From a28c177fd3b15ce7f2de08760c1e6dbf0b57981f Mon Sep 17 00:00:00 2001 From: yumoqing Date: Sat, 6 Nov 2021 11:29:24 +0800 Subject: [PATCH] bugfix --- kivyblocks/dg.pyx | 594 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 594 insertions(+) create mode 100644 kivyblocks/dg.pyx diff --git a/kivyblocks/dg.pyx b/kivyblocks/dg.pyx new file mode 100644 index 0000000..5e5c873 --- /dev/null +++ b/kivyblocks/dg.pyx @@ -0,0 +1,594 @@ +import time +import ujson as json +from functools import partial + +from kivy.logger import Logger +from kivy.uix.gridlayout import GridLayout +from kivy.uix.boxlayout import BoxLayout +from kivy.uix.scrollview import ScrollView +from kivy.uix.label import Label +from kivy.graphics import Fbo +from kivy.uix.button import ButtonBehavior +from kivy.clock import Clock +from kivy.properties import BooleanProperty, StringProperty +from kivy.properties import ListProperty +from kivy.graphics import Color, Rectangle +from kivy.app import App +from kivy.factory import Factory + +from appPublic.dictObject import DictObject +from appPublic.timecost import TimeCost +from appPublic.uniqueID import getID +from appPublic.myTE import string_template_render + +from .utils import CSize, setSizeOptions, loading, loaded, absurl, alert +from .baseWidget import Text, HBox, VBox +from .scrollpanel import ScrollPanel +from .paging import Paging, RelatedLoader +from .ready import WidgetReady +from .toolbar import Toolbar +from .bgcolorbehavior import BGColorBehavior +from .widget_css import WidgetCSS + +def field_widget(desc, rec): + viewer = desc.get('viewer') + if viewer: + if not isinstance(viewer,str): + viewer = json.dumps(viewer) + rendered = string_template_render(viewer, rec) + dic = json.loads(rendered) + if dic is None: + return None + blocks = Factory.Blocks() + return blocks.widgetBuild(dic) + + uitype = desc.get('uitype', 'str') + if uitype is None: + uitype = desc.get('datatype') + if uitype in [ 'str' 'date', 'time', 'timestamp' ]: + return Text(text = str(desc['value']), + font_size=CSize(1),wrap=True, + halign='left', valign='middle' + ) + if uitype in [ 'long', 'int','integer' ]: + return Text(text=str(desc['value']), + font_size=CSize(1), wrap=True, + halign='right', valign='middle' + ) + if uitype == 'float': + f = '%%.0%df' % desc.get('dec',2) + return Text(text=f % float(desc['value']), + font_size=CSize(1), wrap=True, + halign='right', valign='middle' + ) + if uitype == 'code': + tf = desc.get('textField','text') + vf = desc.get('valueField','value') + v = rec.get(tf,rec.get(vf, ' ')) + return Text(text=v, font_size = CSize(1), wrap=True, + halign='right', valign='middle' + ) + return Text(text = str(desc['value']), + font_size=CSize(1),wrap=True, + halign='left', valign='middle' + ) + + +class BLabel(ButtonBehavior, Text): + def __init__(self, **kw): + ButtonBehavior.__init__(self) + Text.__init__(self,**kw) + self.csscls = 'dummy' + +class Cell(ButtonBehavior, WidgetCSS, BoxLayout): + def __init__(self,row,desc, **kw): + """ + desc:{ + width, + datatype:fff + value: + format: + on_press: + } + """ + self.desc = desc + self.row = row + csscls=self.row.part.datagrid.body_css + if self.row.header: + csscls=self.row.part.datagrid.header_css + super().__init__(size_hint=(None,None), + width = self.desc['width'], + height = self.row.part.datagrid.rowHeight(), + csscls=csscls + ) + if desc['header']: + bl = Text(i18n=True, text=str(desc['value']), + font_size=CSize(1),wrap=True, + halign='left', valign='middle' + ) + else: + bl = field_widget(desc,self.row.row_data) + if bl: + self.add_widget(bl) + + def on_press(self,o=None): + if not self.row.header: + self.row.selected() + +class Row(BoxLayout): + def __init__(self,part, rowdesc,header=False,data=None, **kw): + """ + rowdesc=[ + { + width, + name + value + on_press + } + + """ + self.part = part + self.header = header + self.row_data = data + self.row_id = None + self.linewidth = self.part.datagrid.linewidth + self.rowdesc = rowdesc + opts = kw.copy() + opts.update({ + "spacing":self.linewidth, + "orientation":"horizontal" + }) + super(Row, self).__init__(**opts) + self.height = self.part.datagrid.rowHeight() + self.init(0) + + + def init(self,t): + w = 0 + h = 0 + for c in self.rowdesc: + c['header'] = self.header + cell = Cell(self,c) + self.add_widget(cell) + w += cell.width + self.size_hint = None,None + self.width = w + self.linewidth * (len(self.rowdesc)+1) + + def selected(self): + if not hasattr(self,'row_data'): + return # header + print('row selected',self.row_id, self.row_data) + + self.part.datagrid.row_selected = True + self.part.datagrid.select_rowid = self.row_id + self.part.datagrid.select_row = self + self.part.datagrid.dispatch('on_selected',self) + +class Header(WidgetReady, ScrollPanel): + def __init__(self,part,**kw): + super(Header, self).__init__(**kw) + self.part = part + self.init(1) + self.bind(on_scroll_stop=self.part.datagrid.on_scrollstop) + if self.part.freeze_flag: + self.bar_width = 0 + + def init(self,t): + rd = [ f.copy() for f in self.part.rowdesc ] + [ f.update({'value':self.part.fields[i].get('label', \ + self.part.fields[i].get('name'))}) \ + for i,f in enumerate(rd) ] + self.header = Row(self.part,rd,header=True) + self.add_widget(self.header) + self.height = self.header.height + +class Body(WidgetReady, ScrollPanel): + def __init__(self,part,**kw): + self.part = part + kw.update({'spacing':self.part.datagrid.linewidth}) + super(Body, self).__init__(**kw) + self.size_hint=(1,1) + self.idRow = {} + self.bind(on_scroll_stop=self.part.datagrid.on_scrollstop) + if self.part.freeze_flag: + self.bar_width = 0 + + def addRow(self,id, data,index=0): + rd = [ f.copy() for f in self.part.rowdesc ] + [ f.update({'value':data.get(f['name'])}) for f in rd ] + row = Row(self.part,rd,data=data) + row.row_id = id + self.add_widget(row,index=index) + self.idRow[id] = row + return row + + def clearRows(self): + self.idRow = {} + self.clear_widgets() + + def delRowById(self,id): + row = self.idRow.get(id) + if row: + self.remove_widget(row) + if self.idRow.get(id): + del self.idRow[id] + + def getRowData(self,rowid): + return self.idRow[rowid].row_data + + def getRowHeight(self): + return self.part.datagrid.rowHeight() + +class DataGridPart(WidgetReady, BoxLayout): + def __init__(self,dg, freeze_flag, fields): + self.datagrid = dg + self.fields = fields + self.freeze_flag = freeze_flag + self.fields_width = None + BoxLayout.__init__(self, orientation='vertical') + WidgetReady.__init__(self) + self.init(0) + + def setWidth(self): + if self.freeze_flag: + self.size_hint_x = None + self.width = self.getFieldsWidth() + + def getFieldsWidth(self): + if not self.fields_width: + width = 0 + for f in self.rowdesc: + width += f['width'] + self.fields_width = width + return self.fields_width + + def init(self,t): + rd = [] + for f in self.fields: + r = f.copy() + r['width'] = CSize(f.get('width',10)) + rd.append(r) + self.rowdesc = rd + self.setWidth() + kw = {} + if self.freeze_flag: + kw['width'] = self.fields_width + kw['size_hint'] = (None,None) + else: + kw['size_hint'] = (1,None) + kw['height'] = self.datagrid.rowHeight() + + self.header = None + if not self.datagrid.noheader: + self.header = Header(self,**kw) + self.add_widget(self.header) + self.body = Body(self) + self.add_widget(self.body) + if not self.freeze_flag: + self.body.bind(pos=self.datagrid.bodyOnSize, + size=self.datagrid.bodyOnSize) + + def clearRows(self): + return self.body.clearRows() + + def addRow(self,id, data): + return self.body.addRow(id, data) + + def on_size(self, o, s=None): + if not hasattr(self, 'body'): + return + self.body.size_hint_y = None + if self.header: + self.body.height = self.height - self.header.height + else: + self.body.height = self.height + + +class DataGrid(WidgetReady, BoxLayout): + """ + DataGrid data format: + { + "widgettype":"DataGrid", + "dataloader":{ + "page":1, + "rows":60, + "dataurl":"eeee", + "params":{ + } + }, + "tailer":{ + "options":{ + } + "info":[ + "total_cnt", + "total_page", + "page_rows", + "curpage" + ], + "others":{ + } + }, + "row_height": CSize, + "header_css":"default", + "body_css":"default", + "spacing":1, + "fields":[ + { + "name":"field1", + "label":"Field1", + "datatype":"str", + "uitype":"code", + "value_field":, + "text_field": + }, + { + "name":"field2", + "label":"Field2", + "viewer":{ + block dic + } + } + ... + ] + "binds":[ + ] + } + """ + row_selected = BooleanProperty(False) + def __init__(self,**options): + options['orientation'] = 'vertical' + BoxLayout.__init__(self, orientation='vertical') + WidgetReady.__init__(self) + self.select_rowid = None + self.options = options + self.rowheight = None + self.on_sizeTask = None + self.selected_rowid = None + self.show_rows = 0 + self.toolbar = None + self.freeze_part = None + self.normal_part = None + self.page_rows = self.options.get('page_rows', 60) + self.params = self.options.get('params',{}) + self.total_cnt = 0 + self.max_row = 0 + self.row_height = self.options.get('row_height',2) + self.header_css = self.options.get('header_css','default') + self.noheader = self.options.get('noheader',False) + self.body_css = self.options.get('body_css', 'default') + self.linewidth = self.options.get('linewidth',1) + self.curpage = 0 + self.loading = False + self.freeze_fields = self.getPartFields(freeze_flag=True) + self.normal_fields = self.getPartFields(freeze_flag=False) + ldr_desc = options.get('dataloader') + if not ldr_desc: + raise Exception('DataGrid need a DataLoader') + self.dataloader = RelatedLoader(target=self, **ldr_desc) + self.dataloader.bind(on_deletepage=self.delete_page) + self.dataloader.bind(on_pageloaded=self.add_page) + self.dataloader.bind(on_pageloaded=self.update_tailer_info) + self.dataloader.bind(on_newbegin=self.clearRows) + self.register_event_type('on_selected') + self.register_event_type('on_scrollstop') + self.createDataGridPart() + self.createToolbar() + if self.toolbar: + self.add_widget(self.toolbar) + + b = BoxLayout(orientation='horizontal') + if self.freeze_part: + b.add_widget(self.freeze_part) + if self.normal_part: + b.add_widget(self.normal_part) + self.add_widget(b) + if self.options.get('tailer'): + self.tailer_widgets = {} + self.build_tailer(self.options.get('tailer')) + + def build_tailer(self, tailer_desc): + kw = tailer_desc.get('options', {}) + kw.update({ + 'size_hint_y':None, + 'height':self.rowheight + }) + w = HBox(**kw) + self.add_widget(w) + self.show_infos(w, tailer_desc.get('info')) + if tailer_desc.get('others'): + w1 = self.build_tailer_other(tailer_desc.get('others')) + if w1: + w.add_widget(w1) + + def update_tailer_info(self, *args): + if not hasattr(self, 'tailer_widgets'): + return + for n,w in self.tailer_widgets.items(): + w.text = self.loader_info(n) + + def show_infos(self, tailer_widget, info_names): + for n in info_names: + desc = { + "widgettype":"Text", + "options":{ + "text":n, + "i18n":True, + } + } + w = Factory.Blocks().widgetBuild(desc) + tailer_widget.add_widget(w) + tailer_widget.add_widget(Label(text=':')) + self.tailer_widgets[n] = Label(text=self.loader_info(n)) + tailer_widget.add_widget(self.tailer_widgets[n]) + + def build_tailer_others(desc): + return Factory.Blocks().widgetBuild(desc) + + def loader_info(self, n): + if hasattr(self.dataloader, n): + txt=getattr(self.dataloader, n, 0) + if txt is None: + txt = '0' + txt = str(txt) + return txt + + def locater(self,pos): + self.normal_part.body.scroll_y = pos + if self.freeze_part: + self.freeze_part.body.scroll_y = pos + + def on_scrollstop(self,o,v=None): + if not self.noheader and o == self.normal_part.header: + self.normal_part.body.scroll_x = o.scroll_x + return + if o == self.normal_part.body: + if not self.noheader: + self.normal_part.header.scroll_x = o.scroll_x + if self.freeze_part: + self.freeze_part.body.scroll_y = o.scroll_y + if self.freeze_part and o == self.freeze_part.body: + self.normal_part.body.scroll_y = o.scroll_y + + if o.scroll_y <= 0.001: + self.dataloader.loadNextPage() + if o.scroll_y >= 0.999: + self.dataloader.loadPreviousPage() + + def getValue(self): + if not self.select_rowid: + return None + return self._getRowData(self.select_rowid) + + def _getRowData(self, rowid): + d = {} + if self.freeze_part: + d.update(self.freeze_part.body.getRowData(rowid)) + d.update(self.normal_part.body.getRowData(rowid)) + print('getValue() return=',d) + return DictObject(**d) + + def bodyOnSize(self,o,s): + if self.on_sizeTask is not None: + self.on_sizeTask.cancel() + self.on_sizeTask = Clock.schedule_once(self.calculateShowRows,0.3) + + def rowHeight(self): + if not self.rowheight: + self.rowheight = CSize(self.row_height) + return self.rowheight + + def calculateShowRows(self,t): + self.getShowRows() + self.dataloader.setPageRows(self.show_rows * 2) + + def getShowRows(self): + if self.show_rows == 0: + return 60 + self.show_rows = int(self.rowHeight() / self.normal_part.body.height) + return self.show_rows * 2 + + def clearRows(self, *args): + print('dg.py:clearRows() called') + if self.freeze_part: + self.freeze_part.body.clearRows() + self.normal_part.body.clearRows() + + def add_page(self,o,data): + dir = data['dir'] + if not self.show_rows: + self.getShowRows() + + ids = [] + recs = data['data'] + idx = 0 + if dir == 'up': + recs.reverse() + idx = -1 + recs1 = recs[:self.show_rows] + recs2 = recs[self.show_rows:] + self._fbo = Fbo(size=self.size) + with self._fbo: + self._background_color = Color(0,0,0,1) + self._background_rect = Rectangle(size=self.size) + for r in recs1: + id = self.addRow(r,index=idx) + ids.append(id) + with self.canvas: + self._fbo_rect = Rectangle(size=self.size, + texture=self._fbo.texture) + + data['idx'] = idx + data['ids'] = ids + data['data'] = recs2 + f = partial(self.add_page_delay,data) + Clock.schedule_once(f, 0) + + def add_page_delay(self, data, *args): + recs = data['data'] + page = data['page'] + idx = data['idx'] + ids = data['ids'] + self._fbo = Fbo(size=self.size) + with self._fbo: + self._background_color = Color(0,0,0,1) + self._background_rect = Rectangle(size=self.size) + for r in recs: + id = self.addRow(r,index=idx) + ids.append(id) + with self.canvas: + self._fbo_rect = Rectangle(size=self.size, + texture=self._fbo.texture) + self.dataloader.bufferObjects(page,ids) + x = self.dataloader.getLocater() + self.locater(x) + + def delete_page(self,o,data): + print('dg.py:delete_page() called') + for id in data: + self.delRow(id) + + def addRow(self,data, **kw): + id = getID() + f_row = None + if self.freeze_part: + self.freeze_part.body.addRow(id, data, **kw) + self.normal_part.body.addRow(id, data, **kw) + return id + + def delRow(self,id,**kw): + if self.freeze_part: + self.freeze_part.body.delRowById(id) + self.normal_part.body.delRowById(id) + + def createToolbar(self): + if 'toolbar' in self.options.keys(): + tb = self.options['toolbar'] + self.toolbar = Toolbar(**tb) + + def on_selected(self,row): + print("DataGrid():on_selected fire") + + def loadData(self,*args, **kwargs): + print('args=', args, 'kwargs=',kwargs) + kwargs['page'] = 1 + self.dataloader.do_search(None,kwargs) + + def createDataGridPart(self): + self.freeze_part = None + self.normal_part = None + if self.freeze_fields: + self.freeze_part = DataGridPart(self,True, self.freeze_fields) + if self.normal_fields: + self.normal_part = DataGridPart(self, False, self.normal_fields) + + def getPartFields(self,freeze_flag:bool=False) -> list: + fs = [] + for f in self.options['fields']: + if freeze_flag: + if f.get('freeze',False): + fs.append(f) + else: + if not f.get('freeze',False): + fs.append(f) + return fs +