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Added a button to copy the gamepad mapping to the clipboard

This commit is contained in:
Sam Lantinga 2023-07-11 10:04:25 -07:00
parent 4f122c6e39
commit 4feb2f4b1a
3 changed files with 262 additions and 0 deletions
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204
test/gamepadutils.c
View File

@ -26,6 +26,7 @@
#include "gamepad_button_small.h"
#include "gamepad_axis.h"
#include "gamepad_axis_arrow.h"
#include "gamepad_button_background.h"
/* This is indexed by SDL_GamepadButton. */
static const struct
@ -612,6 +613,10 @@ void RenderGamepadDisplay(GamepadDisplay *ctx, SDL_Gamepad *gamepad)
SDL_bool has_accel;
SDL_bool has_gyro;
if (!ctx) {
return;
}
SDL_GetRenderDrawColor(ctx->renderer, &r, &g, &b, &a);
x = ctx->area.x + margin;
@ -776,6 +781,12 @@ void RenderGamepadDisplay(GamepadDisplay *ctx, SDL_Gamepad *gamepad)
void DestroyGamepadDisplay(GamepadDisplay *ctx)
{
if (!ctx) {
return;
}
SDL_DestroyTexture(ctx->button_texture);
SDL_DestroyTexture(ctx->arrow_texture);
SDL_free(ctx);
}
@ -834,6 +845,10 @@ void RenderJoystickDisplay(JoystickDisplay *ctx, SDL_Joystick *joystick)
SDL_FRect dst, rect;
Uint8 r, g, b, a;
if (!ctx) {
return;
}
SDL_GetRenderDrawColor(ctx->renderer, &r, &g, &b, &a);
x = (float)ctx->area.x + margin;
@ -993,6 +1008,195 @@ void RenderJoystickDisplay(JoystickDisplay *ctx, SDL_Joystick *joystick)
void DestroyJoystickDisplay(JoystickDisplay *ctx)
{
if (!ctx) {
return;
}
SDL_DestroyTexture(ctx->button_texture);
SDL_DestroyTexture(ctx->arrow_texture);
SDL_free(ctx);
}
struct GamepadButton
{
SDL_Renderer *renderer;
SDL_Texture *background;
int background_width;
int background_height;
SDL_FRect area;
char *label;
int label_width;
int label_height;
SDL_bool highlight;
};
GamepadButton *CreateGamepadButton(SDL_Renderer *renderer, const char *label)
{
GamepadButton *ctx = SDL_calloc(1, sizeof(*ctx));
if (ctx) {
ctx->renderer = renderer;
ctx->background = CreateTexture(renderer, gamepad_button_background_bmp, gamepad_button_background_bmp_len);
SDL_QueryTexture(ctx->background, NULL, NULL, &ctx->background_width, &ctx->background_height);
ctx->label = SDL_strdup(label);
ctx->label_width = (int)(FONT_CHARACTER_SIZE * SDL_strlen(label));
ctx->label_height = FONT_CHARACTER_SIZE;
}
return ctx;
}
void SetGamepadButtonArea(GamepadButton *ctx, int x, int y, int w, int h)
{
if (!ctx) {
return;
}
ctx->area.x = (float)x;
ctx->area.y = (float)y;
ctx->area.w = (float)w;
ctx->area.h = (float)h;
}
void SetGamepadButtonHighlight(GamepadButton *ctx, SDL_bool highlight)
{
if (!ctx) {
return;
}
ctx->highlight = highlight;
}
int GetGamepadButtonLabelWidth(GamepadButton *ctx)
{
if (!ctx) {
return 0;
}
return ctx->label_width;
}
int GetGamepadButtonLabelHeight(GamepadButton *ctx)
{
if (!ctx) {
return 0;
}
return ctx->label_height;
}
SDL_bool GamepadButtonContains(GamepadButton *ctx, float x, float y)
{
SDL_FPoint point;
if (!ctx) {
return SDL_FALSE;
}
point.x = x;
point.y = y;
return SDL_PointInRectFloat(&point, &ctx->area);
}
void RenderGamepadButton(GamepadButton *ctx)
{
SDL_FRect src, dst;
float one_third_src_width;
float one_third_src_height;
if (!ctx) {
return;
}
one_third_src_width = (float)ctx->background_width / 3;
one_third_src_height = (float)ctx->background_height / 3;
if (ctx->highlight) {
SDL_SetTextureColorMod(ctx->background, 10, 255, 21);
} else {
SDL_SetTextureColorMod(ctx->background, 255, 255, 255);
}
/* Top left */
src.x = 0.0f;
src.y = 0.0f;
src.w = one_third_src_width;
src.h = one_third_src_height;
dst.x = ctx->area.x;
dst.y = ctx->area.y;
dst.w = src.w;
dst.h = src.h;
SDL_RenderTexture(ctx->renderer, ctx->background, &src, &dst);
/* Bottom left */
src.y = (float)ctx->background_height - src.h;
dst.y = ctx->area.y + ctx->area.h - dst.h;
SDL_RenderTexture(ctx->renderer, ctx->background, &src, &dst);
/* Bottom right */
src.x = (float)ctx->background_width - src.w;
dst.x = ctx->area.x + ctx->area.w - dst.w;
SDL_RenderTexture(ctx->renderer, ctx->background, &src, &dst);
/* Top right */
src.y = 0.0f;
dst.y = ctx->area.y;
SDL_RenderTexture(ctx->renderer, ctx->background, &src, &dst);
/* Left */
src.x = 0.0f;
src.y = one_third_src_height;
dst.x = ctx->area.x;
dst.y = ctx->area.y + one_third_src_height;
dst.w = one_third_src_width;
dst.h = (float)ctx->area.h - 2 * one_third_src_height;
SDL_RenderTexture(ctx->renderer, ctx->background, &src, &dst);
/* Right */
src.x = (float)ctx->background_width - one_third_src_width;
dst.x = ctx->area.x + ctx->area.w - one_third_src_width;
SDL_RenderTexture(ctx->renderer, ctx->background, &src, &dst);
/* Top */
src.x = one_third_src_width;
src.y = 0.0f;
dst.x = ctx->area.x + one_third_src_width;
dst.y = ctx->area.y;
dst.w = ctx->area.w - 2 * one_third_src_width;
dst.h = one_third_src_height;
SDL_RenderTexture(ctx->renderer, ctx->background, &src, &dst);
/* Bottom */
src.y = (float)ctx->background_height - src.h;
dst.y = ctx->area.y + ctx->area.h - one_third_src_height;
SDL_RenderTexture(ctx->renderer, ctx->background, &src, &dst);
/* Center */
src.x = one_third_src_width;
src.y = one_third_src_height;
dst.x = ctx->area.x + one_third_src_width;
dst.y = ctx->area.y + one_third_src_height;
dst.w = ctx->area.w - 2 * one_third_src_width;
dst.h = (float)ctx->area.h - 2 * one_third_src_height;
SDL_RenderTexture(ctx->renderer, ctx->background, &src, &dst);
/* Label */
dst.x = ctx->area.x + ctx->area.w / 2 - ctx->label_width / 2;
dst.y = ctx->area.y + ctx->area.h / 2 - ctx->label_height / 2;
SDLTest_DrawString(ctx->renderer, dst.x, dst.y, ctx->label);
}
void DestroyGamepadButton(GamepadButton *ctx)
{
if (!ctx) {
return;
}
SDL_DestroyTexture(ctx->background);
SDL_free(ctx->label);
SDL_free(ctx);
}

12
test/gamepadutils.h
View File

@ -54,3 +54,15 @@ extern void SetJoystickDisplayArea(JoystickDisplay *ctx, int x, int y, int w, in
extern void RenderJoystickDisplay(JoystickDisplay *ctx, SDL_Joystick *joystick);
extern void DestroyJoystickDisplay(JoystickDisplay *ctx);
/* Simple buttons */
typedef struct GamepadButton GamepadButton;
extern GamepadButton *CreateGamepadButton(SDL_Renderer *renderer, const char *label);
extern void SetGamepadButtonArea(GamepadButton *ctx, int x, int y, int w, int h);
extern void SetGamepadButtonHighlight(GamepadButton *ctx, SDL_bool highlight);
extern int GetGamepadButtonLabelWidth(GamepadButton *ctx);
extern int GetGamepadButtonLabelHeight(GamepadButton *ctx);
extern SDL_bool GamepadButtonContains(GamepadButton *ctx, float x, float y);
extern void RenderGamepadButton(GamepadButton *ctx);
extern void DestroyGamepadButton(GamepadButton *ctx);

46
test/testgamepad.c
View File

@ -27,6 +27,8 @@
#define TITLE_HEIGHT 48
#define PANEL_SPACING 25
#define PANEL_WIDTH 250
#define BUTTON_MARGIN 8
#define BUTTON_PADDING 12
#define GAMEPAD_WIDTH 512
#define GAMEPAD_HEIGHT 480
@ -49,6 +51,8 @@ static SDL_Renderer *screen = NULL;
static GamepadImage *image = NULL;
static GamepadDisplay *gamepad_elements = NULL;
static JoystickDisplay *joystick_elements = NULL;
static GamepadButton *copy_button = NULL;
static SDL_bool in_copy_button = SDL_FALSE;
static SDL_bool retval = SDL_FALSE;
static SDL_bool done = SDL_FALSE;
static SDL_bool set_LED = SDL_FALSE;
@ -594,6 +598,33 @@ static void DrawGamepadInfo(SDL_Renderer *renderer)
}
}
static void CopyMappingToClipboard()
{
char *mapping = SDL_GetGamepadMapping(gamepad);
if (mapping) {
const char *name = SDL_GetGamepadName(gamepad);
char *wildcard = SDL_strchr(mapping, '*');
if (wildcard && name && *name) {
char *text;
size_t size;
/* Personalize the mapping for this controller */
*wildcard++ = '\0';
size = SDL_strlen(mapping) + SDL_strlen(name) + SDL_strlen(wildcard) + 1;
text = SDL_malloc(size);
if (!text) {
return;
}
SDL_snprintf(text, size, "%s%s%s", mapping, name, wildcard);
SDL_SetClipboardText(text);
SDL_free(text);
} else {
SDL_SetClipboardText(mapping);
}
SDL_free(mapping);
}
}
static void loop(void *arg)
{
SDL_Event event;
@ -687,18 +718,24 @@ static void loop(void *arg)
if (virtual_joystick) {
VirtualGamepadMouseDown(event.button.x, event.button.y);
}
SetGamepadButtonHighlight(copy_button, GamepadButtonContains(copy_button, event.button.x, event.button.y));
break;
case SDL_EVENT_MOUSE_BUTTON_UP:
if (virtual_joystick) {
VirtualGamepadMouseUp(event.button.x, event.button.y);
}
if (GamepadButtonContains(copy_button, event.button.x, event.button.y)) {
CopyMappingToClipboard();
}
SetGamepadButtonHighlight(copy_button, SDL_FALSE);
break;
case SDL_EVENT_MOUSE_MOTION:
if (virtual_joystick) {
VirtualGamepadMouseMotion(event.motion.x, event.motion.y);
}
SetGamepadButtonHighlight(copy_button, event.motion.state && GamepadButtonContains(copy_button, event.motion.x, event.motion.y));
break;
case SDL_EVENT_KEY_DOWN:
@ -743,6 +780,8 @@ static void loop(void *arg)
RenderGamepadDisplay(gamepad_elements, gamepad);
RenderJoystickDisplay(joystick_elements, SDL_GetGamepadJoystick(gamepad));
RenderGamepadButton(copy_button);
DrawGamepadInfo(screen);
/* Update LED based on left thumbstick position */
@ -811,6 +850,7 @@ int main(int argc, char *argv[])
int i;
float content_scale;
int screen_width, screen_height;
int button_width, button_height;
int gamepad_index = -1;
SDLTest_CommonState *state;
@ -924,6 +964,11 @@ int main(int argc, char *argv[])
joystick_elements = CreateJoystickDisplay(screen);
SetJoystickDisplayArea(joystick_elements, PANEL_WIDTH + PANEL_SPACING + GAMEPAD_WIDTH + PANEL_SPACING, TITLE_HEIGHT, PANEL_WIDTH, GAMEPAD_HEIGHT);
copy_button = CreateGamepadButton(screen, "Copy to Clipboard");
button_width = GetGamepadButtonLabelWidth(copy_button) + 2 * BUTTON_PADDING;
button_height = GetGamepadButtonLabelHeight(copy_button) + 2 * BUTTON_PADDING;
SetGamepadButtonArea(copy_button, BUTTON_MARGIN, SCREEN_HEIGHT - BUTTON_MARGIN - button_height, button_width, button_height);
/* Process the initial gamepad list */
loop(NULL);
@ -953,6 +998,7 @@ int main(int argc, char *argv[])
DestroyGamepadImage(image);
DestroyGamepadDisplay(gamepad_elements);
DestroyJoystickDisplay(joystick_elements);
DestroyGamepadButton(copy_button);
SDL_DestroyRenderer(screen);
SDL_DestroyWindow(window);
SDL_QuitSubSystem(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK | SDL_INIT_GAMEPAD);