_WINDOW_FOCUS_CHANGE:
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if msg.wid == window.wid:
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window.focused = msg.focused
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if msg.focused == 0 and window.menus:
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window.focused = 1
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else:
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window.focused = msg.focused
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window.draw()
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window.flip()
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elif msg.wid in window.menus and msg.focused == 0:
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window.menus[msg.wid].leave_menu()
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if not window.menus and window.focused:
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window.focused = 0
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window.draw()
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window.flip()
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elif msg.type == yutani.Message.MSG_RESIZE_OFFER:
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window.finish_resize(msg)
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if msg.wid == window.wid:
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window.finish_resize(msg)
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elif msg.type == yutani.Message.MSG_WINDOW_MOVE:
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if msg.wid == window.wid:
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window.x = msg.x
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window.y = msg.y
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elif msg.type == yutani.Message.MSG_WINDOW_MOUSE_EVENT:
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if msg.wid == window.wid:
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if window.mouse_event(msg):
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window.draw()
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window.flip()
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elif msg.wid in window.menus:
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m = window.menus[msg.wid]
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if msg.new_x >= 0 and msg.new_x < m.width and msg.new_y >= 0 and msg.new_y < m.height:
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window.hovered_menu = m
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elif window.hovered_menu == m:
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window.hovered_menu = None
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m.mouse_action(msg)
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