Add clipboard support to vga terminal
This commit is contained in:
K. Lange
parent
b418132c0c
commit
9c4063563f
@ -28,6 +28,7 @@
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#include <toaru/kbd.h>
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#include <toaru/graphics.h>
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#include <toaru/termemu.h>
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#include <toaru/mouse.h>
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#include "vga-palette.h"
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@ -51,6 +52,13 @@ uint8_t _hold_out = 0; /* state indicator on last cell ignore \n */
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uint64_t mouse_ticks = 0;
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int selection = 0;
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int selection_start_x = 0;
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int selection_start_y = 0;
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int selection_end_x = 0;
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int selection_end_y = 0;
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char * selection_text = NULL;
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#define char_width 1
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#define char_height 1
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@ -154,6 +162,147 @@ void set_title(char * c) {
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/* Do nothing */
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}
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static void cell_redraw(uint16_t x, uint16_t y);
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static void cell_redraw_inverted(uint16_t x, uint16_t y);
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void iterate_selection(void (*func)(uint16_t x, uint16_t y)) {
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if (selection_end_y < selection_start_y) {
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for (int x = selection_end_x; x < term_width; ++x) {
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func(x, selection_end_y);
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}
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for (int y = selection_end_y + 1; y < selection_start_y; ++y) {
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for (int x = 0; x < term_width; ++x) {
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func(x, y);
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}
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}
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for (int x = 0; x <= selection_start_x; ++x) {
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func(x, selection_start_y);
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}
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} else if (selection_start_y == selection_end_y) {
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if (selection_start_x > selection_end_x) {
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for (int x = selection_end_x; x <= selection_start_x; ++x) {
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func(x, selection_start_y);
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}
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} else {
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for (int x = selection_start_x; x <= selection_end_x; ++x) {
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func(x, selection_start_y);
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}
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}
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} else {
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for (int x = selection_start_x; x < term_width; ++x) {
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func(x, selection_start_y);
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}
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for (int y = selection_start_y + 1; y < selection_end_y; ++y) {
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for (int x = 0; x < term_width; ++x) {
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func(x, y);
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}
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}
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for (int x = 0; x <= selection_end_x; ++x) {
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func(x, selection_end_y);
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}
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}
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}
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void unredraw_selection(void) {
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iterate_selection(cell_redraw);
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}
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void redraw_selection(void) {
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iterate_selection(cell_redraw_inverted);
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}
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static int _selection_count = 0;
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static int _selection_i = 0;
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static int to_eight(uint32_t codepoint, char * out) {
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memset(out, 0x00, 7);
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if (codepoint < 0x0080) {
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out[0] = (char)codepoint;
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} else if (codepoint < 0x0800) {
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out[0] = 0xC0 | (codepoint >> 6);
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out[1] = 0x80 | (codepoint & 0x3F);
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} else if (codepoint < 0x10000) {
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out[0] = 0xE0 | (codepoint >> 12);
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out[1] = 0x80 | ((codepoint >> 6) & 0x3F);
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out[2] = 0x80 | (codepoint & 0x3F);
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} else if (codepoint < 0x200000) {
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out[0] = 0xF0 | (codepoint >> 18);
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out[1] = 0x80 | ((codepoint >> 12) & 0x3F);
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out[2] = 0x80 | ((codepoint >> 6) & 0x3F);
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out[3] = 0x80 | ((codepoint) & 0x3F);
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} else if (codepoint < 0x4000000) {
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out[0] = 0xF8 | (codepoint >> 24);
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out[1] = 0x80 | (codepoint >> 18);
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out[2] = 0x80 | ((codepoint >> 12) & 0x3F);
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out[3] = 0x80 | ((codepoint >> 6) & 0x3F);
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out[4] = 0x80 | ((codepoint) & 0x3F);
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} else {
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out[0] = 0xF8 | (codepoint >> 30);
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out[1] = 0x80 | ((codepoint >> 24) & 0x3F);
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out[2] = 0x80 | ((codepoint >> 18) & 0x3F);
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out[3] = 0x80 | ((codepoint >> 12) & 0x3F);
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out[4] = 0x80 | ((codepoint >> 6) & 0x3F);
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out[5] = 0x80 | ((codepoint) & 0x3F);
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}
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return strlen(out);
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}
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void count_selection(uint16_t x, uint16_t y) {
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term_cell_t * cell = (term_cell_t *)((uintptr_t)term_buffer + (y * term_width + x) * sizeof(term_cell_t));
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if (((uint32_t *)cell)[0] != 0x00000000) {
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char tmp[7];
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_selection_count += to_eight(cell->c, tmp);
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}
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if (x == term_width - 1) {
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_selection_count++;
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}
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}
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void write_selection(uint16_t x, uint16_t y) {
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term_cell_t * cell = (term_cell_t *)((uintptr_t)term_buffer + (y * term_width + x) * sizeof(term_cell_t));
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if (((uint32_t *)cell)[0] != 0x00000000) {
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char tmp[7];
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int count = to_eight(cell->c, tmp);
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for (int i = 0; i < count; ++i) {
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selection_text[_selection_i] = tmp[i];
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_selection_i++;
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}
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}
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if (x == term_width - 1) {
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selection_text[_selection_i] = '\n';;
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_selection_i++;
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}
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}
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char * copy_selection(void) {
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_selection_count = 0;
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iterate_selection(count_selection);
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if (selection_text) {
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free(selection_text);
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}
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if (_selection_count == 0) {
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return NULL;
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}
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selection_text = malloc(_selection_count + 1);
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selection_text[_selection_count] = '\0';
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_selection_i = 0;
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iterate_selection(write_selection);
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if (selection_text[_selection_count-1] == '\n') {
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/* Don't end on a line feed */
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selection_text[_selection_count-1] = '\0';
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}
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return selection_text;
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}
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void input_buffer_stuff(char * str) {
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size_t s = strlen(str) + 1;
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write(fd_master, str, s);
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@ -633,6 +782,25 @@ void handle_input_s(char * c) {
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void key_event(int ret, key_event_t * event) {
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if (ret) {
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/* Special keys */
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if ((event->modifiers & KEY_MOD_LEFT_SHIFT || event->modifiers & KEY_MOD_RIGHT_SHIFT) &&
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(event->modifiers & KEY_MOD_LEFT_CTRL || event->modifiers & KEY_MOD_RIGHT_CTRL) &&
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(event->keycode == 'c')) {
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if (selection) {
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/* Copy selection */
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copy_selection();
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}
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return;
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}
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if ((event->modifiers & KEY_MOD_LEFT_SHIFT || event->modifiers & KEY_MOD_RIGHT_SHIFT) &&
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(event->modifiers & KEY_MOD_LEFT_CTRL || event->modifiers & KEY_MOD_RIGHT_CTRL) &&
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(event->keycode == 'v')) {
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/* Paste selection */
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if (selection_text) {
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handle_input_s(selection_text);
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}
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return;
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}
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if (event->modifiers & KEY_MOD_LEFT_ALT || event->modifiers & KEY_MOD_RIGHT_ALT) {
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handle_input('\033');
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}
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@ -785,6 +953,65 @@ void check_for_exit(void) {
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write(fd_slave, exit_message, sizeof(exit_message));
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}
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static int mouse_x = 0;
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static int mouse_y = 0;
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static int last_mouse_buttons = 0;
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static int mouse_is_dragging = 0;
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#define MOUSE_X_R 820
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#define MOUSE_Y_R 2730
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static int old_x = 0;
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static int old_y = 0;
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void handle_mouse_event(mouse_device_packet_t * packet) {
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if (mouse_is_dragging) {
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if (packet->buttons & LEFT_CLICK) {
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/* still dragging */
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unredraw_selection();
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selection_end_x = mouse_x;
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selection_end_y = mouse_y;
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redraw_selection();
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} else {
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mouse_is_dragging = 0;
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}
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} else {
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if (packet->buttons & LEFT_CLICK) {
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term_redraw_all();
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selection_start_x = mouse_x;
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selection_start_y = mouse_y;
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selection_end_x = mouse_x;
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selection_end_y = mouse_y;
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selection = 1;
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redraw_selection();
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mouse_is_dragging = 1;
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} else {
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cell_redraw(old_x, old_y);
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cell_redraw_inverted(mouse_x, mouse_y);
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old_x = mouse_x;
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old_y = mouse_y;
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}
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}
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}
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void handle_mouse(mouse_device_packet_t * packet) {
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mouse_x += packet->x_difference;
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mouse_y -= packet->y_difference;
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if (mouse_x < 0) mouse_x = 0;
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if (mouse_y < 0) mouse_y = 0;
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if (mouse_x >= term_width) mouse_x = term_width - 1;
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if (mouse_y >= term_height) mouse_y = term_height - 1;
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handle_mouse_event(packet);
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}
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void handle_mouse_abs(mouse_device_packet_t * packet) {
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mouse_x = packet->x_difference / MOUSE_X_R;
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mouse_y = packet->y_difference / MOUSE_Y_R;
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handle_mouse_event(packet);
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}
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int main(int argc, char ** argv) {
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@ -869,6 +1096,15 @@ int main(int argc, char ** argv) {
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int kfd = open("/dev/kbd", O_RDONLY);
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key_event_t event;
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char c;
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int vmmouse = 0;
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mouse_device_packet_t packet;
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int mfd = open("/dev/mouse", O_RDONLY);
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int amfd = open("/dev/absmouse", O_RDONLY);
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if (amfd == -1) {
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amfd = open("/dev/vmmouse", O_RDONLY);
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vmmouse = 1;
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}
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key_event_state_t kbd_state = {0};
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@ -880,12 +1116,12 @@ int main(int argc, char ** argv) {
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read(kfd, tmp, 1);
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}
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int fds[2] = {fd_master, kfd};
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int fds[] = {fd_master, kfd, mfd, amfd};
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unsigned char buf[1024];
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while (!exit_application) {
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int index = syscall_fswait2(2,fds,200);
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int index = syscall_fswait2(amfd == -1 ? 3 : 4,fds,200);
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check_for_exit();
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@ -903,6 +1139,25 @@ int main(int argc, char ** argv) {
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key_event(ret, &event);
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}
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} else if (index == 2) {
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/* mouse event */
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int r = read(mfd, (char *)&packet, sizeof(mouse_device_packet_t));
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if (r > 0) {
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last_mouse_buttons = packet.buttons;
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handle_mouse(&packet);
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}
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} else if (amfd != -1 && index == 3) {
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int r = read(amfd, (char *)&packet, sizeof(mouse_device_packet_t));
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if (r > 0) {
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if (!vmmouse) {
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packet.buttons = last_mouse_buttons & 0xF;
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} else {
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last_mouse_buttons = packet.buttons;
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}
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handle_mouse_abs(&packet);
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}
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continue;
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} else {
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maybe_flip_cursor();
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}
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}
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