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Split FileView properly into files. Slowly it is getting its final form.
This commit is contained in:
Vedran Ljubovic
648
efiler/EDE_FileIconView.cpp
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648
efiler/EDE_FileIconView.cpp
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@ -0,0 +1,648 @@
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/*
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* $Id$
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*
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* EDE FileView class
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* Part of edelib.
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* Copyright (c) 2005-2007 EDE Authors.
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*
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* This program is licenced under terms of the
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* GNU General Public Licence version 2 or newer.
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* See COPYING for details.
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*/
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#include "EDE_FileView.h"
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#include <FL/Fl_Button.H>
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#include <FL/filename.H> // for FL_PATH_MAX
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#include <FL/fl_draw.H> // for fl_measure and drawing selection box
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#include <FL/Fl_Shared_Image.H>
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#include <edelib/Nls.h>
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#include <edelib/String.h>
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#include <edelib/IconTheme.h>
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#include <edelib/Debug.h>
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// debugging help
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#define DBG "FileIconView: "
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// ctor
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#ifdef USE_FLU_WRAP_GROUP
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FileIconView::FileIconView(int X, int Y, int W, int H, char*label) : Flu_Wrap_Group(X,Y,W,H,label)
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#else
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FileIconView::FileIconView(int X, int Y, int W, int H, char*label) : edelib::ExpandableGroup(X,Y,W,H,label)
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#endif
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{
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end();
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box(FL_DOWN_BOX);
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color(FL_BACKGROUND2_COLOR);
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#ifdef USE_FLU_WRAP_GROUP
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spacing(ICON_SPACING,ICON_SPACING);
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#endif
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select_x1=select_y1=select_x2=select_y2=0;
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focused=0;
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m_selected = 0;
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rename_callback_ = 0;
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paste_callback_ = 0;
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context_callback_ = 0;
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}
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// Methods for manipulating items
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// They are named similarly to Browser methods, except that they take
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// struct FileItem (defined in EDE_FileView.h)
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void FileIconView::insert(int row, FileItem *item) {
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// update list of selected[] items
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if (!m_selected)
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m_selected = (int*)malloc(sizeof(int)*(children()+1));
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else
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m_selected = (int*)realloc(m_selected,sizeof(int)*(children()+1));
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m_selected[children()]=0;
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Fl_Button* b = new Fl_Button(0,0,ICONW,ICONH);
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b->box(FL_RFLAT_BOX);
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b->color(FL_BACKGROUND2_COLOR);
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b->align(FL_ALIGN_INSIDE|FL_ALIGN_CENTER|FL_ALIGN_CLIP);
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// Set the label
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char buffer[FL_PATH_MAX];
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uint j=0;
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for (uint i=0; i<item->name.length(); i++,j++) {
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buffer[j] = item->name[i];
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buffer[j+1] = '\0';
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if (buffer[j] == '@') { // escape @
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buffer[++j] = '@';
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buffer[j+1] = '\0';
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}
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b->copy_label(buffer);
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int lw =0, lh = 0;
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fl_measure(b->label(), lw, lh);
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if (lw>ICONW) {
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if (j==i+2) { // already added 2 newlines
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buffer[j-2]='.';
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buffer[j-1]='.';
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buffer[j]='.';
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buffer[j+1]='\0';
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j+=2;
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break; // for
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} else { // add newline
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buffer[j+1]=buffer[j];
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buffer[j]='\n';
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buffer[j+2]='\0';
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j++;
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}
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}
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}
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while (j<=item->name.length()+2){
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buffer[j++]='\n';
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//buffer[j++]='L';
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}
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buffer[j]='\0';
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b->copy_label(buffer);
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// Tooltip text
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edelib::String tooltip = _("Name: ")+item->name;
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if (item->size != "") tooltip += _("\nSize: ")+item->size;
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tooltip += _("\nType: ")+item->description+_("\nDate: ")+item->date+_("\nPermissions: ")+item->permissions;
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b->tooltip(strdup(tooltip.c_str()));
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b->user_data(strdup(item->realpath.c_str()));
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// Set icon
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edelib::String icon = edelib::IconTheme::get(item->icon.c_str(),edelib::ICON_SIZE_MEDIUM);
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if (icon=="") icon = edelib::IconTheme::get("misc",edelib::ICON_SIZE_MEDIUM,edelib::ICON_CONTEXT_MIMETYPE);
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b->image(Fl_Shared_Image::get(icon.c_str()));
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#ifdef USE_FLU_WRAP_GROUP
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Flu_Wrap_Group::insert(*b,row);
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#else
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edelib::ExpandableGroup::insert(*b,row);
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#endif
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//insert(*b,row); -- why doesn't this work?
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redraw();
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}
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void FileIconView::remove(FileItem *item) {
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Fl_Button* b = find_button(item->realpath);
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if (b) {
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#ifdef USE_FLU_WRAP_GROUP
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Flu_Wrap_Group::remove(*b); // note that FWG requires to dereference the pointer
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#else
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edelib::ExpandableGroup::remove(b);
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#endif
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//remove(b);
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delete b;
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}
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}
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void FileIconView::remove(int row) {
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if (row<1 || row>children()) return;
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Fl_Button* b = (Fl_Button*)child(row-1);
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#ifdef USE_FLU_WRAP_GROUP
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Flu_Wrap_Group::remove(*b); // note that FWG requires to dereference the pointer
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#else
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edelib::ExpandableGroup::remove(b);
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#endif
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//remove(b);
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delete b;
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}
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void FileIconView::update(FileItem *item) {
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Fl_Button* b = find_button(item->realpath);
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if (!b) return;
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// Tooltip text
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edelib::String tooltip = _("Name: ")+item->name+_("\nSize: ")+item->size+_("\nType: ")+item->description+_("\nDate: ")+item->date+_("\nPermissions: ")+item->permissions;
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b->tooltip(strdup(tooltip.c_str()));
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// Set icon
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edelib::String icon = edelib::IconTheme::get(item->icon.c_str(),edelib::ICON_SIZE_MEDIUM);
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if (icon=="") icon = edelib::IconTheme::get("misc",edelib::ICON_SIZE_MEDIUM,edelib::ICON_CONTEXT_MIMETYPE);
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b->image(Fl_Shared_Image::get(icon.c_str()));
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b->redraw();
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}
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// This method is needed because update() uses path to find item in list
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void FileIconView::update_path(const char* oldpath,const char* newpath) {
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Fl_Button* b = find_button(oldpath);
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if (!b) return;
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b->user_data(strdup(newpath));
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}
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// Select item (if value==1) or unselect (if value==0)
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// We are faking selection by manipulating fg & bg color
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// TODO: create a new class for icons that should handle selection internally
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void FileIconView::select(int row, int value) {
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if (row<1 || row>children()) return;
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if (!m_selected) return; // shouldn't happen
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set_focus(row);
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int i=0;
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Fl_Button* b = (Fl_Button*)child(row-1);
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if (value) {
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while (m_selected[i++]!=0);
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m_selected[i-1]=row;
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b->color(FL_SELECTION_COLOR);
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b->labelcolor(fl_contrast(FL_FOREGROUND_COLOR,FL_SELECTION_COLOR));
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b->redraw();
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} else {
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while (m_selected[i]!=0) {
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if (m_selected[i]==row) {
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int j=i;
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while (m_selected[j]!=0) {
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m_selected[j]=m_selected[j+1];
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j++;
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}
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break;
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}
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i++;
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}
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b->color(FL_BACKGROUND2_COLOR);
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b->labelcolor(FL_FOREGROUND_COLOR);
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b->redraw();
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}
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}
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// Scroll the view until item becomes visible
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void FileIconView::show_item(int row) {
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EDEBUG(DBG"show_item(%d)\n", row);
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if (row<1 || row>children()) return;
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Fl_Button* b = (Fl_Button*)child(row-1);
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#ifdef USE_FLU_WRAP_GROUP
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// scroll_to() will scroll until icon is at the top of view
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// I prefer that view is scrolled just enough so icon is visible
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// FIXME: sometimes b->y() is so large that it wraps around and becomes positive
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if (b->y()+b->h() > y()+h()) {
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int scrollto = scrollbar.value() + (b->y()+b->h()-y()-h())+1;
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EDEBUG(DBG"by: %d bh: %d y: %d h: %d sv: %d\n", b->y(), b->h(), y(), h(), scrollbar.value());
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((Fl_Valuator*)&scrollbar)->value(scrollto);
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redraw();
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draw(); // we need to relayout the group so that b->y() value is updated for next call
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}
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if (b->y() < y())
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scroll_to(b);
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#else
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// ExpandableGroup scrolling - not tested and probably broken
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Fl_Scrollbar* s = get_scroll();
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if (b->y() > s->value()+h()) {
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// Widget is below current view
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scrolly(b->y()+b->h()-h());
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} else if (b->y() < s->value()) {
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// Widget is above current view
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scrolly(b->y());
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}
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// else { widget is visible, do nothing }
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#endif
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}
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// Overloaded handle() method
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// it's currently a bit messy, see implementation comments for details
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int FileIconView::handle(int e) {
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//EDEBUG(DBG"Event %d\n",e);
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// ------------------------------------------------
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// Fixes for focus management
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// ------------------------------------------------
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// fltk provides focus management for members of Fl_Group, but it has minor problems:
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// - after switching to another window and back, focused widget is forgotten
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// - if no widget is focused, arrow keys will navigate outside group
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// - Tab has same effect as right arrow - we want arrows to only be used inside
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// group, and (Shift+)Tab to be used for going outside
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if (Fl::focus()->inside(this)) { // is focus inside?
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int k = Fl::event_key();
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//EDEBUG(DBG"event_key: %d\n",k);
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if (k==FL_Up || k==FL_Down || k==FL_Left || k==FL_Right) {
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#ifdef USE_FLU_WRAP_GROUP
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// Wrap around - FWG only (due to methods such as above())
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// FL_KEYDOWN happens only if key is otherwise unhandled
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if (e==FL_KEYDOWN) {
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int x = get_focus()-1;
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Fl_Widget* b = child(x);
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Fl_Widget* b2;
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switch(k) {
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case FL_Up:
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b2=above(b);
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if (x==0) b2=child(children()-1);
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break;
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case FL_Down:
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b2=below(b);
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// Bug in Flu_Wrap_Group - inconsistent behavior of below():
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if (b2==b) b2=child(children()-1);
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if (x==children()-1) b2=child(0);
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break;
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case FL_Left:
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b2=left(b);
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if (x==0) b2=child(children()-1);
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break;
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case FL_Right:
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b2=next(b);
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if (x==children()-1) b2=child(0);
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break;
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default: // to silence compiler warnings
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break;
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}
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for (int i=0; i<children(); i++)
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if (b2==child(i)) set_focus(i+1);
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return 1;
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}
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#endif
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// Remember focus for restoring later
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if (e==FL_KEYUP || e==FL_KEYBOARD) { // Sometimes only one of these is triggered
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focused = get_focus();
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if (!focused) {
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// Nothing is focused - this is initial state
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if (k==FL_Up || k==FL_Left)
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set_focus(children());
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else
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set_focus(1);
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} else
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show_item(focused); // scroll follows focus
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return 1; // Don't let fltk navigate to another widget
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}
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}
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// Tab key should always navigate outside group
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// NOTE: This is code is ugly! I am ashamed...
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if (e!=FL_NO_EVENT && e!=FL_KEYUP && k==FL_Tab) { // FL_NO_EVENT happens a lot
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EDEBUG(DBG"TAB %d - focused: (%s)\n",e,Fl::focus()->label());
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// Try to find another widget to give focus to.
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// Because widgets can be *very* nested, we go straight
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// to window()
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Fl_Group* parent_=(Fl_Group*)window();
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Fl_Widget* jumpto=0;
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int i=0;
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while (jumpto==0 && parent_!=this) {
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jumpto=parent_->child(i);
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EDEBUG(DBG" -- (%s)\n", jumpto->label());
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if (this->inside(jumpto) || !jumpto->visible())
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jumpto=0;
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i++;
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if (i==parent_->children()) {
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int j;
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for (j=0; j<parent_->children(); j++)
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if (parent_->child(j)->visible()) break;
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if (j==parent_->children()) {
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// nothing is visible!?
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EDEBUG(DBG"WTF!\n");
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parent_=(Fl_Group*)this;
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} else {
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parent_=(Fl_Group*)parent_->child(j);
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EDEBUG(DBG" -> [%s]\n", parent_->label()); // label everything to debug!!!
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}
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i=0;
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}
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if (jumpto!=0 && !jumpto->take_focus())
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jumpto=0; // widget refused focus, keep searching
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}
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EDEBUG(DBG"[X]\n");
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// if this is the only widget, do nothing
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return 1;
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}
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} // if (Fl::focus()->inside(this)) ...
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// Restore focused widget after losing focus
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if (e==FL_FOCUS) {
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if (focused) set_focus(focused);
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}
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// ------------------------------------------------
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// Make Fl_Group behave like proper widget
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// ------------------------------------------------
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// We accept focus (this defaults to 0 with FL_GROUP)
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if (e==FL_FOCUS) return 1;
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// We accept mouse clicks as long as they're inside
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if (e==FL_PUSH && Fl::event_x()>x() && Fl::event_x() < x()+w()-Fl::scrollbar_size()) return 1;
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// Do callback on enter key
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// (because icons don't have callbacks)
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if (e==FL_KEYBOARD && Fl::event_key()==FL_Enter) {
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do_callback();
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return 1;
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}
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// Select/unselect toggle using SPACE
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if ((e==FL_KEYBOARD || e==FL_KEYUP) && Fl::event_key()==' ') {
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if (selected(get_focus()))
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select(get_focus(),0);
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else
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select(get_focus(),1);
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return 1;
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}
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||||
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||||
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||||
// ------------------------------------------------
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||||
// FL_DRAG does two things: laso and dnd
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// ------------------------------------------------
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||||
|
||||
// "laso" a.k.a. selection box is common name for box used to select many widgets at once
|
||||
|
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static bool laso=false; // are we laso-ing?
|
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static int dragx,dragy; // to check for min dnd distance
|
||||
if (e==FL_DRAG) {
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EDEBUG(DBG"FL_DRAG! ");
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// No laso is active, either start laso or start dnd operation
|
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if (!laso) {
|
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// Drag inside child is dnd
|
||||
int ex=Fl::event_x(); int ey=Fl::event_y();
|
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int inside=0;
|
||||
for (int i=0; i<children(); i++) {
|
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Fl_Button* b = (Fl_Button*)child(i);
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if (ex>b->x()+SELECTION_EDGE && ex<b->x()+b->w()-SELECTION_EDGE && ey>b->y()+SELECTION_EDGE && ey<b->y()+b->h()-SELECTION_EDGE) {
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inside=i+1; break;
|
||||
}
|
||||
}
|
||||
if (inside) {
|
||||
// If widget isn't selected, unselect everything else and select this
|
||||
if (!selected(inside)) {
|
||||
for (int i=0;i<children();i++) {
|
||||
// We cannot use select(i+1,0) because that would mess with focus
|
||||
Fl_Button* b = (Fl_Button*)child(i);
|
||||
b->color(FL_BACKGROUND2_COLOR);
|
||||
b->labelcolor(FL_FOREGROUND_COLOR);
|
||||
}
|
||||
int i=0;
|
||||
while (m_selected[i]!=0) m_selected[i++]=0;
|
||||
select(inside,1);
|
||||
redraw(); // show changes in selection state
|
||||
}
|
||||
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||||
// Construct dnd string and start dnd
|
||||
edelib::String selected_items;
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||||
for (int i=1; i<=children(); i++)
|
||||
if (selected(i)==1) {
|
||||
selected_items += "file://";
|
||||
selected_items += path(i);
|
||||
selected_items += "\r\n";
|
||||
}
|
||||
|
||||
// If paste_callback_ isn't set, that means we don't support dnd
|
||||
if (paste_callback_) {
|
||||
Fl::copy(selected_items.c_str(),selected_items.length(),0);
|
||||
Fl::dnd();
|
||||
dragx=ex; dragy=ey; // to test if its close
|
||||
}
|
||||
return 1;
|
||||
|
||||
} else { // if(inside)...
|
||||
|
||||
// Drag to select (a.k.a. "laso") operation (outside widgets)
|
||||
// Draw a dashed line around icons
|
||||
EDEBUG(DBG"- laso begin.\n");
|
||||
laso=true;
|
||||
// Set coordinates for selection box (drawn in draw())
|
||||
select_x1=select_x2=Fl::event_x();
|
||||
select_y1=select_y2=Fl::event_y();
|
||||
}
|
||||
|
||||
|
||||
} else { // if (!laso) ...
|
||||
|
||||
// Ongoing laso operation, update selection coordinates
|
||||
select_x2=Fl::event_x();
|
||||
select_y2=Fl::event_y();
|
||||
redraw();
|
||||
EDEBUG(DBG"- laso box (%d,%d,%d,%d).\n",select_x1,select_y1,select_x2,select_y2);
|
||||
}
|
||||
return 1;
|
||||
} // if (e==FL_DRAG) ...
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
// ------------------------------------------------
|
||||
// FL_RELEASE does many things:
|
||||
// - (un)select items,
|
||||
// - terminate laso operation,
|
||||
// - show context menu,
|
||||
// - doubleclick,
|
||||
// ------------------------------------------------
|
||||
|
||||
|
||||
// Mouse button released
|
||||
if (e==FL_RELEASE) {
|
||||
EDEBUG(DBG"FL_RELEASE! ");
|
||||
|
||||
// Unselect everything unless Shift or Ctrl is held
|
||||
if (!Fl::event_state(FL_SHIFT) && !Fl::event_state(FL_CTRL)) {
|
||||
for (int i=0;i<children();i++) {
|
||||
// We cannot use select(i+1,0) because that would mess with focus
|
||||
Fl_Button* b = (Fl_Button*)child(i);
|
||||
b->color(FL_BACKGROUND2_COLOR);
|
||||
b->labelcolor(FL_FOREGROUND_COLOR);
|
||||
}
|
||||
redraw();
|
||||
int i=0;
|
||||
while (m_selected[i]!=0) m_selected[i++]=0;
|
||||
}
|
||||
|
||||
// Stop laso operation
|
||||
if (laso) {
|
||||
EDEBUG(DBG"- stop laso.\n");
|
||||
laso=false;
|
||||
|
||||
// Order coordinates
|
||||
int tmp;
|
||||
if (select_x1>select_x2) { tmp=select_x1; select_x1=select_x2; select_x2=tmp; }
|
||||
if (select_y1>select_y2) { tmp=select_y1; select_y1=select_y2; select_y2=tmp; }
|
||||
|
||||
// Exclude edges
|
||||
select_x1 += SELECTION_EDGE;
|
||||
select_y1 += SELECTION_EDGE;
|
||||
select_x2 -= SELECTION_EDGE;
|
||||
select_y2 -= SELECTION_EDGE;
|
||||
EDEBUG(DBG"After fixing the box coords: (%d,%d,%d,%d)\n", select_x1, select_y1, select_x2, select_y2);
|
||||
|
||||
// Find which buttons were lasoed
|
||||
int i;
|
||||
for (i=0; i<children(); i++) {
|
||||
Fl_Widget* w = child(i); // some shortcuts
|
||||
int wx2 = w->x()+w->w();
|
||||
int wy2 = w->y()+w->h();
|
||||
if (select_x2>w->x() && select_x1<wx2 && select_y2>w->y() && select_y1<wy2) {
|
||||
select(i+1,1);
|
||||
EDEBUG(DBG"Select widget: '%20s' (%d,%d,%d,%d)\n", w->label(), w->x(), w->y(), wx2, wy2);
|
||||
}
|
||||
}
|
||||
// Shift key is the same as Ctrl with laso
|
||||
|
||||
select_x1=select_x2=select_y1=select_y2=0;
|
||||
redraw();
|
||||
|
||||
// Single click
|
||||
} else { // if(laso)...
|
||||
|
||||
// Find child that was clicked
|
||||
int i;
|
||||
for (i=0; i<children(); i++)
|
||||
if (Fl::event_inside(child(i))) {
|
||||
EDEBUG(DBG"in child %d\n",i);
|
||||
// Shift key means "select everything in between"
|
||||
if (Fl::event_state(FL_SHIFT)) {
|
||||
int dir = (get_focus()<i) ? 1 : -1;
|
||||
for (int j=get_focus(); j!=i+1; j+=dir)
|
||||
select(j,1);
|
||||
}
|
||||
select(i+1,1);
|
||||
}
|
||||
|
||||
// Didn't click on icon - remove focus from all icons
|
||||
if (i==children()) {
|
||||
this->take_focus();
|
||||
focused=0;
|
||||
}
|
||||
}
|
||||
|
||||
// Right button - call context menu
|
||||
if (Fl::event_button() == 3) {
|
||||
Fl::event_is_click(0); // prevent doubleclicking with right button
|
||||
if (context_callback_) context_callback_(this, (void*)path(get_focus()));
|
||||
}
|
||||
|
||||
// Double-click operation
|
||||
if (Fl::event_clicks()) {
|
||||
do_callback();
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
// ------------------------------------------------
|
||||
// Drag&drop support (apart from FL_DRAG)
|
||||
// ------------------------------------------------
|
||||
|
||||
// If paste_callback_ isn't set, that means we don't support dnd
|
||||
if (paste_callback_) {
|
||||
if (e==FL_DND_ENTER) { EDEBUG(DBG"FL_DND_ENTER\n"); }
|
||||
if (e==FL_DND_DRAG) { EDEBUG(DBG"FL_DND_DRAG\n"); }
|
||||
if (e==FL_DND_RELEASE) { EDEBUG(DBG"FL_DND_RELEASE\n"); }
|
||||
// Let the window manager know that we accept dnd
|
||||
if (e==FL_DND_ENTER||e==FL_DND_DRAG) return 1;
|
||||
|
||||
/* // Scroll the view by dragging to border
|
||||
if (e==FL_DND_LEAVE) {
|
||||
if (Fl::event_y()<y())
|
||||
position(position()-1);
|
||||
if (Fl::event_y()>y()+h())
|
||||
position(position()+1);
|
||||
return 1;
|
||||
}*/
|
||||
|
||||
static bool dndrelease=false;
|
||||
if (e==FL_DND_RELEASE) {
|
||||
EDEBUG(DBG"FL_DND_RELEASE '%s'\n", Fl::event_text());
|
||||
// Sometimes drag is accidental
|
||||
if (abs(Fl::event_x()-dragx)>MIN_DISTANCE_FOR_DND || abs(Fl::event_y()-dragy)>MIN_DISTANCE_FOR_DND) {
|
||||
dndrelease=true;
|
||||
Fl::paste(*this,0);
|
||||
}
|
||||
|
||||
return 0;
|
||||
// return 1 would call Fl::paste(*belowmouse(),0) (see fl_dnd_x.cxx around line 168).
|
||||
// In our case that could be catastrophic
|
||||
}
|
||||
|
||||
if (e==FL_PASTE) {
|
||||
EDEBUG(DBG"FL_PASTE\n");
|
||||
if (!Fl::event_text() || !Fl::event_length()) return 1;
|
||||
EDEBUG(DBG"1 '%s' (%d)\n",Fl::event_text(),Fl::event_length());
|
||||
|
||||
// Paste comes from menu/keyboard
|
||||
if (!dndrelease) {
|
||||
paste_callback_(0); // 0 = current dir
|
||||
return 1;
|
||||
}
|
||||
dndrelease=false;
|
||||
|
||||
// Where is the user dropping?
|
||||
// It it's inside an item, try pasting
|
||||
int ex=Fl::event_x(); int ey=Fl::event_y();
|
||||
for (int i=0; i<children(); i++) {
|
||||
Fl_Button* b = (Fl_Button*)child(i);
|
||||
if (ex>b->x()+SELECTION_EDGE && ex<b->x()+b->w()-SELECTION_EDGE && ey>b->y()+SELECTION_EDGE && ey<b->y()+b->h()-SELECTION_EDGE) {
|
||||
paste_callback_(path(i+1));
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
// Nothing found... assume current directory
|
||||
paste_callback_(0);
|
||||
return 0;
|
||||
}
|
||||
|
||||
} // if(paste_callback_)...
|
||||
|
||||
|
||||
// End of handle()
|
||||
#ifdef USE_FLU_WRAP_GROUP
|
||||
return Flu_Wrap_Group::handle(e);
|
||||
#else
|
||||
return edelib::ExpandableGroup::handle(e);
|
||||
#endif
|
||||
|
||||
}
|
||||
|
||||
|
||||
/* $Id */
|
||||
Reference in New Issue
Block a user