Wed, 27 Nov 2024 13:28:21 +0100
implement table dnd (GTK)
/* * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. * * Copyright 2017 Olaf Wintermann. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include <stdio.h> #include <stdlib.h> #include <string.h> #include "dnd.h" #include <cx/buffer.h> #include <cx/array_list.h> #ifdef UI_GTK2LEGACY static gboolean selection_data_set_uris(GtkSelectionData *selection_data, char **uris) { CxBuffer *buf = cxBufferCreate(NULL, 1024, cxDefaultAllocator, CX_BUFFER_FREE_CONTENTS|CX_BUFFER_AUTO_EXTEND); char *uri; int i = 0; while((uri = uris[i]) != NULL) { cxBufferPutString(buf, uri); cxBufferPutString(buf, "\r\n"); } GdkAtom type = gdk_atom_intern("text/uri-list", FALSE); gtk_selection_data_set(selection_data, type, 8, (guchar*)buf->space, buf->pos); cxBufferFree(buf); return TRUE; } static char** selection_data_get_uris(GtkSelectionData *selection_data) { // TODO: implement return NULL; } #define gtk_selection_data_set_uris selection_data_set_uris #define gtk_selection_data_get_uris selection_data_get_uris #endif /* void ui_selection_settext(UiSelection *sel, char *str, int len) { // TODO: handle error? gtk_selection_data_set_text(sel->data, str, len); } void ui_selection_seturis(UiSelection *sel, char **uris, int nelm) { char **uriarray = calloc(nelm+1, sizeof(char*)); for(int i=0;i<nelm;i++) { uriarray[i] = uris[i]; } uriarray[nelm] = NULL; gtk_selection_data_set_uris(sel->data, uriarray); } char* ui_selection_gettext(UiSelection *sel) { guchar *text = gtk_selection_data_get_text(sel->data); if(text) { char *textcp = strdup((char*)text); g_free(text); return textcp; } return NULL; } char** ui_selection_geturis(UiSelection *sel, size_t *nelm) { gchar **uris = gtk_selection_data_get_uris(sel->data); if(uris) { size_t al = 32; char **array = malloc(al * sizeof(char*)); size_t i = 0; while(uris[i] != NULL) { if(i >= al) { al *= 2; array = realloc(array, al * sizeof(char*)); } array[i] = strdup((char*)uris[i]); i++; } *nelm = i; g_strfreev(uris); return array; } return NULL; } */ #if GTK_MAJOR_VERSION >= 4 void ui_selection_settext(UiDnD *sel, char *str, int len) { if(!sel->providers) { return; } if(len == -1) { len = strlen(str); } GBytes *bytes = g_bytes_new(str, len); GdkContentProvider *provider = gdk_content_provider_new_for_bytes("text/plain;charset=utf-8", bytes); g_bytes_unref(bytes); cxListAdd(sel->providers, &provider); } void ui_selection_seturis(UiDnD *sel, char **uris, int nelm) { if(!sel->providers) { return; } GFile **files = calloc(nelm, sizeof(GFile*)); for(int i=0;i<nelm;i++) { GFile *file = uris[i][0] == '/' ? g_file_new_for_path(uris[i]) : g_file_new_for_uri(uris[i]); files[i] = file; } GdkFileList *list = gdk_file_list_new_from_array(files, nelm); GdkContentProvider *provider = gdk_content_provider_new_typed(GDK_TYPE_FILE_LIST, list); cxListAdd(sel->providers, &provider); g_slist_free_full ((GSList*)list, g_object_unref); free(files); } char* ui_selection_gettext(UiDnD *sel) { if(!sel->value) { return NULL; } if(G_VALUE_HOLDS(sel->value, G_TYPE_STRING)) { const char *str = g_value_get_string(sel->value); return str ? strdup(str) : NULL; } return NULL; } UiFileList ui_selection_geturis(UiDnD *sel) { if(!sel->value) { return (UiFileList){NULL,0}; } if(G_VALUE_HOLDS(sel->value, GDK_TYPE_FILE_LIST)) { GSList *list = g_value_get_boxed(sel->value); if(!list) { return (UiFileList){NULL,0}; } guint size = g_slist_length(list); UiFileList flist; flist.nfiles = size; flist.files = calloc(size, sizeof(char*)); int i=0; while(list) { GFile *file = list->data; char *uri = g_file_get_uri(file); flist.files[i++] = strdup(uri); g_free(uri); list = list->next; } return flist; } return (UiFileList){NULL,0}; } UiDnD* ui_create_dnd(void) { UiDnD *dnd = malloc(sizeof(UiDnD)); memset(dnd, 0, sizeof(UiDnD)); dnd->providers = cxArrayListCreateSimple(sizeof(void*), 16); dnd->selected_action = 0; dnd->delete = FALSE; return dnd; } void ui_dnd_free(UiDnD *dnd) { cxListDestroy(dnd->providers); free(dnd); } UiDnDAction ui_dnd_result(UiDnD *dnd) { switch(dnd->selected_action) { case 0: return UI_DND_ACTION_NONE; case GDK_ACTION_COPY: return UI_DND_ACTION_COPY; case GDK_ACTION_MOVE: return UI_DND_ACTION_MOVE; case GDK_ACTION_LINK: return UI_DND_ACTION_LINK; default: break; } return UI_DND_ACTION_CUSTOM; } #else void ui_selection_settext(UiDnD *sel, char *str, int len) { gtk_selection_data_set_text(sel->data, str, len); } void ui_selection_seturis(UiDnD *sel, char **uris, int nelm) { char **uriarray = calloc(nelm+1, sizeof(char*)); for(int i=0;i<nelm;i++) { uriarray[i] = uris[i]; } uriarray[nelm] = NULL; gtk_selection_data_set_uris(sel->data, uriarray); free(uriarray); } char* ui_selection_gettext(UiDnD *sel) { if(!sel->data) { return NULL; } guchar *text = gtk_selection_data_get_text(sel->data); if(text) { char *textcp = strdup((char*)text); g_free(text); return textcp; } return NULL; } UiFileList ui_selection_geturis(UiDnD *sel) { if(!sel->data) { return (UiFileList){NULL,0}; } gchar **uris = gtk_selection_data_get_uris(sel->data); if(uris) { size_t al = 32; char **array = malloc(al * sizeof(char*)); size_t i = 0; while(uris[i] != NULL) { if(i >= al) { al *= 2; array = realloc(array, al * sizeof(char*)); } array[i] = strdup((char*)uris[i]); i++; } g_strfreev(uris); return (UiFileList){array,i}; } return (UiFileList){NULL,0}; } UiDnDAction ui_dnd_result(UiDnD *dnd) { switch(dnd->selected_action) { case 0: return UI_DND_ACTION_NONE; case GDK_ACTION_COPY: return UI_DND_ACTION_COPY; case GDK_ACTION_MOVE: return UI_DND_ACTION_MOVE; case GDK_ACTION_LINK: return UI_DND_ACTION_LINK; default: break; } return UI_DND_ACTION_CUSTOM; } UiDnD* ui_create_dnd(void) { UiDnD *dnd = malloc(sizeof(UiDnD)); memset(dnd, 0, sizeof(UiDnD)); return dnd; } void ui_dnd_free(UiDnD *dnd) { free(dnd); } #endif UiBool ui_dnd_need_delete(UiDnD *dnd) { return dnd->delete; } void ui_dnd_accept(UiDnD *dnd, UiBool accept) { dnd->accept = accept; }