working hover

1 files changed, 65 insertions, 22 deletions

diff --git a/hover.c b/hover.c
index 8b4794a..ebb3d8e 100644
--- a/hover.c
+++ b/hover.c
@@ -2,29 +2,37 @@
 
 void hover_close(Ted *ted) {
 	Hover *hover = &ted->hover;
-	hover->time = 0.0;
 	hover->open = false;
 	free(hover->text);
 	hover->text = NULL;
 }
 
-void hover_send_request(Ted *ted) {
+static bool get_hover_position(Ted *ted, LSPDocumentPosition *pos, LSP **lsp) {
 	// find the buffer where the mouse is
 	for (int i = 0; i < TED_MAX_BUFFERS; ++i) {
 		TextBuffer *buffer = &ted->buffers[i];
 		if (!buffer->filename) continue;
-		LSP *lsp = buffer_lsp(buffer);
-		if (!lsp) continue;
+		LSP *l = buffer_lsp(buffer);
+		if (!l) continue;
 		BufferPos mouse_pos = {0};
 		if (buffer_pixels_to_pos(buffer, ted->mouse_pos, &mouse_pos)) {
-			// send the request
-			LSPRequest request = {.type = LSP_REQUEST_HOVER};
-			LSPRequestHover *h = &request.data.hover;
-			h->position = buffer_pos_to_lsp_document_position(buffer, mouse_pos);
-			lsp_send_request(lsp, &request);
-			break;
+			*pos = buffer_pos_to_lsp_document_position(buffer, mouse_pos);
+			*lsp = l;
+			return true;
 		}
 	}
+	return false;
+}
+void hover_send_request(Ted *ted) {
+	Hover *hover = &ted->hover;
+	LSPRequest request = {.type = LSP_REQUEST_HOVER};
+	LSPRequestHover *h = &request.data.hover;
+	LSP *lsp = NULL;
+	if (get_hover_position(ted, &h->position, &lsp)) {
+		hover->requested_position = h->position;
+		hover->requested_lsp = lsp->id;
+		lsp_send_request(lsp, &request);
+	}	
 }
 
 void hover_process_lsp_response(Ted *ted, LSPResponse *response) {
@@ -50,30 +58,65 @@ void hover_process_lsp_response(Ted *ted, LSPResponse *response) {
 void hover_frame(Ted *ted, double dt) {
 	Hover *hover = &ted->hover;
 	
-	if (ted->autocomplete.open) {
+	bool shift_down = SDL_GetKeyboardState(NULL)[SDL_SCANCODE_LSHIFT]
+		|| SDL_GetKeyboardState(NULL)[SDL_SCANCODE_RSHIFT];
+	
+	if (!shift_down) {
 		hover_close(ted);
 	}
 	
+	(void)dt;
 	if (!hover->open) {
-		hover->time += dt;
-		if (hover->time > 1.0) {
+		if (shift_down) {
 			hover_send_request(ted);
 			hover->open = true;
 		}
 		return;
 	}
 	
+	{
+		LSPDocumentPosition pos={0};
+		LSP *lsp=0;
+		if (get_hover_position(ted, &pos, &lsp)) {
+			if (lsp->id != hover->requested_lsp
+				|| !lsp_document_position_eq(pos, hover->requested_position)) {
+				// refresh hover
+				hover_send_request(ted);
+			}
+		} else {
+			hover_close(ted);
+			return;
+		}
+	}
+	
 	if (!hover->text)
 		return;
 	
+	const Settings *settings = ted_active_settings(ted);
+	const u32 *colors = settings->colors;
 	const char *text = hover->text;
-	u16 lines = 0; // number of lines of text
-	for (int i = 0; text[i]; ++i)
-		if (text[i] == '\n')
-			++lines;
-	
-	//Font *font = ted->font;
-	//float width = 200, height = lines * font->char_height;
-	
-	
+	Font *font = ted->font;
+	float x = ted->mouse_pos.x, y = ted->mouse_pos.y;
+	TextRenderState state = text_render_state_default;
+	state.x = state.min_x = x;
+	state.y = state.min_y = y;
+	state.render = false;
+	state.wrap = true;
+	state.max_x = x + 400;
+	state.max_y = ted->window_height;
+	text_utf8_with_state(font, &state, text);
+	float width = (float)(state.x_largest - x);
+	float height = (float)(state.y_largest - y) + font->char_height;
+	if (height > 300) {
+		height = 300;
+	}
+	state.x = x;
+	state.y = y;
+	state.render = true;
+	state.max_y = y + height;
+	gl_geometry_rect(rect_xywh(x, y, width, height), colors[COLOR_AUTOCOMPLETE_BG]);
+	rgba_u32_to_floats(colors[COLOR_TEXT], state.color);
+	text_utf8_with_state(font, &state, text);
+	gl_geometry_draw();
+	text_render(font);
 }