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add an append operation to cut buffer handling

This commit is contained in:
Todd A. Pratt 2016-01-30 09:34:46 -05:00
parent dc03baa0d3
commit 876609901a
2 changed files with 32 additions and 15 deletions

View File

@ -582,25 +582,40 @@ void gui_entry_erase(GUI_ENTRY_REC *entry, int size, CUTBUFFER_UPDATE_OP update_
if (size == 0 || entry->pos < size) if (size == 0 || entry->pos < size)
return; return;
if (entry->cutbuffer_len == 0) {
update_cutbuffer = CUTBUFFER_UPDATE_REPLACE;
}
int cutbuffer_new_size = entry->cutbuffer_len + size;
unichar *tmpcutbuffer = entry->cutbuffer;
switch (update_cutbuffer) { switch (update_cutbuffer) {
case CUTBUFFER_UPDATE_APPEND:
entry->cutbuffer = g_new(unichar, cutbuffer_new_size+1);
if (entry->cutbuffer) {
memcpy(entry->cutbuffer, tmpcutbuffer,
entry->cutbuffer_len * sizeof(unichar));
memcpy(entry->cutbuffer + entry->cutbuffer_len * sizeof(unichar),
entry->text + entry->pos - size, size * sizeof(unichar));
entry->cutbuffer_len = cutbuffer_new_size;
entry->cutbuffer[cutbuffer_new_size] = '\0';
g_free(tmpcutbuffer);
}
break;
case CUTBUFFER_UPDATE_PREPEND: case CUTBUFFER_UPDATE_PREPEND:
if (entry->cutbuffer_len) { entry->cutbuffer = g_new(unichar, cutbuffer_new_size+1);
int cutbuffer_new_size = entry->cutbuffer_len + size; if (entry->cutbuffer) {
unichar *tmpcutbuffer = entry->cutbuffer; memcpy(entry->cutbuffer, entry->text + entry->pos - size,
entry->cutbuffer = g_new(unichar, cutbuffer_new_size+1); size * sizeof(unichar));
memcpy(entry->cutbuffer + size, tmpcutbuffer,
entry->cutbuffer_len * sizeof(unichar));
memcpy(entry->cutbuffer, entry->text + entry->pos - size, entry->cutbuffer_len = cutbuffer_new_size;
size * sizeof(unichar)); entry->cutbuffer[cutbuffer_new_size] = '\0';
memcpy(entry->cutbuffer + size, tmpcutbuffer, g_free(tmpcutbuffer);
entry->cutbuffer_len * sizeof(unichar)); }
break;
entry->cutbuffer_len = cutbuffer_new_size;
entry->cutbuffer[cutbuffer_new_size] = '\0';
g_free(tmpcutbuffer);
break;
}
/* fall through to REPLACE if cutbuffer_len was 0 */
case CUTBUFFER_UPDATE_REPLACE: case CUTBUFFER_UPDATE_REPLACE:
/* put erased text to cutbuffer */ /* put erased text to cutbuffer */
if (entry->cutbuffer_len < size) { if (entry->cutbuffer_len < size) {
@ -613,6 +628,7 @@ void gui_entry_erase(GUI_ENTRY_REC *entry, int size, CUTBUFFER_UPDATE_OP update_
memcpy(entry->cutbuffer, entry->text + entry->pos - size, memcpy(entry->cutbuffer, entry->text + entry->pos - size,
size * sizeof(unichar)); size * sizeof(unichar));
break; break;
case CUTBUFFER_UPDATE_NOOP: case CUTBUFFER_UPDATE_NOOP:
break; break;
} }

View File

@ -23,6 +23,7 @@ typedef struct {
typedef enum { typedef enum {
CUTBUFFER_UPDATE_NOOP, CUTBUFFER_UPDATE_NOOP,
CUTBUFFER_UPDATE_REPLACE, CUTBUFFER_UPDATE_REPLACE,
CUTBUFFER_UPDATE_APPEND,
CUTBUFFER_UPDATE_PREPEND CUTBUFFER_UPDATE_PREPEND
} CUTBUFFER_UPDATE_OP; } CUTBUFFER_UPDATE_OP;