mirror of https://github.com/libsdl-org/SDL
Show the gamepad bindings in testcontroller
This commit is contained in:
Sam Lantinga
parent
538292c1da
commit
e674d81844
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@ -606,113 +606,217 @@ void SetGamepadDisplayArea(GamepadDisplay *ctx, int x, int y, int w, int h)
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ctx->area.h = h;
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}
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static SDL_bool GetBindingString(const char *label, char *mapping, char *text, size_t size)
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{
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char *key;
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char *value, *end;
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size_t length;
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*text = '\0';
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if (!mapping) {
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return SDL_FALSE;
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}
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key = SDL_strstr(mapping, label);
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if (key) {
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value = key + SDL_strlen(label);
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end = SDL_strchr(value, ',');
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if (end) {
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length = (end - value);
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} else {
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length = SDL_strlen(value);
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}
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if (length >= size) {
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length = size - 1;
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}
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SDL_memcpy(text, value, length);
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text[length] = '\0';
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}
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return *text ? SDL_TRUE : SDL_FALSE;
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}
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static SDL_bool GetButtonBindingString(SDL_GamepadButton button, char *mapping, char *text, size_t size)
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{
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char label[32];
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SDL_snprintf(label, sizeof(label), "%s:", SDL_GetGamepadStringForButton(button));
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return GetBindingString(label, mapping, text, size);
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}
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static SDL_bool GetAxisBindingString(SDL_GamepadAxis axis, int direction, char *mapping, char *text, size_t size)
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{
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char label[32];
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/* Check for explicit half-axis */
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if (direction < 0) {
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SDL_snprintf(label, sizeof(label), "-%s:", SDL_GetGamepadStringForAxis(axis));
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} else {
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SDL_snprintf(label, sizeof(label), "+%s:", SDL_GetGamepadStringForAxis(axis));
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}
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if (GetBindingString(label, mapping, text, size)) {
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return SDL_TRUE;
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}
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/* Get the binding for the whole axis and split it if necessary */
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SDL_snprintf(label, sizeof(label), "%s:", SDL_GetGamepadStringForAxis(axis));
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if (!GetBindingString(label, mapping, text, size)) {
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return SDL_FALSE;
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}
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if (axis != SDL_GAMEPAD_AXIS_LEFT_TRIGGER && axis != SDL_GAMEPAD_AXIS_RIGHT_TRIGGER) {
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if (*text == 'a') {
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/* Split the axis */
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size_t length = SDL_strlen(text) + 1;
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if ((length + 1) <= size) {
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SDL_memmove(text + 1, text, length);
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if (direction > 0) {
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*text = '+';
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} else {
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*text = '-';
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}
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}
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} else if (*text == '~') {
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/* Invert directions and split the axis */
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if (direction > 0) {
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*text = '-';
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} else {
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*text = '+';
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}
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}
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}
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return SDL_TRUE;
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}
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void RenderGamepadDisplay(GamepadDisplay *ctx, SDL_Gamepad *gamepad)
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{
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float x, y;
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int i;
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char text[128];
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char text[128], binding[32];
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const float margin = 8.0f;
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const float center = ctx->area.w / 2.0f;
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const float arrow_extent = 48.0f;
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SDL_FRect dst, rect;
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Uint8 r, g, b, a;
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char *mapping;
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SDL_bool has_accel;
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SDL_bool has_gyro;
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if (!ctx || !gamepad) {
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if (!ctx) {
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return;
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}
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SDL_GetRenderDrawColor(ctx->renderer, &r, &g, &b, &a);
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mapping = SDL_GetGamepadMapping(gamepad);
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x = ctx->area.x + margin;
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y = ctx->area.y + margin;
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for (i = 0; i < SDL_GAMEPAD_BUTTON_MAX; ++i) {
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if (SDL_GamepadHasButton(gamepad, (SDL_GamepadButton)i)) {
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SDL_snprintf(text, sizeof(text), "%s:", gamepad_button_names[i]);
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SDLTest_DrawString(ctx->renderer, x + center - SDL_strlen(text) * FONT_CHARACTER_SIZE, y, text);
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SDL_GamepadButton button = (SDL_GamepadButton)i;
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if (SDL_GetGamepadButton(gamepad, (SDL_GamepadButton)i)) {
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SDL_SetTextureColorMod(ctx->button_texture, 10, 255, 21);
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} else {
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SDL_SetTextureColorMod(ctx->button_texture, 255, 255, 255);
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}
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SDL_snprintf(text, sizeof(text), "%s:", gamepad_button_names[i]);
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SDLTest_DrawString(ctx->renderer, x + center - SDL_strlen(text) * FONT_CHARACTER_SIZE, y, text);
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dst.x = x + center + 2.0f;
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dst.y = y + FONT_CHARACTER_SIZE / 2 - ctx->button_height / 2;
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dst.w = (float)ctx->button_width;
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dst.h = (float)ctx->button_height;
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SDL_RenderTexture(ctx->renderer, ctx->button_texture, NULL, &dst);
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y += ctx->button_height + 2.0f;
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if (SDL_GetGamepadButton(gamepad, button)) {
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SDL_SetTextureColorMod(ctx->button_texture, 10, 255, 21);
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} else {
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SDL_SetTextureColorMod(ctx->button_texture, 255, 255, 255);
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}
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dst.x = x + center + 2.0f;
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dst.y = y + FONT_CHARACTER_SIZE / 2 - ctx->button_height / 2;
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dst.w = (float)ctx->button_width;
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dst.h = (float)ctx->button_height;
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SDL_RenderTexture(ctx->renderer, ctx->button_texture, NULL, &dst);
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if (GetButtonBindingString(button, mapping, binding, sizeof(binding))) {
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dst.x += dst.w + 2 * margin;
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SDLTest_DrawString(ctx->renderer, dst.x, y, binding);
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}
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y += ctx->button_height + 2.0f;
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}
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for (i = 0; i < SDL_GAMEPAD_AXIS_MAX; ++i) {
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if (SDL_GamepadHasAxis(gamepad, (SDL_GamepadAxis)i)) {
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SDL_bool has_negative = (i != SDL_GAMEPAD_AXIS_LEFT_TRIGGER && i != SDL_GAMEPAD_AXIS_RIGHT_TRIGGER);
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Sint16 value = SDL_GetGamepadAxis(gamepad, (SDL_GamepadAxis)i);
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SDL_GamepadAxis axis = (SDL_GamepadAxis)i;
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SDL_bool has_negative = (axis != SDL_GAMEPAD_AXIS_LEFT_TRIGGER && axis != SDL_GAMEPAD_AXIS_RIGHT_TRIGGER);
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Sint16 value = SDL_GetGamepadAxis(gamepad, axis);
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SDL_snprintf(text, sizeof(text), "%s:", gamepad_axis_names[i]);
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SDLTest_DrawString(ctx->renderer, x + center - SDL_strlen(text) * FONT_CHARACTER_SIZE, y, text);
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dst.x = x + center + 2.0f;
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dst.y = y + FONT_CHARACTER_SIZE / 2 - ctx->arrow_height / 2;
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dst.w = (float)ctx->arrow_width;
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dst.h = (float)ctx->arrow_height;
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SDL_snprintf(text, sizeof(text), "%s:", gamepad_axis_names[i]);
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SDLTest_DrawString(ctx->renderer, x + center - SDL_strlen(text) * FONT_CHARACTER_SIZE, y, text);
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dst.x = x + center + 2.0f;
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dst.y = y + FONT_CHARACTER_SIZE / 2 - ctx->arrow_height / 2;
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dst.w = (float)ctx->arrow_width;
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dst.h = (float)ctx->arrow_height;
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if (has_negative) {
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if (value == SDL_MIN_SINT16) {
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SDL_SetTextureColorMod(ctx->arrow_texture, 10, 255, 21);
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} else {
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SDL_SetTextureColorMod(ctx->arrow_texture, 255, 255, 255);
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}
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SDL_RenderTextureRotated(ctx->renderer, ctx->arrow_texture, NULL, &dst, 0.0f, NULL, SDL_FLIP_HORIZONTAL);
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}
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dst.x += (float)ctx->arrow_width;
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SDL_SetRenderDrawColor(ctx->renderer, 200, 200, 200, SDL_ALPHA_OPAQUE);
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rect.x = dst.x + arrow_extent - 2.0f;
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rect.y = dst.y;
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rect.w = 4.0f;
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rect.h = (float)ctx->arrow_height;
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SDL_RenderFillRect(ctx->renderer, &rect);
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SDL_SetRenderDrawColor(ctx->renderer, r, g, b, a);
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if (value < 0) {
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SDL_SetRenderDrawColor(ctx->renderer, 8, 200, 16, SDL_ALPHA_OPAQUE);
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rect.w = ((float)value / SDL_MIN_SINT16) * arrow_extent;
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rect.x = dst.x + arrow_extent - rect.w;
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rect.y = dst.y + ctx->arrow_height * 0.25f;
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rect.h = ctx->arrow_height / 2.0f;
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SDL_RenderFillRect(ctx->renderer, &rect);
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}
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dst.x += arrow_extent;
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if (value > 0) {
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SDL_SetRenderDrawColor(ctx->renderer, 8, 200, 16, SDL_ALPHA_OPAQUE);
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rect.w = ((float)value / SDL_MAX_SINT16) * arrow_extent;
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rect.x = dst.x;
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rect.y = dst.y + ctx->arrow_height * 0.25f;
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rect.h = ctx->arrow_height / 2.0f;
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SDL_RenderFillRect(ctx->renderer, &rect);
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}
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dst.x += arrow_extent;
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if (value == SDL_MAX_SINT16) {
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if (has_negative) {
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if (value == SDL_MIN_SINT16) {
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SDL_SetTextureColorMod(ctx->arrow_texture, 10, 255, 21);
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} else {
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SDL_SetTextureColorMod(ctx->arrow_texture, 255, 255, 255);
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}
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SDL_RenderTexture(ctx->renderer, ctx->arrow_texture, NULL, &dst);
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SDL_RenderTextureRotated(ctx->renderer, ctx->arrow_texture, NULL, &dst, 0.0f, NULL, SDL_FLIP_HORIZONTAL);
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}
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dst.x += (float)ctx->arrow_width;
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SDL_SetRenderDrawColor(ctx->renderer, 200, 200, 200, SDL_ALPHA_OPAQUE);
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rect.x = dst.x + arrow_extent - 2.0f;
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rect.y = dst.y;
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rect.w = 4.0f;
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rect.h = (float)ctx->arrow_height;
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SDL_RenderFillRect(ctx->renderer, &rect);
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SDL_SetRenderDrawColor(ctx->renderer, r, g, b, a);
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if (value < 0) {
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SDL_SetRenderDrawColor(ctx->renderer, 8, 200, 16, SDL_ALPHA_OPAQUE);
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rect.w = ((float)value / SDL_MIN_SINT16) * arrow_extent;
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rect.x = dst.x + arrow_extent - rect.w;
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rect.y = dst.y + ctx->arrow_height * 0.25f;
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rect.h = ctx->arrow_height / 2.0f;
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SDL_RenderFillRect(ctx->renderer, &rect);
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}
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if (has_negative && GetAxisBindingString(axis, -1, mapping, binding, sizeof(binding))) {
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float text_x;
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SDL_SetRenderDrawColor(ctx->renderer, r, g, b, a);
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y += ctx->button_height + 2;
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text_x = dst.x + arrow_extent / 2 - ((float)FONT_CHARACTER_SIZE * SDL_strlen(binding)) / 2;
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SDLTest_DrawString(ctx->renderer, text_x, y, binding);
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}
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dst.x += arrow_extent;
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if (value > 0) {
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SDL_SetRenderDrawColor(ctx->renderer, 8, 200, 16, SDL_ALPHA_OPAQUE);
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rect.w = ((float)value / SDL_MAX_SINT16) * arrow_extent;
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rect.x = dst.x;
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rect.y = dst.y + ctx->arrow_height * 0.25f;
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rect.h = ctx->arrow_height / 2.0f;
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SDL_RenderFillRect(ctx->renderer, &rect);
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}
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if (GetAxisBindingString(axis, 1, mapping, binding, sizeof(binding))) {
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float text_x;
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SDL_SetRenderDrawColor(ctx->renderer, r, g, b, a);
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text_x = dst.x + arrow_extent / 2 - ((float)FONT_CHARACTER_SIZE * SDL_strlen(binding)) / 2;
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SDLTest_DrawString(ctx->renderer, text_x, y, binding);
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}
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dst.x += arrow_extent;
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if (value == SDL_MAX_SINT16) {
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SDL_SetTextureColorMod(ctx->arrow_texture, 10, 255, 21);
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} else {
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SDL_SetTextureColorMod(ctx->arrow_texture, 255, 255, 255);
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}
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SDL_RenderTexture(ctx->renderer, ctx->arrow_texture, NULL, &dst);
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SDL_SetRenderDrawColor(ctx->renderer, r, g, b, a);
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y += ctx->button_height + 2;
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}
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if (SDL_GetNumGamepadTouchpads(gamepad) > 0) {
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@ -783,6 +887,8 @@ void RenderGamepadDisplay(GamepadDisplay *ctx, SDL_Gamepad *gamepad)
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y += ctx->button_height + 2.0f;
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}
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}
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SDL_free(mapping);
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}
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void DestroyGamepadDisplay(GamepadDisplay *ctx)
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